diff -druNp --no-dereference linux-libre-5.4.15-gnu/arch/powerpc/include/asm/book3s/64/mmu-hash.h linux-libre-5.4.16-gnu/arch/powerpc/include/asm/book3s/64/mmu-hash.h
--- linux-libre-5.4.15-gnu/arch/powerpc/include/asm/book3s/64/mmu-hash.h	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/arch/powerpc/include/asm/book3s/64/mmu-hash.h	2020-01-29 10:45:34.000000000 -0500
@@ -600,8 +600,11 @@ extern void slb_set_size(u16 size);
  *
  */
 #define MAX_USER_CONTEXT	((ASM_CONST(1) << CONTEXT_BITS) - 2)
+
+// The + 2 accounts for INVALID_REGION and 1 more to avoid overlap with kernel
 #define MIN_USER_CONTEXT	(MAX_KERNEL_CTX_CNT + MAX_VMALLOC_CTX_CNT + \
-				 MAX_IO_CTX_CNT + MAX_VMEMMAP_CTX_CNT)
+				 MAX_IO_CTX_CNT + MAX_VMEMMAP_CTX_CNT + 2)
+
 /*
  * For platforms that support on 65bit VA we limit the context bits
  */
diff -druNp --no-dereference linux-libre-5.4.15-gnu/arch/powerpc/include/asm/xive-regs.h linux-libre-5.4.16-gnu/arch/powerpc/include/asm/xive-regs.h
--- linux-libre-5.4.15-gnu/arch/powerpc/include/asm/xive-regs.h	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/arch/powerpc/include/asm/xive-regs.h	2020-01-29 10:45:34.000000000 -0500
@@ -39,6 +39,7 @@
 
 #define XIVE_ESB_VAL_P		0x2
 #define XIVE_ESB_VAL_Q		0x1
+#define XIVE_ESB_INVALID	0xFF
 
 /*
  * Thread Management (aka "TM") registers
diff -druNp --no-dereference linux-libre-5.4.15-gnu/arch/powerpc/sysdev/xive/common.c linux-libre-5.4.16-gnu/arch/powerpc/sysdev/xive/common.c
--- linux-libre-5.4.15-gnu/arch/powerpc/sysdev/xive/common.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/arch/powerpc/sysdev/xive/common.c	2020-01-29 10:45:34.000000000 -0500
@@ -972,12 +972,21 @@ static int xive_get_irqchip_state(struct
 				  enum irqchip_irq_state which, bool *state)
 {
 	struct xive_irq_data *xd = irq_data_get_irq_handler_data(data);
+	u8 pq;
 
 	switch (which) {
 	case IRQCHIP_STATE_ACTIVE:
-		*state = !xd->stale_p &&
-			 (xd->saved_p ||
-			  !!(xive_esb_read(xd, XIVE_ESB_GET) & XIVE_ESB_VAL_P));
+		pq = xive_esb_read(xd, XIVE_ESB_GET);
+
+		/*
+		 * The esb value being all 1's means we couldn't get
+		 * the PQ state of the interrupt through mmio. It may
+		 * happen, for example when querying a PHB interrupt
+		 * while the PHB is in an error state. We consider the
+		 * interrupt to be inactive in that case.
+		 */
+		*state = (pq != XIVE_ESB_INVALID) && !xd->stale_p &&
+			(xd->saved_p || !!(pq & XIVE_ESB_VAL_P));
 		return 0;
 	default:
 		return -EINVAL;
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/atm/firestream.c linux-libre-5.4.16-gnu/drivers/atm/firestream.c
--- linux-libre-5.4.15-gnu/drivers/atm/firestream.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/atm/firestream.c	2020-01-29 10:45:34.000000000 -0500
@@ -912,6 +912,7 @@ static int fs_open(struct atm_vcc *atm_v
 			}
 			if (!to) {
 				printk ("No more free channels for FS50..\n");
+				kfree(vcc);
 				return -EBUSY;
 			}
 			vcc->channo = dev->channo;
@@ -922,6 +923,7 @@ static int fs_open(struct atm_vcc *atm_v
 			if (((DO_DIRECTION(rxtp) && dev->atm_vccs[vcc->channo])) ||
 			    ( DO_DIRECTION(txtp) && test_bit (vcc->channo, dev->tx_inuse))) {
 				printk ("Channel is in use for FS155.\n");
+				kfree(vcc);
 				return -EBUSY;
 			}
 		}
@@ -935,6 +937,7 @@ static int fs_open(struct atm_vcc *atm_v
 			    tc, sizeof (struct fs_transmit_config));
 		if (!tc) {
 			fs_dprintk (FS_DEBUG_OPEN, "fs: can't alloc transmit_config.\n");
+			kfree(vcc);
 			return -ENOMEM;
 		}
 
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/gpu/drm/i915/gem/i915_gem_busy.c linux-libre-5.4.16-gnu/drivers/gpu/drm/i915/gem/i915_gem_busy.c
--- linux-libre-5.4.15-gnu/drivers/gpu/drm/i915/gem/i915_gem_busy.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/gpu/drm/i915/gem/i915_gem_busy.c	2020-01-29 10:45:34.000000000 -0500
@@ -9,16 +9,16 @@
 #include "i915_gem_ioctls.h"
 #include "i915_gem_object.h"
 
-static __always_inline u32 __busy_read_flag(u8 id)
+static __always_inline u32 __busy_read_flag(u16 id)
 {
-	if (id == (u8)I915_ENGINE_CLASS_INVALID)
+	if (id == (u16)I915_ENGINE_CLASS_INVALID)
 		return 0xffff0000u;
 
 	GEM_BUG_ON(id >= 16);
 	return 0x10000u << id;
 }
 
-static __always_inline u32 __busy_write_id(u8 id)
+static __always_inline u32 __busy_write_id(u16 id)
 {
 	/*
 	 * The uABI guarantees an active writer is also amongst the read
@@ -29,14 +29,14 @@ static __always_inline u32 __busy_write_
 	 * last_read - hence we always set both read and write busy for
 	 * last_write.
 	 */
-	if (id == (u8)I915_ENGINE_CLASS_INVALID)
+	if (id == (u16)I915_ENGINE_CLASS_INVALID)
 		return 0xffffffffu;
 
 	return (id + 1) | __busy_read_flag(id);
 }
 
 static __always_inline unsigned int
-__busy_set_if_active(const struct dma_fence *fence, u32 (*flag)(u8 id))
+__busy_set_if_active(const struct dma_fence *fence, u32 (*flag)(u16 id))
 {
 	const struct i915_request *rq;
 
@@ -57,7 +57,7 @@ __busy_set_if_active(const struct dma_fe
 		return 0;
 
 	/* Beware type-expansion follies! */
-	BUILD_BUG_ON(!typecheck(u8, rq->engine->uabi_class));
+	BUILD_BUG_ON(!typecheck(u16, rq->engine->uabi_class));
 	return flag(rq->engine->uabi_class);
 }
 
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/gpu/drm/i915/gem/i915_gem_userptr.c linux-libre-5.4.16-gnu/drivers/gpu/drm/i915/gem/i915_gem_userptr.c
--- linux-libre-5.4.15-gnu/drivers/gpu/drm/i915/gem/i915_gem_userptr.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/gpu/drm/i915/gem/i915_gem_userptr.c	2020-01-29 10:45:34.000000000 -0500
@@ -427,7 +427,7 @@ struct get_pages_work {
 
 static struct sg_table *
 __i915_gem_userptr_alloc_pages(struct drm_i915_gem_object *obj,
-			       struct page **pvec, int num_pages)
+			       struct page **pvec, unsigned long num_pages)
 {
 	unsigned int max_segment = i915_sg_segment_size();
 	struct sg_table *st;
@@ -473,9 +473,10 @@ __i915_gem_userptr_get_pages_worker(stru
 {
 	struct get_pages_work *work = container_of(_work, typeof(*work), work);
 	struct drm_i915_gem_object *obj = work->obj;
-	const int npages = obj->base.size >> PAGE_SHIFT;
+	const unsigned long npages = obj->base.size >> PAGE_SHIFT;
+	unsigned long pinned;
 	struct page **pvec;
-	int pinned, ret;
+	int ret;
 
 	ret = -ENOMEM;
 	pinned = 0;
@@ -578,7 +579,7 @@ __i915_gem_userptr_get_pages_schedule(st
 
 static int i915_gem_userptr_get_pages(struct drm_i915_gem_object *obj)
 {
-	const int num_pages = obj->base.size >> PAGE_SHIFT;
+	const unsigned long num_pages = obj->base.size >> PAGE_SHIFT;
 	struct mm_struct *mm = obj->userptr.mm->mm;
 	struct page **pvec;
 	struct sg_table *pages;
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/gpu/drm/i915/gt/intel_engine_types.h linux-libre-5.4.16-gnu/drivers/gpu/drm/i915/gt/intel_engine_types.h
--- linux-libre-5.4.15-gnu/drivers/gpu/drm/i915/gt/intel_engine_types.h	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/gpu/drm/i915/gt/intel_engine_types.h	2020-01-29 10:45:34.000000000 -0500
@@ -300,8 +300,8 @@ struct intel_engine_cs {
 	u8 class;
 	u8 instance;
 
-	u8 uabi_class;
-	u8 uabi_instance;
+	u16 uabi_class;
+	u16 uabi_instance;
 
 	u32 context_size;
 	u32 mmio_base;
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/gpu/drm/i915/i915_gem_gtt.c linux-libre-5.4.16-gnu/drivers/gpu/drm/i915/i915_gem_gtt.c
--- linux-libre-5.4.15-gnu/drivers/gpu/drm/i915/i915_gem_gtt.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/gpu/drm/i915/i915_gem_gtt.c	2020-01-29 10:45:34.000000000 -0500
@@ -1178,6 +1178,7 @@ gen8_ppgtt_insert_pte(struct i915_ppgtt
 	pd = i915_pd_entry(pdp, gen8_pd_index(idx, 2));
 	vaddr = kmap_atomic_px(i915_pt_entry(pd, gen8_pd_index(idx, 1)));
 	do {
+		GEM_BUG_ON(iter->sg->length < I915_GTT_PAGE_SIZE);
 		vaddr[gen8_pd_index(idx, 0)] = pte_encode | iter->dma;
 
 		iter->dma += I915_GTT_PAGE_SIZE;
@@ -1657,6 +1658,7 @@ static void gen6_ppgtt_insert_entries(st
 
 	vaddr = kmap_atomic_px(i915_pt_entry(pd, act_pt));
 	do {
+		GEM_BUG_ON(iter.sg->length < I915_GTT_PAGE_SIZE);
 		vaddr[act_pte] = pte_encode | GEN6_PTE_ADDR_ENCODE(iter.dma);
 
 		iter.dma += I915_GTT_PAGE_SIZE;
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/gpu/drm/panfrost/panfrost_drv.c linux-libre-5.4.16-gnu/drivers/gpu/drm/panfrost/panfrost_drv.c
--- linux-libre-5.4.15-gnu/drivers/gpu/drm/panfrost/panfrost_drv.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/gpu/drm/panfrost/panfrost_drv.c	2020-01-29 10:45:34.000000000 -0500
@@ -78,8 +78,10 @@ static int panfrost_ioctl_get_param(stru
 static int panfrost_ioctl_create_bo(struct drm_device *dev, void *data,
 		struct drm_file *file)
 {
+	struct panfrost_file_priv *priv = file->driver_priv;
 	struct panfrost_gem_object *bo;
 	struct drm_panfrost_create_bo *args = data;
+	struct panfrost_gem_mapping *mapping;
 
 	if (!args->size || args->pad ||
 	    (args->flags & ~(PANFROST_BO_NOEXEC | PANFROST_BO_HEAP)))
@@ -95,7 +97,14 @@ static int panfrost_ioctl_create_bo(stru
 	if (IS_ERR(bo))
 		return PTR_ERR(bo);
 
-	args->offset = bo->node.start << PAGE_SHIFT;
+	mapping = panfrost_gem_mapping_get(bo, priv);
+	if (!mapping) {
+		drm_gem_object_put_unlocked(&bo->base.base);
+		return -EINVAL;
+	}
+
+	args->offset = mapping->mmnode.start << PAGE_SHIFT;
+	panfrost_gem_mapping_put(mapping);
 
 	return 0;
 }
@@ -119,6 +128,11 @@ panfrost_lookup_bos(struct drm_device *d
 		  struct drm_panfrost_submit *args,
 		  struct panfrost_job *job)
 {
+	struct panfrost_file_priv *priv = file_priv->driver_priv;
+	struct panfrost_gem_object *bo;
+	unsigned int i;
+	int ret;
+
 	job->bo_count = args->bo_handle_count;
 
 	if (!job->bo_count)
@@ -130,9 +144,32 @@ panfrost_lookup_bos(struct drm_device *d
 	if (!job->implicit_fences)
 		return -ENOMEM;
 
-	return drm_gem_objects_lookup(file_priv,
-				      (void __user *)(uintptr_t)args->bo_handles,
-				      job->bo_count, &job->bos);
+	ret = drm_gem_objects_lookup(file_priv,
+				     (void __user *)(uintptr_t)args->bo_handles,
+				     job->bo_count, &job->bos);
+	if (ret)
+		return ret;
+
+	job->mappings = kvmalloc_array(job->bo_count,
+				       sizeof(struct panfrost_gem_mapping *),
+				       GFP_KERNEL | __GFP_ZERO);
+	if (!job->mappings)
+		return -ENOMEM;
+
+	for (i = 0; i < job->bo_count; i++) {
+		struct panfrost_gem_mapping *mapping;
+
+		bo = to_panfrost_bo(job->bos[i]);
+		mapping = panfrost_gem_mapping_get(bo, priv);
+		if (!mapping) {
+			ret = -EINVAL;
+			break;
+		}
+
+		job->mappings[i] = mapping;
+	}
+
+	return ret;
 }
 
 /**
@@ -320,7 +357,9 @@ out:
 static int panfrost_ioctl_get_bo_offset(struct drm_device *dev, void *data,
 			    struct drm_file *file_priv)
 {
+	struct panfrost_file_priv *priv = file_priv->driver_priv;
 	struct drm_panfrost_get_bo_offset *args = data;
+	struct panfrost_gem_mapping *mapping;
 	struct drm_gem_object *gem_obj;
 	struct panfrost_gem_object *bo;
 
@@ -331,18 +370,26 @@ static int panfrost_ioctl_get_bo_offset(
 	}
 	bo = to_panfrost_bo(gem_obj);
 
-	args->offset = bo->node.start << PAGE_SHIFT;
-
+	mapping = panfrost_gem_mapping_get(bo, priv);
 	drm_gem_object_put_unlocked(gem_obj);
+
+	if (!mapping)
+		return -EINVAL;
+
+	args->offset = mapping->mmnode.start << PAGE_SHIFT;
+	panfrost_gem_mapping_put(mapping);
 	return 0;
 }
 
 static int panfrost_ioctl_madvise(struct drm_device *dev, void *data,
 				  struct drm_file *file_priv)
 {
+	struct panfrost_file_priv *priv = file_priv->driver_priv;
 	struct drm_panfrost_madvise *args = data;
 	struct panfrost_device *pfdev = dev->dev_private;
 	struct drm_gem_object *gem_obj;
+	struct panfrost_gem_object *bo;
+	int ret = 0;
 
 	gem_obj = drm_gem_object_lookup(file_priv, args->handle);
 	if (!gem_obj) {
@@ -350,22 +397,48 @@ static int panfrost_ioctl_madvise(struct
 		return -ENOENT;
 	}
 
+	bo = to_panfrost_bo(gem_obj);
+
 	mutex_lock(&pfdev->shrinker_lock);
+	mutex_lock(&bo->mappings.lock);
+	if (args->madv == PANFROST_MADV_DONTNEED) {
+		struct panfrost_gem_mapping *first;
+
+		first = list_first_entry(&bo->mappings.list,
+					 struct panfrost_gem_mapping,
+					 node);
+
+		/*
+		 * If we want to mark the BO purgeable, there must be only one
+		 * user: the caller FD.
+		 * We could do something smarter and mark the BO purgeable only
+		 * when all its users have marked it purgeable, but globally
+		 * visible/shared BOs are likely to never be marked purgeable
+		 * anyway, so let's not bother.
+		 */
+		if (!list_is_singular(&bo->mappings.list) ||
+		    WARN_ON_ONCE(first->mmu != &priv->mmu)) {
+			ret = -EINVAL;
+			goto out_unlock_mappings;
+		}
+	}
+
 	args->retained = drm_gem_shmem_madvise(gem_obj, args->madv);
 
 	if (args->retained) {
-		struct panfrost_gem_object *bo = to_panfrost_bo(gem_obj);
-
 		if (args->madv == PANFROST_MADV_DONTNEED)
 			list_add_tail(&bo->base.madv_list,
 				      &pfdev->shrinker_list);
 		else if (args->madv == PANFROST_MADV_WILLNEED)
 			list_del_init(&bo->base.madv_list);
 	}
+
+out_unlock_mappings:
+	mutex_unlock(&bo->mappings.lock);
 	mutex_unlock(&pfdev->shrinker_lock);
 
 	drm_gem_object_put_unlocked(gem_obj);
-	return 0;
+	return ret;
 }
 
 int panfrost_unstable_ioctl_check(void)
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/gpu/drm/panfrost/panfrost_gem.c linux-libre-5.4.16-gnu/drivers/gpu/drm/panfrost/panfrost_gem.c
--- linux-libre-5.4.15-gnu/drivers/gpu/drm/panfrost/panfrost_gem.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/gpu/drm/panfrost/panfrost_gem.c	2020-01-29 10:45:34.000000000 -0500
@@ -29,6 +29,12 @@ static void panfrost_gem_free_object(str
 	list_del_init(&bo->base.madv_list);
 	mutex_unlock(&pfdev->shrinker_lock);
 
+	/*
+	 * If we still have mappings attached to the BO, there's a problem in
+	 * our refcounting.
+	 */
+	WARN_ON_ONCE(!list_empty(&bo->mappings.list));
+
 	if (bo->sgts) {
 		int i;
 		int n_sgt = bo->base.base.size / SZ_2M;
@@ -46,6 +52,69 @@ static void panfrost_gem_free_object(str
 	drm_gem_shmem_free_object(obj);
 }
 
+struct panfrost_gem_mapping *
+panfrost_gem_mapping_get(struct panfrost_gem_object *bo,
+			 struct panfrost_file_priv *priv)
+{
+	struct panfrost_gem_mapping *iter, *mapping = NULL;
+
+	mutex_lock(&bo->mappings.lock);
+	list_for_each_entry(iter, &bo->mappings.list, node) {
+		if (iter->mmu == &priv->mmu) {
+			kref_get(&iter->refcount);
+			mapping = iter;
+			break;
+		}
+	}
+	mutex_unlock(&bo->mappings.lock);
+
+	return mapping;
+}
+
+static void
+panfrost_gem_teardown_mapping(struct panfrost_gem_mapping *mapping)
+{
+	struct panfrost_file_priv *priv;
+
+	if (mapping->active)
+		panfrost_mmu_unmap(mapping);
+
+	priv = container_of(mapping->mmu, struct panfrost_file_priv, mmu);
+	spin_lock(&priv->mm_lock);
+	if (drm_mm_node_allocated(&mapping->mmnode))
+		drm_mm_remove_node(&mapping->mmnode);
+	spin_unlock(&priv->mm_lock);
+}
+
+static void panfrost_gem_mapping_release(struct kref *kref)
+{
+	struct panfrost_gem_mapping *mapping;
+
+	mapping = container_of(kref, struct panfrost_gem_mapping, refcount);
+
+	panfrost_gem_teardown_mapping(mapping);
+	drm_gem_object_put_unlocked(&mapping->obj->base.base);
+	kfree(mapping);
+}
+
+void panfrost_gem_mapping_put(struct panfrost_gem_mapping *mapping)
+{
+	if (!mapping)
+		return;
+
+	kref_put(&mapping->refcount, panfrost_gem_mapping_release);
+}
+
+void panfrost_gem_teardown_mappings(struct panfrost_gem_object *bo)
+{
+	struct panfrost_gem_mapping *mapping;
+
+	mutex_lock(&bo->mappings.lock);
+	list_for_each_entry(mapping, &bo->mappings.list, node)
+		panfrost_gem_teardown_mapping(mapping);
+	mutex_unlock(&bo->mappings.lock);
+}
+
 int panfrost_gem_open(struct drm_gem_object *obj, struct drm_file *file_priv)
 {
 	int ret;
@@ -54,6 +123,16 @@ int panfrost_gem_open(struct drm_gem_obj
 	struct panfrost_gem_object *bo = to_panfrost_bo(obj);
 	unsigned long color = bo->noexec ? PANFROST_BO_NOEXEC : 0;
 	struct panfrost_file_priv *priv = file_priv->driver_priv;
+	struct panfrost_gem_mapping *mapping;
+
+	mapping = kzalloc(sizeof(*mapping), GFP_KERNEL);
+	if (!mapping)
+		return -ENOMEM;
+
+	INIT_LIST_HEAD(&mapping->node);
+	kref_init(&mapping->refcount);
+	drm_gem_object_get(obj);
+	mapping->obj = bo;
 
 	/*
 	 * Executable buffers cannot cross a 16MB boundary as the program
@@ -66,37 +145,48 @@ int panfrost_gem_open(struct drm_gem_obj
 	else
 		align = size >= SZ_2M ? SZ_2M >> PAGE_SHIFT : 0;
 
-	bo->mmu = &priv->mmu;
+	mapping->mmu = &priv->mmu;
 	spin_lock(&priv->mm_lock);
-	ret = drm_mm_insert_node_generic(&priv->mm, &bo->node,
+	ret = drm_mm_insert_node_generic(&priv->mm, &mapping->mmnode,
 					 size >> PAGE_SHIFT, align, color, 0);
 	spin_unlock(&priv->mm_lock);
 	if (ret)
-		return ret;
+		goto err;
 
 	if (!bo->is_heap) {
-		ret = panfrost_mmu_map(bo);
-		if (ret) {
-			spin_lock(&priv->mm_lock);
-			drm_mm_remove_node(&bo->node);
-			spin_unlock(&priv->mm_lock);
-		}
+		ret = panfrost_mmu_map(mapping);
+		if (ret)
+			goto err;
 	}
+
+	mutex_lock(&bo->mappings.lock);
+	WARN_ON(bo->base.madv != PANFROST_MADV_WILLNEED);
+	list_add_tail(&mapping->node, &bo->mappings.list);
+	mutex_unlock(&bo->mappings.lock);
+
+err:
+	if (ret)
+		panfrost_gem_mapping_put(mapping);
 	return ret;
 }
 
 void panfrost_gem_close(struct drm_gem_object *obj, struct drm_file *file_priv)
 {
-	struct panfrost_gem_object *bo = to_panfrost_bo(obj);
 	struct panfrost_file_priv *priv = file_priv->driver_priv;
+	struct panfrost_gem_object *bo = to_panfrost_bo(obj);
+	struct panfrost_gem_mapping *mapping = NULL, *iter;
 
-	if (bo->is_mapped)
-		panfrost_mmu_unmap(bo);
+	mutex_lock(&bo->mappings.lock);
+	list_for_each_entry(iter, &bo->mappings.list, node) {
+		if (iter->mmu == &priv->mmu) {
+			mapping = iter;
+			list_del(&iter->node);
+			break;
+		}
+	}
+	mutex_unlock(&bo->mappings.lock);
 
-	spin_lock(&priv->mm_lock);
-	if (drm_mm_node_allocated(&bo->node))
-		drm_mm_remove_node(&bo->node);
-	spin_unlock(&priv->mm_lock);
+	panfrost_gem_mapping_put(mapping);
 }
 
 static int panfrost_gem_pin(struct drm_gem_object *obj)
@@ -136,6 +226,8 @@ struct drm_gem_object *panfrost_gem_crea
 	if (!obj)
 		return NULL;
 
+	INIT_LIST_HEAD(&obj->mappings.list);
+	mutex_init(&obj->mappings.lock);
 	obj->base.base.funcs = &panfrost_gem_funcs;
 
 	return &obj->base.base;
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/gpu/drm/panfrost/panfrost_gem.h linux-libre-5.4.16-gnu/drivers/gpu/drm/panfrost/panfrost_gem.h
--- linux-libre-5.4.15-gnu/drivers/gpu/drm/panfrost/panfrost_gem.h	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/gpu/drm/panfrost/panfrost_gem.h	2020-01-29 10:45:34.000000000 -0500
@@ -13,23 +13,46 @@ struct panfrost_gem_object {
 	struct drm_gem_shmem_object base;
 	struct sg_table *sgts;
 
-	struct panfrost_mmu *mmu;
-	struct drm_mm_node node;
-	bool is_mapped		:1;
+	/*
+	 * Use a list for now. If searching a mapping ever becomes the
+	 * bottleneck, we should consider using an RB-tree, or even better,
+	 * let the core store drm_gem_object_mapping entries (where we
+	 * could place driver specific data) instead of drm_gem_object ones
+	 * in its drm_file->object_idr table.
+	 *
+	 * struct drm_gem_object_mapping {
+	 *	struct drm_gem_object *obj;
+	 *	void *driver_priv;
+	 * };
+	 */
+	struct {
+		struct list_head list;
+		struct mutex lock;
+	} mappings;
+
 	bool noexec		:1;
 	bool is_heap		:1;
 };
 
+struct panfrost_gem_mapping {
+	struct list_head node;
+	struct kref refcount;
+	struct panfrost_gem_object *obj;
+	struct drm_mm_node mmnode;
+	struct panfrost_mmu *mmu;
+	bool active		:1;
+};
+
 static inline
 struct  panfrost_gem_object *to_panfrost_bo(struct drm_gem_object *obj)
 {
 	return container_of(to_drm_gem_shmem_obj(obj), struct panfrost_gem_object, base);
 }
 
-static inline
-struct  panfrost_gem_object *drm_mm_node_to_panfrost_bo(struct drm_mm_node *node)
+static inline struct panfrost_gem_mapping *
+drm_mm_node_to_panfrost_mapping(struct drm_mm_node *node)
 {
-	return container_of(node, struct panfrost_gem_object, node);
+	return container_of(node, struct panfrost_gem_mapping, mmnode);
 }
 
 struct drm_gem_object *panfrost_gem_create_object(struct drm_device *dev, size_t size);
@@ -49,6 +72,12 @@ int panfrost_gem_open(struct drm_gem_obj
 void panfrost_gem_close(struct drm_gem_object *obj,
 			struct drm_file *file_priv);
 
+struct panfrost_gem_mapping *
+panfrost_gem_mapping_get(struct panfrost_gem_object *bo,
+			 struct panfrost_file_priv *priv);
+void panfrost_gem_mapping_put(struct panfrost_gem_mapping *mapping);
+void panfrost_gem_teardown_mappings(struct panfrost_gem_object *bo);
+
 void panfrost_gem_shrinker_init(struct drm_device *dev);
 void panfrost_gem_shrinker_cleanup(struct drm_device *dev);
 
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/gpu/drm/panfrost/panfrost_gem_shrinker.c linux-libre-5.4.16-gnu/drivers/gpu/drm/panfrost/panfrost_gem_shrinker.c
--- linux-libre-5.4.15-gnu/drivers/gpu/drm/panfrost/panfrost_gem_shrinker.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/gpu/drm/panfrost/panfrost_gem_shrinker.c	2020-01-29 10:45:34.000000000 -0500
@@ -39,11 +39,12 @@ panfrost_gem_shrinker_count(struct shrin
 static bool panfrost_gem_purge(struct drm_gem_object *obj)
 {
 	struct drm_gem_shmem_object *shmem = to_drm_gem_shmem_obj(obj);
+	struct panfrost_gem_object *bo = to_panfrost_bo(obj);
 
 	if (!mutex_trylock(&shmem->pages_lock))
 		return false;
 
-	panfrost_mmu_unmap(to_panfrost_bo(obj));
+	panfrost_gem_teardown_mappings(bo);
 	drm_gem_shmem_purge_locked(obj);
 
 	mutex_unlock(&shmem->pages_lock);
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/gpu/drm/panfrost/panfrost_job.c linux-libre-5.4.16-gnu/drivers/gpu/drm/panfrost/panfrost_job.c
--- linux-libre-5.4.15-gnu/drivers/gpu/drm/panfrost/panfrost_job.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/gpu/drm/panfrost/panfrost_job.c	2020-01-29 10:45:34.000000000 -0500
@@ -269,9 +269,20 @@ static void panfrost_job_cleanup(struct
 	dma_fence_put(job->done_fence);
 	dma_fence_put(job->render_done_fence);
 
-	if (job->bos) {
+	if (job->mappings) {
 		for (i = 0; i < job->bo_count; i++)
+			panfrost_gem_mapping_put(job->mappings[i]);
+		kvfree(job->mappings);
+	}
+
+	if (job->bos) {
+		struct panfrost_gem_object *bo;
+
+		for (i = 0; i < job->bo_count; i++) {
+			bo = to_panfrost_bo(job->bos[i]);
 			drm_gem_object_put_unlocked(job->bos[i]);
+		}
+
 		kvfree(job->bos);
 	}
 
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/gpu/drm/panfrost/panfrost_job.h linux-libre-5.4.16-gnu/drivers/gpu/drm/panfrost/panfrost_job.h
--- linux-libre-5.4.15-gnu/drivers/gpu/drm/panfrost/panfrost_job.h	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/gpu/drm/panfrost/panfrost_job.h	2020-01-29 10:45:34.000000000 -0500
@@ -32,6 +32,7 @@ struct panfrost_job {
 
 	/* Exclusive fences we have taken from the BOs to wait for */
 	struct dma_fence **implicit_fences;
+	struct panfrost_gem_mapping **mappings;
 	struct drm_gem_object **bos;
 	u32 bo_count;
 
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/gpu/drm/panfrost/panfrost_mmu.c linux-libre-5.4.16-gnu/drivers/gpu/drm/panfrost/panfrost_mmu.c
--- linux-libre-5.4.15-gnu/drivers/gpu/drm/panfrost/panfrost_mmu.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/gpu/drm/panfrost/panfrost_mmu.c	2020-01-29 10:45:34.000000000 -0500
@@ -269,14 +269,15 @@ static int mmu_map_sg(struct panfrost_de
 	return 0;
 }
 
-int panfrost_mmu_map(struct panfrost_gem_object *bo)
+int panfrost_mmu_map(struct panfrost_gem_mapping *mapping)
 {
+	struct panfrost_gem_object *bo = mapping->obj;
 	struct drm_gem_object *obj = &bo->base.base;
 	struct panfrost_device *pfdev = to_panfrost_device(obj->dev);
 	struct sg_table *sgt;
 	int prot = IOMMU_READ | IOMMU_WRITE;
 
-	if (WARN_ON(bo->is_mapped))
+	if (WARN_ON(mapping->active))
 		return 0;
 
 	if (bo->noexec)
@@ -286,25 +287,28 @@ int panfrost_mmu_map(struct panfrost_gem
 	if (WARN_ON(IS_ERR(sgt)))
 		return PTR_ERR(sgt);
 
-	mmu_map_sg(pfdev, bo->mmu, bo->node.start << PAGE_SHIFT, prot, sgt);
-	bo->is_mapped = true;
+	mmu_map_sg(pfdev, mapping->mmu, mapping->mmnode.start << PAGE_SHIFT,
+		   prot, sgt);
+	mapping->active = true;
 
 	return 0;
 }
 
-void panfrost_mmu_unmap(struct panfrost_gem_object *bo)
+void panfrost_mmu_unmap(struct panfrost_gem_mapping *mapping)
 {
+	struct panfrost_gem_object *bo = mapping->obj;
 	struct drm_gem_object *obj = &bo->base.base;
 	struct panfrost_device *pfdev = to_panfrost_device(obj->dev);
-	struct io_pgtable_ops *ops = bo->mmu->pgtbl_ops;
-	u64 iova = bo->node.start << PAGE_SHIFT;
-	size_t len = bo->node.size << PAGE_SHIFT;
+	struct io_pgtable_ops *ops = mapping->mmu->pgtbl_ops;
+	u64 iova = mapping->mmnode.start << PAGE_SHIFT;
+	size_t len = mapping->mmnode.size << PAGE_SHIFT;
 	size_t unmapped_len = 0;
 
-	if (WARN_ON(!bo->is_mapped))
+	if (WARN_ON(!mapping->active))
 		return;
 
-	dev_dbg(pfdev->dev, "unmap: as=%d, iova=%llx, len=%zx", bo->mmu->as, iova, len);
+	dev_dbg(pfdev->dev, "unmap: as=%d, iova=%llx, len=%zx",
+		mapping->mmu->as, iova, len);
 
 	while (unmapped_len < len) {
 		size_t unmapped_page;
@@ -318,8 +322,9 @@ void panfrost_mmu_unmap(struct panfrost_
 		unmapped_len += pgsize;
 	}
 
-	panfrost_mmu_flush_range(pfdev, bo->mmu, bo->node.start << PAGE_SHIFT, len);
-	bo->is_mapped = false;
+	panfrost_mmu_flush_range(pfdev, mapping->mmu,
+				 mapping->mmnode.start << PAGE_SHIFT, len);
+	mapping->active = false;
 }
 
 static void mmu_tlb_inv_context_s1(void *cookie)
@@ -394,10 +399,10 @@ void panfrost_mmu_pgtable_free(struct pa
 	free_io_pgtable_ops(mmu->pgtbl_ops);
 }
 
-static struct panfrost_gem_object *
-addr_to_drm_mm_node(struct panfrost_device *pfdev, int as, u64 addr)
+static struct panfrost_gem_mapping *
+addr_to_mapping(struct panfrost_device *pfdev, int as, u64 addr)
 {
-	struct panfrost_gem_object *bo = NULL;
+	struct panfrost_gem_mapping *mapping = NULL;
 	struct panfrost_file_priv *priv;
 	struct drm_mm_node *node;
 	u64 offset = addr >> PAGE_SHIFT;
@@ -418,8 +423,9 @@ found_mmu:
 	drm_mm_for_each_node(node, &priv->mm) {
 		if (offset >= node->start &&
 		    offset < (node->start + node->size)) {
-			bo = drm_mm_node_to_panfrost_bo(node);
-			drm_gem_object_get(&bo->base.base);
+			mapping = drm_mm_node_to_panfrost_mapping(node);
+
+			kref_get(&mapping->refcount);
 			break;
 		}
 	}
@@ -427,7 +433,7 @@ found_mmu:
 	spin_unlock(&priv->mm_lock);
 out:
 	spin_unlock(&pfdev->as_lock);
-	return bo;
+	return mapping;
 }
 
 #define NUM_FAULT_PAGES (SZ_2M / PAGE_SIZE)
@@ -436,28 +442,30 @@ static int panfrost_mmu_map_fault_addr(s
 				       u64 addr)
 {
 	int ret, i;
+	struct panfrost_gem_mapping *bomapping;
 	struct panfrost_gem_object *bo;
 	struct address_space *mapping;
 	pgoff_t page_offset;
 	struct sg_table *sgt;
 	struct page **pages;
 
-	bo = addr_to_drm_mm_node(pfdev, as, addr);
-	if (!bo)
+	bomapping = addr_to_mapping(pfdev, as, addr);
+	if (!bomapping)
 		return -ENOENT;
 
+	bo = bomapping->obj;
 	if (!bo->is_heap) {
 		dev_WARN(pfdev->dev, "matching BO is not heap type (GPU VA = %llx)",
-			 bo->node.start << PAGE_SHIFT);
+			 bomapping->mmnode.start << PAGE_SHIFT);
 		ret = -EINVAL;
 		goto err_bo;
 	}
-	WARN_ON(bo->mmu->as != as);
+	WARN_ON(bomapping->mmu->as != as);
 
 	/* Assume 2MB alignment and size multiple */
 	addr &= ~((u64)SZ_2M - 1);
 	page_offset = addr >> PAGE_SHIFT;
-	page_offset -= bo->node.start;
+	page_offset -= bomapping->mmnode.start;
 
 	mutex_lock(&bo->base.pages_lock);
 
@@ -509,13 +517,14 @@ static int panfrost_mmu_map_fault_addr(s
 		goto err_map;
 	}
 
-	mmu_map_sg(pfdev, bo->mmu, addr, IOMMU_WRITE | IOMMU_READ | IOMMU_NOEXEC, sgt);
+	mmu_map_sg(pfdev, bomapping->mmu, addr,
+		   IOMMU_WRITE | IOMMU_READ | IOMMU_NOEXEC, sgt);
 
-	bo->is_mapped = true;
+	bomapping->active = true;
 
 	dev_dbg(pfdev->dev, "mapped page fault @ AS%d %llx", as, addr);
 
-	drm_gem_object_put_unlocked(&bo->base.base);
+	panfrost_gem_mapping_put(bomapping);
 
 	return 0;
 
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/gpu/drm/panfrost/panfrost_mmu.h linux-libre-5.4.16-gnu/drivers/gpu/drm/panfrost/panfrost_mmu.h
--- linux-libre-5.4.15-gnu/drivers/gpu/drm/panfrost/panfrost_mmu.h	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/gpu/drm/panfrost/panfrost_mmu.h	2020-01-29 10:45:34.000000000 -0500
@@ -4,12 +4,12 @@
 #ifndef __PANFROST_MMU_H__
 #define __PANFROST_MMU_H__
 
-struct panfrost_gem_object;
+struct panfrost_gem_mapping;
 struct panfrost_file_priv;
 struct panfrost_mmu;
 
-int panfrost_mmu_map(struct panfrost_gem_object *bo);
-void panfrost_mmu_unmap(struct panfrost_gem_object *bo);
+int panfrost_mmu_map(struct panfrost_gem_mapping *mapping);
+void panfrost_mmu_unmap(struct panfrost_gem_mapping *mapping);
 
 int panfrost_mmu_init(struct panfrost_device *pfdev);
 void panfrost_mmu_fini(struct panfrost_device *pfdev);
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/gpu/drm/panfrost/panfrost_perfcnt.c linux-libre-5.4.16-gnu/drivers/gpu/drm/panfrost/panfrost_perfcnt.c
--- linux-libre-5.4.15-gnu/drivers/gpu/drm/panfrost/panfrost_perfcnt.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/gpu/drm/panfrost/panfrost_perfcnt.c	2020-01-29 10:45:34.000000000 -0500
@@ -25,7 +25,7 @@
 #define V4_SHADERS_PER_COREGROUP	4
 
 struct panfrost_perfcnt {
-	struct panfrost_gem_object *bo;
+	struct panfrost_gem_mapping *mapping;
 	size_t bosize;
 	void *buf;
 	struct panfrost_file_priv *user;
@@ -49,7 +49,7 @@ static int panfrost_perfcnt_dump_locked(
 	int ret;
 
 	reinit_completion(&pfdev->perfcnt->dump_comp);
-	gpuva = pfdev->perfcnt->bo->node.start << PAGE_SHIFT;
+	gpuva = pfdev->perfcnt->mapping->mmnode.start << PAGE_SHIFT;
 	gpu_write(pfdev, GPU_PERFCNT_BASE_LO, gpuva);
 	gpu_write(pfdev, GPU_PERFCNT_BASE_HI, gpuva >> 32);
 	gpu_write(pfdev, GPU_INT_CLEAR,
@@ -89,17 +89,22 @@ static int panfrost_perfcnt_enable_locke
 	if (IS_ERR(bo))
 		return PTR_ERR(bo);
 
-	perfcnt->bo = to_panfrost_bo(&bo->base);
-
 	/* Map the perfcnt buf in the address space attached to file_priv. */
-	ret = panfrost_gem_open(&perfcnt->bo->base.base, file_priv);
+	ret = panfrost_gem_open(&bo->base, file_priv);
 	if (ret)
 		goto err_put_bo;
 
+	perfcnt->mapping = panfrost_gem_mapping_get(to_panfrost_bo(&bo->base),
+						    user);
+	if (!perfcnt->mapping) {
+		ret = -EINVAL;
+		goto err_close_bo;
+	}
+
 	perfcnt->buf = drm_gem_shmem_vmap(&bo->base);
 	if (IS_ERR(perfcnt->buf)) {
 		ret = PTR_ERR(perfcnt->buf);
-		goto err_close_bo;
+		goto err_put_mapping;
 	}
 
 	/*
@@ -154,12 +159,17 @@ static int panfrost_perfcnt_enable_locke
 	if (panfrost_has_hw_issue(pfdev, HW_ISSUE_8186))
 		gpu_write(pfdev, GPU_PRFCNT_TILER_EN, 0xffffffff);
 
+	/* The BO ref is retained by the mapping. */
+	drm_gem_object_put_unlocked(&bo->base);
+
 	return 0;
 
 err_vunmap:
-	drm_gem_shmem_vunmap(&perfcnt->bo->base.base, perfcnt->buf);
+	drm_gem_shmem_vunmap(&bo->base, perfcnt->buf);
+err_put_mapping:
+	panfrost_gem_mapping_put(perfcnt->mapping);
 err_close_bo:
-	panfrost_gem_close(&perfcnt->bo->base.base, file_priv);
+	panfrost_gem_close(&bo->base, file_priv);
 err_put_bo:
 	drm_gem_object_put_unlocked(&bo->base);
 	return ret;
@@ -182,11 +192,11 @@ static int panfrost_perfcnt_disable_lock
 		  GPU_PERFCNT_CFG_MODE(GPU_PERFCNT_CFG_MODE_OFF));
 
 	perfcnt->user = NULL;
-	drm_gem_shmem_vunmap(&perfcnt->bo->base.base, perfcnt->buf);
+	drm_gem_shmem_vunmap(&perfcnt->mapping->obj->base.base, perfcnt->buf);
 	perfcnt->buf = NULL;
-	panfrost_gem_close(&perfcnt->bo->base.base, file_priv);
-	drm_gem_object_put_unlocked(&perfcnt->bo->base.base);
-	perfcnt->bo = NULL;
+	panfrost_gem_close(&perfcnt->mapping->obj->base.base, file_priv);
+	panfrost_gem_mapping_put(perfcnt->mapping);
+	perfcnt->mapping = NULL;
 	pm_runtime_mark_last_busy(pfdev->dev);
 	pm_runtime_put_autosuspend(pfdev->dev);
 
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/hwmon/adt7475.c linux-libre-5.4.16-gnu/drivers/hwmon/adt7475.c
--- linux-libre-5.4.15-gnu/drivers/hwmon/adt7475.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/hwmon/adt7475.c	2020-01-29 10:45:34.000000000 -0500
@@ -294,9 +294,10 @@ static inline u16 volt2reg(int channel,
 	long reg;
 
 	if (bypass_attn & (1 << channel))
-		reg = (volt * 1024) / 2250;
+		reg = DIV_ROUND_CLOSEST(volt * 1024, 2250);
 	else
-		reg = (volt * r[1] * 1024) / ((r[0] + r[1]) * 2250);
+		reg = DIV_ROUND_CLOSEST(volt * r[1] * 1024,
+					(r[0] + r[1]) * 2250);
 	return clamp_val(reg, 0, 1023) & (0xff << 2);
 }
 
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/hwmon/hwmon.c linux-libre-5.4.16-gnu/drivers/hwmon/hwmon.c
--- linux-libre-5.4.15-gnu/drivers/hwmon/hwmon.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/hwmon/hwmon.c	2020-01-29 10:45:34.000000000 -0500
@@ -51,6 +51,7 @@ struct hwmon_device_attribute {
 
 #define to_hwmon_attr(d) \
 	container_of(d, struct hwmon_device_attribute, dev_attr)
+#define to_dev_attr(a) container_of(a, struct device_attribute, attr)
 
 /*
  * Thermal zone information
@@ -58,7 +59,7 @@ struct hwmon_device_attribute {
  * also provides the sensor index.
  */
 struct hwmon_thermal_data {
-	struct hwmon_device *hwdev;	/* Reference to hwmon device */
+	struct device *dev;		/* Reference to hwmon device */
 	int index;			/* sensor index */
 };
 
@@ -95,9 +96,27 @@ static const struct attribute_group *hwm
 	NULL
 };
 
+static void hwmon_free_attrs(struct attribute **attrs)
+{
+	int i;
+
+	for (i = 0; attrs[i]; i++) {
+		struct device_attribute *dattr = to_dev_attr(attrs[i]);
+		struct hwmon_device_attribute *hattr = to_hwmon_attr(dattr);
+
+		kfree(hattr);
+	}
+	kfree(attrs);
+}
+
 static void hwmon_dev_release(struct device *dev)
 {
-	kfree(to_hwmon_device(dev));
+	struct hwmon_device *hwdev = to_hwmon_device(dev);
+
+	if (hwdev->group.attrs)
+		hwmon_free_attrs(hwdev->group.attrs);
+	kfree(hwdev->groups);
+	kfree(hwdev);
 }
 
 static struct class hwmon_class = {
@@ -119,11 +138,11 @@ static DEFINE_IDA(hwmon_ida);
 static int hwmon_thermal_get_temp(void *data, int *temp)
 {
 	struct hwmon_thermal_data *tdata = data;
-	struct hwmon_device *hwdev = tdata->hwdev;
+	struct hwmon_device *hwdev = to_hwmon_device(tdata->dev);
 	int ret;
 	long t;
 
-	ret = hwdev->chip->ops->read(&hwdev->dev, hwmon_temp, hwmon_temp_input,
+	ret = hwdev->chip->ops->read(tdata->dev, hwmon_temp, hwmon_temp_input,
 				     tdata->index, &t);
 	if (ret < 0)
 		return ret;
@@ -137,8 +156,7 @@ static const struct thermal_zone_of_devi
 	.get_temp = hwmon_thermal_get_temp,
 };
 
-static int hwmon_thermal_add_sensor(struct device *dev,
-				    struct hwmon_device *hwdev, int index)
+static int hwmon_thermal_add_sensor(struct device *dev, int index)
 {
 	struct hwmon_thermal_data *tdata;
 	struct thermal_zone_device *tzd;
@@ -147,10 +165,10 @@ static int hwmon_thermal_add_sensor(stru
 	if (!tdata)
 		return -ENOMEM;
 
-	tdata->hwdev = hwdev;
+	tdata->dev = dev;
 	tdata->index = index;
 
-	tzd = devm_thermal_zone_of_sensor_register(&hwdev->dev, index, tdata,
+	tzd = devm_thermal_zone_of_sensor_register(dev, index, tdata,
 						   &hwmon_thermal_ops);
 	/*
 	 * If CONFIG_THERMAL_OF is disabled, this returns -ENODEV,
@@ -162,8 +180,7 @@ static int hwmon_thermal_add_sensor(stru
 	return 0;
 }
 #else
-static int hwmon_thermal_add_sensor(struct device *dev,
-				    struct hwmon_device *hwdev, int index)
+static int hwmon_thermal_add_sensor(struct device *dev, int index)
 {
 	return 0;
 }
@@ -250,8 +267,7 @@ static bool is_string_attr(enum hwmon_se
 	       (type == hwmon_fan && attr == hwmon_fan_label);
 }
 
-static struct attribute *hwmon_genattr(struct device *dev,
-				       const void *drvdata,
+static struct attribute *hwmon_genattr(const void *drvdata,
 				       enum hwmon_sensor_types type,
 				       u32 attr,
 				       int index,
@@ -279,7 +295,7 @@ static struct attribute *hwmon_genattr(s
 	if ((mode & 0222) && !ops->write)
 		return ERR_PTR(-EINVAL);
 
-	hattr = devm_kzalloc(dev, sizeof(*hattr), GFP_KERNEL);
+	hattr = kzalloc(sizeof(*hattr), GFP_KERNEL);
 	if (!hattr)
 		return ERR_PTR(-ENOMEM);
 
@@ -492,8 +508,7 @@ static int hwmon_num_channel_attrs(const
 	return n;
 }
 
-static int hwmon_genattrs(struct device *dev,
-			  const void *drvdata,
+static int hwmon_genattrs(const void *drvdata,
 			  struct attribute **attrs,
 			  const struct hwmon_ops *ops,
 			  const struct hwmon_channel_info *info)
@@ -519,7 +534,7 @@ static int hwmon_genattrs(struct device
 			attr_mask &= ~BIT(attr);
 			if (attr >= template_size)
 				return -EINVAL;
-			a = hwmon_genattr(dev, drvdata, info->type, attr, i,
+			a = hwmon_genattr(drvdata, info->type, attr, i,
 					  templates[attr], ops);
 			if (IS_ERR(a)) {
 				if (PTR_ERR(a) != -ENOENT)
@@ -533,8 +548,7 @@ static int hwmon_genattrs(struct device
 }
 
 static struct attribute **
-__hwmon_create_attrs(struct device *dev, const void *drvdata,
-		     const struct hwmon_chip_info *chip)
+__hwmon_create_attrs(const void *drvdata, const struct hwmon_chip_info *chip)
 {
 	int ret, i, aindex = 0, nattrs = 0;
 	struct attribute **attrs;
@@ -545,15 +559,17 @@ __hwmon_create_attrs(struct device *dev,
 	if (nattrs == 0)
 		return ERR_PTR(-EINVAL);
 
-	attrs = devm_kcalloc(dev, nattrs + 1, sizeof(*attrs), GFP_KERNEL);
+	attrs = kcalloc(nattrs + 1, sizeof(*attrs), GFP_KERNEL);
 	if (!attrs)
 		return ERR_PTR(-ENOMEM);
 
 	for (i = 0; chip->info[i]; i++) {
-		ret = hwmon_genattrs(dev, drvdata, &attrs[aindex], chip->ops,
+		ret = hwmon_genattrs(drvdata, &attrs[aindex], chip->ops,
 				     chip->info[i]);
-		if (ret < 0)
+		if (ret < 0) {
+			hwmon_free_attrs(attrs);
 			return ERR_PTR(ret);
+		}
 		aindex += ret;
 	}
 
@@ -595,14 +611,13 @@ __hwmon_device_register(struct device *d
 			for (i = 0; groups[i]; i++)
 				ngroups++;
 
-		hwdev->groups = devm_kcalloc(dev, ngroups, sizeof(*groups),
-					     GFP_KERNEL);
+		hwdev->groups = kcalloc(ngroups, sizeof(*groups), GFP_KERNEL);
 		if (!hwdev->groups) {
 			err = -ENOMEM;
 			goto free_hwmon;
 		}
 
-		attrs = __hwmon_create_attrs(dev, drvdata, chip);
+		attrs = __hwmon_create_attrs(drvdata, chip);
 		if (IS_ERR(attrs)) {
 			err = PTR_ERR(attrs);
 			goto free_hwmon;
@@ -647,8 +662,7 @@ __hwmon_device_register(struct device *d
 							   hwmon_temp_input, j))
 					continue;
 				if (info[i]->config[j] & HWMON_T_INPUT) {
-					err = hwmon_thermal_add_sensor(dev,
-								hwdev, j);
+					err = hwmon_thermal_add_sensor(hdev, j);
 					if (err) {
 						device_unregister(hdev);
 						/*
@@ -667,7 +681,7 @@ __hwmon_device_register(struct device *d
 	return hdev;
 
 free_hwmon:
-	kfree(hwdev);
+	hwmon_dev_release(hdev);
 ida_remove:
 	ida_simple_remove(&hwmon_ida, id);
 	return ERR_PTR(err);
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/hwmon/nct7802.c linux-libre-5.4.16-gnu/drivers/hwmon/nct7802.c
--- linux-libre-5.4.15-gnu/drivers/hwmon/nct7802.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/hwmon/nct7802.c	2020-01-29 10:45:34.000000000 -0500
@@ -23,8 +23,8 @@
 static const u8 REG_VOLTAGE[5] = { 0x09, 0x0a, 0x0c, 0x0d, 0x0e };
 
 static const u8 REG_VOLTAGE_LIMIT_LSB[2][5] = {
-	{ 0x40, 0x00, 0x42, 0x44, 0x46 },
-	{ 0x3f, 0x00, 0x41, 0x43, 0x45 },
+	{ 0x46, 0x00, 0x40, 0x42, 0x44 },
+	{ 0x45, 0x00, 0x3f, 0x41, 0x43 },
 };
 
 static const u8 REG_VOLTAGE_LIMIT_MSB[5] = { 0x48, 0x00, 0x47, 0x47, 0x48 };
@@ -58,6 +58,8 @@ static const u8 REG_VOLTAGE_LIMIT_MSB_SH
 struct nct7802_data {
 	struct regmap *regmap;
 	struct mutex access_lock; /* for multi-byte read and write operations */
+	u8 in_status;
+	struct mutex in_alarm_lock;
 };
 
 static ssize_t temp_type_show(struct device *dev,
@@ -368,6 +370,66 @@ static ssize_t in_store(struct device *d
 	return err ? : count;
 }
 
+static ssize_t in_alarm_show(struct device *dev, struct device_attribute *attr,
+			     char *buf)
+{
+	struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
+	struct nct7802_data *data = dev_get_drvdata(dev);
+	int volt, min, max, ret;
+	unsigned int val;
+
+	mutex_lock(&data->in_alarm_lock);
+
+	/*
+	 * The SMI Voltage status register is the only register giving a status
+	 * for voltages. A bit is set for each input crossing a threshold, in
+	 * both direction, but the "inside" or "outside" limits info is not
+	 * available. Also this register is cleared on read.
+	 * Note: this is not explicitly spelled out in the datasheet, but
+	 * from experiment.
+	 * To deal with this we use a status cache with one validity bit and
+	 * one status bit for each input. Validity is cleared at startup and
+	 * each time the register reports a change, and the status is processed
+	 * by software based on current input value and limits.
+	 */
+	ret = regmap_read(data->regmap, 0x1e, &val); /* SMI Voltage status */
+	if (ret < 0)
+		goto abort;
+
+	/* invalidate cached status for all inputs crossing a threshold */
+	data->in_status &= ~((val & 0x0f) << 4);
+
+	/* if cached status for requested input is invalid, update it */
+	if (!(data->in_status & (0x10 << sattr->index))) {
+		ret = nct7802_read_voltage(data, sattr->nr, 0);
+		if (ret < 0)
+			goto abort;
+		volt = ret;
+
+		ret = nct7802_read_voltage(data, sattr->nr, 1);
+		if (ret < 0)
+			goto abort;
+		min = ret;
+
+		ret = nct7802_read_voltage(data, sattr->nr, 2);
+		if (ret < 0)
+			goto abort;
+		max = ret;
+
+		if (volt < min || volt > max)
+			data->in_status |= (1 << sattr->index);
+		else
+			data->in_status &= ~(1 << sattr->index);
+
+		data->in_status |= 0x10 << sattr->index;
+	}
+
+	ret = sprintf(buf, "%u\n", !!(data->in_status & (1 << sattr->index)));
+abort:
+	mutex_unlock(&data->in_alarm_lock);
+	return ret;
+}
+
 static ssize_t temp_show(struct device *dev, struct device_attribute *attr,
 			 char *buf)
 {
@@ -660,7 +722,7 @@ static const struct attribute_group nct7
 static SENSOR_DEVICE_ATTR_2_RO(in0_input, in, 0, 0);
 static SENSOR_DEVICE_ATTR_2_RW(in0_min, in, 0, 1);
 static SENSOR_DEVICE_ATTR_2_RW(in0_max, in, 0, 2);
-static SENSOR_DEVICE_ATTR_2_RO(in0_alarm, alarm, 0x1e, 3);
+static SENSOR_DEVICE_ATTR_2_RO(in0_alarm, in_alarm, 0, 3);
 static SENSOR_DEVICE_ATTR_2_RW(in0_beep, beep, 0x5a, 3);
 
 static SENSOR_DEVICE_ATTR_2_RO(in1_input, in, 1, 0);
@@ -668,19 +730,19 @@ static SENSOR_DEVICE_ATTR_2_RO(in1_input
 static SENSOR_DEVICE_ATTR_2_RO(in2_input, in, 2, 0);
 static SENSOR_DEVICE_ATTR_2_RW(in2_min, in, 2, 1);
 static SENSOR_DEVICE_ATTR_2_RW(in2_max, in, 2, 2);
-static SENSOR_DEVICE_ATTR_2_RO(in2_alarm, alarm, 0x1e, 0);
+static SENSOR_DEVICE_ATTR_2_RO(in2_alarm, in_alarm, 2, 0);
 static SENSOR_DEVICE_ATTR_2_RW(in2_beep, beep, 0x5a, 0);
 
 static SENSOR_DEVICE_ATTR_2_RO(in3_input, in, 3, 0);
 static SENSOR_DEVICE_ATTR_2_RW(in3_min, in, 3, 1);
 static SENSOR_DEVICE_ATTR_2_RW(in3_max, in, 3, 2);
-static SENSOR_DEVICE_ATTR_2_RO(in3_alarm, alarm, 0x1e, 1);
+static SENSOR_DEVICE_ATTR_2_RO(in3_alarm, in_alarm, 3, 1);
 static SENSOR_DEVICE_ATTR_2_RW(in3_beep, beep, 0x5a, 1);
 
 static SENSOR_DEVICE_ATTR_2_RO(in4_input, in, 4, 0);
 static SENSOR_DEVICE_ATTR_2_RW(in4_min, in, 4, 1);
 static SENSOR_DEVICE_ATTR_2_RW(in4_max, in, 4, 2);
-static SENSOR_DEVICE_ATTR_2_RO(in4_alarm, alarm, 0x1e, 2);
+static SENSOR_DEVICE_ATTR_2_RO(in4_alarm, in_alarm, 4, 2);
 static SENSOR_DEVICE_ATTR_2_RW(in4_beep, beep, 0x5a, 2);
 
 static struct attribute *nct7802_in_attrs[] = {
@@ -1011,6 +1073,7 @@ static int nct7802_probe(struct i2c_clie
 		return PTR_ERR(data->regmap);
 
 	mutex_init(&data->access_lock);
+	mutex_init(&data->in_alarm_lock);
 
 	ret = nct7802_init_chip(data);
 	if (ret < 0)
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/infiniband/ulp/isert/ib_isert.c linux-libre-5.4.16-gnu/drivers/infiniband/ulp/isert/ib_isert.c
--- linux-libre-5.4.15-gnu/drivers/infiniband/ulp/isert/ib_isert.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/infiniband/ulp/isert/ib_isert.c	2020-01-29 10:45:34.000000000 -0500
@@ -2575,17 +2575,6 @@ isert_wait4logout(struct isert_conn *ise
 	}
 }
 
-static void
-isert_wait4cmds(struct iscsi_conn *conn)
-{
-	isert_info("iscsi_conn %p\n", conn);
-
-	if (conn->sess) {
-		target_sess_cmd_list_set_waiting(conn->sess->se_sess);
-		target_wait_for_sess_cmds(conn->sess->se_sess);
-	}
-}
-
 /**
  * isert_put_unsol_pending_cmds() - Drop commands waiting for
  *     unsolicitate dataout
@@ -2633,7 +2622,6 @@ static void isert_wait_conn(struct iscsi
 
 	ib_drain_qp(isert_conn->qp);
 	isert_put_unsol_pending_cmds(conn);
-	isert_wait4cmds(conn);
 	isert_wait4logout(isert_conn);
 
 	queue_work(isert_release_wq, &isert_conn->release_work);
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/input/misc/keyspan_remote.c linux-libre-5.4.16-gnu/drivers/input/misc/keyspan_remote.c
--- linux-libre-5.4.15-gnu/drivers/input/misc/keyspan_remote.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/input/misc/keyspan_remote.c	2020-01-29 10:45:34.000000000 -0500
@@ -336,7 +336,8 @@ static int keyspan_setup(struct usb_devi
 	int retval = 0;
 
 	retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
-				 0x11, 0x40, 0x5601, 0x0, NULL, 0, 0);
+				 0x11, 0x40, 0x5601, 0x0, NULL, 0,
+				 USB_CTRL_SET_TIMEOUT);
 	if (retval) {
 		dev_dbg(&dev->dev, "%s - failed to set bit rate due to error: %d\n",
 			__func__, retval);
@@ -344,7 +345,8 @@ static int keyspan_setup(struct usb_devi
 	}
 
 	retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
-				 0x44, 0x40, 0x0, 0x0, NULL, 0, 0);
+				 0x44, 0x40, 0x0, 0x0, NULL, 0,
+				 USB_CTRL_SET_TIMEOUT);
 	if (retval) {
 		dev_dbg(&dev->dev, "%s - failed to set resume sensitivity due to error: %d\n",
 			__func__, retval);
@@ -352,7 +354,8 @@ static int keyspan_setup(struct usb_devi
 	}
 
 	retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
-				 0x22, 0x40, 0x0, 0x0, NULL, 0, 0);
+				 0x22, 0x40, 0x0, 0x0, NULL, 0,
+				 USB_CTRL_SET_TIMEOUT);
 	if (retval) {
 		dev_dbg(&dev->dev, "%s - failed to turn receive on due to error: %d\n",
 			__func__, retval);
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/input/misc/pm8xxx-vibrator.c linux-libre-5.4.16-gnu/drivers/input/misc/pm8xxx-vibrator.c
--- linux-libre-5.4.15-gnu/drivers/input/misc/pm8xxx-vibrator.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/input/misc/pm8xxx-vibrator.c	2020-01-29 10:45:34.000000000 -0500
@@ -90,7 +90,7 @@ static int pm8xxx_vib_set(struct pm8xxx_
 
 	if (regs->enable_mask)
 		rc = regmap_update_bits(vib->regmap, regs->enable_addr,
-					on ? regs->enable_mask : 0, val);
+					regs->enable_mask, on ? ~0 : 0);
 
 	return rc;
 }
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/input/rmi4/rmi_smbus.c linux-libre-5.4.16-gnu/drivers/input/rmi4/rmi_smbus.c
--- linux-libre-5.4.15-gnu/drivers/input/rmi4/rmi_smbus.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/input/rmi4/rmi_smbus.c	2020-01-29 10:45:34.000000000 -0500
@@ -163,6 +163,7 @@ static int rmi_smb_write_block(struct rm
 		/* prepare to write next block of bytes */
 		cur_len -= SMB_MAX_COUNT;
 		databuff += SMB_MAX_COUNT;
+		rmiaddr += SMB_MAX_COUNT;
 	}
 exit:
 	mutex_unlock(&rmi_smb->page_mutex);
@@ -214,6 +215,7 @@ static int rmi_smb_read_block(struct rmi
 		/* prepare to read next block of bytes */
 		cur_len -= SMB_MAX_COUNT;
 		databuff += SMB_MAX_COUNT;
+		rmiaddr += SMB_MAX_COUNT;
 	}
 
 	retval = 0;
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/input/tablet/aiptek.c linux-libre-5.4.16-gnu/drivers/input/tablet/aiptek.c
--- linux-libre-5.4.15-gnu/drivers/input/tablet/aiptek.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/input/tablet/aiptek.c	2020-01-29 10:45:34.000000000 -0500
@@ -1802,14 +1802,14 @@ aiptek_probe(struct usb_interface *intf,
 	input_set_abs_params(inputdev, ABS_WHEEL, AIPTEK_WHEEL_MIN, AIPTEK_WHEEL_MAX - 1, 0, 0);
 
 	/* Verify that a device really has an endpoint */
-	if (intf->altsetting[0].desc.bNumEndpoints < 1) {
+	if (intf->cur_altsetting->desc.bNumEndpoints < 1) {
 		dev_err(&intf->dev,
 			"interface has %d endpoints, but must have minimum 1\n",
-			intf->altsetting[0].desc.bNumEndpoints);
+			intf->cur_altsetting->desc.bNumEndpoints);
 		err = -EINVAL;
 		goto fail3;
 	}
-	endpoint = &intf->altsetting[0].endpoint[0].desc;
+	endpoint = &intf->cur_altsetting->endpoint[0].desc;
 
 	/* Go set up our URB, which is called when the tablet receives
 	 * input.
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/input/tablet/gtco.c linux-libre-5.4.16-gnu/drivers/input/tablet/gtco.c
--- linux-libre-5.4.15-gnu/drivers/input/tablet/gtco.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/input/tablet/gtco.c	2020-01-29 10:45:34.000000000 -0500
@@ -875,18 +875,14 @@ static int gtco_probe(struct usb_interfa
 	}
 
 	/* Sanity check that a device has an endpoint */
-	if (usbinterface->altsetting[0].desc.bNumEndpoints < 1) {
+	if (usbinterface->cur_altsetting->desc.bNumEndpoints < 1) {
 		dev_err(&usbinterface->dev,
 			"Invalid number of endpoints\n");
 		error = -EINVAL;
 		goto err_free_urb;
 	}
 
-	/*
-	 * The endpoint is always altsetting 0, we know this since we know
-	 * this device only has one interrupt endpoint
-	 */
-	endpoint = &usbinterface->altsetting[0].endpoint[0].desc;
+	endpoint = &usbinterface->cur_altsetting->endpoint[0].desc;
 
 	/* Some debug */
 	dev_dbg(&usbinterface->dev, "gtco # interfaces: %d\n", usbinterface->num_altsetting);
@@ -973,7 +969,7 @@ static int gtco_probe(struct usb_interfa
 	input_dev->dev.parent = &usbinterface->dev;
 
 	/* Setup the URB, it will be posted later on open of input device */
-	endpoint = &usbinterface->altsetting[0].endpoint[0].desc;
+	endpoint = &usbinterface->cur_altsetting->endpoint[0].desc;
 
 	usb_fill_int_urb(gtco->urbinfo,
 			 udev,
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/input/tablet/pegasus_notetaker.c linux-libre-5.4.16-gnu/drivers/input/tablet/pegasus_notetaker.c
--- linux-libre-5.4.15-gnu/drivers/input/tablet/pegasus_notetaker.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/input/tablet/pegasus_notetaker.c	2020-01-29 10:45:34.000000000 -0500
@@ -275,7 +275,7 @@ static int pegasus_probe(struct usb_inte
 		return -ENODEV;
 
 	/* Sanity check that the device has an endpoint */
-	if (intf->altsetting[0].desc.bNumEndpoints < 1) {
+	if (intf->cur_altsetting->desc.bNumEndpoints < 1) {
 		dev_err(&intf->dev, "Invalid number of endpoints\n");
 		return -EINVAL;
 	}
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/input/touchscreen/sun4i-ts.c linux-libre-5.4.16-gnu/drivers/input/touchscreen/sun4i-ts.c
--- linux-libre-5.4.15-gnu/drivers/input/touchscreen/sun4i-ts.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/input/touchscreen/sun4i-ts.c	2020-01-29 10:45:34.000000000 -0500
@@ -237,6 +237,7 @@ static int sun4i_ts_probe(struct platfor
 	struct device *dev = &pdev->dev;
 	struct device_node *np = dev->of_node;
 	struct device *hwmon;
+	struct thermal_zone_device *thermal;
 	int error;
 	u32 reg;
 	bool ts_attached;
@@ -355,7 +356,10 @@ static int sun4i_ts_probe(struct platfor
 	if (IS_ERR(hwmon))
 		return PTR_ERR(hwmon);
 
-	devm_thermal_zone_of_sensor_register(ts->dev, 0, ts, &sun4i_ts_tz_ops);
+	thermal = devm_thermal_zone_of_sensor_register(ts->dev, 0, ts,
+						       &sun4i_ts_tz_ops);
+	if (IS_ERR(thermal))
+		return PTR_ERR(thermal);
 
 	writel(TEMP_IRQ_EN(1), ts->base + TP_INT_FIFOC);
 
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/input/touchscreen/sur40.c linux-libre-5.4.16-gnu/drivers/input/touchscreen/sur40.c
--- linux-libre-5.4.15-gnu/drivers/input/touchscreen/sur40.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/input/touchscreen/sur40.c	2020-01-29 10:45:34.000000000 -0500
@@ -653,7 +653,7 @@ static int sur40_probe(struct usb_interf
 	int error;
 
 	/* Check if we really have the right interface. */
-	iface_desc = &interface->altsetting[0];
+	iface_desc = interface->cur_altsetting;
 	if (iface_desc->desc.bInterfaceClass != 0xFF)
 		return -ENODEV;
 
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/iommu/amd_iommu_init.c linux-libre-5.4.16-gnu/drivers/iommu/amd_iommu_init.c
--- linux-libre-5.4.15-gnu/drivers/iommu/amd_iommu_init.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/iommu/amd_iommu_init.c	2020-01-29 10:45:34.000000000 -0500
@@ -1655,27 +1655,39 @@ static int iommu_pc_get_set_reg(struct a
 static void init_iommu_perf_ctr(struct amd_iommu *iommu)
 {
 	struct pci_dev *pdev = iommu->dev;
-	u64 val = 0xabcd, val2 = 0;
+	u64 val = 0xabcd, val2 = 0, save_reg = 0;
 
 	if (!iommu_feature(iommu, FEATURE_PC))
 		return;
 
 	amd_iommu_pc_present = true;
 
+	/* save the value to restore, if writable */
+	if (iommu_pc_get_set_reg(iommu, 0, 0, 0, &save_reg, false))
+		goto pc_false;
+
 	/* Check if the performance counters can be written to */
 	if ((iommu_pc_get_set_reg(iommu, 0, 0, 0, &val, true)) ||
 	    (iommu_pc_get_set_reg(iommu, 0, 0, 0, &val2, false)) ||
-	    (val != val2)) {
-		pci_err(pdev, "Unable to write to IOMMU perf counter.\n");
-		amd_iommu_pc_present = false;
-		return;
-	}
+	    (val != val2))
+		goto pc_false;
+
+	/* restore */
+	if (iommu_pc_get_set_reg(iommu, 0, 0, 0, &save_reg, true))
+		goto pc_false;
 
 	pci_info(pdev, "IOMMU performance counters supported\n");
 
 	val = readl(iommu->mmio_base + MMIO_CNTR_CONF_OFFSET);
 	iommu->max_banks = (u8) ((val >> 12) & 0x3f);
 	iommu->max_counters = (u8) ((val >> 7) & 0xf);
+
+	return;
+
+pc_false:
+	pci_err(pdev, "Unable to read/write to IOMMU perf counter.\n");
+	amd_iommu_pc_present = false;
+	return;
 }
 
 static ssize_t amd_iommu_show_cap(struct device *dev,
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/iommu/intel-iommu.c linux-libre-5.4.16-gnu/drivers/iommu/intel-iommu.c
--- linux-libre-5.4.15-gnu/drivers/iommu/intel-iommu.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/iommu/intel-iommu.c	2020-01-29 10:45:34.000000000 -0500
@@ -5132,7 +5132,8 @@ static void dmar_remove_one_dev_info(str
 
 	spin_lock_irqsave(&device_domain_lock, flags);
 	info = dev->archdata.iommu;
-	if (info)
+	if (info && info != DEFER_DEVICE_DOMAIN_INFO
+	    && info != DUMMY_DEVICE_DOMAIN_INFO)
 		__dmar_remove_one_dev_info(info);
 	spin_unlock_irqrestore(&device_domain_lock, flags);
 }
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/leds/leds-gpio.c linux-libre-5.4.16-gnu/drivers/leds/leds-gpio.c
--- linux-libre-5.4.15-gnu/drivers/leds/leds-gpio.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/leds/leds-gpio.c	2020-01-29 10:45:34.000000000 -0500
@@ -151,9 +151,14 @@ static struct gpio_leds_priv *gpio_leds_
 		struct gpio_led led = {};
 		const char *state = NULL;
 
+		/*
+		 * Acquire gpiod from DT with uninitialized label, which
+		 * will be updated after LED class device is registered,
+		 * Only then the final LED name is known.
+		 */
 		led.gpiod = devm_fwnode_get_gpiod_from_child(dev, NULL, child,
 							     GPIOD_ASIS,
-							     led.name);
+							     NULL);
 		if (IS_ERR(led.gpiod)) {
 			fwnode_handle_put(child);
 			return ERR_CAST(led.gpiod);
@@ -186,6 +191,9 @@ static struct gpio_leds_priv *gpio_leds_
 			fwnode_handle_put(child);
 			return ERR_PTR(ret);
 		}
+		/* Set gpiod label to match the corresponding LED name. */
+		gpiod_set_consumer_name(led_dat->gpiod,
+					led_dat->cdev.dev->kobj.name);
 		priv->num_leds++;
 	}
 
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/media/v4l2-core/v4l2-ioctl.c linux-libre-5.4.16-gnu/drivers/media/v4l2-core/v4l2-ioctl.c
--- linux-libre-5.4.15-gnu/drivers/media/v4l2-core/v4l2-ioctl.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/media/v4l2-core/v4l2-ioctl.c	2020-01-29 10:45:34.000000000 -0500
@@ -1605,12 +1605,12 @@ static int v4l_s_fmt(const struct v4l2_i
 	case V4L2_BUF_TYPE_VBI_CAPTURE:
 		if (unlikely(!ops->vidioc_s_fmt_vbi_cap))
 			break;
-		CLEAR_AFTER_FIELD(p, fmt.vbi);
+		CLEAR_AFTER_FIELD(p, fmt.vbi.flags);
 		return ops->vidioc_s_fmt_vbi_cap(file, fh, arg);
 	case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
 		if (unlikely(!ops->vidioc_s_fmt_sliced_vbi_cap))
 			break;
-		CLEAR_AFTER_FIELD(p, fmt.sliced);
+		CLEAR_AFTER_FIELD(p, fmt.sliced.io_size);
 		return ops->vidioc_s_fmt_sliced_vbi_cap(file, fh, arg);
 	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
 		if (unlikely(!ops->vidioc_s_fmt_vid_out))
@@ -1636,22 +1636,22 @@ static int v4l_s_fmt(const struct v4l2_i
 	case V4L2_BUF_TYPE_VBI_OUTPUT:
 		if (unlikely(!ops->vidioc_s_fmt_vbi_out))
 			break;
-		CLEAR_AFTER_FIELD(p, fmt.vbi);
+		CLEAR_AFTER_FIELD(p, fmt.vbi.flags);
 		return ops->vidioc_s_fmt_vbi_out(file, fh, arg);
 	case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
 		if (unlikely(!ops->vidioc_s_fmt_sliced_vbi_out))
 			break;
-		CLEAR_AFTER_FIELD(p, fmt.sliced);
+		CLEAR_AFTER_FIELD(p, fmt.sliced.io_size);
 		return ops->vidioc_s_fmt_sliced_vbi_out(file, fh, arg);
 	case V4L2_BUF_TYPE_SDR_CAPTURE:
 		if (unlikely(!ops->vidioc_s_fmt_sdr_cap))
 			break;
-		CLEAR_AFTER_FIELD(p, fmt.sdr);
+		CLEAR_AFTER_FIELD(p, fmt.sdr.buffersize);
 		return ops->vidioc_s_fmt_sdr_cap(file, fh, arg);
 	case V4L2_BUF_TYPE_SDR_OUTPUT:
 		if (unlikely(!ops->vidioc_s_fmt_sdr_out))
 			break;
-		CLEAR_AFTER_FIELD(p, fmt.sdr);
+		CLEAR_AFTER_FIELD(p, fmt.sdr.buffersize);
 		return ops->vidioc_s_fmt_sdr_out(file, fh, arg);
 	case V4L2_BUF_TYPE_META_CAPTURE:
 		if (unlikely(!ops->vidioc_s_fmt_meta_cap))
@@ -1707,12 +1707,12 @@ static int v4l_try_fmt(const struct v4l2
 	case V4L2_BUF_TYPE_VBI_CAPTURE:
 		if (unlikely(!ops->vidioc_try_fmt_vbi_cap))
 			break;
-		CLEAR_AFTER_FIELD(p, fmt.vbi);
+		CLEAR_AFTER_FIELD(p, fmt.vbi.flags);
 		return ops->vidioc_try_fmt_vbi_cap(file, fh, arg);
 	case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
 		if (unlikely(!ops->vidioc_try_fmt_sliced_vbi_cap))
 			break;
-		CLEAR_AFTER_FIELD(p, fmt.sliced);
+		CLEAR_AFTER_FIELD(p, fmt.sliced.io_size);
 		return ops->vidioc_try_fmt_sliced_vbi_cap(file, fh, arg);
 	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
 		if (unlikely(!ops->vidioc_try_fmt_vid_out))
@@ -1738,22 +1738,22 @@ static int v4l_try_fmt(const struct v4l2
 	case V4L2_BUF_TYPE_VBI_OUTPUT:
 		if (unlikely(!ops->vidioc_try_fmt_vbi_out))
 			break;
-		CLEAR_AFTER_FIELD(p, fmt.vbi);
+		CLEAR_AFTER_FIELD(p, fmt.vbi.flags);
 		return ops->vidioc_try_fmt_vbi_out(file, fh, arg);
 	case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
 		if (unlikely(!ops->vidioc_try_fmt_sliced_vbi_out))
 			break;
-		CLEAR_AFTER_FIELD(p, fmt.sliced);
+		CLEAR_AFTER_FIELD(p, fmt.sliced.io_size);
 		return ops->vidioc_try_fmt_sliced_vbi_out(file, fh, arg);
 	case V4L2_BUF_TYPE_SDR_CAPTURE:
 		if (unlikely(!ops->vidioc_try_fmt_sdr_cap))
 			break;
-		CLEAR_AFTER_FIELD(p, fmt.sdr);
+		CLEAR_AFTER_FIELD(p, fmt.sdr.buffersize);
 		return ops->vidioc_try_fmt_sdr_cap(file, fh, arg);
 	case V4L2_BUF_TYPE_SDR_OUTPUT:
 		if (unlikely(!ops->vidioc_try_fmt_sdr_out))
 			break;
-		CLEAR_AFTER_FIELD(p, fmt.sdr);
+		CLEAR_AFTER_FIELD(p, fmt.sdr.buffersize);
 		return ops->vidioc_try_fmt_sdr_out(file, fh, arg);
 	case V4L2_BUF_TYPE_META_CAPTURE:
 		if (unlikely(!ops->vidioc_try_fmt_meta_cap))
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/mmc/host/sdhci_am654.c linux-libre-5.4.16-gnu/drivers/mmc/host/sdhci_am654.c
--- linux-libre-5.4.15-gnu/drivers/mmc/host/sdhci_am654.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/mmc/host/sdhci_am654.c	2020-01-29 10:45:34.000000000 -0500
@@ -236,6 +236,22 @@ static void sdhci_am654_write_b(struct s
 	writeb(val, host->ioaddr + reg);
 }
 
+static int sdhci_am654_execute_tuning(struct mmc_host *mmc, u32 opcode)
+{
+	struct sdhci_host *host = mmc_priv(mmc);
+	int err = sdhci_execute_tuning(mmc, opcode);
+
+	if (err)
+		return err;
+	/*
+	 * Tuning data remains in the buffer after tuning.
+	 * Do a command and data reset to get rid of it
+	 */
+	sdhci_reset(host, SDHCI_RESET_CMD | SDHCI_RESET_DATA);
+
+	return 0;
+}
+
 static struct sdhci_ops sdhci_am654_ops = {
 	.get_max_clock = sdhci_pltfm_clk_get_max_clock,
 	.get_timeout_clock = sdhci_pltfm_clk_get_max_clock,
@@ -249,8 +265,7 @@ static struct sdhci_ops sdhci_am654_ops
 
 static const struct sdhci_pltfm_data sdhci_am654_pdata = {
 	.ops = &sdhci_am654_ops,
-	.quirks = SDHCI_QUIRK_INVERTED_WRITE_PROTECT |
-		  SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12,
+	.quirks = SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12,
 	.quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
 };
 
@@ -272,8 +287,7 @@ static struct sdhci_ops sdhci_j721e_8bit
 
 static const struct sdhci_pltfm_data sdhci_j721e_8bit_pdata = {
 	.ops = &sdhci_j721e_8bit_ops,
-	.quirks = SDHCI_QUIRK_INVERTED_WRITE_PROTECT |
-		  SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12,
+	.quirks = SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12,
 	.quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
 };
 
@@ -295,8 +309,7 @@ static struct sdhci_ops sdhci_j721e_4bit
 
 static const struct sdhci_pltfm_data sdhci_j721e_4bit_pdata = {
 	.ops = &sdhci_j721e_4bit_ops,
-	.quirks = SDHCI_QUIRK_INVERTED_WRITE_PROTECT |
-		  SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12,
+	.quirks = SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12,
 	.quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
 };
 
@@ -480,6 +493,8 @@ static int sdhci_am654_probe(struct plat
 		goto pm_runtime_put;
 	}
 
+	host->mmc_host_ops.execute_tuning = sdhci_am654_execute_tuning;
+
 	ret = sdhci_am654_init(host);
 	if (ret)
 		goto pm_runtime_put;
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/mmc/host/sdhci.c linux-libre-5.4.16-gnu/drivers/mmc/host/sdhci.c
--- linux-libre-5.4.15-gnu/drivers/mmc/host/sdhci.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/mmc/host/sdhci.c	2020-01-29 10:45:34.000000000 -0500
@@ -3902,11 +3902,13 @@ int sdhci_setup_host(struct sdhci_host *
 	if (host->ops->get_min_clock)
 		mmc->f_min = host->ops->get_min_clock(host);
 	else if (host->version >= SDHCI_SPEC_300) {
-		if (host->clk_mul) {
-			mmc->f_min = (host->max_clk * host->clk_mul) / 1024;
+		if (host->clk_mul)
 			max_clk = host->max_clk * host->clk_mul;
-		} else
-			mmc->f_min = host->max_clk / SDHCI_MAX_DIV_SPEC_300;
+		/*
+		 * Divided Clock Mode minimum clock rate is always less than
+		 * Programmable Clock Mode minimum clock rate.
+		 */
+		mmc->f_min = host->max_clk / SDHCI_MAX_DIV_SPEC_300;
 	} else
 		mmc->f_min = host->max_clk / SDHCI_MAX_DIV_SPEC_200;
 
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/mmc/host/sdhci-tegra.c linux-libre-5.4.16-gnu/drivers/mmc/host/sdhci-tegra.c
--- linux-libre-5.4.15-gnu/drivers/mmc/host/sdhci-tegra.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/mmc/host/sdhci-tegra.c	2020-01-29 10:45:34.000000000 -0500
@@ -386,7 +386,7 @@ static void tegra_sdhci_reset(struct sdh
 			misc_ctrl |= SDHCI_MISC_CTRL_ENABLE_DDR50;
 		if (soc_data->nvquirks & NVQUIRK_ENABLE_SDR104)
 			misc_ctrl |= SDHCI_MISC_CTRL_ENABLE_SDR104;
-		if (soc_data->nvquirks & SDHCI_MISC_CTRL_ENABLE_SDR50)
+		if (soc_data->nvquirks & NVQUIRK_ENABLE_SDR50)
 			clk_ctrl |= SDHCI_CLOCK_CTRL_SDR50_TUNING_OVERRIDE;
 	}
 
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/net/can/slcan.c linux-libre-5.4.16-gnu/drivers/net/can/slcan.c
--- linux-libre-5.4.15-gnu/drivers/net/can/slcan.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/net/can/slcan.c	2020-01-29 10:45:34.000000000 -0500
@@ -344,9 +344,16 @@ static void slcan_transmit(struct work_s
  */
 static void slcan_write_wakeup(struct tty_struct *tty)
 {
-	struct slcan *sl = tty->disc_data;
+	struct slcan *sl;
+
+	rcu_read_lock();
+	sl = rcu_dereference(tty->disc_data);
+	if (!sl)
+		goto out;
 
 	schedule_work(&sl->tx_work);
+out:
+	rcu_read_unlock();
 }
 
 /* Send a can_frame to a TTY queue. */
@@ -644,10 +651,11 @@ static void slcan_close(struct tty_struc
 		return;
 
 	spin_lock_bh(&sl->lock);
-	tty->disc_data = NULL;
+	rcu_assign_pointer(tty->disc_data, NULL);
 	sl->tty = NULL;
 	spin_unlock_bh(&sl->lock);
 
+	synchronize_rcu();
 	flush_work(&sl->tx_work);
 
 	/* Flush network side */
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/net/ethernet/broadcom/genet/bcmgenet.c linux-libre-5.4.16-gnu/drivers/net/ethernet/broadcom/genet/bcmgenet.c
--- linux-libre-5.4.15-gnu/drivers/net/ethernet/broadcom/genet/bcmgenet.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/net/ethernet/broadcom/genet/bcmgenet.c	2020-01-29 10:45:34.000000000 -0500
@@ -2164,8 +2164,8 @@ static void bcmgenet_init_tx_ring(struct
 				  DMA_END_ADDR);
 
 	/* Initialize Tx NAPI */
-	netif_napi_add(priv->dev, &ring->napi, bcmgenet_tx_poll,
-		       NAPI_POLL_WEIGHT);
+	netif_tx_napi_add(priv->dev, &ring->napi, bcmgenet_tx_poll,
+			  NAPI_POLL_WEIGHT);
 }
 
 /* Initialize a RDMA ring */
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c linux-libre-5.4.16-gnu/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c
--- linux-libre-5.4.15-gnu/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c	2020-01-26 05:35:03.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c	2020-01-29 12:04:09.000000000 -0500
@@ -2441,6 +2441,8 @@ static int cxgb_extension_ioctl(struct n
 
 		if (!is_offload(adapter))
 			return -EOPNOTSUPP;
+		if (!capable(CAP_NET_ADMIN))
+			return -EPERM;
 		if (!(adapter->flags & FULL_INIT_DONE))
 			return -EIO;	/* need the memory controllers */
 		if (copy_from_user(&t, useraddr, sizeof(t)))
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c linux-libre-5.4.16-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c
--- linux-libre-5.4.15-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c	2020-01-29 10:45:34.000000000 -0500
@@ -180,7 +180,7 @@ mlx5e_ktls_tx_post_param_wqes(struct mlx
 
 struct tx_sync_info {
 	u64 rcd_sn;
-	s32 sync_len;
+	u32 sync_len;
 	int nr_frags;
 	skb_frag_t frags[MAX_SKB_FRAGS];
 };
@@ -193,13 +193,14 @@ enum mlx5e_ktls_sync_retval {
 
 static enum mlx5e_ktls_sync_retval
 tx_sync_info_get(struct mlx5e_ktls_offload_context_tx *priv_tx,
-		 u32 tcp_seq, struct tx_sync_info *info)
+		 u32 tcp_seq, int datalen, struct tx_sync_info *info)
 {
 	struct tls_offload_context_tx *tx_ctx = priv_tx->tx_ctx;
 	enum mlx5e_ktls_sync_retval ret = MLX5E_KTLS_SYNC_DONE;
 	struct tls_record_info *record;
 	int remaining, i = 0;
 	unsigned long flags;
+	bool ends_before;
 
 	spin_lock_irqsave(&tx_ctx->lock, flags);
 	record = tls_get_record(tx_ctx, tcp_seq, &info->rcd_sn);
@@ -209,9 +210,21 @@ tx_sync_info_get(struct mlx5e_ktls_offlo
 		goto out;
 	}
 
-	if (unlikely(tcp_seq < tls_record_start_seq(record))) {
-		ret = tls_record_is_start_marker(record) ?
-			MLX5E_KTLS_SYNC_SKIP_NO_DATA : MLX5E_KTLS_SYNC_FAIL;
+	/* There are the following cases:
+	 * 1. packet ends before start marker: bypass offload.
+	 * 2. packet starts before start marker and ends after it: drop,
+	 *    not supported, breaks contract with kernel.
+	 * 3. packet ends before tls record info starts: drop,
+	 *    this packet was already acknowledged and its record info
+	 *    was released.
+	 */
+	ends_before = before(tcp_seq + datalen, tls_record_start_seq(record));
+
+	if (unlikely(tls_record_is_start_marker(record))) {
+		ret = ends_before ? MLX5E_KTLS_SYNC_SKIP_NO_DATA : MLX5E_KTLS_SYNC_FAIL;
+		goto out;
+	} else if (ends_before) {
+		ret = MLX5E_KTLS_SYNC_FAIL;
 		goto out;
 	}
 
@@ -337,7 +350,7 @@ mlx5e_ktls_tx_handle_ooo(struct mlx5e_kt
 	u8 num_wqebbs;
 	int i = 0;
 
-	ret = tx_sync_info_get(priv_tx, seq, &info);
+	ret = tx_sync_info_get(priv_tx, seq, datalen, &info);
 	if (unlikely(ret != MLX5E_KTLS_SYNC_DONE)) {
 		if (ret == MLX5E_KTLS_SYNC_SKIP_NO_DATA) {
 			stats->tls_skip_no_sync_data++;
@@ -351,14 +364,6 @@ mlx5e_ktls_tx_handle_ooo(struct mlx5e_kt
 		goto err_out;
 	}
 
-	if (unlikely(info.sync_len < 0)) {
-		if (likely(datalen <= -info.sync_len))
-			return MLX5E_KTLS_SYNC_DONE;
-
-		stats->tls_drop_bypass_req++;
-		goto err_out;
-	}
-
 	stats->tls_ooo++;
 
 	tx_post_resync_params(sq, priv_tx, info.rcd_sn);
@@ -378,8 +383,6 @@ mlx5e_ktls_tx_handle_ooo(struct mlx5e_kt
 	if (unlikely(contig_wqebbs_room < num_wqebbs))
 		mlx5e_fill_sq_frag_edge(sq, wq, pi, contig_wqebbs_room);
 
-	tx_post_resync_params(sq, priv_tx, info.rcd_sn);
-
 	for (; i < info.nr_frags; i++) {
 		unsigned int orig_fsz, frag_offset = 0, n = 0;
 		skb_frag_t *f = &info.frags[i];
@@ -455,12 +458,18 @@ struct sk_buff *mlx5e_ktls_handle_tx_skb
 		enum mlx5e_ktls_sync_retval ret =
 			mlx5e_ktls_tx_handle_ooo(priv_tx, sq, datalen, seq);
 
-		if (likely(ret == MLX5E_KTLS_SYNC_DONE))
+		switch (ret) {
+		case MLX5E_KTLS_SYNC_DONE:
 			*wqe = mlx5e_sq_fetch_wqe(sq, sizeof(**wqe), pi);
-		else if (ret == MLX5E_KTLS_SYNC_FAIL)
+			break;
+		case MLX5E_KTLS_SYNC_SKIP_NO_DATA:
+			if (likely(!skb->decrypted))
+				goto out;
+			WARN_ON_ONCE(1);
+			/* fall-through */
+		default: /* MLX5E_KTLS_SYNC_FAIL */
 			goto err_out;
-		else /* ret == MLX5E_KTLS_SYNC_SKIP_NO_DATA */
-			goto out;
+		}
 	}
 
 	priv_tx->expected_seq = seq + datalen;
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c linux-libre-5.4.16-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
--- linux-libre-5.4.15-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c	2020-01-29 10:45:34.000000000 -0500
@@ -3951,6 +3951,13 @@ static int apply_police_params(struct ml
 	u32 rate_mbps;
 	int err;
 
+	vport_num = rpriv->rep->vport;
+	if (vport_num >= MLX5_VPORT_ECPF) {
+		NL_SET_ERR_MSG_MOD(extack,
+				   "Ingress rate limit is supported only for Eswitch ports connected to VFs");
+		return -EOPNOTSUPP;
+	}
+
 	esw = priv->mdev->priv.eswitch;
 	/* rate is given in bytes/sec.
 	 * First convert to bits/sec and then round to the nearest mbit/secs.
@@ -3959,8 +3966,6 @@ static int apply_police_params(struct ml
 	 * 1 mbit/sec.
 	 */
 	rate_mbps = rate ? max_t(u32, (rate * 8 + 500000) / 1000000, 1) : 0;
-	vport_num = rpriv->rep->vport;
-
 	err = mlx5_esw_modify_vport_rate(esw, vport_num, rate_mbps);
 	if (err)
 		NL_SET_ERR_MSG_MOD(extack, "failed applying action to hardware");
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c linux-libre-5.4.16-gnu/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
--- linux-libre-5.4.15-gnu/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c	2020-01-29 10:45:34.000000000 -0500
@@ -858,7 +858,7 @@ out:
  */
 #define ESW_SIZE (16 * 1024 * 1024)
 const unsigned int ESW_POOLS[4] = { 4 * 1024 * 1024, 1 * 1024 * 1024,
-				    64 * 1024, 4 * 1024 };
+				    64 * 1024, 128 };
 
 static int
 get_sz_from_pool(struct mlx5_eswitch *esw)
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/net/ethernet/mellanox/mlx5/core/main.c linux-libre-5.4.16-gnu/drivers/net/ethernet/mellanox/mlx5/core/main.c
--- linux-libre-5.4.15-gnu/drivers/net/ethernet/mellanox/mlx5/core/main.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/net/ethernet/mellanox/mlx5/core/main.c	2020-01-29 10:45:34.000000000 -0500
@@ -1569,6 +1569,7 @@ static const struct pci_device_id mlx5_c
 	{ PCI_VDEVICE(MELLANOX, 0x101d) },			/* ConnectX-6 Dx */
 	{ PCI_VDEVICE(MELLANOX, 0x101e), MLX5_PCI_DEV_IS_VF},	/* ConnectX Family mlx5Gen Virtual Function */
 	{ PCI_VDEVICE(MELLANOX, 0x101f) },			/* ConnectX-6 LX */
+	{ PCI_VDEVICE(MELLANOX, 0x1021) },			/* ConnectX-7 */
 	{ PCI_VDEVICE(MELLANOX, 0xa2d2) },			/* BlueField integrated ConnectX-5 network controller */
 	{ PCI_VDEVICE(MELLANOX, 0xa2d3), MLX5_PCI_DEV_IS_VF},	/* BlueField integrated ConnectX-5 network controller VF */
 	{ PCI_VDEVICE(MELLANOX, 0xa2d6) },			/* BlueField-2 integrated ConnectX-6 Dx network controller */
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_send.c linux-libre-5.4.16-gnu/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_send.c
--- linux-libre-5.4.15-gnu/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_send.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_send.c	2020-01-29 10:45:34.000000000 -0500
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
 /* Copyright (c) 2019 Mellanox Technologies. */
 
+#include <linux/smp.h>
 #include "dr_types.h"
 
 #define QUEUE_SIZE 128
@@ -729,7 +730,7 @@ static struct mlx5dr_cq *dr_create_cq(st
 	if (!in)
 		goto err_cqwq;
 
-	vector = smp_processor_id() % mlx5_comp_vectors_count(mdev);
+	vector = raw_smp_processor_id() % mlx5_comp_vectors_count(mdev);
 	err = mlx5_vector2eqn(mdev, vector, &eqn, &irqn);
 	if (err) {
 		kvfree(in);
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/net/ethernet/mellanox/mlx5/core/steering/fs_dr.c linux-libre-5.4.16-gnu/drivers/net/ethernet/mellanox/mlx5/core/steering/fs_dr.c
--- linux-libre-5.4.15-gnu/drivers/net/ethernet/mellanox/mlx5/core/steering/fs_dr.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/net/ethernet/mellanox/mlx5/core/steering/fs_dr.c	2020-01-29 10:45:34.000000000 -0500
@@ -352,26 +352,16 @@ static int mlx5_cmd_dr_create_fte(struct
 	if (fte->action.action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) {
 		list_for_each_entry(dst, &fte->node.children, node.list) {
 			enum mlx5_flow_destination_type type = dst->dest_attr.type;
-			u32 id;
 
 			if (num_actions == MLX5_FLOW_CONTEXT_ACTION_MAX) {
 				err = -ENOSPC;
 				goto free_actions;
 			}
 
-			switch (type) {
-			case MLX5_FLOW_DESTINATION_TYPE_COUNTER:
-				id = dst->dest_attr.counter_id;
+			if (type == MLX5_FLOW_DESTINATION_TYPE_COUNTER)
+				continue;
 
-				tmp_action =
-					mlx5dr_action_create_flow_counter(id);
-				if (!tmp_action) {
-					err = -ENOMEM;
-					goto free_actions;
-				}
-				fs_dr_actions[fs_dr_num_actions++] = tmp_action;
-				actions[num_actions++] = tmp_action;
-				break;
+			switch (type) {
 			case MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE:
 				tmp_action = create_ft_action(dev, dst);
 				if (!tmp_action) {
@@ -397,6 +387,32 @@ static int mlx5_cmd_dr_create_fte(struct
 		}
 	}
 
+	if (fte->action.action & MLX5_FLOW_CONTEXT_ACTION_COUNT) {
+		list_for_each_entry(dst, &fte->node.children, node.list) {
+			u32 id;
+
+			if (dst->dest_attr.type !=
+			    MLX5_FLOW_DESTINATION_TYPE_COUNTER)
+				continue;
+
+			if (num_actions == MLX5_FLOW_CONTEXT_ACTION_MAX) {
+				err = -ENOSPC;
+				goto free_actions;
+			}
+
+			id = dst->dest_attr.counter_id;
+			tmp_action =
+				mlx5dr_action_create_flow_counter(id);
+			if (!tmp_action) {
+				err = -ENOMEM;
+				goto free_actions;
+			}
+
+			fs_dr_actions[fs_dr_num_actions++] = tmp_action;
+			actions[num_actions++] = tmp_action;
+		}
+	}
+
 	params.match_sz = match_sz;
 	params.match_buf = (u64 *)fte->val;
 
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c linux-libre-5.4.16-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c
--- linux-libre-5.4.15-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c	2020-01-29 10:45:34.000000000 -0500
@@ -8,6 +8,7 @@
 #include <linux/string.h>
 #include <linux/rhashtable.h>
 #include <linux/netdevice.h>
+#include <linux/mutex.h>
 #include <net/net_namespace.h>
 #include <net/tc_act/tc_vlan.h>
 
@@ -25,6 +26,7 @@ struct mlxsw_sp_acl {
 	struct mlxsw_sp_fid *dummy_fid;
 	struct rhashtable ruleset_ht;
 	struct list_head rules;
+	struct mutex rules_lock; /* Protects rules list */
 	struct {
 		struct delayed_work dw;
 		unsigned long interval;	/* ms */
@@ -701,7 +703,9 @@ int mlxsw_sp_acl_rule_add(struct mlxsw_s
 			goto err_ruleset_block_bind;
 	}
 
+	mutex_lock(&mlxsw_sp->acl->rules_lock);
 	list_add_tail(&rule->list, &mlxsw_sp->acl->rules);
+	mutex_unlock(&mlxsw_sp->acl->rules_lock);
 	block->rule_count++;
 	block->egress_blocker_rule_count += rule->rulei->egress_bind_blocker;
 	return 0;
@@ -723,7 +727,9 @@ void mlxsw_sp_acl_rule_del(struct mlxsw_
 
 	block->egress_blocker_rule_count -= rule->rulei->egress_bind_blocker;
 	ruleset->ht_key.block->rule_count--;
+	mutex_lock(&mlxsw_sp->acl->rules_lock);
 	list_del(&rule->list);
+	mutex_unlock(&mlxsw_sp->acl->rules_lock);
 	if (!ruleset->ht_key.chain_index &&
 	    mlxsw_sp_acl_ruleset_is_singular(ruleset))
 		mlxsw_sp_acl_ruleset_block_unbind(mlxsw_sp, ruleset,
@@ -783,19 +789,18 @@ static int mlxsw_sp_acl_rules_activity_u
 	struct mlxsw_sp_acl_rule *rule;
 	int err;
 
-	/* Protect internal structures from changes */
-	rtnl_lock();
+	mutex_lock(&acl->rules_lock);
 	list_for_each_entry(rule, &acl->rules, list) {
 		err = mlxsw_sp_acl_rule_activity_update(acl->mlxsw_sp,
 							rule);
 		if (err)
 			goto err_rule_update;
 	}
-	rtnl_unlock();
+	mutex_unlock(&acl->rules_lock);
 	return 0;
 
 err_rule_update:
-	rtnl_unlock();
+	mutex_unlock(&acl->rules_lock);
 	return err;
 }
 
@@ -880,6 +885,7 @@ int mlxsw_sp_acl_init(struct mlxsw_sp *m
 	acl->dummy_fid = fid;
 
 	INIT_LIST_HEAD(&acl->rules);
+	mutex_init(&acl->rules_lock);
 	err = mlxsw_sp_acl_tcam_init(mlxsw_sp, &acl->tcam);
 	if (err)
 		goto err_acl_ops_init;
@@ -892,6 +898,7 @@ int mlxsw_sp_acl_init(struct mlxsw_sp *m
 	return 0;
 
 err_acl_ops_init:
+	mutex_destroy(&acl->rules_lock);
 	mlxsw_sp_fid_put(fid);
 err_fid_get:
 	rhashtable_destroy(&acl->ruleset_ht);
@@ -908,6 +915,7 @@ void mlxsw_sp_acl_fini(struct mlxsw_sp *
 
 	cancel_delayed_work_sync(&mlxsw_sp->acl->rule_activity_update.dw);
 	mlxsw_sp_acl_tcam_fini(mlxsw_sp, &acl->tcam);
+	mutex_destroy(&acl->rules_lock);
 	WARN_ON(!list_empty(&acl->rules));
 	mlxsw_sp_fid_put(acl->dummy_fid);
 	rhashtable_destroy(&acl->ruleset_ht);
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/net/ethernet/mellanox/mlxsw/switchx2.c linux-libre-5.4.16-gnu/drivers/net/ethernet/mellanox/mlxsw/switchx2.c
--- linux-libre-5.4.15-gnu/drivers/net/ethernet/mellanox/mlxsw/switchx2.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/net/ethernet/mellanox/mlxsw/switchx2.c	2020-01-29 10:45:34.000000000 -0500
@@ -299,22 +299,17 @@ static netdev_tx_t mlxsw_sx_port_xmit(st
 	u64 len;
 	int err;
 
+	if (skb_cow_head(skb, MLXSW_TXHDR_LEN)) {
+		this_cpu_inc(mlxsw_sx_port->pcpu_stats->tx_dropped);
+		dev_kfree_skb_any(skb);
+		return NETDEV_TX_OK;
+	}
+
 	memset(skb->cb, 0, sizeof(struct mlxsw_skb_cb));
 
 	if (mlxsw_core_skb_transmit_busy(mlxsw_sx->core, &tx_info))
 		return NETDEV_TX_BUSY;
 
-	if (unlikely(skb_headroom(skb) < MLXSW_TXHDR_LEN)) {
-		struct sk_buff *skb_orig = skb;
-
-		skb = skb_realloc_headroom(skb, MLXSW_TXHDR_LEN);
-		if (!skb) {
-			this_cpu_inc(mlxsw_sx_port->pcpu_stats->tx_dropped);
-			dev_kfree_skb_any(skb_orig);
-			return NETDEV_TX_OK;
-		}
-		dev_consume_skb_any(skb_orig);
-	}
 	mlxsw_sx_txhdr_construct(skb, &tx_info);
 	/* TX header is consumed by HW on the way so we shouldn't count its
 	 * bytes as being sent.
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/net/ethernet/natsemi/sonic.c linux-libre-5.4.16-gnu/drivers/net/ethernet/natsemi/sonic.c
--- linux-libre-5.4.15-gnu/drivers/net/ethernet/natsemi/sonic.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/net/ethernet/natsemi/sonic.c	2020-01-29 10:45:34.000000000 -0500
@@ -64,6 +64,8 @@ static int sonic_open(struct net_device
 
 	netif_dbg(lp, ifup, dev, "%s: initializing sonic driver\n", __func__);
 
+	spin_lock_init(&lp->lock);
+
 	for (i = 0; i < SONIC_NUM_RRS; i++) {
 		struct sk_buff *skb = netdev_alloc_skb(dev, SONIC_RBSIZE + 2);
 		if (skb == NULL) {
@@ -114,6 +116,24 @@ static int sonic_open(struct net_device
 	return 0;
 }
 
+/* Wait for the SONIC to become idle. */
+static void sonic_quiesce(struct net_device *dev, u16 mask)
+{
+	struct sonic_local * __maybe_unused lp = netdev_priv(dev);
+	int i;
+	u16 bits;
+
+	for (i = 0; i < 1000; ++i) {
+		bits = SONIC_READ(SONIC_CMD) & mask;
+		if (!bits)
+			return;
+		if (irqs_disabled() || in_interrupt())
+			udelay(20);
+		else
+			usleep_range(100, 200);
+	}
+	WARN_ONCE(1, "command deadline expired! 0x%04x\n", bits);
+}
 
 /*
  * Close the SONIC device
@@ -130,6 +150,9 @@ static int sonic_close(struct net_device
 	/*
 	 * stop the SONIC, disable interrupts
 	 */
+	SONIC_WRITE(SONIC_CMD, SONIC_CR_RXDIS);
+	sonic_quiesce(dev, SONIC_CR_ALL);
+
 	SONIC_WRITE(SONIC_IMR, 0);
 	SONIC_WRITE(SONIC_ISR, 0x7fff);
 	SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
@@ -169,6 +192,9 @@ static void sonic_tx_timeout(struct net_
 	 * put the Sonic into software-reset mode and
 	 * disable all interrupts before releasing DMA buffers
 	 */
+	SONIC_WRITE(SONIC_CMD, SONIC_CR_RXDIS);
+	sonic_quiesce(dev, SONIC_CR_ALL);
+
 	SONIC_WRITE(SONIC_IMR, 0);
 	SONIC_WRITE(SONIC_ISR, 0x7fff);
 	SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
@@ -206,8 +232,6 @@ static void sonic_tx_timeout(struct net_
  *   wake the tx queue
  * Concurrently with all of this, the SONIC is potentially writing to
  * the status flags of the TDs.
- * Until some mutual exclusion is added, this code will not work with SMP. However,
- * MIPS Jazz machines and m68k Macs were all uni-processor machines.
  */
 
 static int sonic_send_packet(struct sk_buff *skb, struct net_device *dev)
@@ -215,7 +239,8 @@ static int sonic_send_packet(struct sk_b
 	struct sonic_local *lp = netdev_priv(dev);
 	dma_addr_t laddr;
 	int length;
-	int entry = lp->next_tx;
+	int entry;
+	unsigned long flags;
 
 	netif_dbg(lp, tx_queued, dev, "%s: skb=%p\n", __func__, skb);
 
@@ -237,6 +262,10 @@ static int sonic_send_packet(struct sk_b
 		return NETDEV_TX_OK;
 	}
 
+	spin_lock_irqsave(&lp->lock, flags);
+
+	entry = lp->next_tx;
+
 	sonic_tda_put(dev, entry, SONIC_TD_STATUS, 0);       /* clear status */
 	sonic_tda_put(dev, entry, SONIC_TD_FRAG_COUNT, 1);   /* single fragment */
 	sonic_tda_put(dev, entry, SONIC_TD_PKTSIZE, length); /* length of packet */
@@ -246,10 +275,6 @@ static int sonic_send_packet(struct sk_b
 	sonic_tda_put(dev, entry, SONIC_TD_LINK,
 		sonic_tda_get(dev, entry, SONIC_TD_LINK) | SONIC_EOL);
 
-	/*
-	 * Must set tx_skb[entry] only after clearing status, and
-	 * before clearing EOL and before stopping queue
-	 */
 	wmb();
 	lp->tx_len[entry] = length;
 	lp->tx_laddr[entry] = laddr;
@@ -272,6 +297,8 @@ static int sonic_send_packet(struct sk_b
 
 	SONIC_WRITE(SONIC_CMD, SONIC_CR_TXP);
 
+	spin_unlock_irqrestore(&lp->lock, flags);
+
 	return NETDEV_TX_OK;
 }
 
@@ -284,15 +311,28 @@ static irqreturn_t sonic_interrupt(int i
 	struct net_device *dev = dev_id;
 	struct sonic_local *lp = netdev_priv(dev);
 	int status;
+	unsigned long flags;
+
+	/* The lock has two purposes. Firstly, it synchronizes sonic_interrupt()
+	 * with sonic_send_packet() so that the two functions can share state.
+	 * Secondly, it makes sonic_interrupt() re-entrant, as that is required
+	 * by macsonic which must use two IRQs with different priority levels.
+	 */
+	spin_lock_irqsave(&lp->lock, flags);
+
+	status = SONIC_READ(SONIC_ISR) & SONIC_IMR_DEFAULT;
+	if (!status) {
+		spin_unlock_irqrestore(&lp->lock, flags);
 
-	if (!(status = SONIC_READ(SONIC_ISR) & SONIC_IMR_DEFAULT))
 		return IRQ_NONE;
+	}
 
 	do {
+		SONIC_WRITE(SONIC_ISR, status); /* clear the interrupt(s) */
+
 		if (status & SONIC_INT_PKTRX) {
 			netif_dbg(lp, intr, dev, "%s: packet rx\n", __func__);
 			sonic_rx(dev);	/* got packet(s) */
-			SONIC_WRITE(SONIC_ISR, SONIC_INT_PKTRX); /* clear the interrupt */
 		}
 
 		if (status & SONIC_INT_TXDN) {
@@ -300,11 +340,12 @@ static irqreturn_t sonic_interrupt(int i
 			int td_status;
 			int freed_some = 0;
 
-			/* At this point, cur_tx is the index of a TD that is one of:
-			 *   unallocated/freed                          (status set   & tx_skb[entry] clear)
-			 *   allocated and sent                         (status set   & tx_skb[entry] set  )
-			 *   allocated and not yet sent                 (status clear & tx_skb[entry] set  )
-			 *   still being allocated by sonic_send_packet (status clear & tx_skb[entry] clear)
+			/* The state of a Transmit Descriptor may be inferred
+			 * from { tx_skb[entry], td_status } as follows.
+			 * { clear, clear } => the TD has never been used
+			 * { set,   clear } => the TD was handed to SONIC
+			 * { set,   set   } => the TD was handed back
+			 * { clear, set   } => the TD is available for re-use
 			 */
 
 			netif_dbg(lp, intr, dev, "%s: tx done\n", __func__);
@@ -313,18 +354,19 @@ static irqreturn_t sonic_interrupt(int i
 				if ((td_status = sonic_tda_get(dev, entry, SONIC_TD_STATUS)) == 0)
 					break;
 
-				if (td_status & 0x0001) {
+				if (td_status & SONIC_TCR_PTX) {
 					lp->stats.tx_packets++;
 					lp->stats.tx_bytes += sonic_tda_get(dev, entry, SONIC_TD_PKTSIZE);
 				} else {
-					lp->stats.tx_errors++;
-					if (td_status & 0x0642)
+					if (td_status & (SONIC_TCR_EXD |
+					    SONIC_TCR_EXC | SONIC_TCR_BCM))
 						lp->stats.tx_aborted_errors++;
-					if (td_status & 0x0180)
+					if (td_status &
+					    (SONIC_TCR_NCRS | SONIC_TCR_CRLS))
 						lp->stats.tx_carrier_errors++;
-					if (td_status & 0x0020)
+					if (td_status & SONIC_TCR_OWC)
 						lp->stats.tx_window_errors++;
-					if (td_status & 0x0004)
+					if (td_status & SONIC_TCR_FU)
 						lp->stats.tx_fifo_errors++;
 				}
 
@@ -346,7 +388,6 @@ static irqreturn_t sonic_interrupt(int i
 			if (freed_some || lp->tx_skb[entry] == NULL)
 				netif_wake_queue(dev);  /* The ring is no longer full */
 			lp->cur_tx = entry;
-			SONIC_WRITE(SONIC_ISR, SONIC_INT_TXDN); /* clear the interrupt */
 		}
 
 		/*
@@ -355,42 +396,37 @@ static irqreturn_t sonic_interrupt(int i
 		if (status & SONIC_INT_RFO) {
 			netif_dbg(lp, rx_err, dev, "%s: rx fifo overrun\n",
 				  __func__);
-			lp->stats.rx_fifo_errors++;
-			SONIC_WRITE(SONIC_ISR, SONIC_INT_RFO); /* clear the interrupt */
 		}
 		if (status & SONIC_INT_RDE) {
 			netif_dbg(lp, rx_err, dev, "%s: rx descriptors exhausted\n",
 				  __func__);
-			lp->stats.rx_dropped++;
-			SONIC_WRITE(SONIC_ISR, SONIC_INT_RDE); /* clear the interrupt */
 		}
 		if (status & SONIC_INT_RBAE) {
 			netif_dbg(lp, rx_err, dev, "%s: rx buffer area exceeded\n",
 				  __func__);
-			lp->stats.rx_dropped++;
-			SONIC_WRITE(SONIC_ISR, SONIC_INT_RBAE); /* clear the interrupt */
 		}
 
 		/* counter overruns; all counters are 16bit wide */
-		if (status & SONIC_INT_FAE) {
+		if (status & SONIC_INT_FAE)
 			lp->stats.rx_frame_errors += 65536;
-			SONIC_WRITE(SONIC_ISR, SONIC_INT_FAE); /* clear the interrupt */
-		}
-		if (status & SONIC_INT_CRC) {
+		if (status & SONIC_INT_CRC)
 			lp->stats.rx_crc_errors += 65536;
-			SONIC_WRITE(SONIC_ISR, SONIC_INT_CRC); /* clear the interrupt */
-		}
-		if (status & SONIC_INT_MP) {
+		if (status & SONIC_INT_MP)
 			lp->stats.rx_missed_errors += 65536;
-			SONIC_WRITE(SONIC_ISR, SONIC_INT_MP); /* clear the interrupt */
-		}
 
 		/* transmit error */
 		if (status & SONIC_INT_TXER) {
-			if (SONIC_READ(SONIC_TCR) & SONIC_TCR_FU)
-				netif_dbg(lp, tx_err, dev, "%s: tx fifo underrun\n",
-					  __func__);
-			SONIC_WRITE(SONIC_ISR, SONIC_INT_TXER); /* clear the interrupt */
+			u16 tcr = SONIC_READ(SONIC_TCR);
+
+			netif_dbg(lp, tx_err, dev, "%s: TXER intr, TCR %04x\n",
+				  __func__, tcr);
+
+			if (tcr & (SONIC_TCR_EXD | SONIC_TCR_EXC |
+				   SONIC_TCR_FU | SONIC_TCR_BCM)) {
+				/* Aborted transmission. Try again. */
+				netif_stop_queue(dev);
+				SONIC_WRITE(SONIC_CMD, SONIC_CR_TXP);
+			}
 		}
 
 		/* bus retry */
@@ -400,107 +436,164 @@ static irqreturn_t sonic_interrupt(int i
 			/* ... to help debug DMA problems causing endless interrupts. */
 			/* Bounce the eth interface to turn on the interrupt again. */
 			SONIC_WRITE(SONIC_IMR, 0);
-			SONIC_WRITE(SONIC_ISR, SONIC_INT_BR); /* clear the interrupt */
 		}
 
-		/* load CAM done */
-		if (status & SONIC_INT_LCD)
-			SONIC_WRITE(SONIC_ISR, SONIC_INT_LCD); /* clear the interrupt */
-	} while((status = SONIC_READ(SONIC_ISR) & SONIC_IMR_DEFAULT));
+		status = SONIC_READ(SONIC_ISR) & SONIC_IMR_DEFAULT;
+	} while (status);
+
+	spin_unlock_irqrestore(&lp->lock, flags);
+
 	return IRQ_HANDLED;
 }
 
+/* Return the array index corresponding to a given Receive Buffer pointer. */
+static int index_from_addr(struct sonic_local *lp, dma_addr_t addr,
+			   unsigned int last)
+{
+	unsigned int i = last;
+
+	do {
+		i = (i + 1) & SONIC_RRS_MASK;
+		if (addr == lp->rx_laddr[i])
+			return i;
+	} while (i != last);
+
+	return -ENOENT;
+}
+
+/* Allocate and map a new skb to be used as a receive buffer. */
+static bool sonic_alloc_rb(struct net_device *dev, struct sonic_local *lp,
+			   struct sk_buff **new_skb, dma_addr_t *new_addr)
+{
+	*new_skb = netdev_alloc_skb(dev, SONIC_RBSIZE + 2);
+	if (!*new_skb)
+		return false;
+
+	if (SONIC_BUS_SCALE(lp->dma_bitmode) == 2)
+		skb_reserve(*new_skb, 2);
+
+	*new_addr = dma_map_single(lp->device, skb_put(*new_skb, SONIC_RBSIZE),
+				   SONIC_RBSIZE, DMA_FROM_DEVICE);
+	if (!*new_addr) {
+		dev_kfree_skb(*new_skb);
+		*new_skb = NULL;
+		return false;
+	}
+
+	return true;
+}
+
+/* Place a new receive resource in the Receive Resource Area and update RWP. */
+static void sonic_update_rra(struct net_device *dev, struct sonic_local *lp,
+			     dma_addr_t old_addr, dma_addr_t new_addr)
+{
+	unsigned int entry = sonic_rr_entry(dev, SONIC_READ(SONIC_RWP));
+	unsigned int end = sonic_rr_entry(dev, SONIC_READ(SONIC_RRP));
+	u32 buf;
+
+	/* The resources in the range [RRP, RWP) belong to the SONIC. This loop
+	 * scans the other resources in the RRA, those in the range [RWP, RRP).
+	 */
+	do {
+		buf = (sonic_rra_get(dev, entry, SONIC_RR_BUFADR_H) << 16) |
+		      sonic_rra_get(dev, entry, SONIC_RR_BUFADR_L);
+
+		if (buf == old_addr)
+			break;
+
+		entry = (entry + 1) & SONIC_RRS_MASK;
+	} while (entry != end);
+
+	WARN_ONCE(buf != old_addr, "failed to find resource!\n");
+
+	sonic_rra_put(dev, entry, SONIC_RR_BUFADR_H, new_addr >> 16);
+	sonic_rra_put(dev, entry, SONIC_RR_BUFADR_L, new_addr & 0xffff);
+
+	entry = (entry + 1) & SONIC_RRS_MASK;
+
+	SONIC_WRITE(SONIC_RWP, sonic_rr_addr(dev, entry));
+}
+
 /*
  * We have a good packet(s), pass it/them up the network stack.
  */
 static void sonic_rx(struct net_device *dev)
 {
 	struct sonic_local *lp = netdev_priv(dev);
-	int status;
 	int entry = lp->cur_rx;
+	int prev_entry = lp->eol_rx;
+	bool rbe = false;
 
 	while (sonic_rda_get(dev, entry, SONIC_RD_IN_USE) == 0) {
-		struct sk_buff *used_skb;
-		struct sk_buff *new_skb;
-		dma_addr_t new_laddr;
-		u16 bufadr_l;
-		u16 bufadr_h;
-		int pkt_len;
+		u16 status = sonic_rda_get(dev, entry, SONIC_RD_STATUS);
 
-		status = sonic_rda_get(dev, entry, SONIC_RD_STATUS);
-		if (status & SONIC_RCR_PRX) {
-			/* Malloc up new buffer. */
-			new_skb = netdev_alloc_skb(dev, SONIC_RBSIZE + 2);
-			if (new_skb == NULL) {
-				lp->stats.rx_dropped++;
-				break;
-			}
-			/* provide 16 byte IP header alignment unless DMA requires otherwise */
-			if(SONIC_BUS_SCALE(lp->dma_bitmode) == 2)
-				skb_reserve(new_skb, 2);
+		/* If the RD has LPKT set, the chip has finished with the RB */
+		if ((status & SONIC_RCR_PRX) && (status & SONIC_RCR_LPKT)) {
+			struct sk_buff *new_skb;
+			dma_addr_t new_laddr;
+			u32 addr = (sonic_rda_get(dev, entry,
+						  SONIC_RD_PKTPTR_H) << 16) |
+				   sonic_rda_get(dev, entry, SONIC_RD_PKTPTR_L);
+			int i = index_from_addr(lp, addr, entry);
 
-			new_laddr = dma_map_single(lp->device, skb_put(new_skb, SONIC_RBSIZE),
-		                               SONIC_RBSIZE, DMA_FROM_DEVICE);
-			if (!new_laddr) {
-				dev_kfree_skb(new_skb);
-				printk(KERN_ERR "%s: Failed to map rx buffer, dropping packet.\n", dev->name);
-				lp->stats.rx_dropped++;
+			if (i < 0) {
+				WARN_ONCE(1, "failed to find buffer!\n");
 				break;
 			}
 
-			/* now we have a new skb to replace it, pass the used one up the stack */
-			dma_unmap_single(lp->device, lp->rx_laddr[entry], SONIC_RBSIZE, DMA_FROM_DEVICE);
-			used_skb = lp->rx_skb[entry];
-			pkt_len = sonic_rda_get(dev, entry, SONIC_RD_PKTLEN);
-			skb_trim(used_skb, pkt_len);
-			used_skb->protocol = eth_type_trans(used_skb, dev);
-			netif_rx(used_skb);
-			lp->stats.rx_packets++;
-			lp->stats.rx_bytes += pkt_len;
+			if (sonic_alloc_rb(dev, lp, &new_skb, &new_laddr)) {
+				struct sk_buff *used_skb = lp->rx_skb[i];
+				int pkt_len;
 
-			/* and insert the new skb */
-			lp->rx_laddr[entry] = new_laddr;
-			lp->rx_skb[entry] = new_skb;
+				/* Pass the used buffer up the stack */
+				dma_unmap_single(lp->device, addr, SONIC_RBSIZE,
+						 DMA_FROM_DEVICE);
 
-			bufadr_l = (unsigned long)new_laddr & 0xffff;
-			bufadr_h = (unsigned long)new_laddr >> 16;
-			sonic_rra_put(dev, entry, SONIC_RR_BUFADR_L, bufadr_l);
-			sonic_rra_put(dev, entry, SONIC_RR_BUFADR_H, bufadr_h);
-		} else {
-			/* This should only happen, if we enable accepting broken packets. */
-			lp->stats.rx_errors++;
-			if (status & SONIC_RCR_FAER)
-				lp->stats.rx_frame_errors++;
-			if (status & SONIC_RCR_CRCR)
-				lp->stats.rx_crc_errors++;
-		}
-		if (status & SONIC_RCR_LPKT) {
-			/*
-			 * this was the last packet out of the current receive buffer
-			 * give the buffer back to the SONIC
-			 */
-			lp->cur_rwp += SIZEOF_SONIC_RR * SONIC_BUS_SCALE(lp->dma_bitmode);
-			if (lp->cur_rwp >= lp->rra_end) lp->cur_rwp = lp->rra_laddr & 0xffff;
-			SONIC_WRITE(SONIC_RWP, lp->cur_rwp);
-			if (SONIC_READ(SONIC_ISR) & SONIC_INT_RBE) {
-				netif_dbg(lp, rx_err, dev, "%s: rx buffer exhausted\n",
-					  __func__);
-				SONIC_WRITE(SONIC_ISR, SONIC_INT_RBE); /* clear the flag */
+				pkt_len = sonic_rda_get(dev, entry,
+							SONIC_RD_PKTLEN);
+				skb_trim(used_skb, pkt_len);
+				used_skb->protocol = eth_type_trans(used_skb,
+								    dev);
+				netif_rx(used_skb);
+				lp->stats.rx_packets++;
+				lp->stats.rx_bytes += pkt_len;
+
+				lp->rx_skb[i] = new_skb;
+				lp->rx_laddr[i] = new_laddr;
+			} else {
+				/* Failed to obtain a new buffer so re-use it */
+				new_laddr = addr;
+				lp->stats.rx_dropped++;
 			}
-		} else
-			printk(KERN_ERR "%s: rx desc without RCR_LPKT. Shouldn't happen !?\n",
-			     dev->name);
+			/* If RBE is already asserted when RWP advances then
+			 * it's safe to clear RBE after processing this packet.
+			 */
+			rbe = rbe || SONIC_READ(SONIC_ISR) & SONIC_INT_RBE;
+			sonic_update_rra(dev, lp, addr, new_laddr);
+		}
 		/*
 		 * give back the descriptor
 		 */
-		sonic_rda_put(dev, entry, SONIC_RD_LINK,
-			sonic_rda_get(dev, entry, SONIC_RD_LINK) | SONIC_EOL);
+		sonic_rda_put(dev, entry, SONIC_RD_STATUS, 0);
 		sonic_rda_put(dev, entry, SONIC_RD_IN_USE, 1);
-		sonic_rda_put(dev, lp->eol_rx, SONIC_RD_LINK,
-			sonic_rda_get(dev, lp->eol_rx, SONIC_RD_LINK) & ~SONIC_EOL);
-		lp->eol_rx = entry;
-		lp->cur_rx = entry = (entry + 1) & SONIC_RDS_MASK;
+
+		prev_entry = entry;
+		entry = (entry + 1) & SONIC_RDS_MASK;
 	}
+
+	lp->cur_rx = entry;
+
+	if (prev_entry != lp->eol_rx) {
+		/* Advance the EOL flag to put descriptors back into service */
+		sonic_rda_put(dev, prev_entry, SONIC_RD_LINK, SONIC_EOL |
+			      sonic_rda_get(dev, prev_entry, SONIC_RD_LINK));
+		sonic_rda_put(dev, lp->eol_rx, SONIC_RD_LINK, ~SONIC_EOL &
+			      sonic_rda_get(dev, lp->eol_rx, SONIC_RD_LINK));
+		lp->eol_rx = prev_entry;
+	}
+
+	if (rbe)
+		SONIC_WRITE(SONIC_ISR, SONIC_INT_RBE);
 	/*
 	 * If any worth-while packets have been received, netif_rx()
 	 * has done a mark_bh(NET_BH) for us and will work on them
@@ -550,6 +643,8 @@ static void sonic_multicast_list(struct
 		    (netdev_mc_count(dev) > 15)) {
 			rcr |= SONIC_RCR_AMC;
 		} else {
+			unsigned long flags;
+
 			netif_dbg(lp, ifup, dev, "%s: mc_count %d\n", __func__,
 				  netdev_mc_count(dev));
 			sonic_set_cam_enable(dev, 1);  /* always enable our own address */
@@ -563,9 +658,14 @@ static void sonic_multicast_list(struct
 				i++;
 			}
 			SONIC_WRITE(SONIC_CDC, 16);
-			/* issue Load CAM command */
 			SONIC_WRITE(SONIC_CDP, lp->cda_laddr & 0xffff);
+
+			/* LCAM and TXP commands can't be used simultaneously */
+			spin_lock_irqsave(&lp->lock, flags);
+			sonic_quiesce(dev, SONIC_CR_TXP);
 			SONIC_WRITE(SONIC_CMD, SONIC_CR_LCAM);
+			sonic_quiesce(dev, SONIC_CR_LCAM);
+			spin_unlock_irqrestore(&lp->lock, flags);
 		}
 	}
 
@@ -580,7 +680,6 @@ static void sonic_multicast_list(struct
  */
 static int sonic_init(struct net_device *dev)
 {
-	unsigned int cmd;
 	struct sonic_local *lp = netdev_priv(dev);
 	int i;
 
@@ -592,12 +691,16 @@ static int sonic_init(struct net_device
 	SONIC_WRITE(SONIC_ISR, 0x7fff);
 	SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
 
+	/* While in reset mode, clear CAM Enable register */
+	SONIC_WRITE(SONIC_CE, 0);
+
 	/*
 	 * clear software reset flag, disable receiver, clear and
 	 * enable interrupts, then completely initialize the SONIC
 	 */
 	SONIC_WRITE(SONIC_CMD, 0);
-	SONIC_WRITE(SONIC_CMD, SONIC_CR_RXDIS);
+	SONIC_WRITE(SONIC_CMD, SONIC_CR_RXDIS | SONIC_CR_STP);
+	sonic_quiesce(dev, SONIC_CR_ALL);
 
 	/*
 	 * initialize the receive resource area
@@ -615,15 +718,10 @@ static int sonic_init(struct net_device
 	}
 
 	/* initialize all RRA registers */
-	lp->rra_end = (lp->rra_laddr + SONIC_NUM_RRS * SIZEOF_SONIC_RR *
-					SONIC_BUS_SCALE(lp->dma_bitmode)) & 0xffff;
-	lp->cur_rwp = (lp->rra_laddr + (SONIC_NUM_RRS - 1) * SIZEOF_SONIC_RR *
-					SONIC_BUS_SCALE(lp->dma_bitmode)) & 0xffff;
-
-	SONIC_WRITE(SONIC_RSA, lp->rra_laddr & 0xffff);
-	SONIC_WRITE(SONIC_REA, lp->rra_end);
-	SONIC_WRITE(SONIC_RRP, lp->rra_laddr & 0xffff);
-	SONIC_WRITE(SONIC_RWP, lp->cur_rwp);
+	SONIC_WRITE(SONIC_RSA, sonic_rr_addr(dev, 0));
+	SONIC_WRITE(SONIC_REA, sonic_rr_addr(dev, SONIC_NUM_RRS));
+	SONIC_WRITE(SONIC_RRP, sonic_rr_addr(dev, 0));
+	SONIC_WRITE(SONIC_RWP, sonic_rr_addr(dev, SONIC_NUM_RRS - 1));
 	SONIC_WRITE(SONIC_URRA, lp->rra_laddr >> 16);
 	SONIC_WRITE(SONIC_EOBC, (SONIC_RBSIZE >> 1) - (lp->dma_bitmode ? 2 : 1));
 
@@ -631,14 +729,7 @@ static int sonic_init(struct net_device
 	netif_dbg(lp, ifup, dev, "%s: issuing RRRA command\n", __func__);
 
 	SONIC_WRITE(SONIC_CMD, SONIC_CR_RRRA);
-	i = 0;
-	while (i++ < 100) {
-		if (SONIC_READ(SONIC_CMD) & SONIC_CR_RRRA)
-			break;
-	}
-
-	netif_dbg(lp, ifup, dev, "%s: status=%x, i=%d\n", __func__,
-		  SONIC_READ(SONIC_CMD), i);
+	sonic_quiesce(dev, SONIC_CR_RRRA);
 
 	/*
 	 * Initialize the receive descriptors so that they
@@ -713,28 +804,17 @@ static int sonic_init(struct net_device
 	 * load the CAM
 	 */
 	SONIC_WRITE(SONIC_CMD, SONIC_CR_LCAM);
-
-	i = 0;
-	while (i++ < 100) {
-		if (SONIC_READ(SONIC_ISR) & SONIC_INT_LCD)
-			break;
-	}
-	netif_dbg(lp, ifup, dev, "%s: CMD=%x, ISR=%x, i=%d\n", __func__,
-		  SONIC_READ(SONIC_CMD), SONIC_READ(SONIC_ISR), i);
+	sonic_quiesce(dev, SONIC_CR_LCAM);
 
 	/*
 	 * enable receiver, disable loopback
 	 * and enable all interrupts
 	 */
-	SONIC_WRITE(SONIC_CMD, SONIC_CR_RXEN | SONIC_CR_STP);
 	SONIC_WRITE(SONIC_RCR, SONIC_RCR_DEFAULT);
 	SONIC_WRITE(SONIC_TCR, SONIC_TCR_DEFAULT);
 	SONIC_WRITE(SONIC_ISR, 0x7fff);
 	SONIC_WRITE(SONIC_IMR, SONIC_IMR_DEFAULT);
-
-	cmd = SONIC_READ(SONIC_CMD);
-	if ((cmd & SONIC_CR_RXEN) == 0 || (cmd & SONIC_CR_STP) == 0)
-		printk(KERN_ERR "sonic_init: failed, status=%x\n", cmd);
+	SONIC_WRITE(SONIC_CMD, SONIC_CR_RXEN);
 
 	netif_dbg(lp, ifup, dev, "%s: new status=%x\n", __func__,
 		  SONIC_READ(SONIC_CMD));
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/net/ethernet/natsemi/sonic.h linux-libre-5.4.16-gnu/drivers/net/ethernet/natsemi/sonic.h
--- linux-libre-5.4.15-gnu/drivers/net/ethernet/natsemi/sonic.h	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/net/ethernet/natsemi/sonic.h	2020-01-29 10:45:34.000000000 -0500
@@ -110,6 +110,9 @@
 #define SONIC_CR_TXP            0x0002
 #define SONIC_CR_HTX            0x0001
 
+#define SONIC_CR_ALL (SONIC_CR_LCAM | SONIC_CR_RRRA | \
+		      SONIC_CR_RXEN | SONIC_CR_TXP)
+
 /*
  * SONIC data configuration bits
  */
@@ -175,6 +178,7 @@
 #define SONIC_TCR_NCRS          0x0100
 #define SONIC_TCR_CRLS          0x0080
 #define SONIC_TCR_EXC           0x0040
+#define SONIC_TCR_OWC           0x0020
 #define SONIC_TCR_PMB           0x0008
 #define SONIC_TCR_FU            0x0004
 #define SONIC_TCR_BCM           0x0002
@@ -274,8 +278,9 @@
 #define SONIC_NUM_RDS   SONIC_NUM_RRS /* number of receive descriptors */
 #define SONIC_NUM_TDS   16            /* number of transmit descriptors */
 
-#define SONIC_RDS_MASK  (SONIC_NUM_RDS-1)
-#define SONIC_TDS_MASK  (SONIC_NUM_TDS-1)
+#define SONIC_RRS_MASK  (SONIC_NUM_RRS - 1)
+#define SONIC_RDS_MASK  (SONIC_NUM_RDS - 1)
+#define SONIC_TDS_MASK  (SONIC_NUM_TDS - 1)
 
 #define SONIC_RBSIZE	1520          /* size of one resource buffer */
 
@@ -312,8 +317,6 @@ struct sonic_local {
 	u32 rda_laddr;              /* logical DMA address of RDA */
 	dma_addr_t rx_laddr[SONIC_NUM_RRS]; /* logical DMA addresses of rx skbuffs */
 	dma_addr_t tx_laddr[SONIC_NUM_TDS]; /* logical DMA addresses of tx skbuffs */
-	unsigned int rra_end;
-	unsigned int cur_rwp;
 	unsigned int cur_rx;
 	unsigned int cur_tx;           /* first unacked transmit packet */
 	unsigned int eol_rx;
@@ -322,6 +325,7 @@ struct sonic_local {
 	int msg_enable;
 	struct device *device;         /* generic device */
 	struct net_device_stats stats;
+	spinlock_t lock;
 };
 
 #define TX_TIMEOUT (3 * HZ)
@@ -344,30 +348,30 @@ static void sonic_msg_init(struct net_de
    as far as we can tell. */
 /* OpenBSD calls this "SWO".  I'd like to think that sonic_buf_put()
    is a much better name. */
-static inline void sonic_buf_put(void* base, int bitmode,
+static inline void sonic_buf_put(u16 *base, int bitmode,
 				 int offset, __u16 val)
 {
 	if (bitmode)
 #ifdef __BIG_ENDIAN
-		((__u16 *) base + (offset*2))[1] = val;
+		__raw_writew(val, base + (offset * 2) + 1);
 #else
-		((__u16 *) base + (offset*2))[0] = val;
+		__raw_writew(val, base + (offset * 2) + 0);
 #endif
 	else
-	 	((__u16 *) base)[offset] = val;
+		__raw_writew(val, base + (offset * 1) + 0);
 }
 
-static inline __u16 sonic_buf_get(void* base, int bitmode,
+static inline __u16 sonic_buf_get(u16 *base, int bitmode,
 				  int offset)
 {
 	if (bitmode)
 #ifdef __BIG_ENDIAN
-		return ((volatile __u16 *) base + (offset*2))[1];
+		return __raw_readw(base + (offset * 2) + 1);
 #else
-		return ((volatile __u16 *) base + (offset*2))[0];
+		return __raw_readw(base + (offset * 2) + 0);
 #endif
 	else
-		return ((volatile __u16 *) base)[offset];
+		return __raw_readw(base + (offset * 1) + 0);
 }
 
 /* Inlines that you should actually use for reading/writing DMA buffers */
@@ -447,6 +451,22 @@ static inline __u16 sonic_rra_get(struct
 			     (entry * SIZEOF_SONIC_RR) + offset);
 }
 
+static inline u16 sonic_rr_addr(struct net_device *dev, int entry)
+{
+	struct sonic_local *lp = netdev_priv(dev);
+
+	return lp->rra_laddr +
+	       entry * SIZEOF_SONIC_RR * SONIC_BUS_SCALE(lp->dma_bitmode);
+}
+
+static inline u16 sonic_rr_entry(struct net_device *dev, u16 addr)
+{
+	struct sonic_local *lp = netdev_priv(dev);
+
+	return (addr - (u16)lp->rra_laddr) / (SIZEOF_SONIC_RR *
+					      SONIC_BUS_SCALE(lp->dma_bitmode));
+}
+
 static const char version[] =
     "sonic.c:v0.92 20.9.98 tsbogend@alpha.franken.de\n";
 
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/net/gtp.c linux-libre-5.4.16-gnu/drivers/net/gtp.c
--- linux-libre-5.4.15-gnu/drivers/net/gtp.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/net/gtp.c	2020-01-29 10:45:34.000000000 -0500
@@ -804,19 +804,21 @@ static struct sock *gtp_encap_enable_soc
 		return NULL;
 	}
 
-	if (sock->sk->sk_protocol != IPPROTO_UDP) {
+	sk = sock->sk;
+	if (sk->sk_protocol != IPPROTO_UDP ||
+	    sk->sk_type != SOCK_DGRAM ||
+	    (sk->sk_family != AF_INET && sk->sk_family != AF_INET6)) {
 		pr_debug("socket fd=%d not UDP\n", fd);
 		sk = ERR_PTR(-EINVAL);
 		goto out_sock;
 	}
 
-	lock_sock(sock->sk);
-	if (sock->sk->sk_user_data) {
+	lock_sock(sk);
+	if (sk->sk_user_data) {
 		sk = ERR_PTR(-EBUSY);
 		goto out_rel_sock;
 	}
 
-	sk = sock->sk;
 	sock_hold(sk);
 
 	tuncfg.sk_user_data = gtp;
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/net/slip/slip.c linux-libre-5.4.16-gnu/drivers/net/slip/slip.c
--- linux-libre-5.4.15-gnu/drivers/net/slip/slip.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/net/slip/slip.c	2020-01-29 10:45:34.000000000 -0500
@@ -452,9 +452,16 @@ static void slip_transmit(struct work_st
  */
 static void slip_write_wakeup(struct tty_struct *tty)
 {
-	struct slip *sl = tty->disc_data;
+	struct slip *sl;
+
+	rcu_read_lock();
+	sl = rcu_dereference(tty->disc_data);
+	if (!sl)
+		goto out;
 
 	schedule_work(&sl->tx_work);
+out:
+	rcu_read_unlock();
 }
 
 static void sl_tx_timeout(struct net_device *dev)
@@ -882,10 +889,11 @@ static void slip_close(struct tty_struct
 		return;
 
 	spin_lock_bh(&sl->lock);
-	tty->disc_data = NULL;
+	rcu_assign_pointer(tty->disc_data, NULL);
 	sl->tty = NULL;
 	spin_unlock_bh(&sl->lock);
 
+	synchronize_rcu();
 	flush_work(&sl->tx_work);
 
 	/* VSV = very important to remove timers */
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/net/tun.c linux-libre-5.4.16-gnu/drivers/net/tun.c
--- linux-libre-5.4.15-gnu/drivers/net/tun.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/net/tun.c	2020-01-29 10:45:34.000000000 -0500
@@ -1936,6 +1936,10 @@ drop:
 			if (ret != XDP_PASS) {
 				rcu_read_unlock();
 				local_bh_enable();
+				if (frags) {
+					tfile->napi.skb = NULL;
+					mutex_unlock(&tfile->napi_mutex);
+				}
 				return total_len;
 			}
 		}
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/net/usb/lan78xx.c linux-libre-5.4.16-gnu/drivers/net/usb/lan78xx.c
--- linux-libre-5.4.15-gnu/drivers/net/usb/lan78xx.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/net/usb/lan78xx.c	2020-01-29 10:45:34.000000000 -0500
@@ -20,6 +20,7 @@
 #include <linux/mdio.h>
 #include <linux/phy.h>
 #include <net/ip6_checksum.h>
+#include <net/vxlan.h>
 #include <linux/interrupt.h>
 #include <linux/irqdomain.h>
 #include <linux/irq.h>
@@ -3668,6 +3669,19 @@ static void lan78xx_tx_timeout(struct ne
 	tasklet_schedule(&dev->bh);
 }
 
+static netdev_features_t lan78xx_features_check(struct sk_buff *skb,
+						struct net_device *netdev,
+						netdev_features_t features)
+{
+	if (skb->len + TX_OVERHEAD > MAX_SINGLE_PACKET_SIZE)
+		features &= ~NETIF_F_GSO_MASK;
+
+	features = vlan_features_check(skb, features);
+	features = vxlan_features_check(skb, features);
+
+	return features;
+}
+
 static const struct net_device_ops lan78xx_netdev_ops = {
 	.ndo_open		= lan78xx_open,
 	.ndo_stop		= lan78xx_stop,
@@ -3681,6 +3695,7 @@ static const struct net_device_ops lan78
 	.ndo_set_features	= lan78xx_set_features,
 	.ndo_vlan_rx_add_vid	= lan78xx_vlan_rx_add_vid,
 	.ndo_vlan_rx_kill_vid	= lan78xx_vlan_rx_kill_vid,
+	.ndo_features_check	= lan78xx_features_check,
 };
 
 static void lan78xx_stat_monitor(struct timer_list *t)
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/net/wireless/cisco/airo.c linux-libre-5.4.16-gnu/drivers/net/wireless/cisco/airo.c
--- linux-libre-5.4.15-gnu/drivers/net/wireless/cisco/airo.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/net/wireless/cisco/airo.c	2020-01-29 10:45:34.000000000 -0500
@@ -7790,16 +7790,8 @@ static int readrids(struct net_device *d
 	case AIROGVLIST:    ridcode = RID_APLIST;       break;
 	case AIROGDRVNAM:   ridcode = RID_DRVNAME;      break;
 	case AIROGEHTENC:   ridcode = RID_ETHERENCAP;   break;
-	case AIROGWEPKTMP:  ridcode = RID_WEP_TEMP;
-		/* Only super-user can read WEP keys */
-		if (!capable(CAP_NET_ADMIN))
-			return -EPERM;
-		break;
-	case AIROGWEPKNV:   ridcode = RID_WEP_PERM;
-		/* Only super-user can read WEP keys */
-		if (!capable(CAP_NET_ADMIN))
-			return -EPERM;
-		break;
+	case AIROGWEPKTMP:  ridcode = RID_WEP_TEMP;	break;
+	case AIROGWEPKNV:   ridcode = RID_WEP_PERM;	break;
 	case AIROGSTAT:     ridcode = RID_STATUS;       break;
 	case AIROGSTATSD32: ridcode = RID_STATSDELTA;   break;
 	case AIROGSTATSC32: ridcode = RID_STATS;        break;
@@ -7813,7 +7805,13 @@ static int readrids(struct net_device *d
 		return -EINVAL;
 	}
 
-	if ((iobuf = kmalloc(RIDSIZE, GFP_KERNEL)) == NULL)
+	if (ridcode == RID_WEP_TEMP || ridcode == RID_WEP_PERM) {
+		/* Only super-user can read WEP keys */
+		if (!capable(CAP_NET_ADMIN))
+			return -EPERM;
+	}
+
+	if ((iobuf = kzalloc(RIDSIZE, GFP_KERNEL)) == NULL)
 		return -ENOMEM;
 
 	PC4500_readrid(ai,ridcode,iobuf,RIDSIZE, 1);
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/net/wireless/intel/iwlwifi/mvm/constants.h linux-libre-5.4.16-gnu/drivers/net/wireless/intel/iwlwifi/mvm/constants.h
--- linux-libre-5.4.15-gnu/drivers/net/wireless/intel/iwlwifi/mvm/constants.h	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/net/wireless/intel/iwlwifi/mvm/constants.h	2020-01-29 10:45:34.000000000 -0500
@@ -154,5 +154,6 @@
 #define IWL_MVM_D3_DEBUG			false
 #define IWL_MVM_USE_TWT				false
 #define IWL_MVM_AMPDU_CONSEC_DROPS_DELBA	10
+#define IWL_MVM_USE_NSSN_SYNC			0
 
 #endif /* __MVM_CONSTANTS_H */
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c linux-libre-5.4.16-gnu/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
--- linux-libre-5.4.15-gnu/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c	2020-01-29 10:45:34.000000000 -0500
@@ -742,6 +742,20 @@ int iwl_mvm_mac_setup_register(struct iw
 	return ret;
 }
 
+static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
+			   struct ieee80211_sta *sta)
+{
+	if (likely(sta)) {
+		if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0))
+			return;
+	} else {
+		if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0))
+			return;
+	}
+
+	ieee80211_free_txskb(mvm->hw, skb);
+}
+
 static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
 			   struct ieee80211_tx_control *control,
 			   struct sk_buff *skb)
@@ -785,14 +799,7 @@ static void iwl_mvm_mac_tx(struct ieee80
 		}
 	}
 
-	if (sta) {
-		if (iwl_mvm_tx_skb(mvm, skb, sta))
-			goto drop;
-		return;
-	}
-
-	if (iwl_mvm_tx_skb_non_sta(mvm, skb))
-		goto drop;
+	iwl_mvm_tx_skb(mvm, skb, sta);
 	return;
  drop:
 	ieee80211_free_txskb(hw, skb);
@@ -842,10 +849,7 @@ void iwl_mvm_mac_itxq_xmit(struct ieee80
 				break;
 			}
 
-			if (!txq->sta)
-				iwl_mvm_tx_skb_non_sta(mvm, skb);
-			else
-				iwl_mvm_tx_skb(mvm, skb, txq->sta);
+			iwl_mvm_tx_skb(mvm, skb, txq->sta);
 		}
 	} while (atomic_dec_return(&mvmtxq->tx_request));
 	rcu_read_unlock();
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h linux-libre-5.4.16-gnu/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
--- linux-libre-5.4.15-gnu/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h	2020-01-29 10:45:34.000000000 -0500
@@ -1508,8 +1508,8 @@ int __must_check iwl_mvm_send_cmd_status
 int __must_check iwl_mvm_send_cmd_pdu_status(struct iwl_mvm *mvm, u32 id,
 					     u16 len, const void *data,
 					     u32 *status);
-int iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
-		   struct ieee80211_sta *sta);
+int iwl_mvm_tx_skb_sta(struct iwl_mvm *mvm, struct sk_buff *skb,
+		       struct ieee80211_sta *sta);
 int iwl_mvm_tx_skb_non_sta(struct iwl_mvm *mvm, struct sk_buff *skb);
 void iwl_mvm_set_tx_cmd(struct iwl_mvm *mvm, struct sk_buff *skb,
 			struct iwl_tx_cmd *tx_cmd,
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c linux-libre-5.4.16-gnu/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
--- linux-libre-5.4.15-gnu/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c	2020-01-29 10:45:34.000000000 -0500
@@ -514,14 +514,17 @@ static bool iwl_mvm_is_sn_less(u16 sn1,
 
 static void iwl_mvm_sync_nssn(struct iwl_mvm *mvm, u8 baid, u16 nssn)
 {
-	struct iwl_mvm_rss_sync_notif notif = {
-		.metadata.type = IWL_MVM_RXQ_NSSN_SYNC,
-		.metadata.sync = 0,
-		.nssn_sync.baid = baid,
-		.nssn_sync.nssn = nssn,
-	};
+	if (IWL_MVM_USE_NSSN_SYNC) {
+		struct iwl_mvm_rss_sync_notif notif = {
+			.metadata.type = IWL_MVM_RXQ_NSSN_SYNC,
+			.metadata.sync = 0,
+			.nssn_sync.baid = baid,
+			.nssn_sync.nssn = nssn,
+		};
 
-	iwl_mvm_sync_rx_queues_internal(mvm, (void *)&notif, sizeof(notif));
+		iwl_mvm_sync_rx_queues_internal(mvm, (void *)&notif,
+						sizeof(notif));
+	}
 }
 
 #define RX_REORDER_BUF_TIMEOUT_MQ (HZ / 10)
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/net/wireless/intel/iwlwifi/mvm/scan.c linux-libre-5.4.16-gnu/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
--- linux-libre-5.4.15-gnu/drivers/net/wireless/intel/iwlwifi/mvm/scan.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/net/wireless/intel/iwlwifi/mvm/scan.c	2020-01-29 10:45:34.000000000 -0500
@@ -1220,7 +1220,7 @@ static int iwl_mvm_legacy_config_scan(st
 		cmd_size = sizeof(struct iwl_scan_config_v2);
 	else
 		cmd_size = sizeof(struct iwl_scan_config_v1);
-	cmd_size += num_channels;
+	cmd_size += mvm->fw->ucode_capa.n_scan_channels;
 
 	cfg = kzalloc(cmd_size, GFP_KERNEL);
 	if (!cfg)
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/net/wireless/intel/iwlwifi/mvm/tx.c linux-libre-5.4.16-gnu/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
--- linux-libre-5.4.15-gnu/drivers/net/wireless/intel/iwlwifi/mvm/tx.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/net/wireless/intel/iwlwifi/mvm/tx.c	2020-01-29 10:45:34.000000000 -0500
@@ -1151,7 +1151,7 @@ static int iwl_mvm_tx_mpdu(struct iwl_mv
 	if (WARN_ONCE(txq_id == IWL_MVM_INVALID_QUEUE, "Invalid TXQ id")) {
 		iwl_trans_free_tx_cmd(mvm->trans, dev_cmd);
 		spin_unlock(&mvmsta->lock);
-		return 0;
+		return -1;
 	}
 
 	if (!iwl_mvm_has_new_tx_api(mvm)) {
@@ -1203,8 +1203,8 @@ drop:
 	return -1;
 }
 
-int iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
-		   struct ieee80211_sta *sta)
+int iwl_mvm_tx_skb_sta(struct iwl_mvm *mvm, struct sk_buff *skb,
+		       struct ieee80211_sta *sta)
 {
 	struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
 	struct ieee80211_tx_info info;
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/net/wireless/intel/iwlwifi/pcie/rx.c linux-libre-5.4.16-gnu/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
--- linux-libre-5.4.15-gnu/drivers/net/wireless/intel/iwlwifi/pcie/rx.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/net/wireless/intel/iwlwifi/pcie/rx.c	2020-01-29 10:45:34.000000000 -0500
@@ -1537,13 +1537,13 @@ out:
 
 	napi = &rxq->napi;
 	if (napi->poll) {
+		napi_gro_flush(napi, false);
+
 		if (napi->rx_count) {
 			netif_receive_skb_list(&napi->rx_list);
 			INIT_LIST_HEAD(&napi->rx_list);
 			napi->rx_count = 0;
 		}
-
-		napi_gro_flush(napi, false);
 	}
 
 	iwl_pcie_rxq_restock(trans, rxq);
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/net/wireless/marvell/libertas/cfg.c linux-libre-5.4.16-gnu/drivers/net/wireless/marvell/libertas/cfg.c
--- linux-libre-5.4.15-gnu/drivers/net/wireless/marvell/libertas/cfg.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/net/wireless/marvell/libertas/cfg.c	2020-01-29 10:45:34.000000000 -0500
@@ -273,6 +273,10 @@ add_ie_rates(u8 *tlv, const u8 *ie, int
 	int hw, ap, ap_max = ie[1];
 	u8 hw_rate;
 
+	if (ap_max > MAX_RATES) {
+		lbs_deb_assoc("invalid rates\n");
+		return tlv;
+	}
 	/* Advance past IE header */
 	ie += 2;
 
@@ -1717,6 +1721,9 @@ static int lbs_ibss_join_existing(struct
 	struct cmd_ds_802_11_ad_hoc_join cmd;
 	u8 preamble = RADIO_PREAMBLE_SHORT;
 	int ret = 0;
+	int hw, i;
+	u8 rates_max;
+	u8 *rates;
 
 	/* TODO: set preamble based on scan result */
 	ret = lbs_set_radio(priv, preamble, 1);
@@ -1775,9 +1782,12 @@ static int lbs_ibss_join_existing(struct
 	if (!rates_eid) {
 		lbs_add_rates(cmd.bss.rates);
 	} else {
-		int hw, i;
-		u8 rates_max = rates_eid[1];
-		u8 *rates = cmd.bss.rates;
+		rates_max = rates_eid[1];
+		if (rates_max > MAX_RATES) {
+			lbs_deb_join("invalid rates");
+			goto out;
+		}
+		rates = cmd.bss.rates;
 		for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) {
 			u8 hw_rate = lbs_rates[hw].bitrate / 5;
 			for (i = 0; i < rates_max; i++) {
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/pci/quirks.c linux-libre-5.4.16-gnu/drivers/pci/quirks.c
--- linux-libre-5.4.15-gnu/drivers/pci/quirks.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/pci/quirks.c	2020-01-29 10:45:34.000000000 -0500
@@ -5021,18 +5021,25 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SE
 
 #ifdef CONFIG_PCI_ATS
 /*
- * Some devices have a broken ATS implementation causing IOMMU stalls.
- * Don't use ATS for those devices.
+ * Some devices require additional driver setup to enable ATS.  Don't use
+ * ATS for those devices as ATS will be enabled before the driver has had a
+ * chance to load and configure the device.
  */
-static void quirk_no_ats(struct pci_dev *pdev)
+static void quirk_amd_harvest_no_ats(struct pci_dev *pdev)
 {
-	pci_info(pdev, "disabling ATS (broken on this device)\n");
+	if (pdev->device == 0x7340 && pdev->revision != 0xc5)
+		return;
+
+	pci_info(pdev, "disabling ATS\n");
 	pdev->ats_cap = 0;
 }
 
 /* AMD Stoney platform GPU */
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x98e4, quirk_no_ats);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x6900, quirk_no_ats);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x98e4, quirk_amd_harvest_no_ats);
+/* AMD Iceland dGPU */
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x6900, quirk_amd_harvest_no_ats);
+/* AMD Navi14 dGPU */
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7340, quirk_amd_harvest_no_ats);
 #endif /* CONFIG_PCI_ATS */
 
 /* Freescale PCIe doesn't support MSI in RC mode */
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/pinctrl/intel/pinctrl-sunrisepoint.c linux-libre-5.4.16-gnu/drivers/pinctrl/intel/pinctrl-sunrisepoint.c
--- linux-libre-5.4.15-gnu/drivers/pinctrl/intel/pinctrl-sunrisepoint.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/pinctrl/intel/pinctrl-sunrisepoint.c	2020-01-29 10:45:34.000000000 -0500
@@ -49,6 +49,7 @@
 		.padown_offset = SPT_PAD_OWN,		\
 		.padcfglock_offset = SPT_PADCFGLOCK,	\
 		.hostown_offset = SPT_HOSTSW_OWN,	\
+		.is_offset = SPT_GPI_IS,		\
 		.ie_offset = SPT_GPI_IE,		\
 		.pin_base = (s),			\
 		.npins = ((e) - (s) + 1),		\
diff -druNp --no-dereference linux-libre-5.4.15-gnu/drivers/target/iscsi/iscsi_target.c linux-libre-5.4.16-gnu/drivers/target/iscsi/iscsi_target.c
--- linux-libre-5.4.15-gnu/drivers/target/iscsi/iscsi_target.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/drivers/target/iscsi/iscsi_target.c	2020-01-29 10:45:34.000000000 -0500
@@ -4151,9 +4151,6 @@ int iscsit_close_connection(
 	iscsit_stop_nopin_response_timer(conn);
 	iscsit_stop_nopin_timer(conn);
 
-	if (conn->conn_transport->iscsit_wait_conn)
-		conn->conn_transport->iscsit_wait_conn(conn);
-
 	/*
 	 * During Connection recovery drop unacknowledged out of order
 	 * commands for this connection, and prepare the other commands
@@ -4239,6 +4236,9 @@ int iscsit_close_connection(
 	target_sess_cmd_list_set_waiting(sess->se_sess);
 	target_wait_for_sess_cmds(sess->se_sess);
 
+	if (conn->conn_transport->iscsit_wait_conn)
+		conn->conn_transport->iscsit_wait_conn(conn);
+
 	ahash_request_free(conn->conn_tx_hash);
 	if (conn->conn_rx_hash) {
 		struct crypto_ahash *tfm;
diff -druNp --no-dereference linux-libre-5.4.15-gnu/fs/afs/cell.c linux-libre-5.4.16-gnu/fs/afs/cell.c
--- linux-libre-5.4.15-gnu/fs/afs/cell.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/fs/afs/cell.c	2020-01-29 10:45:34.000000000 -0500
@@ -134,8 +134,17 @@ static struct afs_cell *afs_alloc_cell(s
 		_leave(" = -ENAMETOOLONG");
 		return ERR_PTR(-ENAMETOOLONG);
 	}
-	if (namelen == 5 && memcmp(name, "@cell", 5) == 0)
+
+	/* Prohibit cell names that contain unprintable chars, '/' and '@' or
+	 * that begin with a dot.  This also precludes "@cell".
+	 */
+	if (name[0] == '.')
 		return ERR_PTR(-EINVAL);
+	for (i = 0; i < namelen; i++) {
+		char ch = name[i];
+		if (!isprint(ch) || ch == '/' || ch == '@')
+			return ERR_PTR(-EINVAL);
+	}
 
 	_enter("%*.*s,%s", namelen, namelen, name, addresses);
 
diff -druNp --no-dereference linux-libre-5.4.15-gnu/fs/ceph/mds_client.c linux-libre-5.4.16-gnu/fs/ceph/mds_client.c
--- linux-libre-5.4.15-gnu/fs/ceph/mds_client.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/fs/ceph/mds_client.c	2020-01-29 10:45:34.000000000 -0500
@@ -708,8 +708,10 @@ void ceph_mdsc_release_request(struct kr
 		/* avoid calling iput_final() in mds dispatch threads */
 		ceph_async_iput(req->r_inode);
 	}
-	if (req->r_parent)
+	if (req->r_parent) {
 		ceph_put_cap_refs(ceph_inode(req->r_parent), CEPH_CAP_PIN);
+		ceph_async_iput(req->r_parent);
+	}
 	ceph_async_iput(req->r_target_inode);
 	if (req->r_dentry)
 		dput(req->r_dentry);
@@ -2670,8 +2672,10 @@ int ceph_mdsc_submit_request(struct ceph
 	/* take CAP_PIN refs for r_inode, r_parent, r_old_dentry */
 	if (req->r_inode)
 		ceph_get_cap_refs(ceph_inode(req->r_inode), CEPH_CAP_PIN);
-	if (req->r_parent)
+	if (req->r_parent) {
 		ceph_get_cap_refs(ceph_inode(req->r_parent), CEPH_CAP_PIN);
+		ihold(req->r_parent);
+	}
 	if (req->r_old_dentry_dir)
 		ceph_get_cap_refs(ceph_inode(req->r_old_dentry_dir),
 				  CEPH_CAP_PIN);
diff -druNp --no-dereference linux-libre-5.4.15-gnu/fs/io_uring.c linux-libre-5.4.16-gnu/fs/io_uring.c
--- linux-libre-5.4.15-gnu/fs/io_uring.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/fs/io_uring.c	2020-01-29 10:45:34.000000000 -0500
@@ -3716,12 +3716,6 @@ SYSCALL_DEFINE6(io_uring_enter, unsigned
 			wake_up(&ctx->sqo_wait);
 		submitted = to_submit;
 	} else if (to_submit) {
-		if (current->mm != ctx->sqo_mm ||
-		    current_cred() != ctx->creds) {
-			ret = -EPERM;
-			goto out;
-		}
-
 		to_submit = min(to_submit, ctx->sq_entries);
 
 		mutex_lock(&ctx->uring_lock);
diff -druNp --no-dereference linux-libre-5.4.15-gnu/fs/namei.c linux-libre-5.4.16-gnu/fs/namei.c
--- linux-libre-5.4.15-gnu/fs/namei.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/fs/namei.c	2020-01-29 10:45:34.000000000 -0500
@@ -1001,7 +1001,8 @@ static int may_linkat(struct path *link)
  * may_create_in_sticky - Check whether an O_CREAT open in a sticky directory
  *			  should be allowed, or not, on files that already
  *			  exist.
- * @dir: the sticky parent directory
+ * @dir_mode: mode bits of directory
+ * @dir_uid: owner of directory
  * @inode: the inode of the file to open
  *
  * Block an O_CREAT open of a FIFO (or a regular file) when:
@@ -1017,18 +1018,18 @@ static int may_linkat(struct path *link)
  *
  * Returns 0 if the open is allowed, -ve on error.
  */
-static int may_create_in_sticky(struct dentry * const dir,
+static int may_create_in_sticky(umode_t dir_mode, kuid_t dir_uid,
 				struct inode * const inode)
 {
 	if ((!sysctl_protected_fifos && S_ISFIFO(inode->i_mode)) ||
 	    (!sysctl_protected_regular && S_ISREG(inode->i_mode)) ||
-	    likely(!(dir->d_inode->i_mode & S_ISVTX)) ||
-	    uid_eq(inode->i_uid, dir->d_inode->i_uid) ||
+	    likely(!(dir_mode & S_ISVTX)) ||
+	    uid_eq(inode->i_uid, dir_uid) ||
 	    uid_eq(current_fsuid(), inode->i_uid))
 		return 0;
 
-	if (likely(dir->d_inode->i_mode & 0002) ||
-	    (dir->d_inode->i_mode & 0020 &&
+	if (likely(dir_mode & 0002) ||
+	    (dir_mode & 0020 &&
 	     ((sysctl_protected_fifos >= 2 && S_ISFIFO(inode->i_mode)) ||
 	      (sysctl_protected_regular >= 2 && S_ISREG(inode->i_mode))))) {
 		return -EACCES;
@@ -3248,6 +3249,8 @@ static int do_last(struct nameidata *nd,
 		   struct file *file, const struct open_flags *op)
 {
 	struct dentry *dir = nd->path.dentry;
+	kuid_t dir_uid = dir->d_inode->i_uid;
+	umode_t dir_mode = dir->d_inode->i_mode;
 	int open_flag = op->open_flag;
 	bool will_truncate = (open_flag & O_TRUNC) != 0;
 	bool got_write = false;
@@ -3383,7 +3386,7 @@ finish_open:
 		error = -EISDIR;
 		if (d_is_dir(nd->path.dentry))
 			goto out;
-		error = may_create_in_sticky(dir,
+		error = may_create_in_sticky(dir_mode, dir_uid,
 					     d_backing_inode(nd->path.dentry));
 		if (unlikely(error))
 			goto out;
diff -druNp --no-dereference linux-libre-5.4.15-gnu/fs/readdir.c linux-libre-5.4.16-gnu/fs/readdir.c
--- linux-libre-5.4.15-gnu/fs/readdir.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/fs/readdir.c	2020-01-29 10:45:34.000000000 -0500
@@ -102,10 +102,14 @@ EXPORT_SYMBOL(iterate_dir);
  * filename length, and the above "soft error" worry means
  * that it's probably better left alone until we have that
  * issue clarified.
+ *
+ * Note the PATH_MAX check - it's arbitrary but the real
+ * kernel limit on a possible path component, not NAME_MAX,
+ * which is the technical standard limit.
  */
 static int verify_dirent_name(const char *name, int len)
 {
-	if (!len)
+	if (len <= 0 || len >= PATH_MAX)
 		return -EIO;
 	if (memchr(name, '/', len))
 		return -EIO;
@@ -206,7 +210,7 @@ struct linux_dirent {
 struct getdents_callback {
 	struct dir_context ctx;
 	struct linux_dirent __user * current_dir;
-	struct linux_dirent __user * previous;
+	int prev_reclen;
 	int count;
 	int error;
 };
@@ -214,12 +218,13 @@ struct getdents_callback {
 static int filldir(struct dir_context *ctx, const char *name, int namlen,
 		   loff_t offset, u64 ino, unsigned int d_type)
 {
-	struct linux_dirent __user * dirent;
+	struct linux_dirent __user *dirent, *prev;
 	struct getdents_callback *buf =
 		container_of(ctx, struct getdents_callback, ctx);
 	unsigned long d_ino;
 	int reclen = ALIGN(offsetof(struct linux_dirent, d_name) + namlen + 2,
 		sizeof(long));
+	int prev_reclen;
 
 	buf->error = verify_dirent_name(name, namlen);
 	if (unlikely(buf->error))
@@ -232,28 +237,24 @@ static int filldir(struct dir_context *c
 		buf->error = -EOVERFLOW;
 		return -EOVERFLOW;
 	}
-	dirent = buf->previous;
-	if (dirent && signal_pending(current))
+	prev_reclen = buf->prev_reclen;
+	if (prev_reclen && signal_pending(current))
 		return -EINTR;
-
-	/*
-	 * Note! This range-checks 'previous' (which may be NULL).
-	 * The real range was checked in getdents
-	 */
-	if (!user_access_begin(dirent, sizeof(*dirent)))
-		goto efault;
-	if (dirent)
-		unsafe_put_user(offset, &dirent->d_off, efault_end);
 	dirent = buf->current_dir;
+	prev = (void __user *) dirent - prev_reclen;
+	if (!user_access_begin(prev, reclen + prev_reclen))
+		goto efault;
+
+	/* This might be 'dirent->d_off', but if so it will get overwritten */
+	unsafe_put_user(offset, &prev->d_off, efault_end);
 	unsafe_put_user(d_ino, &dirent->d_ino, efault_end);
 	unsafe_put_user(reclen, &dirent->d_reclen, efault_end);
 	unsafe_put_user(d_type, (char __user *) dirent + reclen - 1, efault_end);
 	unsafe_copy_dirent_name(dirent->d_name, name, namlen, efault_end);
 	user_access_end();
 
-	buf->previous = dirent;
-	dirent = (void __user *)dirent + reclen;
-	buf->current_dir = dirent;
+	buf->current_dir = (void __user *)dirent + reclen;
+	buf->prev_reclen = reclen;
 	buf->count -= reclen;
 	return 0;
 efault_end:
@@ -267,7 +268,6 @@ SYSCALL_DEFINE3(getdents, unsigned int,
 		struct linux_dirent __user *, dirent, unsigned int, count)
 {
 	struct fd f;
-	struct linux_dirent __user * lastdirent;
 	struct getdents_callback buf = {
 		.ctx.actor = filldir,
 		.count = count,
@@ -285,8 +285,10 @@ SYSCALL_DEFINE3(getdents, unsigned int,
 	error = iterate_dir(f.file, &buf.ctx);
 	if (error >= 0)
 		error = buf.error;
-	lastdirent = buf.previous;
-	if (lastdirent) {
+	if (buf.prev_reclen) {
+		struct linux_dirent __user * lastdirent;
+		lastdirent = (void __user *)buf.current_dir - buf.prev_reclen;
+
 		if (put_user(buf.ctx.pos, &lastdirent->d_off))
 			error = -EFAULT;
 		else
@@ -299,7 +301,7 @@ SYSCALL_DEFINE3(getdents, unsigned int,
 struct getdents_callback64 {
 	struct dir_context ctx;
 	struct linux_dirent64 __user * current_dir;
-	struct linux_dirent64 __user * previous;
+	int prev_reclen;
 	int count;
 	int error;
 };
@@ -307,11 +309,12 @@ struct getdents_callback64 {
 static int filldir64(struct dir_context *ctx, const char *name, int namlen,
 		     loff_t offset, u64 ino, unsigned int d_type)
 {
-	struct linux_dirent64 __user *dirent;
+	struct linux_dirent64 __user *dirent, *prev;
 	struct getdents_callback64 *buf =
 		container_of(ctx, struct getdents_callback64, ctx);
 	int reclen = ALIGN(offsetof(struct linux_dirent64, d_name) + namlen + 1,
 		sizeof(u64));
+	int prev_reclen;
 
 	buf->error = verify_dirent_name(name, namlen);
 	if (unlikely(buf->error))
@@ -319,30 +322,27 @@ static int filldir64(struct dir_context
 	buf->error = -EINVAL;	/* only used if we fail.. */
 	if (reclen > buf->count)
 		return -EINVAL;
-	dirent = buf->previous;
-	if (dirent && signal_pending(current))
+	prev_reclen = buf->prev_reclen;
+	if (prev_reclen && signal_pending(current))
 		return -EINTR;
-
-	/*
-	 * Note! This range-checks 'previous' (which may be NULL).
-	 * The real range was checked in getdents
-	 */
-	if (!user_access_begin(dirent, sizeof(*dirent)))
-		goto efault;
-	if (dirent)
-		unsafe_put_user(offset, &dirent->d_off, efault_end);
 	dirent = buf->current_dir;
+	prev = (void __user *)dirent - prev_reclen;
+	if (!user_access_begin(prev, reclen + prev_reclen))
+		goto efault;
+
+	/* This might be 'dirent->d_off', but if so it will get overwritten */
+	unsafe_put_user(offset, &prev->d_off, efault_end);
 	unsafe_put_user(ino, &dirent->d_ino, efault_end);
 	unsafe_put_user(reclen, &dirent->d_reclen, efault_end);
 	unsafe_put_user(d_type, &dirent->d_type, efault_end);
 	unsafe_copy_dirent_name(dirent->d_name, name, namlen, efault_end);
 	user_access_end();
 
-	buf->previous = dirent;
-	dirent = (void __user *)dirent + reclen;
-	buf->current_dir = dirent;
+	buf->prev_reclen = reclen;
+	buf->current_dir = (void __user *)dirent + reclen;
 	buf->count -= reclen;
 	return 0;
+
 efault_end:
 	user_access_end();
 efault:
@@ -354,7 +354,6 @@ int ksys_getdents64(unsigned int fd, str
 		    unsigned int count)
 {
 	struct fd f;
-	struct linux_dirent64 __user * lastdirent;
 	struct getdents_callback64 buf = {
 		.ctx.actor = filldir64,
 		.count = count,
@@ -372,9 +371,11 @@ int ksys_getdents64(unsigned int fd, str
 	error = iterate_dir(f.file, &buf.ctx);
 	if (error >= 0)
 		error = buf.error;
-	lastdirent = buf.previous;
-	if (lastdirent) {
+	if (buf.prev_reclen) {
+		struct linux_dirent64 __user * lastdirent;
 		typeof(lastdirent->d_off) d_off = buf.ctx.pos;
+
+		lastdirent = (void __user *) buf.current_dir - buf.prev_reclen;
 		if (__put_user(d_off, &lastdirent->d_off))
 			error = -EFAULT;
 		else
diff -druNp --no-dereference linux-libre-5.4.15-gnu/include/linux/netdevice.h linux-libre-5.4.16-gnu/include/linux/netdevice.h
--- linux-libre-5.4.15-gnu/include/linux/netdevice.h	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/include/linux/netdevice.h	2020-01-29 10:45:34.000000000 -0500
@@ -3666,6 +3666,8 @@ int dev_set_alias(struct net_device *, c
 int dev_get_alias(const struct net_device *, char *, size_t);
 int dev_change_net_namespace(struct net_device *, struct net *, const char *);
 int __dev_set_mtu(struct net_device *, int);
+int dev_validate_mtu(struct net_device *dev, int mtu,
+		     struct netlink_ext_ack *extack);
 int dev_set_mtu_ext(struct net_device *dev, int mtu,
 		    struct netlink_ext_ack *extack);
 int dev_set_mtu(struct net_device *, int);
diff -druNp --no-dereference linux-libre-5.4.15-gnu/include/linux/netfilter/ipset/ip_set.h linux-libre-5.4.16-gnu/include/linux/netfilter/ipset/ip_set.h
--- linux-libre-5.4.15-gnu/include/linux/netfilter/ipset/ip_set.h	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/include/linux/netfilter/ipset/ip_set.h	2020-01-29 10:45:34.000000000 -0500
@@ -445,13 +445,6 @@ ip6addrptr(const struct sk_buff *skb, bo
 	       sizeof(*addr));
 }
 
-/* Calculate the bytes required to store the inclusive range of a-b */
-static inline int
-bitmap_bytes(u32 a, u32 b)
-{
-	return 4 * ((((b - a + 8) / 8) + 3) / 4);
-}
-
 /* How often should the gc be run by default */
 #define IPSET_GC_TIME			(3 * 60)
 
diff -druNp --no-dereference linux-libre-5.4.15-gnu/include/linux/netfilter/nfnetlink.h linux-libre-5.4.16-gnu/include/linux/netfilter/nfnetlink.h
--- linux-libre-5.4.15-gnu/include/linux/netfilter/nfnetlink.h	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/include/linux/netfilter/nfnetlink.h	2020-01-29 10:45:34.000000000 -0500
@@ -31,7 +31,7 @@ struct nfnetlink_subsystem {
 	const struct nfnl_callback *cb;	/* callback for individual types */
 	struct module *owner;
 	int (*commit)(struct net *net, struct sk_buff *skb);
-	int (*abort)(struct net *net, struct sk_buff *skb);
+	int (*abort)(struct net *net, struct sk_buff *skb, bool autoload);
 	void (*cleanup)(struct net *net);
 	bool (*valid_genid)(struct net *net, u32 genid);
 };
diff -druNp --no-dereference linux-libre-5.4.15-gnu/include/net/netns/nftables.h linux-libre-5.4.16-gnu/include/net/netns/nftables.h
--- linux-libre-5.4.15-gnu/include/net/netns/nftables.h	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/include/net/netns/nftables.h	2020-01-29 10:45:34.000000000 -0500
@@ -7,6 +7,7 @@
 struct netns_nftables {
 	struct list_head	tables;
 	struct list_head	commit_list;
+	struct list_head	module_list;
 	struct mutex		commit_mutex;
 	unsigned int		base_seq;
 	u8			gencursor;
diff -druNp --no-dereference linux-libre-5.4.15-gnu/include/trace/events/xen.h linux-libre-5.4.16-gnu/include/trace/events/xen.h
--- linux-libre-5.4.15-gnu/include/trace/events/xen.h	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/include/trace/events/xen.h	2020-01-29 10:45:34.000000000 -0500
@@ -66,7 +66,11 @@ TRACE_EVENT(xen_mc_callback,
 	    TP_PROTO(xen_mc_callback_fn_t fn, void *data),
 	    TP_ARGS(fn, data),
 	    TP_STRUCT__entry(
-		    __field(xen_mc_callback_fn_t, fn)
+		    /*
+		     * Use field_struct to avoid is_signed_type()
+		     * comparison of a function pointer.
+		     */
+		    __field_struct(xen_mc_callback_fn_t, fn)
 		    __field(void *, data)
 		    ),
 	    TP_fast_assign(
diff -druNp --no-dereference linux-libre-5.4.15-gnu/kernel/power/snapshot.c linux-libre-5.4.16-gnu/kernel/power/snapshot.c
--- linux-libre-5.4.15-gnu/kernel/power/snapshot.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/kernel/power/snapshot.c	2020-01-29 10:45:34.000000000 -0500
@@ -1147,24 +1147,24 @@ void free_basic_memory_bitmaps(void)
 
 void clear_free_pages(void)
 {
-#ifdef CONFIG_PAGE_POISONING_ZERO
 	struct memory_bitmap *bm = free_pages_map;
 	unsigned long pfn;
 
 	if (WARN_ON(!(free_pages_map)))
 		return;
 
-	memory_bm_position_reset(bm);
-	pfn = memory_bm_next_pfn(bm);
-	while (pfn != BM_END_OF_MAP) {
-		if (pfn_valid(pfn))
-			clear_highpage(pfn_to_page(pfn));
-
+	if (IS_ENABLED(CONFIG_PAGE_POISONING_ZERO) || want_init_on_free()) {
+		memory_bm_position_reset(bm);
 		pfn = memory_bm_next_pfn(bm);
+		while (pfn != BM_END_OF_MAP) {
+			if (pfn_valid(pfn))
+				clear_highpage(pfn_to_page(pfn));
+
+			pfn = memory_bm_next_pfn(bm);
+		}
+		memory_bm_position_reset(bm);
+		pr_info("free pages cleared after restore\n");
 	}
-	memory_bm_position_reset(bm);
-	pr_info("free pages cleared after restore\n");
-#endif /* PAGE_POISONING_ZERO */
 }
 
 /**
diff -druNp --no-dereference linux-libre-5.4.15-gnu/kernel/trace/trace.c linux-libre-5.4.16-gnu/kernel/trace/trace.c
--- linux-libre-5.4.15-gnu/kernel/trace/trace.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/kernel/trace/trace.c	2020-01-29 10:45:34.000000000 -0500
@@ -9270,6 +9270,11 @@ __init static int tracing_set_default_cl
 {
 	/* sched_clock_stable() is determined in late_initcall */
 	if (!trace_boot_clock && !sched_clock_stable()) {
+		if (security_locked_down(LOCKDOWN_TRACEFS)) {
+			pr_warn("Can not set tracing clock due to lockdown\n");
+			return -EPERM;
+		}
+
 		printk(KERN_WARNING
 		       "Unstable clock detected, switching default tracing clock to \"global\"\n"
 		       "If you want to keep using the local clock, then add:\n"
diff -druNp --no-dereference linux-libre-5.4.15-gnu/kernel/trace/trace_events_hist.c linux-libre-5.4.16-gnu/kernel/trace/trace_events_hist.c
--- linux-libre-5.4.15-gnu/kernel/trace/trace_events_hist.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/kernel/trace/trace_events_hist.c	2020-01-29 10:45:34.000000000 -0500
@@ -116,6 +116,7 @@ struct hist_field {
 	struct ftrace_event_field	*field;
 	unsigned long			flags;
 	hist_field_fn_t			fn;
+	unsigned int			ref;
 	unsigned int			size;
 	unsigned int			offset;
 	unsigned int                    is_signed;
@@ -1766,11 +1767,13 @@ static struct hist_field *find_var(struc
 	struct event_trigger_data *test;
 	struct hist_field *hist_field;
 
+	lockdep_assert_held(&event_mutex);
+
 	hist_field = find_var_field(hist_data, var_name);
 	if (hist_field)
 		return hist_field;
 
-	list_for_each_entry_rcu(test, &file->triggers, list) {
+	list_for_each_entry(test, &file->triggers, list) {
 		if (test->cmd_ops->trigger_type == ETT_EVENT_HIST) {
 			test_data = test->private_data;
 			hist_field = find_var_field(test_data, var_name);
@@ -1820,7 +1823,9 @@ static struct hist_field *find_file_var(
 	struct event_trigger_data *test;
 	struct hist_field *hist_field;
 
-	list_for_each_entry_rcu(test, &file->triggers, list) {
+	lockdep_assert_held(&event_mutex);
+
+	list_for_each_entry(test, &file->triggers, list) {
 		if (test->cmd_ops->trigger_type == ETT_EVENT_HIST) {
 			test_data = test->private_data;
 			hist_field = find_var_field(test_data, var_name);
@@ -2423,8 +2428,16 @@ static int contains_operator(char *str)
 	return field_op;
 }
 
+static void get_hist_field(struct hist_field *hist_field)
+{
+	hist_field->ref++;
+}
+
 static void __destroy_hist_field(struct hist_field *hist_field)
 {
+	if (--hist_field->ref > 1)
+		return;
+
 	kfree(hist_field->var.name);
 	kfree(hist_field->name);
 	kfree(hist_field->type);
@@ -2466,6 +2479,8 @@ static struct hist_field *create_hist_fi
 	if (!hist_field)
 		return NULL;
 
+	hist_field->ref = 1;
+
 	hist_field->hist_data = hist_data;
 
 	if (flags & HIST_FIELD_FL_EXPR || flags & HIST_FIELD_FL_ALIAS)
@@ -2661,6 +2676,17 @@ static struct hist_field *create_var_ref
 {
 	unsigned long flags = HIST_FIELD_FL_VAR_REF;
 	struct hist_field *ref_field;
+	int i;
+
+	/* Check if the variable already exists */
+	for (i = 0; i < hist_data->n_var_refs; i++) {
+		ref_field = hist_data->var_refs[i];
+		if (ref_field->var.idx == var_field->var.idx &&
+		    ref_field->var.hist_data == var_field->hist_data) {
+			get_hist_field(ref_field);
+			return ref_field;
+		}
+	}
 
 	ref_field = create_hist_field(var_field->hist_data, NULL, flags, NULL);
 	if (ref_field) {
@@ -3115,7 +3141,9 @@ static char *find_trigger_filter(struct
 {
 	struct event_trigger_data *test;
 
-	list_for_each_entry_rcu(test, &file->triggers, list) {
+	lockdep_assert_held(&event_mutex);
+
+	list_for_each_entry(test, &file->triggers, list) {
 		if (test->cmd_ops->trigger_type == ETT_EVENT_HIST) {
 			if (test->private_data == hist_data)
 				return test->filter_str;
@@ -3166,9 +3194,11 @@ find_compatible_hist(struct hist_trigger
 	struct event_trigger_data *test;
 	unsigned int n_keys;
 
+	lockdep_assert_held(&event_mutex);
+
 	n_keys = target_hist_data->n_fields - target_hist_data->n_vals;
 
-	list_for_each_entry_rcu(test, &file->triggers, list) {
+	list_for_each_entry(test, &file->triggers, list) {
 		if (test->cmd_ops->trigger_type == ETT_EVENT_HIST) {
 			hist_data = test->private_data;
 
@@ -5528,7 +5558,7 @@ static int hist_show(struct seq_file *m,
 		goto out_unlock;
 	}
 
-	list_for_each_entry_rcu(data, &event_file->triggers, list) {
+	list_for_each_entry(data, &event_file->triggers, list) {
 		if (data->cmd_ops->trigger_type == ETT_EVENT_HIST)
 			hist_trigger_show(m, data, n++);
 	}
@@ -5921,7 +5951,9 @@ static int hist_register_trigger(char *g
 	if (hist_data->attrs->name && !named_data)
 		goto new;
 
-	list_for_each_entry_rcu(test, &file->triggers, list) {
+	lockdep_assert_held(&event_mutex);
+
+	list_for_each_entry(test, &file->triggers, list) {
 		if (test->cmd_ops->trigger_type == ETT_EVENT_HIST) {
 			if (!hist_trigger_match(data, test, named_data, false))
 				continue;
@@ -6005,10 +6037,12 @@ static bool have_hist_trigger_match(stru
 	struct event_trigger_data *test, *named_data = NULL;
 	bool match = false;
 
+	lockdep_assert_held(&event_mutex);
+
 	if (hist_data->attrs->name)
 		named_data = find_named_trigger(hist_data->attrs->name);
 
-	list_for_each_entry_rcu(test, &file->triggers, list) {
+	list_for_each_entry(test, &file->triggers, list) {
 		if (test->cmd_ops->trigger_type == ETT_EVENT_HIST) {
 			if (hist_trigger_match(data, test, named_data, false)) {
 				match = true;
@@ -6026,10 +6060,12 @@ static bool hist_trigger_check_refs(stru
 	struct hist_trigger_data *hist_data = data->private_data;
 	struct event_trigger_data *test, *named_data = NULL;
 
+	lockdep_assert_held(&event_mutex);
+
 	if (hist_data->attrs->name)
 		named_data = find_named_trigger(hist_data->attrs->name);
 
-	list_for_each_entry_rcu(test, &file->triggers, list) {
+	list_for_each_entry(test, &file->triggers, list) {
 		if (test->cmd_ops->trigger_type == ETT_EVENT_HIST) {
 			if (!hist_trigger_match(data, test, named_data, false))
 				continue;
@@ -6051,10 +6087,12 @@ static void hist_unregister_trigger(char
 	struct event_trigger_data *test, *named_data = NULL;
 	bool unregistered = false;
 
+	lockdep_assert_held(&event_mutex);
+
 	if (hist_data->attrs->name)
 		named_data = find_named_trigger(hist_data->attrs->name);
 
-	list_for_each_entry_rcu(test, &file->triggers, list) {
+	list_for_each_entry(test, &file->triggers, list) {
 		if (test->cmd_ops->trigger_type == ETT_EVENT_HIST) {
 			if (!hist_trigger_match(data, test, named_data, false))
 				continue;
@@ -6080,7 +6118,9 @@ static bool hist_file_check_refs(struct
 	struct hist_trigger_data *hist_data;
 	struct event_trigger_data *test;
 
-	list_for_each_entry_rcu(test, &file->triggers, list) {
+	lockdep_assert_held(&event_mutex);
+
+	list_for_each_entry(test, &file->triggers, list) {
 		if (test->cmd_ops->trigger_type == ETT_EVENT_HIST) {
 			hist_data = test->private_data;
 			if (check_var_refs(hist_data))
@@ -6323,7 +6363,8 @@ hist_enable_trigger(struct event_trigger
 	struct enable_trigger_data *enable_data = data->private_data;
 	struct event_trigger_data *test;
 
-	list_for_each_entry_rcu(test, &enable_data->file->triggers, list) {
+	list_for_each_entry_rcu(test, &enable_data->file->triggers, list,
+				lockdep_is_held(&event_mutex)) {
 		if (test->cmd_ops->trigger_type == ETT_EVENT_HIST) {
 			if (enable_data->enable)
 				test->paused = false;
diff -druNp --no-dereference linux-libre-5.4.15-gnu/kernel/trace/trace_events_trigger.c linux-libre-5.4.16-gnu/kernel/trace/trace_events_trigger.c
--- linux-libre-5.4.15-gnu/kernel/trace/trace_events_trigger.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/kernel/trace/trace_events_trigger.c	2020-01-29 10:45:34.000000000 -0500
@@ -501,7 +501,9 @@ void update_cond_flag(struct trace_event
 	struct event_trigger_data *data;
 	bool set_cond = false;
 
-	list_for_each_entry_rcu(data, &file->triggers, list) {
+	lockdep_assert_held(&event_mutex);
+
+	list_for_each_entry(data, &file->triggers, list) {
 		if (data->filter || event_command_post_trigger(data->cmd_ops) ||
 		    event_command_needs_rec(data->cmd_ops)) {
 			set_cond = true;
@@ -536,7 +538,9 @@ static int register_trigger(char *glob,
 	struct event_trigger_data *test;
 	int ret = 0;
 
-	list_for_each_entry_rcu(test, &file->triggers, list) {
+	lockdep_assert_held(&event_mutex);
+
+	list_for_each_entry(test, &file->triggers, list) {
 		if (test->cmd_ops->trigger_type == data->cmd_ops->trigger_type) {
 			ret = -EEXIST;
 			goto out;
@@ -581,7 +585,9 @@ static void unregister_trigger(char *glo
 	struct event_trigger_data *data;
 	bool unregistered = false;
 
-	list_for_each_entry_rcu(data, &file->triggers, list) {
+	lockdep_assert_held(&event_mutex);
+
+	list_for_each_entry(data, &file->triggers, list) {
 		if (data->cmd_ops->trigger_type == test->cmd_ops->trigger_type) {
 			unregistered = true;
 			list_del_rcu(&data->list);
@@ -1497,7 +1503,9 @@ int event_enable_register_trigger(char *
 	struct event_trigger_data *test;
 	int ret = 0;
 
-	list_for_each_entry_rcu(test, &file->triggers, list) {
+	lockdep_assert_held(&event_mutex);
+
+	list_for_each_entry(test, &file->triggers, list) {
 		test_enable_data = test->private_data;
 		if (test_enable_data &&
 		    (test->cmd_ops->trigger_type ==
@@ -1537,7 +1545,9 @@ void event_enable_unregister_trigger(cha
 	struct event_trigger_data *data;
 	bool unregistered = false;
 
-	list_for_each_entry_rcu(data, &file->triggers, list) {
+	lockdep_assert_held(&event_mutex);
+
+	list_for_each_entry(data, &file->triggers, list) {
 		enable_data = data->private_data;
 		if (enable_data &&
 		    (data->cmd_ops->trigger_type ==
diff -druNp --no-dereference linux-libre-5.4.15-gnu/kernel/trace/trace_kprobe.c linux-libre-5.4.16-gnu/kernel/trace/trace_kprobe.c
--- linux-libre-5.4.15-gnu/kernel/trace/trace_kprobe.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/kernel/trace/trace_kprobe.c	2020-01-29 10:45:34.000000000 -0500
@@ -290,7 +290,7 @@ static struct trace_kprobe *alloc_trace_
 	INIT_HLIST_NODE(&tk->rp.kp.hlist);
 	INIT_LIST_HEAD(&tk->rp.kp.list);
 
-	ret = trace_probe_init(&tk->tp, event, group);
+	ret = trace_probe_init(&tk->tp, event, group, 0);
 	if (ret < 0)
 		goto error;
 
diff -druNp --no-dereference linux-libre-5.4.15-gnu/kernel/trace/trace_probe.c linux-libre-5.4.16-gnu/kernel/trace/trace_probe.c
--- linux-libre-5.4.15-gnu/kernel/trace/trace_probe.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/kernel/trace/trace_probe.c	2020-01-29 10:45:34.000000000 -0500
@@ -984,7 +984,7 @@ void trace_probe_cleanup(struct trace_pr
 }
 
 int trace_probe_init(struct trace_probe *tp, const char *event,
-		     const char *group)
+		     const char *group, size_t event_data_size)
 {
 	struct trace_event_call *call;
 	int ret = 0;
@@ -992,7 +992,8 @@ int trace_probe_init(struct trace_probe
 	if (!event || !group)
 		return -EINVAL;
 
-	tp->event = kzalloc(sizeof(struct trace_probe_event), GFP_KERNEL);
+	tp->event = kzalloc(sizeof(struct trace_probe_event) + event_data_size,
+			    GFP_KERNEL);
 	if (!tp->event)
 		return -ENOMEM;
 
diff -druNp --no-dereference linux-libre-5.4.15-gnu/kernel/trace/trace_probe.h linux-libre-5.4.16-gnu/kernel/trace/trace_probe.h
--- linux-libre-5.4.15-gnu/kernel/trace/trace_probe.h	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/kernel/trace/trace_probe.h	2020-01-29 10:45:34.000000000 -0500
@@ -230,6 +230,7 @@ struct trace_probe_event {
 	struct trace_event_call		call;
 	struct list_head 		files;
 	struct list_head		probes;
+	char				data[0];
 };
 
 struct trace_probe {
@@ -322,7 +323,7 @@ static inline bool trace_probe_has_singl
 }
 
 int trace_probe_init(struct trace_probe *tp, const char *event,
-		     const char *group);
+		     const char *group, size_t event_data_size);
 void trace_probe_cleanup(struct trace_probe *tp);
 int trace_probe_append(struct trace_probe *tp, struct trace_probe *to);
 void trace_probe_unlink(struct trace_probe *tp);
diff -druNp --no-dereference linux-libre-5.4.15-gnu/kernel/trace/trace_uprobe.c linux-libre-5.4.16-gnu/kernel/trace/trace_uprobe.c
--- linux-libre-5.4.15-gnu/kernel/trace/trace_uprobe.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/kernel/trace/trace_uprobe.c	2020-01-29 10:45:34.000000000 -0500
@@ -60,7 +60,6 @@ static struct dyn_event_operations trace
  */
 struct trace_uprobe {
 	struct dyn_event		devent;
-	struct trace_uprobe_filter	filter;
 	struct uprobe_consumer		consumer;
 	struct path			path;
 	struct inode			*inode;
@@ -264,6 +263,14 @@ process_fetch_insn(struct fetch_insn *co
 }
 NOKPROBE_SYMBOL(process_fetch_insn)
 
+static struct trace_uprobe_filter *
+trace_uprobe_get_filter(struct trace_uprobe *tu)
+{
+	struct trace_probe_event *event = tu->tp.event;
+
+	return (struct trace_uprobe_filter *)&event->data[0];
+}
+
 static inline void init_trace_uprobe_filter(struct trace_uprobe_filter *filter)
 {
 	rwlock_init(&filter->rwlock);
@@ -351,7 +358,8 @@ alloc_trace_uprobe(const char *group, co
 	if (!tu)
 		return ERR_PTR(-ENOMEM);
 
-	ret = trace_probe_init(&tu->tp, event, group);
+	ret = trace_probe_init(&tu->tp, event, group,
+				sizeof(struct trace_uprobe_filter));
 	if (ret < 0)
 		goto error;
 
@@ -359,7 +367,7 @@ alloc_trace_uprobe(const char *group, co
 	tu->consumer.handler = uprobe_dispatcher;
 	if (is_ret)
 		tu->consumer.ret_handler = uretprobe_dispatcher;
-	init_trace_uprobe_filter(&tu->filter);
+	init_trace_uprobe_filter(trace_uprobe_get_filter(tu));
 	return tu;
 
 error:
@@ -1067,13 +1075,14 @@ static void __probe_event_disable(struct
 	struct trace_probe *pos;
 	struct trace_uprobe *tu;
 
+	tu = container_of(tp, struct trace_uprobe, tp);
+	WARN_ON(!uprobe_filter_is_empty(trace_uprobe_get_filter(tu)));
+
 	list_for_each_entry(pos, trace_probe_probe_list(tp), list) {
 		tu = container_of(pos, struct trace_uprobe, tp);
 		if (!tu->inode)
 			continue;
 
-		WARN_ON(!uprobe_filter_is_empty(&tu->filter));
-
 		uprobe_unregister(tu->inode, tu->offset, &tu->consumer);
 		tu->inode = NULL;
 	}
@@ -1108,7 +1117,7 @@ static int probe_event_enable(struct tra
 	}
 
 	tu = container_of(tp, struct trace_uprobe, tp);
-	WARN_ON(!uprobe_filter_is_empty(&tu->filter));
+	WARN_ON(!uprobe_filter_is_empty(trace_uprobe_get_filter(tu)));
 
 	if (enabled)
 		return 0;
@@ -1205,39 +1214,39 @@ __uprobe_perf_filter(struct trace_uprobe
 }
 
 static inline bool
-uprobe_filter_event(struct trace_uprobe *tu, struct perf_event *event)
+trace_uprobe_filter_event(struct trace_uprobe_filter *filter,
+			  struct perf_event *event)
 {
-	return __uprobe_perf_filter(&tu->filter, event->hw.target->mm);
+	return __uprobe_perf_filter(filter, event->hw.target->mm);
 }
 
-static int uprobe_perf_close(struct trace_uprobe *tu, struct perf_event *event)
+static bool trace_uprobe_filter_remove(struct trace_uprobe_filter *filter,
+				       struct perf_event *event)
 {
 	bool done;
 
-	write_lock(&tu->filter.rwlock);
+	write_lock(&filter->rwlock);
 	if (event->hw.target) {
 		list_del(&event->hw.tp_list);
-		done = tu->filter.nr_systemwide ||
+		done = filter->nr_systemwide ||
 			(event->hw.target->flags & PF_EXITING) ||
-			uprobe_filter_event(tu, event);
+			trace_uprobe_filter_event(filter, event);
 	} else {
-		tu->filter.nr_systemwide--;
-		done = tu->filter.nr_systemwide;
+		filter->nr_systemwide--;
+		done = filter->nr_systemwide;
 	}
-	write_unlock(&tu->filter.rwlock);
-
-	if (!done)
-		return uprobe_apply(tu->inode, tu->offset, &tu->consumer, false);
+	write_unlock(&filter->rwlock);
 
-	return 0;
+	return done;
 }
 
-static int uprobe_perf_open(struct trace_uprobe *tu, struct perf_event *event)
+/* This returns true if the filter always covers target mm */
+static bool trace_uprobe_filter_add(struct trace_uprobe_filter *filter,
+				    struct perf_event *event)
 {
 	bool done;
-	int err;
 
-	write_lock(&tu->filter.rwlock);
+	write_lock(&filter->rwlock);
 	if (event->hw.target) {
 		/*
 		 * event->parent != NULL means copy_process(), we can avoid
@@ -1247,28 +1256,21 @@ static int uprobe_perf_open(struct trace
 		 * attr.enable_on_exec means that exec/mmap will install the
 		 * breakpoints we need.
 		 */
-		done = tu->filter.nr_systemwide ||
+		done = filter->nr_systemwide ||
 			event->parent || event->attr.enable_on_exec ||
-			uprobe_filter_event(tu, event);
-		list_add(&event->hw.tp_list, &tu->filter.perf_events);
+			trace_uprobe_filter_event(filter, event);
+		list_add(&event->hw.tp_list, &filter->perf_events);
 	} else {
-		done = tu->filter.nr_systemwide;
-		tu->filter.nr_systemwide++;
+		done = filter->nr_systemwide;
+		filter->nr_systemwide++;
 	}
-	write_unlock(&tu->filter.rwlock);
+	write_unlock(&filter->rwlock);
 
-	err = 0;
-	if (!done) {
-		err = uprobe_apply(tu->inode, tu->offset, &tu->consumer, true);
-		if (err)
-			uprobe_perf_close(tu, event);
-	}
-	return err;
+	return done;
 }
 
-static int uprobe_perf_multi_call(struct trace_event_call *call,
-				  struct perf_event *event,
-		int (*op)(struct trace_uprobe *tu, struct perf_event *event))
+static int uprobe_perf_close(struct trace_event_call *call,
+			     struct perf_event *event)
 {
 	struct trace_probe *pos, *tp;
 	struct trace_uprobe *tu;
@@ -1278,25 +1280,59 @@ static int uprobe_perf_multi_call(struct
 	if (WARN_ON_ONCE(!tp))
 		return -ENODEV;
 
+	tu = container_of(tp, struct trace_uprobe, tp);
+	if (trace_uprobe_filter_remove(trace_uprobe_get_filter(tu), event))
+		return 0;
+
 	list_for_each_entry(pos, trace_probe_probe_list(tp), list) {
 		tu = container_of(pos, struct trace_uprobe, tp);
-		ret = op(tu, event);
+		ret = uprobe_apply(tu->inode, tu->offset, &tu->consumer, false);
 		if (ret)
 			break;
 	}
 
 	return ret;
 }
+
+static int uprobe_perf_open(struct trace_event_call *call,
+			    struct perf_event *event)
+{
+	struct trace_probe *pos, *tp;
+	struct trace_uprobe *tu;
+	int err = 0;
+
+	tp = trace_probe_primary_from_call(call);
+	if (WARN_ON_ONCE(!tp))
+		return -ENODEV;
+
+	tu = container_of(tp, struct trace_uprobe, tp);
+	if (trace_uprobe_filter_add(trace_uprobe_get_filter(tu), event))
+		return 0;
+
+	list_for_each_entry(pos, trace_probe_probe_list(tp), list) {
+		err = uprobe_apply(tu->inode, tu->offset, &tu->consumer, true);
+		if (err) {
+			uprobe_perf_close(call, event);
+			break;
+		}
+	}
+
+	return err;
+}
+
 static bool uprobe_perf_filter(struct uprobe_consumer *uc,
 				enum uprobe_filter_ctx ctx, struct mm_struct *mm)
 {
+	struct trace_uprobe_filter *filter;
 	struct trace_uprobe *tu;
 	int ret;
 
 	tu = container_of(uc, struct trace_uprobe, consumer);
-	read_lock(&tu->filter.rwlock);
-	ret = __uprobe_perf_filter(&tu->filter, mm);
-	read_unlock(&tu->filter.rwlock);
+	filter = trace_uprobe_get_filter(tu);
+
+	read_lock(&filter->rwlock);
+	ret = __uprobe_perf_filter(filter, mm);
+	read_unlock(&filter->rwlock);
 
 	return ret;
 }
@@ -1419,10 +1455,10 @@ trace_uprobe_register(struct trace_event
 		return 0;
 
 	case TRACE_REG_PERF_OPEN:
-		return uprobe_perf_multi_call(event, data, uprobe_perf_open);
+		return uprobe_perf_open(event, data);
 
 	case TRACE_REG_PERF_CLOSE:
-		return uprobe_perf_multi_call(event, data, uprobe_perf_close);
+		return uprobe_perf_close(event, data);
 
 #endif
 	default:
diff -druNp --no-dereference linux-libre-5.4.15-gnu/lib/strncpy_from_user.c linux-libre-5.4.16-gnu/lib/strncpy_from_user.c
--- linux-libre-5.4.15-gnu/lib/strncpy_from_user.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/lib/strncpy_from_user.c	2020-01-29 10:45:34.000000000 -0500
@@ -30,13 +30,6 @@ static inline long do_strncpy_from_user(
 	const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
 	unsigned long res = 0;
 
-	/*
-	 * Truncate 'max' to the user-specified limit, so that
-	 * we only have one limit we need to check in the loop
-	 */
-	if (max > count)
-		max = count;
-
 	if (IS_UNALIGNED(src, dst))
 		goto byte_at_a_time;
 
@@ -114,6 +107,13 @@ long strncpy_from_user(char *dst, const
 		unsigned long max = max_addr - src_addr;
 		long retval;
 
+		/*
+		 * Truncate 'max' to the user-specified limit, so that
+		 * we only have one limit we need to check in the loop
+		 */
+		if (max > count)
+			max = count;
+
 		kasan_check_write(dst, count);
 		check_object_size(dst, count, false);
 		if (user_access_begin(src, max)) {
diff -druNp --no-dereference linux-libre-5.4.15-gnu/lib/strnlen_user.c linux-libre-5.4.16-gnu/lib/strnlen_user.c
--- linux-libre-5.4.15-gnu/lib/strnlen_user.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/lib/strnlen_user.c	2020-01-29 10:45:34.000000000 -0500
@@ -27,13 +27,6 @@ static inline long do_strnlen_user(const
 	unsigned long c;
 
 	/*
-	 * Truncate 'max' to the user-specified limit, so that
-	 * we only have one limit we need to check in the loop
-	 */
-	if (max > count)
-		max = count;
-
-	/*
 	 * Do everything aligned. But that means that we
 	 * need to also expand the maximum..
 	 */
@@ -109,6 +102,13 @@ long strnlen_user(const char __user *str
 		unsigned long max = max_addr - src_addr;
 		long retval;
 
+		/*
+		 * Truncate 'max' to the user-specified limit, so that
+		 * we only have one limit we need to check in the loop
+		 */
+		if (max > count)
+			max = count;
+
 		if (user_access_begin(str, max)) {
 			retval = do_strnlen_user(str, count, max);
 			user_access_end();
diff -druNp --no-dereference linux-libre-5.4.15-gnu/lib/test_xarray.c linux-libre-5.4.16-gnu/lib/test_xarray.c
--- linux-libre-5.4.15-gnu/lib/test_xarray.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/lib/test_xarray.c	2020-01-29 10:45:34.000000000 -0500
@@ -2,6 +2,7 @@
 /*
  * test_xarray.c: Test the XArray API
  * Copyright (c) 2017-2018 Microsoft Corporation
+ * Copyright (c) 2019-2020 Oracle
  * Author: Matthew Wilcox <willy@infradead.org>
  */
 
@@ -902,28 +903,34 @@ static noinline void check_store_iter(st
 	XA_BUG_ON(xa, !xa_empty(xa));
 }
 
-static noinline void check_multi_find(struct xarray *xa)
+static noinline void check_multi_find_1(struct xarray *xa, unsigned order)
 {
 #ifdef CONFIG_XARRAY_MULTI
+	unsigned long multi = 3 << order;
+	unsigned long next = 4 << order;
 	unsigned long index;
 
-	xa_store_order(xa, 12, 2, xa_mk_value(12), GFP_KERNEL);
-	XA_BUG_ON(xa, xa_store_index(xa, 16, GFP_KERNEL) != NULL);
+	xa_store_order(xa, multi, order, xa_mk_value(multi), GFP_KERNEL);
+	XA_BUG_ON(xa, xa_store_index(xa, next, GFP_KERNEL) != NULL);
+	XA_BUG_ON(xa, xa_store_index(xa, next + 1, GFP_KERNEL) != NULL);
 
 	index = 0;
 	XA_BUG_ON(xa, xa_find(xa, &index, ULONG_MAX, XA_PRESENT) !=
-			xa_mk_value(12));
-	XA_BUG_ON(xa, index != 12);
-	index = 13;
+			xa_mk_value(multi));
+	XA_BUG_ON(xa, index != multi);
+	index = multi + 1;
 	XA_BUG_ON(xa, xa_find(xa, &index, ULONG_MAX, XA_PRESENT) !=
-			xa_mk_value(12));
-	XA_BUG_ON(xa, (index < 12) || (index >= 16));
+			xa_mk_value(multi));
+	XA_BUG_ON(xa, (index < multi) || (index >= next));
 	XA_BUG_ON(xa, xa_find_after(xa, &index, ULONG_MAX, XA_PRESENT) !=
-			xa_mk_value(16));
-	XA_BUG_ON(xa, index != 16);
+			xa_mk_value(next));
+	XA_BUG_ON(xa, index != next);
+	XA_BUG_ON(xa, xa_find_after(xa, &index, next, XA_PRESENT) != NULL);
+	XA_BUG_ON(xa, index != next);
 
-	xa_erase_index(xa, 12);
-	xa_erase_index(xa, 16);
+	xa_erase_index(xa, multi);
+	xa_erase_index(xa, next);
+	xa_erase_index(xa, next + 1);
 	XA_BUG_ON(xa, !xa_empty(xa));
 #endif
 }
@@ -1046,12 +1053,33 @@ static noinline void check_find_3(struct
 	xa_destroy(xa);
 }
 
+static noinline void check_find_4(struct xarray *xa)
+{
+	unsigned long index = 0;
+	void *entry;
+
+	xa_store_index(xa, ULONG_MAX, GFP_KERNEL);
+
+	entry = xa_find_after(xa, &index, ULONG_MAX, XA_PRESENT);
+	XA_BUG_ON(xa, entry != xa_mk_index(ULONG_MAX));
+
+	entry = xa_find_after(xa, &index, ULONG_MAX, XA_PRESENT);
+	XA_BUG_ON(xa, entry);
+
+	xa_erase_index(xa, ULONG_MAX);
+}
+
 static noinline void check_find(struct xarray *xa)
 {
+	unsigned i;
+
 	check_find_1(xa);
 	check_find_2(xa);
 	check_find_3(xa);
-	check_multi_find(xa);
+	check_find_4(xa);
+
+	for (i = 2; i < 10; i++)
+		check_multi_find_1(xa, i);
 	check_multi_find_2(xa);
 }
 
diff -druNp --no-dereference linux-libre-5.4.15-gnu/lib/xarray.c linux-libre-5.4.16-gnu/lib/xarray.c
--- linux-libre-5.4.15-gnu/lib/xarray.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/lib/xarray.c	2020-01-29 10:45:34.000000000 -0500
@@ -1,7 +1,8 @@
 // SPDX-License-Identifier: GPL-2.0+
 /*
  * XArray implementation
- * Copyright (c) 2017 Microsoft Corporation
+ * Copyright (c) 2017-2018 Microsoft Corporation
+ * Copyright (c) 2018-2020 Oracle
  * Author: Matthew Wilcox <willy@infradead.org>
  */
 
@@ -1081,6 +1082,8 @@ void *xas_find(struct xa_state *xas, uns
 
 	if (xas_error(xas))
 		return NULL;
+	if (xas->xa_index > max)
+		return set_bounds(xas);
 
 	if (!xas->xa_node) {
 		xas->xa_index = 1;
@@ -1150,6 +1153,8 @@ void *xas_find_marked(struct xa_state *x
 
 	if (xas_error(xas))
 		return NULL;
+	if (xas->xa_index > max)
+		goto max;
 
 	if (!xas->xa_node) {
 		xas->xa_index = 1;
@@ -1824,6 +1829,17 @@ void *xa_find(struct xarray *xa, unsigne
 }
 EXPORT_SYMBOL(xa_find);
 
+static bool xas_sibling(struct xa_state *xas)
+{
+	struct xa_node *node = xas->xa_node;
+	unsigned long mask;
+
+	if (!node)
+		return false;
+	mask = (XA_CHUNK_SIZE << node->shift) - 1;
+	return (xas->xa_index & mask) > (xas->xa_offset << node->shift);
+}
+
 /**
  * xa_find_after() - Search the XArray for a present entry.
  * @xa: XArray.
@@ -1847,21 +1863,20 @@ void *xa_find_after(struct xarray *xa, u
 	XA_STATE(xas, xa, *indexp + 1);
 	void *entry;
 
+	if (xas.xa_index == 0)
+		return NULL;
+
 	rcu_read_lock();
 	for (;;) {
 		if ((__force unsigned int)filter < XA_MAX_MARKS)
 			entry = xas_find_marked(&xas, max, filter);
 		else
 			entry = xas_find(&xas, max);
-		if (xas.xa_node == XAS_BOUNDS)
+
+		if (xas_invalid(&xas))
 			break;
-		if (xas.xa_shift) {
-			if (xas.xa_index & ((1UL << xas.xa_shift) - 1))
-				continue;
-		} else {
-			if (xas.xa_offset < (xas.xa_index & XA_CHUNK_MASK))
-				continue;
-		}
+		if (xas_sibling(&xas))
+			continue;
 		if (!xas_retry(&xas, entry))
 			break;
 	}
diff -druNp --no-dereference linux-libre-5.4.15-gnu/Makefile linux-libre-5.4.16-gnu/Makefile
--- linux-libre-5.4.15-gnu/Makefile	2020-01-26 05:20:01.000000000 -0500
+++ linux-libre-5.4.16-gnu/Makefile	2020-01-29 11:48:58.000000000 -0500
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 4
-SUBLEVEL = 15
+SUBLEVEL = 16
 EXTRAVERSION = -gnu
 NAME = Kleptomaniac Octopus
 
diff -druNp --no-dereference linux-libre-5.4.15-gnu/net/core/dev.c linux-libre-5.4.16-gnu/net/core/dev.c
--- linux-libre-5.4.15-gnu/net/core/dev.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/net/core/dev.c	2020-01-29 10:45:34.000000000 -0500
@@ -5270,9 +5270,29 @@ static void flush_all_backlogs(void)
 	put_online_cpus();
 }
 
+/* Pass the currently batched GRO_NORMAL SKBs up to the stack. */
+static void gro_normal_list(struct napi_struct *napi)
+{
+	if (!napi->rx_count)
+		return;
+	netif_receive_skb_list_internal(&napi->rx_list);
+	INIT_LIST_HEAD(&napi->rx_list);
+	napi->rx_count = 0;
+}
+
+/* Queue one GRO_NORMAL SKB up for list processing. If batch size exceeded,
+ * pass the whole batch up to the stack.
+ */
+static void gro_normal_one(struct napi_struct *napi, struct sk_buff *skb)
+{
+	list_add_tail(&skb->list, &napi->rx_list);
+	if (++napi->rx_count >= gro_normal_batch)
+		gro_normal_list(napi);
+}
+
 INDIRECT_CALLABLE_DECLARE(int inet_gro_complete(struct sk_buff *, int));
 INDIRECT_CALLABLE_DECLARE(int ipv6_gro_complete(struct sk_buff *, int));
-static int napi_gro_complete(struct sk_buff *skb)
+static int napi_gro_complete(struct napi_struct *napi, struct sk_buff *skb)
 {
 	struct packet_offload *ptype;
 	__be16 type = skb->protocol;
@@ -5305,7 +5325,8 @@ static int napi_gro_complete(struct sk_b
 	}
 
 out:
-	return netif_receive_skb_internal(skb);
+	gro_normal_one(napi, skb);
+	return NET_RX_SUCCESS;
 }
 
 static void __napi_gro_flush_chain(struct napi_struct *napi, u32 index,
@@ -5318,7 +5339,7 @@ static void __napi_gro_flush_chain(struc
 		if (flush_old && NAPI_GRO_CB(skb)->age == jiffies)
 			return;
 		skb_list_del_init(skb);
-		napi_gro_complete(skb);
+		napi_gro_complete(napi, skb);
 		napi->gro_hash[index].count--;
 	}
 
@@ -5421,7 +5442,7 @@ static void gro_pull_from_frag0(struct s
 	}
 }
 
-static void gro_flush_oldest(struct list_head *head)
+static void gro_flush_oldest(struct napi_struct *napi, struct list_head *head)
 {
 	struct sk_buff *oldest;
 
@@ -5437,7 +5458,7 @@ static void gro_flush_oldest(struct list
 	 * SKB to the chain.
 	 */
 	skb_list_del_init(oldest);
-	napi_gro_complete(oldest);
+	napi_gro_complete(napi, oldest);
 }
 
 INDIRECT_CALLABLE_DECLARE(struct sk_buff *inet_gro_receive(struct list_head *,
@@ -5513,7 +5534,7 @@ static enum gro_result dev_gro_receive(s
 
 	if (pp) {
 		skb_list_del_init(pp);
-		napi_gro_complete(pp);
+		napi_gro_complete(napi, pp);
 		napi->gro_hash[hash].count--;
 	}
 
@@ -5524,7 +5545,7 @@ static enum gro_result dev_gro_receive(s
 		goto normal;
 
 	if (unlikely(napi->gro_hash[hash].count >= MAX_GRO_SKBS)) {
-		gro_flush_oldest(gro_head);
+		gro_flush_oldest(napi, gro_head);
 	} else {
 		napi->gro_hash[hash].count++;
 	}
@@ -5672,26 +5693,6 @@ struct sk_buff *napi_get_frags(struct na
 }
 EXPORT_SYMBOL(napi_get_frags);
 
-/* Pass the currently batched GRO_NORMAL SKBs up to the stack. */
-static void gro_normal_list(struct napi_struct *napi)
-{
-	if (!napi->rx_count)
-		return;
-	netif_receive_skb_list_internal(&napi->rx_list);
-	INIT_LIST_HEAD(&napi->rx_list);
-	napi->rx_count = 0;
-}
-
-/* Queue one GRO_NORMAL SKB up for list processing.  If batch size exceeded,
- * pass the whole batch up to the stack.
- */
-static void gro_normal_one(struct napi_struct *napi, struct sk_buff *skb)
-{
-	list_add_tail(&skb->list, &napi->rx_list);
-	if (++napi->rx_count >= gro_normal_batch)
-		gro_normal_list(napi);
-}
-
 static gro_result_t napi_frags_finish(struct napi_struct *napi,
 				      struct sk_buff *skb,
 				      gro_result_t ret)
@@ -5979,8 +5980,6 @@ bool napi_complete_done(struct napi_stru
 				 NAPIF_STATE_IN_BUSY_POLL)))
 		return false;
 
-	gro_normal_list(n);
-
 	if (n->gro_bitmask) {
 		unsigned long timeout = 0;
 
@@ -5996,6 +5995,9 @@ bool napi_complete_done(struct napi_stru
 			hrtimer_start(&n->timer, ns_to_ktime(timeout),
 				      HRTIMER_MODE_REL_PINNED);
 	}
+
+	gro_normal_list(n);
+
 	if (unlikely(!list_empty(&n->poll_list))) {
 		/* If n->poll_list is not empty, we need to mask irqs */
 		local_irq_save(flags);
@@ -6327,8 +6329,6 @@ static int napi_poll(struct napi_struct
 		goto out_unlock;
 	}
 
-	gro_normal_list(n);
-
 	if (n->gro_bitmask) {
 		/* flush too old packets
 		 * If HZ < 1000, flush all packets.
@@ -6336,6 +6336,8 @@ static int napi_poll(struct napi_struct
 		napi_gro_flush(n, HZ >= 1000);
 	}
 
+	gro_normal_list(n);
+
 	/* Some drivers may have called napi_schedule
 	 * prior to exhausting their budget.
 	 */
@@ -7973,6 +7975,22 @@ int __dev_set_mtu(struct net_device *dev
 }
 EXPORT_SYMBOL(__dev_set_mtu);
 
+int dev_validate_mtu(struct net_device *dev, int new_mtu,
+		     struct netlink_ext_ack *extack)
+{
+	/* MTU must be positive, and in range */
+	if (new_mtu < 0 || new_mtu < dev->min_mtu) {
+		NL_SET_ERR_MSG(extack, "mtu less than device minimum");
+		return -EINVAL;
+	}
+
+	if (dev->max_mtu > 0 && new_mtu > dev->max_mtu) {
+		NL_SET_ERR_MSG(extack, "mtu greater than device maximum");
+		return -EINVAL;
+	}
+	return 0;
+}
+
 /**
  *	dev_set_mtu_ext - Change maximum transfer unit
  *	@dev: device
@@ -7989,16 +8007,9 @@ int dev_set_mtu_ext(struct net_device *d
 	if (new_mtu == dev->mtu)
 		return 0;
 
-	/* MTU must be positive, and in range */
-	if (new_mtu < 0 || new_mtu < dev->min_mtu) {
-		NL_SET_ERR_MSG(extack, "mtu less than device minimum");
-		return -EINVAL;
-	}
-
-	if (dev->max_mtu > 0 && new_mtu > dev->max_mtu) {
-		NL_SET_ERR_MSG(extack, "mtu greater than device maximum");
-		return -EINVAL;
-	}
+	err = dev_validate_mtu(dev, new_mtu, extack);
+	if (err)
+		return err;
 
 	if (!netif_device_present(dev))
 		return -ENODEV;
@@ -9073,8 +9084,10 @@ int register_netdevice(struct net_device
 		goto err_uninit;
 
 	ret = netdev_register_kobject(dev);
-	if (ret)
+	if (ret) {
+		dev->reg_state = NETREG_UNREGISTERED;
 		goto err_uninit;
+	}
 	dev->reg_state = NETREG_REGISTERED;
 
 	__netdev_update_features(dev);
diff -druNp --no-dereference linux-libre-5.4.15-gnu/net/core/rtnetlink.c linux-libre-5.4.16-gnu/net/core/rtnetlink.c
--- linux-libre-5.4.15-gnu/net/core/rtnetlink.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/net/core/rtnetlink.c	2020-01-29 10:45:34.000000000 -0500
@@ -2959,8 +2959,17 @@ struct net_device *rtnl_create_link(stru
 	dev->rtnl_link_ops = ops;
 	dev->rtnl_link_state = RTNL_LINK_INITIALIZING;
 
-	if (tb[IFLA_MTU])
-		dev->mtu = nla_get_u32(tb[IFLA_MTU]);
+	if (tb[IFLA_MTU]) {
+		u32 mtu = nla_get_u32(tb[IFLA_MTU]);
+		int err;
+
+		err = dev_validate_mtu(dev, mtu, extack);
+		if (err) {
+			free_netdev(dev);
+			return ERR_PTR(err);
+		}
+		dev->mtu = mtu;
+	}
 	if (tb[IFLA_ADDRESS]) {
 		memcpy(dev->dev_addr, nla_data(tb[IFLA_ADDRESS]),
 				nla_len(tb[IFLA_ADDRESS]));
diff -druNp --no-dereference linux-libre-5.4.15-gnu/net/core/skmsg.c linux-libre-5.4.16-gnu/net/core/skmsg.c
--- linux-libre-5.4.15-gnu/net/core/skmsg.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/net/core/skmsg.c	2020-01-29 10:45:34.000000000 -0500
@@ -594,8 +594,6 @@ EXPORT_SYMBOL_GPL(sk_psock_destroy);
 
 void sk_psock_drop(struct sock *sk, struct sk_psock *psock)
 {
-	sock_owned_by_me(sk);
-
 	sk_psock_cork_free(psock);
 	sk_psock_zap_ingress(psock);
 
diff -druNp --no-dereference linux-libre-5.4.15-gnu/net/hsr/hsr_main.h linux-libre-5.4.16-gnu/net/hsr/hsr_main.h
--- linux-libre-5.4.15-gnu/net/hsr/hsr_main.h	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/net/hsr/hsr_main.h	2020-01-29 10:45:34.000000000 -0500
@@ -191,7 +191,7 @@ void hsr_debugfs_term(struct hsr_priv *p
 void hsr_debugfs_create_root(void);
 void hsr_debugfs_remove_root(void);
 #else
-static inline void void hsr_debugfs_rename(struct net_device *dev)
+static inline void hsr_debugfs_rename(struct net_device *dev)
 {
 }
 static inline void hsr_debugfs_init(struct hsr_priv *priv,
diff -druNp --no-dereference linux-libre-5.4.15-gnu/net/ipv4/esp4_offload.c linux-libre-5.4.16-gnu/net/ipv4/esp4_offload.c
--- linux-libre-5.4.15-gnu/net/ipv4/esp4_offload.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/net/ipv4/esp4_offload.c	2020-01-29 10:45:34.000000000 -0500
@@ -57,6 +57,8 @@ static struct sk_buff *esp4_gro_receive(
 		if (!x)
 			goto out_reset;
 
+		skb->mark = xfrm_smark_get(skb->mark, x);
+
 		sp->xvec[sp->len++] = x;
 		sp->olen++;
 
diff -druNp --no-dereference linux-libre-5.4.15-gnu/net/ipv4/fib_trie.c linux-libre-5.4.16-gnu/net/ipv4/fib_trie.c
--- linux-libre-5.4.15-gnu/net/ipv4/fib_trie.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/net/ipv4/fib_trie.c	2020-01-29 10:45:34.000000000 -0500
@@ -2175,6 +2175,12 @@ int fib_table_dump(struct fib_table *tb,
 	int count = cb->args[2];
 	t_key key = cb->args[3];
 
+	/* First time here, count and key are both always 0. Count > 0
+	 * and key == 0 means the dump has wrapped around and we are done.
+	 */
+	if (count && !key)
+		return skb->len;
+
 	while ((l = leaf_walk_rcu(&tp, key)) != NULL) {
 		int err;
 
diff -druNp --no-dereference linux-libre-5.4.15-gnu/net/ipv4/fou.c linux-libre-5.4.16-gnu/net/ipv4/fou.c
--- linux-libre-5.4.15-gnu/net/ipv4/fou.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/net/ipv4/fou.c	2020-01-29 10:45:34.000000000 -0500
@@ -662,8 +662,8 @@ static const struct nla_policy fou_nl_po
 	[FOU_ATTR_REMCSUM_NOPARTIAL]	= { .type = NLA_FLAG, },
 	[FOU_ATTR_LOCAL_V4]		= { .type = NLA_U32, },
 	[FOU_ATTR_PEER_V4]		= { .type = NLA_U32, },
-	[FOU_ATTR_LOCAL_V6]		= { .type = sizeof(struct in6_addr), },
-	[FOU_ATTR_PEER_V6]		= { .type = sizeof(struct in6_addr), },
+	[FOU_ATTR_LOCAL_V6]		= { .len = sizeof(struct in6_addr), },
+	[FOU_ATTR_PEER_V6]		= { .len = sizeof(struct in6_addr), },
 	[FOU_ATTR_PEER_PORT]		= { .type = NLA_U16, },
 	[FOU_ATTR_IFINDEX]		= { .type = NLA_S32, },
 };
diff -druNp --no-dereference linux-libre-5.4.15-gnu/net/ipv4/ip_tunnel.c linux-libre-5.4.16-gnu/net/ipv4/ip_tunnel.c
--- linux-libre-5.4.15-gnu/net/ipv4/ip_tunnel.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/net/ipv4/ip_tunnel.c	2020-01-29 10:45:34.000000000 -0500
@@ -1236,10 +1236,8 @@ int ip_tunnel_init(struct net_device *de
 	iph->version		= 4;
 	iph->ihl		= 5;
 
-	if (tunnel->collect_md) {
-		dev->features |= NETIF_F_NETNS_LOCAL;
+	if (tunnel->collect_md)
 		netif_keep_dst(dev);
-	}
 	return 0;
 }
 EXPORT_SYMBOL_GPL(ip_tunnel_init);
diff -druNp --no-dereference linux-libre-5.4.15-gnu/net/ipv4/tcp_bbr.c linux-libre-5.4.16-gnu/net/ipv4/tcp_bbr.c
--- linux-libre-5.4.15-gnu/net/ipv4/tcp_bbr.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/net/ipv4/tcp_bbr.c	2020-01-29 10:45:34.000000000 -0500
@@ -779,8 +779,7 @@ static void bbr_update_bw(struct sock *s
 	 * bandwidth sample. Delivered is in packets and interval_us in uS and
 	 * ratio will be <<1 for most connections. So delivered is first scaled.
 	 */
-	bw = (u64)rs->delivered * BW_UNIT;
-	do_div(bw, rs->interval_us);
+	bw = div64_long((u64)rs->delivered * BW_UNIT, rs->interval_us);
 
 	/* If this sample is application-limited, it is likely to have a very
 	 * low delivered count that represents application behavior rather than
diff -druNp --no-dereference linux-libre-5.4.15-gnu/net/ipv4/tcp.c linux-libre-5.4.16-gnu/net/ipv4/tcp.c
--- linux-libre-5.4.15-gnu/net/ipv4/tcp.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/net/ipv4/tcp.c	2020-01-29 10:45:34.000000000 -0500
@@ -2520,6 +2520,7 @@ static void tcp_rtx_queue_purge(struct s
 {
 	struct rb_node *p = rb_first(&sk->tcp_rtx_queue);
 
+	tcp_sk(sk)->highest_sack = NULL;
 	while (p) {
 		struct sk_buff *skb = rb_to_skb(p);
 
diff -druNp --no-dereference linux-libre-5.4.15-gnu/net/ipv4/tcp_input.c linux-libre-5.4.16-gnu/net/ipv4/tcp_input.c
--- linux-libre-5.4.15-gnu/net/ipv4/tcp_input.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/net/ipv4/tcp_input.c	2020-01-29 10:45:34.000000000 -0500
@@ -3164,6 +3164,7 @@ static int tcp_clean_rtx_queue(struct so
 			tp->retransmit_skb_hint = NULL;
 		if (unlikely(skb == tp->lost_skb_hint))
 			tp->lost_skb_hint = NULL;
+		tcp_highest_sack_replace(sk, skb, next);
 		tcp_rtx_queue_unlink_and_free(skb, sk);
 	}
 
diff -druNp --no-dereference linux-libre-5.4.15-gnu/net/ipv4/tcp_output.c linux-libre-5.4.16-gnu/net/ipv4/tcp_output.c
--- linux-libre-5.4.15-gnu/net/ipv4/tcp_output.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/net/ipv4/tcp_output.c	2020-01-29 10:45:34.000000000 -0500
@@ -3231,6 +3231,7 @@ int tcp_send_synack(struct sock *sk)
 			if (!nskb)
 				return -ENOMEM;
 			INIT_LIST_HEAD(&nskb->tcp_tsorted_anchor);
+			tcp_highest_sack_replace(sk, skb, nskb);
 			tcp_rtx_queue_unlink_and_free(skb, sk);
 			__skb_header_release(nskb);
 			tcp_rbtree_insert(&sk->tcp_rtx_queue, nskb);
diff -druNp --no-dereference linux-libre-5.4.15-gnu/net/ipv4/udp.c linux-libre-5.4.16-gnu/net/ipv4/udp.c
--- linux-libre-5.4.15-gnu/net/ipv4/udp.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/net/ipv4/udp.c	2020-01-29 10:45:34.000000000 -0500
@@ -1368,7 +1368,8 @@ static void udp_rmem_release(struct sock
 	if (likely(partial)) {
 		up->forward_deficit += size;
 		size = up->forward_deficit;
-		if (size < (sk->sk_rcvbuf >> 2))
+		if (size < (sk->sk_rcvbuf >> 2) &&
+		    !skb_queue_empty(&up->reader_queue))
 			return;
 	} else {
 		size += up->forward_deficit;
diff -druNp --no-dereference linux-libre-5.4.15-gnu/net/ipv6/esp6_offload.c linux-libre-5.4.16-gnu/net/ipv6/esp6_offload.c
--- linux-libre-5.4.15-gnu/net/ipv6/esp6_offload.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/net/ipv6/esp6_offload.c	2020-01-29 10:45:34.000000000 -0500
@@ -79,6 +79,8 @@ static struct sk_buff *esp6_gro_receive(
 		if (!x)
 			goto out_reset;
 
+		skb->mark = xfrm_smark_get(skb->mark, x);
+
 		sp->xvec[sp->len++] = x;
 		sp->olen++;
 
diff -druNp --no-dereference linux-libre-5.4.15-gnu/net/ipv6/ip6_gre.c linux-libre-5.4.16-gnu/net/ipv6/ip6_gre.c
--- linux-libre-5.4.15-gnu/net/ipv6/ip6_gre.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/net/ipv6/ip6_gre.c	2020-01-29 10:45:34.000000000 -0500
@@ -1466,7 +1466,6 @@ static int ip6gre_tunnel_init_common(str
 		dev->mtu -= 8;
 
 	if (tunnel->parms.collect_md) {
-		dev->features |= NETIF_F_NETNS_LOCAL;
 		netif_keep_dst(dev);
 	}
 	ip6gre_tnl_init_features(dev);
@@ -1894,7 +1893,6 @@ static void ip6gre_tap_setup(struct net_
 	dev->needs_free_netdev = true;
 	dev->priv_destructor = ip6gre_dev_free;
 
-	dev->features |= NETIF_F_NETNS_LOCAL;
 	dev->priv_flags &= ~IFF_TX_SKB_SHARING;
 	dev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
 	netif_keep_dst(dev);
@@ -2197,7 +2195,6 @@ static void ip6erspan_tap_setup(struct n
 	dev->needs_free_netdev = true;
 	dev->priv_destructor = ip6gre_dev_free;
 
-	dev->features |= NETIF_F_NETNS_LOCAL;
 	dev->priv_flags &= ~IFF_TX_SKB_SHARING;
 	dev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
 	netif_keep_dst(dev);
diff -druNp --no-dereference linux-libre-5.4.15-gnu/net/ipv6/ip6_tunnel.c linux-libre-5.4.16-gnu/net/ipv6/ip6_tunnel.c
--- linux-libre-5.4.15-gnu/net/ipv6/ip6_tunnel.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/net/ipv6/ip6_tunnel.c	2020-01-29 10:45:34.000000000 -0500
@@ -1877,10 +1877,8 @@ static int ip6_tnl_dev_init(struct net_d
 	if (err)
 		return err;
 	ip6_tnl_link_config(t);
-	if (t->parms.collect_md) {
-		dev->features |= NETIF_F_NETNS_LOCAL;
+	if (t->parms.collect_md)
 		netif_keep_dst(dev);
-	}
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-5.4.15-gnu/net/ipv6/seg6_local.c linux-libre-5.4.16-gnu/net/ipv6/seg6_local.c
--- linux-libre-5.4.15-gnu/net/ipv6/seg6_local.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/net/ipv6/seg6_local.c	2020-01-29 10:45:34.000000000 -0500
@@ -23,6 +23,7 @@
 #include <net/addrconf.h>
 #include <net/ip6_route.h>
 #include <net/dst_cache.h>
+#include <net/ip_tunnels.h>
 #ifdef CONFIG_IPV6_SEG6_HMAC
 #include <net/seg6_hmac.h>
 #endif
@@ -135,7 +136,8 @@ static bool decap_and_validate(struct sk
 
 	skb_reset_network_header(skb);
 	skb_reset_transport_header(skb);
-	skb->encapsulation = 0;
+	if (iptunnel_pull_offloads(skb))
+		return false;
 
 	return true;
 }
diff -druNp --no-dereference linux-libre-5.4.15-gnu/net/netfilter/ipset/ip_set_bitmap_gen.h linux-libre-5.4.16-gnu/net/netfilter/ipset/ip_set_bitmap_gen.h
--- linux-libre-5.4.15-gnu/net/netfilter/ipset/ip_set_bitmap_gen.h	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/net/netfilter/ipset/ip_set_bitmap_gen.h	2020-01-29 10:45:34.000000000 -0500
@@ -75,7 +75,7 @@ mtype_flush(struct ip_set *set)
 
 	if (set->extensions & IPSET_EXT_DESTROY)
 		mtype_ext_cleanup(set);
-	memset(map->members, 0, map->memsize);
+	bitmap_zero(map->members, map->elements);
 	set->elements = 0;
 	set->ext_size = 0;
 }
diff -druNp --no-dereference linux-libre-5.4.15-gnu/net/netfilter/ipset/ip_set_bitmap_ip.c linux-libre-5.4.16-gnu/net/netfilter/ipset/ip_set_bitmap_ip.c
--- linux-libre-5.4.15-gnu/net/netfilter/ipset/ip_set_bitmap_ip.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/net/netfilter/ipset/ip_set_bitmap_ip.c	2020-01-29 10:45:34.000000000 -0500
@@ -37,7 +37,7 @@ MODULE_ALIAS("ip_set_bitmap:ip");
 
 /* Type structure */
 struct bitmap_ip {
-	void *members;		/* the set members */
+	unsigned long *members;	/* the set members */
 	u32 first_ip;		/* host byte order, included in range */
 	u32 last_ip;		/* host byte order, included in range */
 	u32 elements;		/* number of max elements in the set */
@@ -220,7 +220,7 @@ init_map_ip(struct ip_set *set, struct b
 	    u32 first_ip, u32 last_ip,
 	    u32 elements, u32 hosts, u8 netmask)
 {
-	map->members = ip_set_alloc(map->memsize);
+	map->members = bitmap_zalloc(elements, GFP_KERNEL | __GFP_NOWARN);
 	if (!map->members)
 		return false;
 	map->first_ip = first_ip;
@@ -310,7 +310,7 @@ bitmap_ip_create(struct net *net, struct
 	if (!map)
 		return -ENOMEM;
 
-	map->memsize = bitmap_bytes(0, elements - 1);
+	map->memsize = BITS_TO_LONGS(elements) * sizeof(unsigned long);
 	set->variant = &bitmap_ip;
 	if (!init_map_ip(set, map, first_ip, last_ip,
 			 elements, hosts, netmask)) {
diff -druNp --no-dereference linux-libre-5.4.15-gnu/net/netfilter/ipset/ip_set_bitmap_ipmac.c linux-libre-5.4.16-gnu/net/netfilter/ipset/ip_set_bitmap_ipmac.c
--- linux-libre-5.4.15-gnu/net/netfilter/ipset/ip_set_bitmap_ipmac.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/net/netfilter/ipset/ip_set_bitmap_ipmac.c	2020-01-29 10:45:34.000000000 -0500
@@ -42,7 +42,7 @@ enum {
 
 /* Type structure */
 struct bitmap_ipmac {
-	void *members;		/* the set members */
+	unsigned long *members;	/* the set members */
 	u32 first_ip;		/* host byte order, included in range */
 	u32 last_ip;		/* host byte order, included in range */
 	u32 elements;		/* number of max elements in the set */
@@ -299,7 +299,7 @@ static bool
 init_map_ipmac(struct ip_set *set, struct bitmap_ipmac *map,
 	       u32 first_ip, u32 last_ip, u32 elements)
 {
-	map->members = ip_set_alloc(map->memsize);
+	map->members = bitmap_zalloc(elements, GFP_KERNEL | __GFP_NOWARN);
 	if (!map->members)
 		return false;
 	map->first_ip = first_ip;
@@ -360,7 +360,7 @@ bitmap_ipmac_create(struct net *net, str
 	if (!map)
 		return -ENOMEM;
 
-	map->memsize = bitmap_bytes(0, elements - 1);
+	map->memsize = BITS_TO_LONGS(elements) * sizeof(unsigned long);
 	set->variant = &bitmap_ipmac;
 	if (!init_map_ipmac(set, map, first_ip, last_ip, elements)) {
 		kfree(map);
diff -druNp --no-dereference linux-libre-5.4.15-gnu/net/netfilter/ipset/ip_set_bitmap_port.c linux-libre-5.4.16-gnu/net/netfilter/ipset/ip_set_bitmap_port.c
--- linux-libre-5.4.15-gnu/net/netfilter/ipset/ip_set_bitmap_port.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/net/netfilter/ipset/ip_set_bitmap_port.c	2020-01-29 10:45:34.000000000 -0500
@@ -30,7 +30,7 @@ MODULE_ALIAS("ip_set_bitmap:port");
 
 /* Type structure */
 struct bitmap_port {
-	void *members;		/* the set members */
+	unsigned long *members;	/* the set members */
 	u16 first_port;		/* host byte order, included in range */
 	u16 last_port;		/* host byte order, included in range */
 	u32 elements;		/* number of max elements in the set */
@@ -204,7 +204,7 @@ static bool
 init_map_port(struct ip_set *set, struct bitmap_port *map,
 	      u16 first_port, u16 last_port)
 {
-	map->members = ip_set_alloc(map->memsize);
+	map->members = bitmap_zalloc(map->elements, GFP_KERNEL | __GFP_NOWARN);
 	if (!map->members)
 		return false;
 	map->first_port = first_port;
@@ -244,7 +244,7 @@ bitmap_port_create(struct net *net, stru
 		return -ENOMEM;
 
 	map->elements = elements;
-	map->memsize = bitmap_bytes(0, map->elements);
+	map->memsize = BITS_TO_LONGS(elements) * sizeof(unsigned long);
 	set->variant = &bitmap_port;
 	if (!init_map_port(set, map, first_port, last_port)) {
 		kfree(map);
diff -druNp --no-dereference linux-libre-5.4.15-gnu/net/netfilter/nfnetlink.c linux-libre-5.4.16-gnu/net/netfilter/nfnetlink.c
--- linux-libre-5.4.15-gnu/net/netfilter/nfnetlink.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/net/netfilter/nfnetlink.c	2020-01-29 10:45:34.000000000 -0500
@@ -476,7 +476,7 @@ ack:
 	}
 done:
 	if (status & NFNL_BATCH_REPLAY) {
-		ss->abort(net, oskb);
+		ss->abort(net, oskb, true);
 		nfnl_err_reset(&err_list);
 		kfree_skb(skb);
 		module_put(ss->owner);
@@ -487,11 +487,11 @@ done:
 			status |= NFNL_BATCH_REPLAY;
 			goto done;
 		} else if (err) {
-			ss->abort(net, oskb);
+			ss->abort(net, oskb, false);
 			netlink_ack(oskb, nlmsg_hdr(oskb), err, NULL);
 		}
 	} else {
-		ss->abort(net, oskb);
+		ss->abort(net, oskb, false);
 	}
 	if (ss->cleanup)
 		ss->cleanup(net);
diff -druNp --no-dereference linux-libre-5.4.15-gnu/net/netfilter/nf_tables_api.c linux-libre-5.4.16-gnu/net/netfilter/nf_tables_api.c
--- linux-libre-5.4.15-gnu/net/netfilter/nf_tables_api.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/net/netfilter/nf_tables_api.c	2020-01-29 10:45:34.000000000 -0500
@@ -489,47 +489,70 @@ static inline u64 nf_tables_alloc_handle
 static const struct nft_chain_type *chain_type[NFPROTO_NUMPROTO][NFT_CHAIN_T_MAX];
 
 static const struct nft_chain_type *
+__nft_chain_type_get(u8 family, enum nft_chain_types type)
+{
+	if (family >= NFPROTO_NUMPROTO ||
+	    type >= NFT_CHAIN_T_MAX)
+		return NULL;
+
+	return chain_type[family][type];
+}
+
+static const struct nft_chain_type *
 __nf_tables_chain_type_lookup(const struct nlattr *nla, u8 family)
 {
+	const struct nft_chain_type *type;
 	int i;
 
 	for (i = 0; i < NFT_CHAIN_T_MAX; i++) {
-		if (chain_type[family][i] != NULL &&
-		    !nla_strcmp(nla, chain_type[family][i]->name))
-			return chain_type[family][i];
+		type = __nft_chain_type_get(family, i);
+		if (!type)
+			continue;
+		if (!nla_strcmp(nla, type->name))
+			return type;
 	}
 	return NULL;
 }
 
-/*
- * Loading a module requires dropping mutex that guards the transaction.
- * A different client might race to start a new transaction meanwhile. Zap the
- * list of pending transaction and then restore it once the mutex is grabbed
- * again. Users of this function return EAGAIN which implicitly triggers the
- * transaction abort path to clean up the list of pending transactions.
- */
+struct nft_module_request {
+	struct list_head	list;
+	char			module[MODULE_NAME_LEN];
+	bool			done;
+};
+
 #ifdef CONFIG_MODULES
-static void nft_request_module(struct net *net, const char *fmt, ...)
+static int nft_request_module(struct net *net, const char *fmt, ...)
 {
 	char module_name[MODULE_NAME_LEN];
-	LIST_HEAD(commit_list);
+	struct nft_module_request *req;
 	va_list args;
 	int ret;
 
-	list_splice_init(&net->nft.commit_list, &commit_list);
-
 	va_start(args, fmt);
 	ret = vsnprintf(module_name, MODULE_NAME_LEN, fmt, args);
 	va_end(args);
 	if (ret >= MODULE_NAME_LEN)
-		return;
+		return 0;
 
-	mutex_unlock(&net->nft.commit_mutex);
-	request_module("%s", module_name);
-	mutex_lock(&net->nft.commit_mutex);
+	list_for_each_entry(req, &net->nft.module_list, list) {
+		if (!strcmp(req->module, module_name)) {
+			if (req->done)
+				return 0;
 
-	WARN_ON_ONCE(!list_empty(&net->nft.commit_list));
-	list_splice(&commit_list, &net->nft.commit_list);
+			/* A request to load this module already exists. */
+			return -EAGAIN;
+		}
+	}
+
+	req = kmalloc(sizeof(*req), GFP_KERNEL);
+	if (!req)
+		return -ENOMEM;
+
+	req->done = false;
+	strlcpy(req->module, module_name, MODULE_NAME_LEN);
+	list_add_tail(&req->list, &net->nft.module_list);
+
+	return -EAGAIN;
 }
 #endif
 
@@ -553,10 +576,9 @@ nf_tables_chain_type_lookup(struct net *
 	lockdep_nfnl_nft_mutex_not_held();
 #ifdef CONFIG_MODULES
 	if (autoload) {
-		nft_request_module(net, "nft-chain-%u-%.*s", family,
-				   nla_len(nla), (const char *)nla_data(nla));
-		type = __nf_tables_chain_type_lookup(nla, family);
-		if (type != NULL)
+		if (nft_request_module(net, "nft-chain-%u-%.*s", family,
+				       nla_len(nla),
+				       (const char *)nla_data(nla)) == -EAGAIN)
 			return ERR_PTR(-EAGAIN);
 	}
 #endif
@@ -1095,11 +1117,8 @@ static void nf_tables_table_destroy(stru
 
 void nft_register_chain_type(const struct nft_chain_type *ctype)
 {
-	if (WARN_ON(ctype->family >= NFPROTO_NUMPROTO))
-		return;
-
 	nfnl_lock(NFNL_SUBSYS_NFTABLES);
-	if (WARN_ON(chain_type[ctype->family][ctype->type] != NULL)) {
+	if (WARN_ON(__nft_chain_type_get(ctype->family, ctype->type))) {
 		nfnl_unlock(NFNL_SUBSYS_NFTABLES);
 		return;
 	}
@@ -1551,7 +1570,10 @@ static int nft_chain_parse_hook(struct n
 	hook->num = ntohl(nla_get_be32(ha[NFTA_HOOK_HOOKNUM]));
 	hook->priority = ntohl(nla_get_be32(ha[NFTA_HOOK_PRIORITY]));
 
-	type = chain_type[family][NFT_CHAIN_T_DEFAULT];
+	type = __nft_chain_type_get(family, NFT_CHAIN_T_DEFAULT);
+	if (!type)
+		return -EOPNOTSUPP;
+
 	if (nla[NFTA_CHAIN_TYPE]) {
 		type = nf_tables_chain_type_lookup(net, nla[NFTA_CHAIN_TYPE],
 						   family, autoload);
@@ -2060,9 +2082,8 @@ static const struct nft_expr_type *__nft
 static int nft_expr_type_request_module(struct net *net, u8 family,
 					struct nlattr *nla)
 {
-	nft_request_module(net, "nft-expr-%u-%.*s", family,
-			   nla_len(nla), (char *)nla_data(nla));
-	if (__nft_expr_type_get(family, nla))
+	if (nft_request_module(net, "nft-expr-%u-%.*s", family,
+			       nla_len(nla), (char *)nla_data(nla)) == -EAGAIN)
 		return -EAGAIN;
 
 	return 0;
@@ -2088,9 +2109,9 @@ static const struct nft_expr_type *nft_e
 		if (nft_expr_type_request_module(net, family, nla) == -EAGAIN)
 			return ERR_PTR(-EAGAIN);
 
-		nft_request_module(net, "nft-expr-%.*s",
-				   nla_len(nla), (char *)nla_data(nla));
-		if (__nft_expr_type_get(family, nla))
+		if (nft_request_module(net, "nft-expr-%.*s",
+				       nla_len(nla),
+				       (char *)nla_data(nla)) == -EAGAIN)
 			return ERR_PTR(-EAGAIN);
 	}
 #endif
@@ -2181,9 +2202,10 @@ static int nf_tables_expr_parse(const st
 			err = PTR_ERR(ops);
 #ifdef CONFIG_MODULES
 			if (err == -EAGAIN)
-				nft_expr_type_request_module(ctx->net,
-							     ctx->family,
-							     tb[NFTA_EXPR_NAME]);
+				if (nft_expr_type_request_module(ctx->net,
+								 ctx->family,
+								 tb[NFTA_EXPR_NAME]) != -EAGAIN)
+					err = -ENOENT;
 #endif
 			goto err1;
 		}
@@ -3020,8 +3042,7 @@ nft_select_set_ops(const struct nft_ctx
 	lockdep_nfnl_nft_mutex_not_held();
 #ifdef CONFIG_MODULES
 	if (list_empty(&nf_tables_set_types)) {
-		nft_request_module(ctx->net, "nft-set");
-		if (!list_empty(&nf_tables_set_types))
+		if (nft_request_module(ctx->net, "nft-set") == -EAGAIN)
 			return ERR_PTR(-EAGAIN);
 	}
 #endif
@@ -5147,8 +5168,7 @@ nft_obj_type_get(struct net *net, u32 ob
 	lockdep_nfnl_nft_mutex_not_held();
 #ifdef CONFIG_MODULES
 	if (type == NULL) {
-		nft_request_module(net, "nft-obj-%u", objtype);
-		if (__nft_obj_type_get(objtype))
+		if (nft_request_module(net, "nft-obj-%u", objtype) == -EAGAIN)
 			return ERR_PTR(-EAGAIN);
 	}
 #endif
@@ -5764,8 +5784,7 @@ nft_flowtable_type_get(struct net *net,
 	lockdep_nfnl_nft_mutex_not_held();
 #ifdef CONFIG_MODULES
 	if (type == NULL) {
-		nft_request_module(net, "nf-flowtable-%u", family);
-		if (__nft_flowtable_type_get(family))
+		if (nft_request_module(net, "nf-flowtable-%u", family) == -EAGAIN)
 			return ERR_PTR(-EAGAIN);
 	}
 #endif
@@ -6712,6 +6731,18 @@ static void nft_chain_del(struct nft_cha
 	list_del_rcu(&chain->list);
 }
 
+static void nf_tables_module_autoload_cleanup(struct net *net)
+{
+	struct nft_module_request *req, *next;
+
+	WARN_ON_ONCE(!list_empty(&net->nft.commit_list));
+	list_for_each_entry_safe(req, next, &net->nft.module_list, list) {
+		WARN_ON_ONCE(!req->done);
+		list_del(&req->list);
+		kfree(req);
+	}
+}
+
 static void nf_tables_commit_release(struct net *net)
 {
 	struct nft_trans *trans;
@@ -6724,6 +6755,7 @@ static void nf_tables_commit_release(str
 	 * to prevent expensive synchronize_rcu() in commit phase.
 	 */
 	if (list_empty(&net->nft.commit_list)) {
+		nf_tables_module_autoload_cleanup(net);
 		mutex_unlock(&net->nft.commit_mutex);
 		return;
 	}
@@ -6738,6 +6770,7 @@ static void nf_tables_commit_release(str
 	list_splice_tail_init(&net->nft.commit_list, &nf_tables_destroy_list);
 	spin_unlock(&nf_tables_destroy_list_lock);
 
+	nf_tables_module_autoload_cleanup(net);
 	mutex_unlock(&net->nft.commit_mutex);
 
 	schedule_work(&trans_destroy_work);
@@ -6929,6 +6962,26 @@ static int nf_tables_commit(struct net *
 	return 0;
 }
 
+static void nf_tables_module_autoload(struct net *net)
+{
+	struct nft_module_request *req, *next;
+	LIST_HEAD(module_list);
+
+	list_splice_init(&net->nft.module_list, &module_list);
+	mutex_unlock(&net->nft.commit_mutex);
+	list_for_each_entry_safe(req, next, &module_list, list) {
+		if (req->done) {
+			list_del(&req->list);
+			kfree(req);
+		} else {
+			request_module("%s", req->module);
+			req->done = true;
+		}
+	}
+	mutex_lock(&net->nft.commit_mutex);
+	list_splice(&module_list, &net->nft.module_list);
+}
+
 static void nf_tables_abort_release(struct nft_trans *trans)
 {
 	switch (trans->msg_type) {
@@ -6958,7 +7011,7 @@ static void nf_tables_abort_release(stru
 	kfree(trans);
 }
 
-static int __nf_tables_abort(struct net *net)
+static int __nf_tables_abort(struct net *net, bool autoload)
 {
 	struct nft_trans *trans, *next;
 	struct nft_trans_elem *te;
@@ -7080,6 +7133,11 @@ static int __nf_tables_abort(struct net
 		nf_tables_abort_release(trans);
 	}
 
+	if (autoload)
+		nf_tables_module_autoload(net);
+	else
+		nf_tables_module_autoload_cleanup(net);
+
 	return 0;
 }
 
@@ -7088,9 +7146,9 @@ static void nf_tables_cleanup(struct net
 	nft_validate_state_update(net, NFT_VALIDATE_SKIP);
 }
 
-static int nf_tables_abort(struct net *net, struct sk_buff *skb)
+static int nf_tables_abort(struct net *net, struct sk_buff *skb, bool autoload)
 {
-	int ret = __nf_tables_abort(net);
+	int ret = __nf_tables_abort(net, autoload);
 
 	mutex_unlock(&net->nft.commit_mutex);
 
@@ -7685,6 +7743,7 @@ static int __net_init nf_tables_init_net
 {
 	INIT_LIST_HEAD(&net->nft.tables);
 	INIT_LIST_HEAD(&net->nft.commit_list);
+	INIT_LIST_HEAD(&net->nft.module_list);
 	mutex_init(&net->nft.commit_mutex);
 	net->nft.base_seq = 1;
 	net->nft.validate_state = NFT_VALIDATE_SKIP;
@@ -7696,7 +7755,7 @@ static void __net_exit nf_tables_exit_ne
 {
 	mutex_lock(&net->nft.commit_mutex);
 	if (!list_empty(&net->nft.commit_list))
-		__nf_tables_abort(net);
+		__nf_tables_abort(net, false);
 	__nft_release_tables(net);
 	mutex_unlock(&net->nft.commit_mutex);
 	WARN_ON_ONCE(!list_empty(&net->nft.tables));
diff -druNp --no-dereference linux-libre-5.4.15-gnu/net/netfilter/nft_osf.c linux-libre-5.4.16-gnu/net/netfilter/nft_osf.c
--- linux-libre-5.4.15-gnu/net/netfilter/nft_osf.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/net/netfilter/nft_osf.c	2020-01-29 10:45:34.000000000 -0500
@@ -61,6 +61,9 @@ static int nft_osf_init(const struct nft
 	int err;
 	u8 ttl;
 
+	if (!tb[NFTA_OSF_DREG])
+		return -EINVAL;
+
 	if (tb[NFTA_OSF_TTL]) {
 		ttl = nla_get_u8(tb[NFTA_OSF_TTL]);
 		if (ttl > 2)
diff -druNp --no-dereference linux-libre-5.4.15-gnu/net/sched/cls_api.c linux-libre-5.4.16-gnu/net/sched/cls_api.c
--- linux-libre-5.4.15-gnu/net/sched/cls_api.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/net/sched/cls_api.c	2020-01-29 10:45:34.000000000 -0500
@@ -2055,9 +2055,8 @@ replay:
 							       &chain_info));
 
 		mutex_unlock(&chain->filter_chain_lock);
-		tp_new = tcf_proto_create(nla_data(tca[TCA_KIND]),
-					  protocol, prio, chain, rtnl_held,
-					  extack);
+		tp_new = tcf_proto_create(name, protocol, prio, chain,
+					  rtnl_held, extack);
 		if (IS_ERR(tp_new)) {
 			err = PTR_ERR(tp_new);
 			goto errout_tp;
diff -druNp --no-dereference linux-libre-5.4.15-gnu/net/sched/ematch.c linux-libre-5.4.16-gnu/net/sched/ematch.c
--- linux-libre-5.4.15-gnu/net/sched/ematch.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/net/sched/ematch.c	2020-01-29 10:45:34.000000000 -0500
@@ -263,12 +263,12 @@ static int tcf_em_validate(struct tcf_pr
 				}
 				em->data = (unsigned long) v;
 			}
+			em->datalen = data_len;
 		}
 	}
 
 	em->matchid = em_hdr->matchid;
 	em->flags = em_hdr->flags;
-	em->datalen = data_len;
 	em->net = net;
 
 	err = 0;
diff -druNp --no-dereference linux-libre-5.4.15-gnu/net/tls/tls_sw.c linux-libre-5.4.16-gnu/net/tls/tls_sw.c
--- linux-libre-5.4.15-gnu/net/tls/tls_sw.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/net/tls/tls_sw.c	2020-01-29 10:45:34.000000000 -0500
@@ -793,7 +793,7 @@ static int bpf_exec_tx_verdict(struct sk
 	psock = sk_psock_get(sk);
 	if (!psock || !policy) {
 		err = tls_push_record(sk, flags, record_type);
-		if (err) {
+		if (err && err != -EINPROGRESS) {
 			*copied -= sk_msg_free(sk, msg);
 			tls_free_open_rec(sk);
 		}
@@ -819,7 +819,7 @@ more_data:
 	switch (psock->eval) {
 	case __SK_PASS:
 		err = tls_push_record(sk, flags, record_type);
-		if (err < 0) {
+		if (err && err != -EINPROGRESS) {
 			*copied -= sk_msg_free(sk, msg);
 			tls_free_open_rec(sk);
 			goto out_err;
diff -druNp --no-dereference linux-libre-5.4.15-gnu/net/x25/af_x25.c linux-libre-5.4.16-gnu/net/x25/af_x25.c
--- linux-libre-5.4.15-gnu/net/x25/af_x25.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/net/x25/af_x25.c	2020-01-29 10:45:34.000000000 -0500
@@ -760,6 +760,10 @@ static int x25_connect(struct socket *so
 	if (sk->sk_state == TCP_ESTABLISHED)
 		goto out;
 
+	rc = -EALREADY;	/* Do nothing if call is already in progress */
+	if (sk->sk_state == TCP_SYN_SENT)
+		goto out;
+
 	sk->sk_state   = TCP_CLOSE;
 	sock->state = SS_UNCONNECTED;
 
@@ -806,7 +810,7 @@ static int x25_connect(struct socket *so
 	/* Now the loop */
 	rc = -EINPROGRESS;
 	if (sk->sk_state != TCP_ESTABLISHED && (flags & O_NONBLOCK))
-		goto out_put_neigh;
+		goto out;
 
 	rc = x25_wait_for_connection_establishment(sk);
 	if (rc)
diff -druNp --no-dereference linux-libre-5.4.15-gnu/scripts/recordmcount.c linux-libre-5.4.16-gnu/scripts/recordmcount.c
--- linux-libre-5.4.15-gnu/scripts/recordmcount.c	2020-01-26 04:01:09.000000000 -0500
+++ linux-libre-5.4.16-gnu/scripts/recordmcount.c	2020-01-29 10:45:34.000000000 -0500
@@ -38,6 +38,10 @@
 #define R_AARCH64_ABS64	257
 #endif
 
+#define R_ARM_PC24		1
+#define R_ARM_THM_CALL		10
+#define R_ARM_CALL		28
+
 static int fd_map;	/* File descriptor for file being modified. */
 static int mmap_failed; /* Boolean flag. */
 static char gpfx;	/* prefix for global symbol name (sometimes '_') */
@@ -418,6 +422,18 @@ static char const *already_has_rel_mcoun
 #define RECORD_MCOUNT_64
 #include "recordmcount.h"
 
+static int arm_is_fake_mcount(Elf32_Rel const *rp)
+{
+	switch (ELF32_R_TYPE(w(rp->r_info))) {
+	case R_ARM_THM_CALL:
+	case R_ARM_CALL:
+	case R_ARM_PC24:
+		return 0;
+	}
+
+	return 1;
+}
+
 /* 64-bit EM_MIPS has weird ELF64_Rela.r_info.
  * http://techpubs.sgi.com/library/manuals/4000/007-4658-001/pdf/007-4658-001.pdf
  * We interpret Table 29 Relocation Operation (Elf64_Rel, Elf64_Rela) [p.40]
@@ -523,6 +539,7 @@ static int do_file(char const *const fna
 		altmcount = "__gnu_mcount_nc";
 		make_nop = make_nop_arm;
 		rel_type_nop = R_ARM_NONE;
+		is_fake_mcount32 = arm_is_fake_mcount;
 		gpfx = 0;
 		break;
 	case EM_AARCH64:
