diff --git linux-libre-4.4.235-gnu/Documentation/filesystems/affs.txt linux-libre-4.4.236-gnu/Documentation/filesystems/affs.txt
index 71b63c2b9841..a8f1a58e3692 100644
--- linux-libre-4.4.235-gnu/Documentation/filesystems/affs.txt
+++ linux-libre-4.4.236-gnu/Documentation/filesystems/affs.txt
@@ -93,13 +93,15 @@ The Amiga protection flags RWEDRWEDHSPARWED are handled as follows:
 
   - R maps to r for user, group and others. On directories, R implies x.
 
-  - If both W and D are allowed, w will be set.
+  - W maps to w.
 
   - E maps to x.
 
-  - H and P are always retained and ignored under Linux.
+  - D is ignored.
 
-  - A is always reset when a file is written to.
+  - H, S and P are always retained and ignored under Linux.
+
+  - A is cleared when a file is written to.
 
 User id and group id will be used unless set[gu]id are given as mount
 options. Since most of the Amiga file systems are single user systems
@@ -111,11 +113,13 @@ Linux -> Amiga:
 
 The Linux rwxrwxrwx file mode is handled as follows:
 
-  - r permission will set R for user, group and others.
+  - r permission will allow R for user, group and others.
+
+  - w permission will allow W for user, group and others.
 
-  - w permission will set W and D for user, group and others.
+  - x permission of the user will allow E for plain files.
 
-  - x permission of the user will set E for plain files.
+  - D will be allowed for user, group and others.
 
   - All other flags (suid, sgid, ...) are ignored and will
     not be retained.
diff --git linux-libre-4.4.235-gnu/Makefile linux-libre-4.4.236-gnu/Makefile
index 2619739b6730..095fad16da84 100644
--- linux-libre-4.4.235-gnu/Makefile
+++ linux-libre-4.4.236-gnu/Makefile
@@ -1,6 +1,6 @@
 VERSION = 4
 PATCHLEVEL = 4
-SUBLEVEL = 235
+SUBLEVEL = 236
 EXTRAVERSION = -gnu
 NAME = Blurry Fish Butt
 
diff --git linux-libre-4.4.235-gnu/arch/s390/include/asm/percpu.h linux-libre-4.4.236-gnu/arch/s390/include/asm/percpu.h
index 6d6556ca24aa..f715419a72cf 100644
--- linux-libre-4.4.235-gnu/arch/s390/include/asm/percpu.h
+++ linux-libre-4.4.236-gnu/arch/s390/include/asm/percpu.h
@@ -28,7 +28,7 @@
 	typedef typeof(pcp) pcp_op_T__;					\
 	pcp_op_T__ old__, new__, prev__;				\
 	pcp_op_T__ *ptr__;						\
-	preempt_disable();						\
+	preempt_disable_notrace();					\
 	ptr__ = raw_cpu_ptr(&(pcp));					\
 	prev__ = *ptr__;						\
 	do {								\
@@ -36,7 +36,7 @@
 		new__ = old__ op (val);					\
 		prev__ = cmpxchg(ptr__, old__, new__);			\
 	} while (prev__ != old__);					\
-	preempt_enable();						\
+	preempt_enable_notrace();					\
 	new__;								\
 })
 
@@ -67,7 +67,7 @@
 	typedef typeof(pcp) pcp_op_T__; 				\
 	pcp_op_T__ val__ = (val);					\
 	pcp_op_T__ old__, *ptr__;					\
-	preempt_disable();						\
+	preempt_disable_notrace();					\
 	ptr__ = raw_cpu_ptr(&(pcp)); 				\
 	if (__builtin_constant_p(val__) &&				\
 	    ((szcast)val__ > -129) && ((szcast)val__ < 128)) {		\
@@ -83,7 +83,7 @@
 			: [val__] "d" (val__)				\
 			: "cc");					\
 	}								\
-	preempt_enable();						\
+	preempt_enable_notrace();					\
 }
 
 #define this_cpu_add_4(pcp, val) arch_this_cpu_add(pcp, val, "laa", "asi", int)
@@ -94,14 +94,14 @@
 	typedef typeof(pcp) pcp_op_T__; 				\
 	pcp_op_T__ val__ = (val);					\
 	pcp_op_T__ old__, *ptr__;					\
-	preempt_disable();						\
+	preempt_disable_notrace();					\
 	ptr__ = raw_cpu_ptr(&(pcp));	 				\
 	asm volatile(							\
 		op "    %[old__],%[val__],%[ptr__]\n"			\
 		: [old__] "=d" (old__), [ptr__] "+Q" (*ptr__)		\
 		: [val__] "d" (val__)					\
 		: "cc");						\
-	preempt_enable();						\
+	preempt_enable_notrace();						\
 	old__ + val__;							\
 })
 
@@ -113,14 +113,14 @@
 	typedef typeof(pcp) pcp_op_T__; 				\
 	pcp_op_T__ val__ = (val);					\
 	pcp_op_T__ old__, *ptr__;					\
-	preempt_disable();						\
+	preempt_disable_notrace();					\
 	ptr__ = raw_cpu_ptr(&(pcp));	 				\
 	asm volatile(							\
 		op "    %[old__],%[val__],%[ptr__]\n"			\
 		: [old__] "=d" (old__), [ptr__] "+Q" (*ptr__)		\
 		: [val__] "d" (val__)					\
 		: "cc");						\
-	preempt_enable();						\
+	preempt_enable_notrace();					\
 }
 
 #define this_cpu_and_4(pcp, val)	arch_this_cpu_to_op(pcp, val, "lan")
@@ -135,10 +135,10 @@
 	typedef typeof(pcp) pcp_op_T__;					\
 	pcp_op_T__ ret__;						\
 	pcp_op_T__ *ptr__;						\
-	preempt_disable();						\
+	preempt_disable_notrace();					\
 	ptr__ = raw_cpu_ptr(&(pcp));					\
 	ret__ = cmpxchg(ptr__, oval, nval);				\
-	preempt_enable();						\
+	preempt_enable_notrace();					\
 	ret__;								\
 })
 
@@ -151,10 +151,10 @@
 ({									\
 	typeof(pcp) *ptr__;						\
 	typeof(pcp) ret__;						\
-	preempt_disable();						\
+	preempt_disable_notrace();					\
 	ptr__ = raw_cpu_ptr(&(pcp));					\
 	ret__ = xchg(ptr__, nval);					\
-	preempt_enable();						\
+	preempt_enable_notrace();					\
 	ret__;								\
 })
 
@@ -170,11 +170,11 @@
 	typeof(pcp1) *p1__;						\
 	typeof(pcp2) *p2__;						\
 	int ret__;							\
-	preempt_disable();						\
+	preempt_disable_notrace();					\
 	p1__ = raw_cpu_ptr(&(pcp1));					\
 	p2__ = raw_cpu_ptr(&(pcp2));					\
 	ret__ = __cmpxchg_double(p1__, p2__, o1__, o2__, n1__, n2__);	\
-	preempt_enable();						\
+	preempt_enable_notrace();					\
 	ret__;								\
 })
 
diff --git linux-libre-4.4.235-gnu/drivers/dma/at_hdmac.c linux-libre-4.4.236-gnu/drivers/dma/at_hdmac.c
index 941ace052130..5276074d0e36 100644
--- linux-libre-4.4.235-gnu/drivers/dma/at_hdmac.c
+++ linux-libre-4.4.236-gnu/drivers/dma/at_hdmac.c
@@ -1817,6 +1817,8 @@ static struct dma_chan *at_dma_xlate(struct of_phandle_args *dma_spec,
 		return NULL;
 
 	dmac_pdev = of_find_device_by_node(dma_spec->np);
+	if (!dmac_pdev)
+		return NULL;
 
 	dma_cap_zero(mask);
 	dma_cap_set(DMA_SLAVE, mask);
diff --git linux-libre-4.4.235-gnu/drivers/dma/of-dma.c linux-libre-4.4.236-gnu/drivers/dma/of-dma.c
index 1e1f2986eba8..86c591481dfe 100644
--- linux-libre-4.4.235-gnu/drivers/dma/of-dma.c
+++ linux-libre-4.4.236-gnu/drivers/dma/of-dma.c
@@ -72,12 +72,12 @@ static struct dma_chan *of_dma_router_xlate(struct of_phandle_args *dma_spec,
 		return NULL;
 
 	chan = ofdma_target->of_dma_xlate(&dma_spec_target, ofdma_target);
-	if (chan) {
-		chan->router = ofdma->dma_router;
-		chan->route_data = route_data;
-	} else {
+	if (IS_ERR_OR_NULL(chan)) {
 		ofdma->dma_router->route_free(ofdma->dma_router->dev,
 					      route_data);
+	} else {
+		chan->router = ofdma->dma_router;
+		chan->route_data = route_data;
 	}
 
 	/*
diff --git linux-libre-4.4.235-gnu/drivers/dma/pl330.c linux-libre-4.4.236-gnu/drivers/dma/pl330.c
index 799c182c3eac..9aa57b37381a 100644
--- linux-libre-4.4.235-gnu/drivers/dma/pl330.c
+++ linux-libre-4.4.236-gnu/drivers/dma/pl330.c
@@ -2629,6 +2629,7 @@ pl330_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dst,
 	while (burst != (1 << desc->rqcfg.brst_size))
 		desc->rqcfg.brst_size++;
 
+	desc->rqcfg.brst_len = get_burst_len(desc, len);
 	/*
 	 * If burst size is smaller than bus width then make sure we only
 	 * transfer one at a time to avoid a burst stradling an MFIFO entry.
@@ -2636,7 +2637,6 @@ pl330_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dst,
 	if (desc->rqcfg.brst_size * 8 < pl330->pcfg.data_bus_width)
 		desc->rqcfg.brst_len = 1;
 
-	desc->rqcfg.brst_len = get_burst_len(desc, len);
 	desc->bytes_requested = len;
 
 	desc->txd.flags = flags;
diff --git linux-libre-4.4.235-gnu/drivers/hid/hid-core.c linux-libre-4.4.236-gnu/drivers/hid/hid-core.c
index 325adbef134c..9425c789b097 100644
--- linux-libre-4.4.235-gnu/drivers/hid/hid-core.c
+++ linux-libre-4.4.236-gnu/drivers/hid/hid-core.c
@@ -1367,6 +1367,17 @@ static void hid_output_field(const struct hid_device *hid,
 	}
 }
 
+/*
+ * Compute the size of a report.
+ */
+static size_t hid_compute_report_size(struct hid_report *report)
+{
+	if (report->size)
+		return ((report->size - 1) >> 3) + 1;
+
+	return 0;
+}
+
 /*
  * Create a report. 'data' has to be allocated using
  * hid_alloc_report_buf() so that it has proper size.
@@ -1379,7 +1390,7 @@ void hid_output_report(struct hid_report *report, __u8 *data)
 	if (report->id > 0)
 		*data++ = report->id;
 
-	memset(data, 0, ((report->size - 1) >> 3) + 1);
+	memset(data, 0, hid_compute_report_size(report));
 	for (n = 0; n < report->maxfield; n++)
 		hid_output_field(report->device, report->field[n], data);
 }
@@ -1506,7 +1517,7 @@ int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, u32 size,
 		csize--;
 	}
 
-	rsize = ((report->size - 1) >> 3) + 1;
+	rsize = hid_compute_report_size(report);
 
 	if (report_enum->numbered && rsize >= HID_MAX_BUFFER_SIZE)
 		rsize = HID_MAX_BUFFER_SIZE - 1;
diff --git linux-libre-4.4.235-gnu/drivers/hid/hid-input.c linux-libre-4.4.236-gnu/drivers/hid/hid-input.c
index 3331bf8ad85e..c033d12070c3 100644
--- linux-libre-4.4.235-gnu/drivers/hid/hid-input.c
+++ linux-libre-4.4.236-gnu/drivers/hid/hid-input.c
@@ -994,6 +994,10 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
 	}
 
 mapped:
+	/* Mapping failed, bail out */
+	if (!bit)
+		return;
+
 	if (device->driver->input_mapped &&
 	    device->driver->input_mapped(device, hidinput, field, usage,
 					 &bit, &max) < 0) {
diff --git linux-libre-4.4.235-gnu/drivers/hid/hid-multitouch.c linux-libre-4.4.236-gnu/drivers/hid/hid-multitouch.c
index 56c4a81d3ea2..5187f3975c65 100644
--- linux-libre-4.4.235-gnu/drivers/hid/hid-multitouch.c
+++ linux-libre-4.4.236-gnu/drivers/hid/hid-multitouch.c
@@ -569,6 +569,8 @@ static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 	case HID_UP_BUTTON:
 		code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE);
 		hid_map_usage(hi, usage, bit, max, EV_KEY, code);
+		if (!*bit)
+			return -1;
 		input_set_capability(hi->input, EV_KEY, code);
 		return 1;
 
diff --git linux-libre-4.4.235-gnu/drivers/hwmon/applesmc.c linux-libre-4.4.236-gnu/drivers/hwmon/applesmc.c
index 0af7fd311979..587fc5c686b3 100644
--- linux-libre-4.4.235-gnu/drivers/hwmon/applesmc.c
+++ linux-libre-4.4.236-gnu/drivers/hwmon/applesmc.c
@@ -758,15 +758,18 @@ static ssize_t applesmc_light_show(struct device *dev,
 	}
 
 	ret = applesmc_read_key(LIGHT_SENSOR_LEFT_KEY, buffer, data_length);
+	if (ret)
+		goto out;
 	/* newer macbooks report a single 10-bit bigendian value */
 	if (data_length == 10) {
 		left = be16_to_cpu(*(__be16 *)(buffer + 6)) >> 2;
 		goto out;
 	}
 	left = buffer[2];
+
+	ret = applesmc_read_key(LIGHT_SENSOR_RIGHT_KEY, buffer, data_length);
 	if (ret)
 		goto out;
-	ret = applesmc_read_key(LIGHT_SENSOR_RIGHT_KEY, buffer, data_length);
 	right = buffer[2];
 
 out:
@@ -814,12 +817,11 @@ static ssize_t applesmc_show_fan_speed(struct device *dev,
 	sprintf(newkey, fan_speed_fmt[to_option(attr)], to_index(attr));
 
 	ret = applesmc_read_key(newkey, buffer, 2);
-	speed = ((buffer[0] << 8 | buffer[1]) >> 2);
-
 	if (ret)
 		return ret;
-	else
-		return snprintf(sysfsbuf, PAGE_SIZE, "%u\n", speed);
+
+	speed = ((buffer[0] << 8 | buffer[1]) >> 2);
+	return snprintf(sysfsbuf, PAGE_SIZE, "%u\n", speed);
 }
 
 static ssize_t applesmc_store_fan_speed(struct device *dev,
@@ -854,12 +856,11 @@ static ssize_t applesmc_show_fan_manual(struct device *dev,
 	u8 buffer[2];
 
 	ret = applesmc_read_key(FANS_MANUAL, buffer, 2);
-	manual = ((buffer[0] << 8 | buffer[1]) >> to_index(attr)) & 0x01;
-
 	if (ret)
 		return ret;
-	else
-		return snprintf(sysfsbuf, PAGE_SIZE, "%d\n", manual);
+
+	manual = ((buffer[0] << 8 | buffer[1]) >> to_index(attr)) & 0x01;
+	return snprintf(sysfsbuf, PAGE_SIZE, "%d\n", manual);
 }
 
 static ssize_t applesmc_store_fan_manual(struct device *dev,
@@ -875,10 +876,11 @@ static ssize_t applesmc_store_fan_manual(struct device *dev,
 		return -EINVAL;
 
 	ret = applesmc_read_key(FANS_MANUAL, buffer, 2);
-	val = (buffer[0] << 8 | buffer[1]);
 	if (ret)
 		goto out;
 
+	val = (buffer[0] << 8 | buffer[1]);
+
 	if (input)
 		val = val | (0x01 << to_index(attr));
 	else
@@ -954,13 +956,12 @@ static ssize_t applesmc_key_count_show(struct device *dev,
 	u32 count;
 
 	ret = applesmc_read_key(KEY_COUNT_KEY, buffer, 4);
-	count = ((u32)buffer[0]<<24) + ((u32)buffer[1]<<16) +
-						((u32)buffer[2]<<8) + buffer[3];
-
 	if (ret)
 		return ret;
-	else
-		return snprintf(sysfsbuf, PAGE_SIZE, "%d\n", count);
+
+	count = ((u32)buffer[0]<<24) + ((u32)buffer[1]<<16) +
+						((u32)buffer[2]<<8) + buffer[3];
+	return snprintf(sysfsbuf, PAGE_SIZE, "%d\n", count);
 }
 
 static ssize_t applesmc_key_at_index_read_show(struct device *dev,
diff --git linux-libre-4.4.235-gnu/drivers/iommu/intel_irq_remapping.c linux-libre-4.4.236-gnu/drivers/iommu/intel_irq_remapping.c
index ac596928f6b4..ce125ec23d2a 100644
--- linux-libre-4.4.235-gnu/drivers/iommu/intel_irq_remapping.c
+++ linux-libre-4.4.236-gnu/drivers/iommu/intel_irq_remapping.c
@@ -486,12 +486,18 @@ static void iommu_enable_irq_remapping(struct intel_iommu *iommu)
 
 	/* Enable interrupt-remapping */
 	iommu->gcmd |= DMA_GCMD_IRE;
-	iommu->gcmd &= ~DMA_GCMD_CFI;  /* Block compatibility-format MSIs */
 	writel(iommu->gcmd, iommu->reg + DMAR_GCMD_REG);
-
 	IOMMU_WAIT_OP(iommu, DMAR_GSTS_REG,
 		      readl, (sts & DMA_GSTS_IRES), sts);
 
+	/* Block compatibility-format MSIs */
+	if (sts & DMA_GSTS_CFIS) {
+		iommu->gcmd &= ~DMA_GCMD_CFI;
+		writel(iommu->gcmd, iommu->reg + DMAR_GCMD_REG);
+		IOMMU_WAIT_OP(iommu, DMAR_GSTS_REG,
+			      readl, !(sts & DMA_GSTS_CFIS), sts);
+	}
+
 	/*
 	 * With CFI clear in the Global Command register, we should be
 	 * protected from dangerous (i.e. compatibility) interrupts
diff --git linux-libre-4.4.235-gnu/drivers/md/dm-cache-metadata.c linux-libre-4.4.236-gnu/drivers/md/dm-cache-metadata.c
index 905badc6cb17..216675b96e02 100644
--- linux-libre-4.4.235-gnu/drivers/md/dm-cache-metadata.c
+++ linux-libre-4.4.236-gnu/drivers/md/dm-cache-metadata.c
@@ -501,12 +501,16 @@ static int __create_persistent_data_objects(struct dm_cache_metadata *cmd,
 					  CACHE_MAX_CONCURRENT_LOCKS);
 	if (IS_ERR(cmd->bm)) {
 		DMERR("could not create block manager");
-		return PTR_ERR(cmd->bm);
+		r = PTR_ERR(cmd->bm);
+		cmd->bm = NULL;
+		return r;
 	}
 
 	r = __open_or_format_metadata(cmd, may_format_device);
-	if (r)
+	if (r) {
 		dm_block_manager_destroy(cmd->bm);
+		cmd->bm = NULL;
+	}
 
 	return r;
 }
diff --git linux-libre-4.4.235-gnu/drivers/md/dm-thin-metadata.c linux-libre-4.4.236-gnu/drivers/md/dm-thin-metadata.c
index 2711aa965445..266d366fc2f0 100644
--- linux-libre-4.4.235-gnu/drivers/md/dm-thin-metadata.c
+++ linux-libre-4.4.236-gnu/drivers/md/dm-thin-metadata.c
@@ -700,12 +700,16 @@ static int __create_persistent_data_objects(struct dm_pool_metadata *pmd, bool f
 					  THIN_MAX_CONCURRENT_LOCKS);
 	if (IS_ERR(pmd->bm)) {
 		DMERR("could not create block manager");
-		return PTR_ERR(pmd->bm);
+		r = PTR_ERR(pmd->bm);
+		pmd->bm = NULL;
+		return r;
 	}
 
 	r = __open_or_format_metadata(pmd, format_device);
-	if (r)
+	if (r) {
 		dm_block_manager_destroy(pmd->bm);
+		pmd->bm = NULL;
+	}
 
 	return r;
 }
diff --git linux-libre-4.4.235-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt.c linux-libre-4.4.236-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index a3949c1a0c23..2da1c2294645 100644
--- linux-libre-4.4.235-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ linux-libre-4.4.236-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -4612,18 +4612,18 @@ static int __bnxt_open_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init)
 		}
 	}
 
-	bnxt_enable_napi(bp);
-
 	rc = bnxt_init_nic(bp, irq_re_init);
 	if (rc) {
 		netdev_err(bp->dev, "bnxt_init_nic err: %x\n", rc);
-		goto open_err;
+		goto open_err_irq;
 	}
 
+	bnxt_enable_napi(bp);
+
 	if (link_re_init) {
 		rc = bnxt_update_phy_setting(bp);
 		if (rc)
-			goto open_err;
+			netdev_warn(bp->dev, "failed to update phy settings\n");
 	}
 
 	if (irq_re_init) {
@@ -4644,9 +4644,6 @@ static int __bnxt_open_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init)
 
 	return 0;
 
-open_err:
-	bnxt_disable_napi(bp);
-
 open_err_irq:
 	bnxt_del_napi(bp);
 
diff --git linux-libre-4.4.235-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c linux-libre-4.4.236-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
index 45bd628eaf3a..416fb16686a6 100644
--- linux-libre-4.4.235-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+++ linux-libre-4.4.236-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
@@ -991,6 +991,9 @@ static int bnxt_get_nvram_directory(struct net_device *dev, u32 len, u8 *data)
 	if (rc != 0)
 		return rc;
 
+	if (!dir_entries || !entry_length)
+		return -EIO;
+
 	/* Insert 2 bytes of directory info (count and size of entries) */
 	if (len < 2)
 		return -EINVAL;
diff --git linux-libre-4.4.235-gnu/drivers/net/ethernet/broadcom/tg3.c linux-libre-4.4.236-gnu/drivers/net/ethernet/broadcom/tg3.c
index a329b5722b29..39a9d986933c 100644
--- linux-libre-4.4.235-gnu/drivers/net/ethernet/broadcom/tg3.c
+++ linux-libre-4.4.236-gnu/drivers/net/ethernet/broadcom/tg3.c
@@ -7194,8 +7194,8 @@ static inline void tg3_reset_task_schedule(struct tg3 *tp)
 
 static inline void tg3_reset_task_cancel(struct tg3 *tp)
 {
-	cancel_work_sync(&tp->reset_task);
-	tg3_flag_clear(tp, RESET_TASK_PENDING);
+	if (test_and_clear_bit(TG3_FLAG_RESET_TASK_PENDING, tp->tg3_flags))
+		cancel_work_sync(&tp->reset_task);
 	tg3_flag_clear(tp, TX_RECOVERY_PENDING);
 }
 
@@ -11167,18 +11167,27 @@ static void tg3_reset_task(struct work_struct *work)
 
 	tg3_halt(tp, RESET_KIND_SHUTDOWN, 0);
 	err = tg3_init_hw(tp, true);
-	if (err)
+	if (err) {
+		tg3_full_unlock(tp);
+		tp->irq_sync = 0;
+		tg3_napi_enable(tp);
+		/* Clear this flag so that tg3_reset_task_cancel() will not
+		 * call cancel_work_sync() and wait forever.
+		 */
+		tg3_flag_clear(tp, RESET_TASK_PENDING);
+		dev_close(tp->dev);
 		goto out;
+	}
 
 	tg3_netif_start(tp);
 
-out:
 	tg3_full_unlock(tp);
 
 	if (!err)
 		tg3_phy_start(tp);
 
 	tg3_flag_clear(tp, RESET_TASK_PENDING);
+out:
 	rtnl_unlock();
 }
 
diff --git linux-libre-4.4.235-gnu/drivers/net/ethernet/mellanox/mlx4/mr.c linux-libre-4.4.236-gnu/drivers/net/ethernet/mellanox/mlx4/mr.c
index 53833c06696f..00a105c63567 100644
--- linux-libre-4.4.235-gnu/drivers/net/ethernet/mellanox/mlx4/mr.c
+++ linux-libre-4.4.236-gnu/drivers/net/ethernet/mellanox/mlx4/mr.c
@@ -114,7 +114,7 @@ static int mlx4_buddy_init(struct mlx4_buddy *buddy, int max_order)
 		goto err_out;
 
 	for (i = 0; i <= buddy->max_order; ++i) {
-		s = BITS_TO_LONGS(1 << (buddy->max_order - i));
+		s = BITS_TO_LONGS(1UL << (buddy->max_order - i));
 		buddy->bits[i] = kcalloc(s, sizeof (long), GFP_KERNEL | __GFP_NOWARN);
 		if (!buddy->bits[i]) {
 			buddy->bits[i] = vzalloc(s * sizeof(long));
diff --git linux-libre-4.4.235-gnu/drivers/net/ethernet/renesas/ravb_main.c linux-libre-4.4.236-gnu/drivers/net/ethernet/renesas/ravb_main.c
index 460b29ac5fd8..d5bf0f275307 100644
--- linux-libre-4.4.235-gnu/drivers/net/ethernet/renesas/ravb_main.c
+++ linux-libre-4.4.236-gnu/drivers/net/ethernet/renesas/ravb_main.c
@@ -1214,12 +1214,64 @@ static const struct ethtool_ops ravb_ethtool_ops = {
 	.get_ts_info		= ravb_get_ts_info,
 };
 
+/* MDIO bus init function */
+static int ravb_mdio_init(struct ravb_private *priv)
+{
+	struct platform_device *pdev = priv->pdev;
+	struct device *dev = &pdev->dev;
+	int error;
+
+	/* Bitbang init */
+	priv->mdiobb.ops = &bb_ops;
+
+	/* MII controller setting */
+	priv->mii_bus = alloc_mdio_bitbang(&priv->mdiobb);
+	if (!priv->mii_bus)
+		return -ENOMEM;
+
+	/* Hook up MII support for ethtool */
+	priv->mii_bus->name = "ravb_mii";
+	priv->mii_bus->parent = dev;
+	snprintf(priv->mii_bus->id, MII_BUS_ID_SIZE, "%s-%x",
+		 pdev->name, pdev->id);
+
+	/* Register MDIO bus */
+	error = of_mdiobus_register(priv->mii_bus, dev->of_node);
+	if (error)
+		goto out_free_bus;
+
+	return 0;
+
+out_free_bus:
+	free_mdio_bitbang(priv->mii_bus);
+	return error;
+}
+
+/* MDIO bus release function */
+static int ravb_mdio_release(struct ravb_private *priv)
+{
+	/* Unregister mdio bus */
+	mdiobus_unregister(priv->mii_bus);
+
+	/* Free bitbang info */
+	free_mdio_bitbang(priv->mii_bus);
+
+	return 0;
+}
+
 /* Network device open function for Ethernet AVB */
 static int ravb_open(struct net_device *ndev)
 {
 	struct ravb_private *priv = netdev_priv(ndev);
 	int error;
 
+	/* MDIO bus init */
+	error = ravb_mdio_init(priv);
+	if (error) {
+		netdev_err(ndev, "failed to initialize MDIO\n");
+		return error;
+	}
+
 	napi_enable(&priv->napi[RAVB_BE]);
 	napi_enable(&priv->napi[RAVB_NC]);
 
@@ -1268,6 +1320,7 @@ out_free_irq:
 out_napi_off:
 	napi_disable(&priv->napi[RAVB_NC]);
 	napi_disable(&priv->napi[RAVB_BE]);
+	ravb_mdio_release(priv);
 	return error;
 }
 
@@ -1561,6 +1614,8 @@ static int ravb_close(struct net_device *ndev)
 	ravb_ring_free(ndev, RAVB_BE);
 	ravb_ring_free(ndev, RAVB_NC);
 
+	ravb_mdio_release(priv);
+
 	return 0;
 }
 
@@ -1664,51 +1719,6 @@ static const struct net_device_ops ravb_netdev_ops = {
 	.ndo_change_mtu		= eth_change_mtu,
 };
 
-/* MDIO bus init function */
-static int ravb_mdio_init(struct ravb_private *priv)
-{
-	struct platform_device *pdev = priv->pdev;
-	struct device *dev = &pdev->dev;
-	int error;
-
-	/* Bitbang init */
-	priv->mdiobb.ops = &bb_ops;
-
-	/* MII controller setting */
-	priv->mii_bus = alloc_mdio_bitbang(&priv->mdiobb);
-	if (!priv->mii_bus)
-		return -ENOMEM;
-
-	/* Hook up MII support for ethtool */
-	priv->mii_bus->name = "ravb_mii";
-	priv->mii_bus->parent = dev;
-	snprintf(priv->mii_bus->id, MII_BUS_ID_SIZE, "%s-%x",
-		 pdev->name, pdev->id);
-
-	/* Register MDIO bus */
-	error = of_mdiobus_register(priv->mii_bus, dev->of_node);
-	if (error)
-		goto out_free_bus;
-
-	return 0;
-
-out_free_bus:
-	free_mdio_bitbang(priv->mii_bus);
-	return error;
-}
-
-/* MDIO bus release function */
-static int ravb_mdio_release(struct ravb_private *priv)
-{
-	/* Unregister mdio bus */
-	mdiobus_unregister(priv->mii_bus);
-
-	/* Free bitbang info */
-	free_mdio_bitbang(priv->mii_bus);
-
-	return 0;
-}
-
 static const struct of_device_id ravb_match_table[] = {
 	{ .compatible = "renesas,etheravb-r8a7790", .data = (void *)RCAR_GEN2 },
 	{ .compatible = "renesas,etheravb-r8a7794", .data = (void *)RCAR_GEN2 },
@@ -1847,13 +1857,6 @@ static int ravb_probe(struct platform_device *pdev)
 		eth_hw_addr_random(ndev);
 	}
 
-	/* MDIO bus init */
-	error = ravb_mdio_init(priv);
-	if (error) {
-		dev_err(&pdev->dev, "failed to initialize MDIO\n");
-		goto out_dma_free;
-	}
-
 	netif_napi_add(ndev, &priv->napi[RAVB_BE], ravb_poll, 64);
 	netif_napi_add(ndev, &priv->napi[RAVB_NC], ravb_poll, 64);
 
@@ -1873,8 +1876,6 @@ static int ravb_probe(struct platform_device *pdev)
 out_napi_del:
 	netif_napi_del(&priv->napi[RAVB_NC]);
 	netif_napi_del(&priv->napi[RAVB_BE]);
-	ravb_mdio_release(priv);
-out_dma_free:
 	dma_free_coherent(ndev->dev.parent, priv->desc_bat_size, priv->desc_bat,
 			  priv->desc_bat_dma);
 out_release:
@@ -1899,7 +1900,6 @@ static int ravb_remove(struct platform_device *pdev)
 	unregister_netdev(ndev);
 	netif_napi_del(&priv->napi[RAVB_NC]);
 	netif_napi_del(&priv->napi[RAVB_BE]);
-	ravb_mdio_release(priv);
 	pm_runtime_disable(&pdev->dev);
 	free_netdev(ndev);
 	platform_set_drvdata(pdev, NULL);
diff --git linux-libre-4.4.235-gnu/drivers/net/usb/asix_common.c linux-libre-4.4.236-gnu/drivers/net/usb/asix_common.c
index 2092ef6431f2..712765976a22 100644
--- linux-libre-4.4.235-gnu/drivers/net/usb/asix_common.c
+++ linux-libre-4.4.236-gnu/drivers/net/usb/asix_common.c
@@ -251,7 +251,7 @@ int asix_read_phy_addr(struct usbnet *dev, int internal)
 
 	netdev_dbg(dev->net, "asix_get_phy_addr()\n");
 
-	if (ret < 0) {
+	if (ret < 2) {
 		netdev_err(dev->net, "Error reading PHYID register: %02x\n", ret);
 		goto out;
 	}
diff --git linux-libre-4.4.235-gnu/drivers/net/usb/dm9601.c linux-libre-4.4.236-gnu/drivers/net/usb/dm9601.c
index 0b4bdd39106b..fb18801d0fe7 100644
--- linux-libre-4.4.235-gnu/drivers/net/usb/dm9601.c
+++ linux-libre-4.4.236-gnu/drivers/net/usb/dm9601.c
@@ -624,6 +624,10 @@ static const struct usb_device_id products[] = {
 	 USB_DEVICE(0x0a46, 0x1269),	/* DM9621A USB to Fast Ethernet Adapter */
 	 .driver_info = (unsigned long)&dm9601_info,
 	},
+	{
+	 USB_DEVICE(0x0586, 0x3427),	/* ZyXEL Keenetic Plus DSL xDSL modem */
+	 .driver_info = (unsigned long)&dm9601_info,
+	},
 	{},			// END
 };
 
diff --git linux-libre-4.4.235-gnu/drivers/net/usb/qmi_wwan.c linux-libre-4.4.236-gnu/drivers/net/usb/qmi_wwan.c
index 4391430e2527..14eca1f80ce3 100644
--- linux-libre-4.4.235-gnu/drivers/net/usb/qmi_wwan.c
+++ linux-libre-4.4.236-gnu/drivers/net/usb/qmi_wwan.c
@@ -14,7 +14,9 @@
 #include <linux/netdevice.h>
 #include <linux/ethtool.h>
 #include <linux/etherdevice.h>
+#include <linux/if_arp.h>
 #include <linux/mii.h>
+#include <linux/rtnetlink.h>
 #include <linux/usb.h>
 #include <linux/usb/cdc.h>
 #include <linux/usb/usbnet.h>
@@ -48,11 +50,104 @@
 struct qmi_wwan_state {
 	struct usb_driver *subdriver;
 	atomic_t pmcount;
-	unsigned long unused;
+	unsigned long flags;
 	struct usb_interface *control;
 	struct usb_interface *data;
 };
 
+enum qmi_wwan_flags {
+	QMI_WWAN_FLAG_RAWIP = 1 << 0,
+};
+
+enum qmi_wwan_quirks {
+	QMI_WWAN_QUIRK_DTR = 1 << 0,	/* needs "set DTR" request */
+};
+
+static void qmi_wwan_netdev_setup(struct net_device *net)
+{
+	struct usbnet *dev = netdev_priv(net);
+	struct qmi_wwan_state *info = (void *)&dev->data;
+
+	if (info->flags & QMI_WWAN_FLAG_RAWIP) {
+		net->header_ops      = NULL;  /* No header */
+		net->type            = ARPHRD_NONE;
+		net->hard_header_len = 0;
+		net->addr_len        = 0;
+		net->flags           = IFF_POINTOPOINT | IFF_NOARP | IFF_MULTICAST;
+		netdev_dbg(net, "mode: raw IP\n");
+	} else if (!net->header_ops) { /* don't bother if already set */
+		ether_setup(net);
+		netdev_dbg(net, "mode: Ethernet\n");
+	}
+
+	/* recalculate buffers after changing hard_header_len */
+	usbnet_change_mtu(net, net->mtu);
+}
+
+static ssize_t raw_ip_show(struct device *d, struct device_attribute *attr, char *buf)
+{
+	struct usbnet *dev = netdev_priv(to_net_dev(d));
+	struct qmi_wwan_state *info = (void *)&dev->data;
+
+	return sprintf(buf, "%c\n", info->flags & QMI_WWAN_FLAG_RAWIP ? 'Y' : 'N');
+}
+
+static ssize_t raw_ip_store(struct device *d,  struct device_attribute *attr, const char *buf, size_t len)
+{
+	struct usbnet *dev = netdev_priv(to_net_dev(d));
+	struct qmi_wwan_state *info = (void *)&dev->data;
+	bool enable;
+	int ret;
+
+	if (strtobool(buf, &enable))
+		return -EINVAL;
+
+	/* no change? */
+	if (enable == (info->flags & QMI_WWAN_FLAG_RAWIP))
+		return len;
+
+	if (!rtnl_trylock())
+		return restart_syscall();
+
+	/* we don't want to modify a running netdev */
+	if (netif_running(dev->net)) {
+		netdev_err(dev->net, "Cannot change a running device\n");
+		ret = -EBUSY;
+		goto err;
+	}
+
+	/* let other drivers deny the change */
+	ret = call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE, dev->net);
+	ret = notifier_to_errno(ret);
+	if (ret) {
+		netdev_err(dev->net, "Type change was refused\n");
+		goto err;
+	}
+
+	if (enable)
+		info->flags |= QMI_WWAN_FLAG_RAWIP;
+	else
+		info->flags &= ~QMI_WWAN_FLAG_RAWIP;
+	qmi_wwan_netdev_setup(dev->net);
+	call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE, dev->net);
+	ret = len;
+err:
+	rtnl_unlock();
+	return ret;
+}
+
+static DEVICE_ATTR_RW(raw_ip);
+
+static struct attribute *qmi_wwan_sysfs_attrs[] = {
+	&dev_attr_raw_ip.attr,
+	NULL,
+};
+
+static struct attribute_group qmi_wwan_sysfs_attr_group = {
+	.name = "qmi",
+	.attrs = qmi_wwan_sysfs_attrs,
+};
+
 /* default ethernet address used by the modem */
 static const u8 default_modem_addr[ETH_ALEN] = {0x02, 0x50, 0xf3};
 
@@ -80,6 +175,8 @@ static const u8 buggy_fw_addr[ETH_ALEN] = {0x00, 0xa0, 0xc6, 0x00, 0x00, 0x00};
  */
 static int qmi_wwan_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
 {
+	struct qmi_wwan_state *info = (void *)&dev->data;
+	bool rawip = info->flags & QMI_WWAN_FLAG_RAWIP;
 	__be16 proto;
 
 	/* This check is no longer done by usbnet */
@@ -94,15 +191,25 @@ static int qmi_wwan_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
 		proto = htons(ETH_P_IPV6);
 		break;
 	case 0x00:
+		if (rawip)
+			return 0;
 		if (is_multicast_ether_addr(skb->data))
 			return 1;
 		/* possibly bogus destination - rewrite just in case */
 		skb_reset_mac_header(skb);
 		goto fix_dest;
 	default:
+		if (rawip)
+			return 0;
 		/* pass along other packets without modifications */
 		return 1;
 	}
+	if (rawip) {
+		skb->dev = dev->net; /* normally set by eth_type_trans */
+		skb->protocol = proto;
+		return 1;
+	}
+
 	if (skb_headroom(skb) < ETH_HLEN)
 		return 0;
 	skb_push(skb, ETH_HLEN);
@@ -223,6 +330,20 @@ err:
 	return rv;
 }
 
+/* Send CDC SetControlLineState request, setting or clearing the DTR.
+ * "Required for Autoconnect and 9x30 to wake up" according to the
+ * GobiNet driver. The requirement has been verified on an MDM9230
+ * based Sierra Wireless MC7455
+ */
+static int qmi_wwan_change_dtr(struct usbnet *dev, bool on)
+{
+	u8 intf = dev->intf->cur_altsetting->desc.bInterfaceNumber;
+
+	return usbnet_write_cmd(dev, USB_CDC_REQ_SET_CONTROL_LINE_STATE,
+				USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+				on ? 0x01 : 0x00, intf, NULL, 0);
+}
+
 static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf)
 {
 	int status = -1;
@@ -257,7 +378,10 @@ static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf)
 				"bogus CDC Union: master=%u, slave=%u\n",
 				cdc_union->bMasterInterface0,
 				cdc_union->bSlaveInterface0);
-			goto err;
+
+			/* ignore and continue... */
+			cdc_union = NULL;
+			info->data = intf;
 		}
 	}
 
@@ -280,6 +404,29 @@ static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf)
 		usb_driver_release_interface(driver, info->data);
 	}
 
+	/* disabling remote wakeup on MDM9x30 devices has the same
+	 * effect as clearing DTR. The device will not respond to QMI
+	 * requests until we set DTR again.  This is similar to a
+	 * QMI_CTL SYNC request, clearing a lot of firmware state
+	 * including the client ID allocations.
+	 *
+	 * Our usage model allows a session to span multiple
+	 * open/close events, so we must prevent the firmware from
+	 * clearing out state the clients might need.
+	 *
+	 * MDM9x30 is the first QMI chipset with USB3 support. Abuse
+	 * this fact to enable the quirk for all USB3 devices.
+	 *
+	 * There are also chipsets with the same "set DTR" requirement
+	 * but without USB3 support.  Devices based on these chips
+	 * need a quirk flag in the device ID table.
+	 */
+	if (dev->driver_info->data & QMI_WWAN_QUIRK_DTR ||
+	    le16_to_cpu(dev->udev->descriptor.bcdUSB) >= 0x0201) {
+		qmi_wwan_manage_power(dev, 1);
+		qmi_wwan_change_dtr(dev, true);
+	}
+
 	/* Never use the same address on both ends of the link, even if the
 	 * buggy firmware told us to. Or, if device is assigned the well-known
 	 * buggy firmware MAC address, replace it with a random address,
@@ -294,6 +441,7 @@ static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf)
 		dev->net->dev_addr[0] &= 0xbf;	/* clear "IP" bit */
 	}
 	dev->net->netdev_ops = &qmi_wwan_netdev_ops;
+	dev->net->sysfs_groups[0] = &qmi_wwan_sysfs_attr_group;
 err:
 	return status;
 }
@@ -307,6 +455,12 @@ static void qmi_wwan_unbind(struct usbnet *dev, struct usb_interface *intf)
 	if (info->subdriver && info->subdriver->disconnect)
 		info->subdriver->disconnect(info->control);
 
+	/* disable MDM9x30 quirk */
+	if (le16_to_cpu(dev->udev->descriptor.bcdUSB) >= 0x0201) {
+		qmi_wwan_change_dtr(dev, false);
+		qmi_wwan_manage_power(dev, 0);
+	}
+
 	/* allow user to unbind using either control or data */
 	if (intf == info->control)
 		other = info->data;
@@ -381,6 +535,16 @@ static const struct driver_info	qmi_wwan_info = {
 	.rx_fixup       = qmi_wwan_rx_fixup,
 };
 
+static const struct driver_info	qmi_wwan_info_quirk_dtr = {
+	.description	= "WWAN/QMI device",
+	.flags		= FLAG_WWAN,
+	.bind		= qmi_wwan_bind,
+	.unbind		= qmi_wwan_unbind,
+	.manage_power	= qmi_wwan_manage_power,
+	.rx_fixup       = qmi_wwan_rx_fixup,
+	.data           = QMI_WWAN_QUIRK_DTR,
+};
+
 #define HUAWEI_VENDOR_ID	0x12D1
 
 /* map QMI/wwan function by a fixed interface number */
@@ -388,6 +552,11 @@ static const struct driver_info	qmi_wwan_info = {
 	USB_DEVICE_INTERFACE_NUMBER(vend, prod, num), \
 	.driver_info = (unsigned long)&qmi_wwan_info
 
+/* devices requiring "set DTR" quirk */
+#define QMI_QUIRK_SET_DTR(vend, prod, num) \
+	USB_DEVICE_INTERFACE_NUMBER(vend, prod, num), \
+	.driver_info = (unsigned long)&qmi_wwan_info_quirk_dtr
+
 /* Gobi 1000 QMI/wwan interface number is 3 according to qcserial */
 #define QMI_GOBI1K_DEVICE(vend, prod) \
 	QMI_FIXED_INTF(vend, prod, 3)
@@ -717,6 +886,7 @@ static const struct usb_device_id products[] = {
 	{QMI_FIXED_INTF(0x19d2, 0x2002, 4)},	/* ZTE (Vodafone) K3765-Z */
 	{QMI_FIXED_INTF(0x2001, 0x7e19, 4)},	/* D-Link DWM-221 B1 */
 	{QMI_FIXED_INTF(0x2001, 0x7e35, 4)},	/* D-Link DWM-222 */
+	{QMI_FIXED_INTF(0x2001, 0x7e3d, 4)},	/* D-Link DWM-222 A2 */
 	{QMI_FIXED_INTF(0x2020, 0x2031, 4)},	/* Olicard 600 */
 	{QMI_FIXED_INTF(0x2020, 0x2033, 4)},	/* BroadMobi BM806U */
 	{QMI_FIXED_INTF(0x2020, 0x2060, 4)},	/* BroadMobi BM818 */
@@ -750,8 +920,11 @@ static const struct usb_device_id products[] = {
 	{QMI_FIXED_INTF(0x1bbb, 0x0203, 2)},	/* Alcatel L800MA */
 	{QMI_FIXED_INTF(0x2357, 0x0201, 4)},	/* TP-LINK HSUPA Modem MA180 */
 	{QMI_FIXED_INTF(0x2357, 0x9000, 4)},	/* TP-LINK MA260 */
+	{QMI_QUIRK_SET_DTR(0x1bc7, 0x1040, 2)},	/* Telit LE922A */
+	{QMI_QUIRK_SET_DTR(0x1bc7, 0x1050, 2)},	/* Telit FN980 */
+	{QMI_FIXED_INTF(0x1bc7, 0x1100, 3)},	/* Telit ME910 */
 	{QMI_FIXED_INTF(0x1bc7, 0x1200, 5)},	/* Telit LE920 */
-	{QMI_FIXED_INTF(0x1bc7, 0x1201, 2)},	/* Telit LE920 */
+	{QMI_QUIRK_SET_DTR(0x1bc7, 0x1201, 2)},	/* Telit LE920, LE920A4 */
 	{QMI_FIXED_INTF(0x1c9e, 0x9b01, 3)},	/* XS Stick W100-2 from 4G Systems */
 	{QMI_FIXED_INTF(0x0b3c, 0xc000, 4)},	/* Olivetti Olicard 100 */
 	{QMI_FIXED_INTF(0x0b3c, 0xc001, 4)},	/* Olivetti Olicard 120 */
@@ -762,16 +935,22 @@ static const struct usb_device_id products[] = {
 	{QMI_FIXED_INTF(0x0b3c, 0xc00b, 4)},	/* Olivetti Olicard 500 */
 	{QMI_FIXED_INTF(0x1e2d, 0x0060, 4)},	/* Cinterion PLxx */
 	{QMI_FIXED_INTF(0x1e2d, 0x0053, 4)},	/* Cinterion PHxx,PXxx */
+	{QMI_FIXED_INTF(0x1e2d, 0x0082, 4)},	/* Cinterion PHxx,PXxx (2 RmNet) */
+	{QMI_FIXED_INTF(0x1e2d, 0x0082, 5)},	/* Cinterion PHxx,PXxx (2 RmNet) */
+	{QMI_FIXED_INTF(0x1e2d, 0x0083, 4)},	/* Cinterion PHxx,PXxx (1 RmNet + USB Audio)*/
 	{QMI_FIXED_INTF(0x413c, 0x81a2, 8)},	/* Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card */
 	{QMI_FIXED_INTF(0x413c, 0x81a3, 8)},	/* Dell Wireless 5570 HSPA+ (42Mbps) Mobile Broadband Card */
 	{QMI_FIXED_INTF(0x413c, 0x81a4, 8)},	/* Dell Wireless 5570e HSPA+ (42Mbps) Mobile Broadband Card */
 	{QMI_FIXED_INTF(0x413c, 0x81a8, 8)},	/* Dell Wireless 5808 Gobi(TM) 4G LTE Mobile Broadband Card */
 	{QMI_FIXED_INTF(0x413c, 0x81a9, 8)},	/* Dell Wireless 5808e Gobi(TM) 4G LTE Mobile Broadband Card */
 	{QMI_FIXED_INTF(0x413c, 0x81b1, 8)},	/* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card */
+	{QMI_FIXED_INTF(0x413c, 0x81b3, 8)},	/* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card (rev3) */
 	{QMI_FIXED_INTF(0x03f0, 0x4e1d, 8)},	/* HP lt4111 LTE/EV-DO/HSPA+ Gobi 4G Module */
 	{QMI_FIXED_INTF(0x03f0, 0x9d1d, 1)},	/* HP lt4120 Snapdragon X5 LTE */
 	{QMI_FIXED_INTF(0x22de, 0x9061, 3)},	/* WeTelecom WPD-600N */
 	{QMI_FIXED_INTF(0x1e0e, 0x9001, 5)},	/* SIMCom 7230E */
+	{QMI_QUIRK_SET_DTR(0x2c7c, 0x0125, 4)},	/* Quectel EC25, EC20 R2.0  Mini PCIe */
+	{QMI_QUIRK_SET_DTR(0x2c7c, 0x0121, 4)},	/* Quectel EC21 Mini PCIe */
 
 	/* 4. Gobi 1000 devices */
 	{QMI_GOBI1K_DEVICE(0x05c6, 0x9212)},	/* Acer Gobi Modem Device */
diff --git linux-libre-4.4.235-gnu/drivers/thermal/ti-soc-thermal/omap4-thermal-data.c linux-libre-4.4.236-gnu/drivers/thermal/ti-soc-thermal/omap4-thermal-data.c
index d255d33da9eb..02e71d461d5c 100644
--- linux-libre-4.4.235-gnu/drivers/thermal/ti-soc-thermal/omap4-thermal-data.c
+++ linux-libre-4.4.236-gnu/drivers/thermal/ti-soc-thermal/omap4-thermal-data.c
@@ -49,20 +49,21 @@ static struct temp_sensor_data omap4430_mpu_temp_sensor_data = {
 
 /*
  * Temperature values in milli degree celsius
- * ADC code values from 530 to 923
+ * ADC code values from 13 to 107, see TRM
+ * "18.4.10.2.3 ADC Codes Versus Temperature".
  */
 static const int
 omap4430_adc_to_temp[OMAP4430_ADC_END_VALUE - OMAP4430_ADC_START_VALUE + 1] = {
-	-38000, -35000, -34000, -32000, -30000, -28000, -26000, -24000, -22000,
-	-20000, -18000, -17000, -15000, -13000, -12000, -10000, -8000, -6000,
-	-5000, -3000, -1000, 0, 2000, 3000, 5000, 6000, 8000, 10000, 12000,
-	13000, 15000, 17000, 19000, 21000, 23000, 25000, 27000, 28000, 30000,
-	32000, 33000, 35000, 37000, 38000, 40000, 42000, 43000, 45000, 47000,
-	48000, 50000, 52000, 53000, 55000, 57000, 58000, 60000, 62000, 64000,
-	66000, 68000, 70000, 71000, 73000, 75000, 77000, 78000, 80000, 82000,
-	83000, 85000, 87000, 88000, 90000, 92000, 93000, 95000, 97000, 98000,
-	100000, 102000, 103000, 105000, 107000, 109000, 111000, 113000, 115000,
-	117000, 118000, 120000, 122000, 123000,
+	-40000, -38000, -35000, -34000, -32000, -30000, -28000, -26000, -24000,
+	-22000,	-20000, -18500, -17000, -15000, -13500, -12000, -10000, -8000,
+	-6500, -5000, -3500, -1500, 0, 2000, 3500, 5000, 6500, 8500, 10000,
+	12000, 13500, 15000, 17000, 19000, 21000, 23000, 25000, 27000, 28500,
+	30000, 32000, 33500, 35000, 37000, 38500, 40000, 42000, 43500, 45000,
+	47000, 48500, 50000, 52000, 53500, 55000, 57000, 58500, 60000, 62000,
+	64000, 66000, 68000, 70000, 71500, 73500, 75000, 77000, 78500, 80000,
+	82000, 83500, 85000, 87000, 88500, 90000, 92000, 93500, 95000, 97000,
+	98500, 100000, 102000, 103500, 105000, 107000, 109000, 111000, 113000,
+	115000, 117000, 118500, 120000, 122000, 123500, 125000,
 };
 
 /* OMAP4430 data */
diff --git linux-libre-4.4.235-gnu/drivers/thermal/ti-soc-thermal/omap4xxx-bandgap.h linux-libre-4.4.236-gnu/drivers/thermal/ti-soc-thermal/omap4xxx-bandgap.h
index 6f2de3a3356d..86850082b24b 100644
--- linux-libre-4.4.235-gnu/drivers/thermal/ti-soc-thermal/omap4xxx-bandgap.h
+++ linux-libre-4.4.236-gnu/drivers/thermal/ti-soc-thermal/omap4xxx-bandgap.h
@@ -67,9 +67,13 @@
  * and thresholds for OMAP4430.
  */
 
-/* ADC conversion table limits */
-#define OMAP4430_ADC_START_VALUE			0
-#define OMAP4430_ADC_END_VALUE				127
+/*
+ * ADC conversion table limits. Ignore values outside the TRM listed
+ * range to avoid bogus thermal shutdowns. See omap4430 TRM chapter
+ * "18.4.10.2.3 ADC Codes Versus Temperature".
+ */
+#define OMAP4430_ADC_START_VALUE			13
+#define OMAP4430_ADC_END_VALUE				107
 /* bandgap clock limits (no control on 4430) */
 #define OMAP4430_MAX_FREQ				32768
 #define OMAP4430_MIN_FREQ				32768
diff --git linux-libre-4.4.235-gnu/drivers/xen/xenbus/xenbus_client.c linux-libre-4.4.236-gnu/drivers/xen/xenbus/xenbus_client.c
index df27cefb2fa3..266f446ba331 100644
--- linux-libre-4.4.235-gnu/drivers/xen/xenbus/xenbus_client.c
+++ linux-libre-4.4.236-gnu/drivers/xen/xenbus/xenbus_client.c
@@ -384,8 +384,14 @@ int xenbus_grant_ring(struct xenbus_device *dev, void *vaddr,
 	int i, j;
 
 	for (i = 0; i < nr_pages; i++) {
-		err = gnttab_grant_foreign_access(dev->otherend_id,
-						  virt_to_gfn(vaddr), 0);
+		unsigned long gfn;
+
+		if (is_vmalloc_addr(vaddr))
+			gfn = pfn_to_gfn(vmalloc_to_pfn(vaddr));
+		else
+			gfn = virt_to_gfn(vaddr);
+
+		err = gnttab_grant_foreign_access(dev->otherend_id, gfn, 0);
 		if (err < 0) {
 			xenbus_dev_fatal(dev, err,
 					 "granting access to ring page");
diff --git linux-libre-4.4.235-gnu/fs/affs/amigaffs.c linux-libre-4.4.236-gnu/fs/affs/amigaffs.c
index 5fa92bc790ef..c1b344e56e85 100644
--- linux-libre-4.4.235-gnu/fs/affs/amigaffs.c
+++ linux-libre-4.4.236-gnu/fs/affs/amigaffs.c
@@ -390,23 +390,23 @@ prot_to_mode(u32 prot)
 	umode_t mode = 0;
 
 	if (!(prot & FIBF_NOWRITE))
-		mode |= S_IWUSR;
+		mode |= 0200;
 	if (!(prot & FIBF_NOREAD))
-		mode |= S_IRUSR;
+		mode |= 0400;
 	if (!(prot & FIBF_NOEXECUTE))
-		mode |= S_IXUSR;
+		mode |= 0100;
 	if (prot & FIBF_GRP_WRITE)
-		mode |= S_IWGRP;
+		mode |= 0020;
 	if (prot & FIBF_GRP_READ)
-		mode |= S_IRGRP;
+		mode |= 0040;
 	if (prot & FIBF_GRP_EXECUTE)
-		mode |= S_IXGRP;
+		mode |= 0010;
 	if (prot & FIBF_OTR_WRITE)
-		mode |= S_IWOTH;
+		mode |= 0002;
 	if (prot & FIBF_OTR_READ)
-		mode |= S_IROTH;
+		mode |= 0004;
 	if (prot & FIBF_OTR_EXECUTE)
-		mode |= S_IXOTH;
+		mode |= 0001;
 
 	return mode;
 }
@@ -417,24 +417,51 @@ mode_to_prot(struct inode *inode)
 	u32 prot = AFFS_I(inode)->i_protect;
 	umode_t mode = inode->i_mode;
 
-	if (!(mode & S_IXUSR))
+	/*
+	 * First, clear all RWED bits for owner, group, other.
+	 * Then, recalculate them afresh.
+	 *
+	 * We'll always clear the delete-inhibit bit for the owner, as that is
+	 * the classic single-user mode AmigaOS protection bit and we need to
+	 * stay compatible with all scenarios.
+	 *
+	 * Since multi-user AmigaOS is an extension, we'll only set the
+	 * delete-allow bit if any of the other bits in the same user class
+	 * (group/other) are used.
+	 */
+	prot &= ~(FIBF_NOEXECUTE | FIBF_NOREAD
+		  | FIBF_NOWRITE | FIBF_NODELETE
+		  | FIBF_GRP_EXECUTE | FIBF_GRP_READ
+		  | FIBF_GRP_WRITE   | FIBF_GRP_DELETE
+		  | FIBF_OTR_EXECUTE | FIBF_OTR_READ
+		  | FIBF_OTR_WRITE   | FIBF_OTR_DELETE);
+
+	/* Classic single-user AmigaOS flags. These are inverted. */
+	if (!(mode & 0100))
 		prot |= FIBF_NOEXECUTE;
-	if (!(mode & S_IRUSR))
+	if (!(mode & 0400))
 		prot |= FIBF_NOREAD;
-	if (!(mode & S_IWUSR))
+	if (!(mode & 0200))
 		prot |= FIBF_NOWRITE;
-	if (mode & S_IXGRP)
+
+	/* Multi-user extended flags. Not inverted. */
+	if (mode & 0010)
 		prot |= FIBF_GRP_EXECUTE;
-	if (mode & S_IRGRP)
+	if (mode & 0040)
 		prot |= FIBF_GRP_READ;
-	if (mode & S_IWGRP)
+	if (mode & 0020)
 		prot |= FIBF_GRP_WRITE;
-	if (mode & S_IXOTH)
+	if (mode & 0070)
+		prot |= FIBF_GRP_DELETE;
+
+	if (mode & 0001)
 		prot |= FIBF_OTR_EXECUTE;
-	if (mode & S_IROTH)
+	if (mode & 0004)
 		prot |= FIBF_OTR_READ;
-	if (mode & S_IWOTH)
+	if (mode & 0002)
 		prot |= FIBF_OTR_WRITE;
+	if (mode & 0007)
+		prot |= FIBF_OTR_DELETE;
 
 	AFFS_I(inode)->i_protect = prot;
 }
diff --git linux-libre-4.4.235-gnu/fs/affs/file.c linux-libre-4.4.236-gnu/fs/affs/file.c
index 659c579c4588..38e0fd4caf2b 100644
--- linux-libre-4.4.235-gnu/fs/affs/file.c
+++ linux-libre-4.4.236-gnu/fs/affs/file.c
@@ -426,6 +426,24 @@ static int affs_write_begin(struct file *file, struct address_space *mapping,
 	return ret;
 }
 
+static int affs_write_end(struct file *file, struct address_space *mapping,
+			  loff_t pos, unsigned int len, unsigned int copied,
+			  struct page *page, void *fsdata)
+{
+	struct inode *inode = mapping->host;
+	int ret;
+
+	ret = generic_write_end(file, mapping, pos, len, copied, page, fsdata);
+
+	/* Clear Archived bit on file writes, as AmigaOS would do */
+	if (AFFS_I(inode)->i_protect & FIBF_ARCHIVED) {
+		AFFS_I(inode)->i_protect &= ~FIBF_ARCHIVED;
+		mark_inode_dirty(inode);
+	}
+
+	return ret;
+}
+
 static sector_t _affs_bmap(struct address_space *mapping, sector_t block)
 {
 	return generic_block_bmap(mapping,block,affs_get_block);
@@ -435,7 +453,7 @@ const struct address_space_operations affs_aops = {
 	.readpage = affs_readpage,
 	.writepage = affs_writepage,
 	.write_begin = affs_write_begin,
-	.write_end = generic_write_end,
+	.write_end = affs_write_end,
 	.direct_IO = affs_direct_IO,
 	.bmap = _affs_bmap
 };
@@ -793,6 +811,12 @@ done:
 	if (tmp > inode->i_size)
 		inode->i_size = AFFS_I(inode)->mmu_private = tmp;
 
+	/* Clear Archived bit on file writes, as AmigaOS would do */
+	if (AFFS_I(inode)->i_protect & FIBF_ARCHIVED) {
+		AFFS_I(inode)->i_protect &= ~FIBF_ARCHIVED;
+		mark_inode_dirty(inode);
+	}
+
 err_first_bh:
 	unlock_page(page);
 	page_cache_release(page);
diff --git linux-libre-4.4.235-gnu/fs/btrfs/ctree.c linux-libre-4.4.236-gnu/fs/btrfs/ctree.c
index 8eac5f75bca3..3fa0515d7685 100644
--- linux-libre-4.4.235-gnu/fs/btrfs/ctree.c
+++ linux-libre-4.4.236-gnu/fs/btrfs/ctree.c
@@ -1372,7 +1372,8 @@ tree_mod_log_rewind(struct btrfs_fs_info *fs_info, struct btrfs_path *path,
 	btrfs_tree_read_unlock_blocking(eb);
 	free_extent_buffer(eb);
 
-	extent_buffer_get(eb_rewin);
+	btrfs_set_buffer_lockdep_class(btrfs_header_owner(eb_rewin),
+				       eb_rewin, btrfs_header_level(eb_rewin));
 	btrfs_tree_read_lock(eb_rewin);
 	__tree_mod_log_rewind(fs_info, eb_rewin, time_seq, tm);
 	WARN_ON(btrfs_header_nritems(eb_rewin) >
@@ -1441,8 +1442,6 @@ get_old_root(struct btrfs_root *root, u64 time_seq)
 
 	if (!eb)
 		return NULL;
-	extent_buffer_get(eb);
-	btrfs_tree_read_lock(eb);
 	if (old_root) {
 		btrfs_set_header_bytenr(eb, eb->start);
 		btrfs_set_header_backref_rev(eb, BTRFS_MIXED_BACKREF_REV);
@@ -1450,6 +1449,9 @@ get_old_root(struct btrfs_root *root, u64 time_seq)
 		btrfs_set_header_level(eb, old_root->level);
 		btrfs_set_header_generation(eb, old_generation);
 	}
+	btrfs_set_buffer_lockdep_class(btrfs_header_owner(eb), eb,
+				       btrfs_header_level(eb));
+	btrfs_tree_read_lock(eb);
 	if (tm)
 		__tree_mod_log_rewind(root->fs_info, eb, time_seq, tm);
 	else
diff --git linux-libre-4.4.235-gnu/fs/btrfs/extent_io.c linux-libre-4.4.236-gnu/fs/btrfs/extent_io.c
index 2f9f738ecf84..97a80238fdee 100644
--- linux-libre-4.4.235-gnu/fs/btrfs/extent_io.c
+++ linux-libre-4.4.236-gnu/fs/btrfs/extent_io.c
@@ -5431,9 +5431,9 @@ void read_extent_buffer(const struct extent_buffer *eb, void *dstv,
 	}
 }
 
-int read_extent_buffer_to_user(const struct extent_buffer *eb,
-			       void __user *dstv,
-			       unsigned long start, unsigned long len)
+int read_extent_buffer_to_user_nofault(const struct extent_buffer *eb,
+				       void __user *dstv,
+				       unsigned long start, unsigned long len)
 {
 	size_t cur;
 	size_t offset;
@@ -5454,7 +5454,7 @@ int read_extent_buffer_to_user(const struct extent_buffer *eb,
 
 		cur = min(len, (PAGE_CACHE_SIZE - offset));
 		kaddr = page_address(page);
-		if (copy_to_user(dst, kaddr + offset, cur)) {
+		if (probe_user_write(dst, kaddr + offset, cur)) {
 			ret = -EFAULT;
 			break;
 		}
diff --git linux-libre-4.4.235-gnu/fs/btrfs/extent_io.h linux-libre-4.4.236-gnu/fs/btrfs/extent_io.h
index 751435967724..9631be7fc9e2 100644
--- linux-libre-4.4.235-gnu/fs/btrfs/extent_io.h
+++ linux-libre-4.4.236-gnu/fs/btrfs/extent_io.h
@@ -313,9 +313,9 @@ int memcmp_extent_buffer(const struct extent_buffer *eb, const void *ptrv,
 void read_extent_buffer(const struct extent_buffer *eb, void *dst,
 			unsigned long start,
 			unsigned long len);
-int read_extent_buffer_to_user(const struct extent_buffer *eb,
-			       void __user *dst, unsigned long start,
-			       unsigned long len);
+int read_extent_buffer_to_user_nofault(const struct extent_buffer *eb,
+				       void __user *dst, unsigned long start,
+				       unsigned long len);
 void write_extent_buffer(struct extent_buffer *eb, const void *src,
 			 unsigned long start, unsigned long len);
 void copy_extent_buffer(struct extent_buffer *dst, struct extent_buffer *src,
diff --git linux-libre-4.4.235-gnu/fs/btrfs/ioctl.c linux-libre-4.4.236-gnu/fs/btrfs/ioctl.c
index 245a50f490f6..91a45ef69152 100644
--- linux-libre-4.4.235-gnu/fs/btrfs/ioctl.c
+++ linux-libre-4.4.236-gnu/fs/btrfs/ioctl.c
@@ -2017,9 +2017,14 @@ static noinline int copy_to_sk(struct btrfs_root *root,
 		sh.len = item_len;
 		sh.transid = found_transid;
 
-		/* copy search result header */
-		if (copy_to_user(ubuf + *sk_offset, &sh, sizeof(sh))) {
-			ret = -EFAULT;
+		/*
+		 * Copy search result header. If we fault then loop again so we
+		 * can fault in the pages and -EFAULT there if there's a
+		 * problem. Otherwise we'll fault and then copy the buffer in
+		 * properly this next time through
+		 */
+		if (probe_user_write(ubuf + *sk_offset, &sh, sizeof(sh))) {
+			ret = 0;
 			goto out;
 		}
 
@@ -2027,10 +2032,14 @@ static noinline int copy_to_sk(struct btrfs_root *root,
 
 		if (item_len) {
 			char __user *up = ubuf + *sk_offset;
-			/* copy the item */
-			if (read_extent_buffer_to_user(leaf, up,
-						       item_off, item_len)) {
-				ret = -EFAULT;
+			/*
+			 * Copy the item, same behavior as above, but reset the
+			 * * sk_offset so we copy the full thing again.
+			 */
+			if (read_extent_buffer_to_user_nofault(leaf, up,
+						item_off, item_len)) {
+				ret = 0;
+				*sk_offset -= sizeof(sh);
 				goto out;
 			}
 
@@ -2120,6 +2129,10 @@ static noinline int search_ioctl(struct inode *inode,
 	key.offset = sk->min_offset;
 
 	while (1) {
+		ret = fault_in_pages_writeable(ubuf, *buf_size - sk_offset);
+		if (ret)
+			break;
+
 		ret = btrfs_search_forward(root, &key, path, sk->min_transid);
 		if (ret != 0) {
 			if (ret > 0)
diff --git linux-libre-4.4.235-gnu/fs/btrfs/volumes.c linux-libre-4.4.236-gnu/fs/btrfs/volumes.c
index dcae0cf4924b..2d10b818399b 100644
--- linux-libre-4.4.235-gnu/fs/btrfs/volumes.c
+++ linux-libre-4.4.236-gnu/fs/btrfs/volumes.c
@@ -4065,6 +4065,7 @@ static int btrfs_uuid_scan_kthread(void *data)
 			goto skip;
 		}
 update_tree:
+		btrfs_release_path(path);
 		if (!btrfs_is_empty_uuid(root_item.uuid)) {
 			ret = btrfs_uuid_tree_add(trans, fs_info->uuid_root,
 						  root_item.uuid,
@@ -4090,6 +4091,7 @@ update_tree:
 		}
 
 skip:
+		btrfs_release_path(path);
 		if (trans) {
 			ret = btrfs_end_transaction(trans, fs_info->uuid_root);
 			trans = NULL;
@@ -4097,7 +4099,6 @@ skip:
 				break;
 		}
 
-		btrfs_release_path(path);
 		if (key.offset < (u64)-1) {
 			key.offset++;
 		} else if (key.type < BTRFS_ROOT_ITEM_KEY) {
diff --git linux-libre-4.4.235-gnu/fs/ceph/file.c linux-libre-4.4.236-gnu/fs/ceph/file.c
index c8222bfe1e56..3e6ebe40f06f 100644
--- linux-libre-4.4.235-gnu/fs/ceph/file.c
+++ linux-libre-4.4.236-gnu/fs/ceph/file.c
@@ -1433,6 +1433,7 @@ const struct file_operations ceph_file_fops = {
 	.mmap = ceph_mmap,
 	.fsync = ceph_fsync,
 	.lock = ceph_lock,
+	.setlease = simple_nosetlease,
 	.flock = ceph_flock,
 	.splice_read = generic_file_splice_read,
 	.splice_write = iter_file_splice_write,
diff --git linux-libre-4.4.235-gnu/fs/eventpoll.c linux-libre-4.4.236-gnu/fs/eventpoll.c
index b8959d0d4c72..e5324642023d 100644
--- linux-libre-4.4.235-gnu/fs/eventpoll.c
+++ linux-libre-4.4.236-gnu/fs/eventpoll.c
@@ -1720,9 +1720,9 @@ static int ep_loop_check_proc(void *priv, void *cookie, int call_nests)
 			 * during ep_insert().
 			 */
 			if (list_empty(&epi->ffd.file->f_tfile_llink)) {
-				get_file(epi->ffd.file);
-				list_add(&epi->ffd.file->f_tfile_llink,
-					 &tfile_check_list);
+				if (get_file_rcu(epi->ffd.file))
+					list_add(&epi->ffd.file->f_tfile_llink,
+						 &tfile_check_list);
 			}
 		}
 	}
diff --git linux-libre-4.4.235-gnu/include/linux/hid.h linux-libre-4.4.236-gnu/include/linux/hid.h
index 2149f650982e..d93ba6014e3c 100644
--- linux-libre-4.4.235-gnu/include/linux/hid.h
+++ linux-libre-4.4.236-gnu/include/linux/hid.h
@@ -866,34 +866,49 @@ static inline void hid_device_io_stop(struct hid_device *hid) {
  * @max: maximal valid usage->code to consider later (out parameter)
  * @type: input event type (EV_KEY, EV_REL, ...)
  * @c: code which corresponds to this usage and type
+ *
+ * The value pointed to by @bit will be set to NULL if either @type is
+ * an unhandled event type, or if @c is out of range for @type. This
+ * can be used as an error condition.
  */
 static inline void hid_map_usage(struct hid_input *hidinput,
 		struct hid_usage *usage, unsigned long **bit, int *max,
-		__u8 type, __u16 c)
+		__u8 type, unsigned int c)
 {
 	struct input_dev *input = hidinput->input;
-
-	usage->type = type;
-	usage->code = c;
+	unsigned long *bmap = NULL;
+	unsigned int limit = 0;
 
 	switch (type) {
 	case EV_ABS:
-		*bit = input->absbit;
-		*max = ABS_MAX;
+		bmap = input->absbit;
+		limit = ABS_MAX;
 		break;
 	case EV_REL:
-		*bit = input->relbit;
-		*max = REL_MAX;
+		bmap = input->relbit;
+		limit = REL_MAX;
 		break;
 	case EV_KEY:
-		*bit = input->keybit;
-		*max = KEY_MAX;
+		bmap = input->keybit;
+		limit = KEY_MAX;
 		break;
 	case EV_LED:
-		*bit = input->ledbit;
-		*max = LED_MAX;
+		bmap = input->ledbit;
+		limit = LED_MAX;
 		break;
 	}
+
+	if (unlikely(c > limit || !bmap)) {
+		pr_warn_ratelimited("%s: Invalid code %d type %d\n",
+				    input->name, c, type);
+		*bit = NULL;
+		return;
+	}
+
+	usage->type = type;
+	usage->code = c;
+	*max = limit;
+	*bit = bmap;
 }
 
 /**
@@ -907,7 +922,8 @@ static inline void hid_map_usage_clear(struct hid_input *hidinput,
 		__u8 type, __u16 c)
 {
 	hid_map_usage(hidinput, usage, bit, max, type, c);
-	clear_bit(c, *bit);
+	if (*bit)
+		clear_bit(usage->code, *bit);
 }
 
 /**
diff --git linux-libre-4.4.235-gnu/include/linux/log2.h linux-libre-4.4.236-gnu/include/linux/log2.h
index c373295f359f..cca606609e1b 100644
--- linux-libre-4.4.235-gnu/include/linux/log2.h
+++ linux-libre-4.4.236-gnu/include/linux/log2.h
@@ -159,7 +159,7 @@ unsigned long __rounddown_pow_of_two(unsigned long n)
 #define roundup_pow_of_two(n)			\
 (						\
 	__builtin_constant_p(n) ? (		\
-		(n == 1) ? 1 :			\
+		((n) == 1) ? 1 :		\
 		(1UL << (ilog2((n) - 1) + 1))	\
 				   ) :		\
 	__roundup_pow_of_two(n)			\
diff --git linux-libre-4.4.235-gnu/include/linux/uaccess.h linux-libre-4.4.236-gnu/include/linux/uaccess.h
index 15c7b5420d8a..c82dcea216b1 100644
--- linux-libre-4.4.235-gnu/include/linux/uaccess.h
+++ linux-libre-4.4.236-gnu/include/linux/uaccess.h
@@ -90,6 +90,17 @@ static inline unsigned long __copy_from_user_nocache(void *to,
 extern long probe_kernel_read(void *dst, const void *src, size_t size);
 extern long __probe_kernel_read(void *dst, const void *src, size_t size);
 
+/*
+ * probe_user_read(): safely attempt to read from a location in user space
+ * @dst: pointer to the buffer that shall take the data
+ * @src: address to read from
+ * @size: size of the data chunk
+ *
+ * Safely read from address @src to the buffer at @dst.  If a kernel fault
+ * happens, handle that and return -EFAULT.
+ */
+extern long probe_user_read(void *dst, const void __user *src, size_t size);
+
 /*
  * probe_kernel_write(): safely attempt to write to a location
  * @dst: address to write to
@@ -102,7 +113,22 @@ extern long __probe_kernel_read(void *dst, const void *src, size_t size);
 extern long notrace probe_kernel_write(void *dst, const void *src, size_t size);
 extern long notrace __probe_kernel_write(void *dst, const void *src, size_t size);
 
+/*
+ * probe_user_write(): safely attempt to write to a location in user space
+ * @dst: address to write to
+ * @src: pointer to the data that shall be written
+ * @size: size of the data chunk
+ *
+ * Safely write to address @dst from the buffer at @src.  If a kernel fault
+ * happens, handle that and return -EFAULT.
+ */
+extern long notrace probe_user_write(void __user *dst, const void *src, size_t size);
+extern long notrace __probe_user_write(void __user *dst, const void *src, size_t size);
+
 extern long strncpy_from_unsafe(char *dst, const void *unsafe_addr, long count);
+extern long strncpy_from_unsafe_user(char *dst, const void __user *unsafe_addr,
+				     long count);
+extern long strnlen_unsafe_user(const void __user *unsafe_addr, long count);
 
 /**
  * probe_kernel_address(): safely attempt to read from a location
diff --git linux-libre-4.4.235-gnu/include/net/inet_connection_sock.h linux-libre-4.4.236-gnu/include/net/inet_connection_sock.h
index 72599bbc8255..a77a37c6349d 100644
--- linux-libre-4.4.235-gnu/include/net/inet_connection_sock.h
+++ linux-libre-4.4.236-gnu/include/net/inet_connection_sock.h
@@ -319,5 +319,9 @@ int inet_csk_compat_getsockopt(struct sock *sk, int level, int optname,
 int inet_csk_compat_setsockopt(struct sock *sk, int level, int optname,
 			       char __user *optval, unsigned int optlen);
 
+/* update the fast reuse flag when adding a socket */
+void inet_csk_update_fastreuse(struct inet_bind_bucket *tb,
+			       struct sock *sk);
+
 struct dst_entry *inet_csk_update_pmtu(struct sock *sk, u32 mtu);
 #endif /* _INET_CONNECTION_SOCK_H */
diff --git linux-libre-4.4.235-gnu/include/net/netfilter/nf_tables.h linux-libre-4.4.236-gnu/include/net/netfilter/nf_tables.h
index b96df7499600..bee9031a4006 100644
--- linux-libre-4.4.235-gnu/include/net/netfilter/nf_tables.h
+++ linux-libre-4.4.236-gnu/include/net/netfilter/nf_tables.h
@@ -74,6 +74,8 @@ struct nft_regs {
 static inline void nft_data_copy(u32 *dst, const struct nft_data *src,
 				 unsigned int len)
 {
+	if (len % NFT_REG32_SIZE)
+		dst[len / NFT_REG32_SIZE] = 0;
 	memcpy(dst, src, len);
 }
 
diff --git linux-libre-4.4.235-gnu/include/uapi/linux/netfilter/nf_tables.h linux-libre-4.4.236-gnu/include/uapi/linux/netfilter/nf_tables.h
index d8c8a7c9d88a..b0a1c33d4a15 100644
--- linux-libre-4.4.235-gnu/include/uapi/linux/netfilter/nf_tables.h
+++ linux-libre-4.4.236-gnu/include/uapi/linux/netfilter/nf_tables.h
@@ -111,7 +111,7 @@ enum nf_tables_msg_types {
  * @NFTA_LIST_ELEM: list element (NLA_NESTED)
  */
 enum nft_list_attributes {
-	NFTA_LIST_UNPEC,
+	NFTA_LIST_UNSPEC,
 	NFTA_LIST_ELEM,
 	__NFTA_LIST_MAX
 };
diff --git linux-libre-4.4.235-gnu/mm/hugetlb.c linux-libre-4.4.236-gnu/mm/hugetlb.c
index baac9a09ec0a..44970b17f4fe 100644
--- linux-libre-4.4.235-gnu/mm/hugetlb.c
+++ linux-libre-4.4.236-gnu/mm/hugetlb.c
@@ -2812,6 +2812,22 @@ static unsigned int cpuset_mems_nr(unsigned int *array)
 }
 
 #ifdef CONFIG_SYSCTL
+static int proc_hugetlb_doulongvec_minmax(struct ctl_table *table, int write,
+					  void *buffer, size_t *length,
+					  loff_t *ppos, unsigned long *out)
+{
+	struct ctl_table dup_table;
+
+	/*
+	 * In order to avoid races with __do_proc_doulongvec_minmax(), we
+	 * can duplicate the @table and alter the duplicate of it.
+	 */
+	dup_table = *table;
+	dup_table.data = out;
+
+	return proc_doulongvec_minmax(&dup_table, write, buffer, length, ppos);
+}
+
 static int hugetlb_sysctl_handler_common(bool obey_mempolicy,
 			 struct ctl_table *table, int write,
 			 void __user *buffer, size_t *length, loff_t *ppos)
@@ -2823,9 +2839,8 @@ static int hugetlb_sysctl_handler_common(bool obey_mempolicy,
 	if (!hugepages_supported())
 		return -ENOTSUPP;
 
-	table->data = &tmp;
-	table->maxlen = sizeof(unsigned long);
-	ret = proc_doulongvec_minmax(table, write, buffer, length, ppos);
+	ret = proc_hugetlb_doulongvec_minmax(table, write, buffer, length, ppos,
+					     &tmp);
 	if (ret)
 		goto out;
 
@@ -2869,9 +2884,8 @@ int hugetlb_overcommit_handler(struct ctl_table *table, int write,
 	if (write && hstate_is_gigantic(h))
 		return -EINVAL;
 
-	table->data = &tmp;
-	table->maxlen = sizeof(unsigned long);
-	ret = proc_doulongvec_minmax(table, write, buffer, length, ppos);
+	ret = proc_hugetlb_doulongvec_minmax(table, write, buffer, length, ppos,
+					     &tmp);
 	if (ret)
 		goto out;
 
diff --git linux-libre-4.4.235-gnu/mm/maccess.c linux-libre-4.4.236-gnu/mm/maccess.c
index d159b1c96e48..18717e893a75 100644
--- linux-libre-4.4.235-gnu/mm/maccess.c
+++ linux-libre-4.4.236-gnu/mm/maccess.c
@@ -5,8 +5,32 @@
 #include <linux/mm.h>
 #include <linux/uaccess.h>
 
+static __always_inline long
+probe_read_common(void *dst, const void __user *src, size_t size)
+{
+	long ret;
+
+	pagefault_disable();
+	ret = __copy_from_user_inatomic(dst, src, size);
+	pagefault_enable();
+
+	return ret ? -EFAULT : 0;
+}
+
+static __always_inline long
+probe_write_common(void __user *dst, const void *src, size_t size)
+{
+	long ret;
+
+	pagefault_disable();
+	ret = __copy_to_user_inatomic(dst, src, size);
+	pagefault_enable();
+
+	return ret ? -EFAULT : 0;
+}
+
 /**
- * probe_kernel_read(): safely attempt to read from a location
+ * probe_kernel_read(): safely attempt to read from a kernel-space location
  * @dst: pointer to the buffer that shall take the data
  * @src: address to read from
  * @size: size of the data chunk
@@ -29,16 +53,40 @@ long __probe_kernel_read(void *dst, const void *src, size_t size)
 	mm_segment_t old_fs = get_fs();
 
 	set_fs(KERNEL_DS);
-	pagefault_disable();
-	ret = __copy_from_user_inatomic(dst,
-			(__force const void __user *)src, size);
-	pagefault_enable();
+	ret = probe_read_common(dst, (__force const void __user *)src, size);
 	set_fs(old_fs);
 
-	return ret ? -EFAULT : 0;
+	return ret;
 }
 EXPORT_SYMBOL_GPL(probe_kernel_read);
 
+/**
+ * probe_user_read(): safely attempt to read from a user-space location
+ * @dst: pointer to the buffer that shall take the data
+ * @src: address to read from. This must be a user address.
+ * @size: size of the data chunk
+ *
+ * Safely read from user address @src to the buffer at @dst. If a kernel fault
+ * happens, handle that and return -EFAULT.
+ */
+
+long __weak probe_user_read(void *dst, const void __user *src, size_t size)
+    __attribute__((alias("__probe_user_read")));
+
+long __probe_user_read(void *dst, const void __user *src, size_t size)
+{
+	long ret = -EFAULT;
+	mm_segment_t old_fs = get_fs();
+
+	set_fs(USER_DS);
+	if (access_ok(VERIFY_READ, src, size))
+		ret = probe_read_common(dst, src, size);
+	set_fs(old_fs);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(probe_user_read);
+
 /**
  * probe_kernel_write(): safely attempt to write to a location
  * @dst: address to write to
@@ -48,6 +96,7 @@ EXPORT_SYMBOL_GPL(probe_kernel_read);
  * Safely write to address @dst from the buffer at @src.  If a kernel fault
  * happens, handle that and return -EFAULT.
  */
+
 long __weak probe_kernel_write(void *dst, const void *src, size_t size)
     __attribute__((alias("__probe_kernel_write")));
 
@@ -57,15 +106,40 @@ long __probe_kernel_write(void *dst, const void *src, size_t size)
 	mm_segment_t old_fs = get_fs();
 
 	set_fs(KERNEL_DS);
-	pagefault_disable();
-	ret = __copy_to_user_inatomic((__force void __user *)dst, src, size);
-	pagefault_enable();
+	ret = probe_write_common((__force void __user *)dst, src, size);
 	set_fs(old_fs);
 
-	return ret ? -EFAULT : 0;
+	return ret;
 }
 EXPORT_SYMBOL_GPL(probe_kernel_write);
 
+/**
+ * probe_user_write(): safely attempt to write to a user-space location
+ * @dst: address to write to
+ * @src: pointer to the data that shall be written
+ * @size: size of the data chunk
+ *
+ * Safely write to address @dst from the buffer at @src.  If a kernel fault
+ * happens, handle that and return -EFAULT.
+ */
+
+long __weak probe_user_write(void __user *dst, const void *src, size_t size)
+    __attribute__((alias("__probe_user_write")));
+
+long __probe_user_write(void __user *dst, const void *src, size_t size)
+{
+	long ret = -EFAULT;
+	mm_segment_t old_fs = get_fs();
+
+	set_fs(USER_DS);
+	if (access_ok(VERIFY_WRITE, dst, size))
+		ret = probe_write_common(dst, src, size);
+	set_fs(old_fs);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(probe_user_write);
+
 /**
  * strncpy_from_unsafe: - Copy a NUL terminated string from unsafe address.
  * @dst:   Destination address, in kernel space.  This buffer must be at
@@ -106,3 +180,76 @@ long strncpy_from_unsafe(char *dst, const void *unsafe_addr, long count)
 
 	return ret ? -EFAULT : src - unsafe_addr;
 }
+
+/**
+ * strncpy_from_unsafe_user: - Copy a NUL terminated string from unsafe user
+ *				address.
+ * @dst:   Destination address, in kernel space.  This buffer must be at
+ *         least @count bytes long.
+ * @unsafe_addr: Unsafe user address.
+ * @count: Maximum number of bytes to copy, including the trailing NUL.
+ *
+ * Copies a NUL-terminated string from unsafe user address to kernel buffer.
+ *
+ * On success, returns the length of the string INCLUDING the trailing NUL.
+ *
+ * If access fails, returns -EFAULT (some data may have been copied
+ * and the trailing NUL added).
+ *
+ * If @count is smaller than the length of the string, copies @count-1 bytes,
+ * sets the last byte of @dst buffer to NUL and returns @count.
+ */
+long strncpy_from_unsafe_user(char *dst, const void __user *unsafe_addr,
+			      long count)
+{
+	mm_segment_t old_fs = get_fs();
+	long ret;
+
+	if (unlikely(count <= 0))
+		return 0;
+
+	set_fs(USER_DS);
+	pagefault_disable();
+	ret = strncpy_from_user(dst, unsafe_addr, count);
+	pagefault_enable();
+	set_fs(old_fs);
+
+	if (ret >= count) {
+		ret = count;
+		dst[ret - 1] = '\0';
+	} else if (ret > 0) {
+		ret++;
+	}
+
+	return ret;
+}
+
+/**
+ * strnlen_unsafe_user: - Get the size of a user string INCLUDING final NUL.
+ * @unsafe_addr: The string to measure.
+ * @count: Maximum count (including NUL)
+ *
+ * Get the size of a NUL-terminated string in user space without pagefault.
+ *
+ * Returns the size of the string INCLUDING the terminating NUL.
+ *
+ * If the string is too long, returns a number larger than @count. User
+ * has to check the return value against "> count".
+ * On exception (or invalid count), returns 0.
+ *
+ * Unlike strnlen_user, this can be used from IRQ handler etc. because
+ * it disables pagefaults.
+ */
+long strnlen_unsafe_user(const void __user *unsafe_addr, long count)
+{
+	mm_segment_t old_fs = get_fs();
+	int ret;
+
+	set_fs(USER_DS);
+	pagefault_disable();
+	ret = strnlen_user(unsafe_addr, count);
+	pagefault_enable();
+	set_fs(old_fs);
+
+	return ret;
+}
diff --git linux-libre-4.4.235-gnu/mm/page_alloc.c linux-libre-4.4.236-gnu/mm/page_alloc.c
index 14bab5fa1b65..3570aaf2a620 100644
--- linux-libre-4.4.235-gnu/mm/page_alloc.c
+++ linux-libre-4.4.236-gnu/mm/page_alloc.c
@@ -835,7 +835,6 @@ static void free_pcppages_bulk(struct zone *zone, int count,
 {
 	int migratetype = 0;
 	int batch_free = 0;
-	int to_free = count;
 	unsigned long nr_scanned;
 
 	spin_lock(&zone->lock);
@@ -848,7 +847,7 @@ static void free_pcppages_bulk(struct zone *zone, int count,
 	 * below while (list_empty(list)) loop.
 	 */
 	count = min(pcp->count, count);
-	while (to_free) {
+	while (count) {
 		struct page *page;
 		struct list_head *list;
 
@@ -868,7 +867,7 @@ static void free_pcppages_bulk(struct zone *zone, int count,
 
 		/* This is the only non-empty list. Free them all. */
 		if (batch_free == MIGRATE_PCPTYPES)
-			batch_free = to_free;
+			batch_free = count;
 
 		do {
 			int mt;	/* migratetype of the to-be-freed page */
@@ -886,7 +885,7 @@ static void free_pcppages_bulk(struct zone *zone, int count,
 
 			__free_one_page(page, page_to_pfn(page), zone, 0, mt);
 			trace_mm_page_pcpu_drain(page, 0, mt);
-		} while (--to_free && --batch_free && !list_empty(list));
+		} while (--count && --batch_free && !list_empty(list));
 	}
 	spin_unlock(&zone->lock);
 }
diff --git linux-libre-4.4.235-gnu/net/batman-adv/bridge_loop_avoidance.c linux-libre-4.4.236-gnu/net/batman-adv/bridge_loop_avoidance.c
index cea7fdeac5aa..9aa5daa55127 100644
--- linux-libre-4.4.235-gnu/net/batman-adv/bridge_loop_avoidance.c
+++ linux-libre-4.4.236-gnu/net/batman-adv/bridge_loop_avoidance.c
@@ -380,7 +380,10 @@ static void batadv_bla_send_claim(struct batadv_priv *bat_priv, u8 *mac,
 			   skb->len + ETH_HLEN);
 	soft_iface->last_rx = jiffies;
 
-	netif_rx(skb);
+	if (in_interrupt())
+		netif_rx(skb);
+	else
+		netif_rx_ni(skb);
 out:
 	if (primary_if)
 		batadv_hardif_free_ref(primary_if);
diff --git linux-libre-4.4.235-gnu/net/batman-adv/gateway_client.c linux-libre-4.4.236-gnu/net/batman-adv/gateway_client.c
index a88b529b7ca0..5fdb88f72b68 100644
--- linux-libre-4.4.235-gnu/net/batman-adv/gateway_client.c
+++ linux-libre-4.4.236-gnu/net/batman-adv/gateway_client.c
@@ -757,8 +757,10 @@ batadv_gw_dhcp_recipient_get(struct sk_buff *skb, unsigned int *header_len,
 
 	chaddr_offset = *header_len + BATADV_DHCP_CHADDR_OFFSET;
 	/* store the client address if the message is going to a client */
-	if (ret == BATADV_DHCP_TO_CLIENT &&
-	    pskb_may_pull(skb, chaddr_offset + ETH_ALEN)) {
+	if (ret == BATADV_DHCP_TO_CLIENT) {
+		if (!pskb_may_pull(skb, chaddr_offset + ETH_ALEN))
+			return BATADV_DHCP_NO;
+
 		/* check if the DHCP packet carries an Ethernet DHCP */
 		p = skb->data + *header_len + BATADV_DHCP_HTYPE_OFFSET;
 		if (*p != BATADV_DHCP_HTYPE_ETHERNET)
diff --git linux-libre-4.4.235-gnu/net/core/dev.c linux-libre-4.4.236-gnu/net/core/dev.c
index 09115c68f29d..59157e9686fb 100644
--- linux-libre-4.4.235-gnu/net/core/dev.c
+++ linux-libre-4.4.236-gnu/net/core/dev.c
@@ -4849,13 +4849,14 @@ void netif_napi_add(struct net_device *dev, struct napi_struct *napi,
 		pr_err_once("netif_napi_add() called with weight %d on device %s\n",
 			    weight, dev->name);
 	napi->weight = weight;
-	list_add(&napi->dev_list, &dev->napi_list);
 	napi->dev = dev;
 #ifdef CONFIG_NETPOLL
 	spin_lock_init(&napi->poll_lock);
 	napi->poll_owner = -1;
 #endif
 	set_bit(NAPI_STATE_SCHED, &napi->state);
+	set_bit(NAPI_STATE_NPSVC, &napi->state);
+	list_add_rcu(&napi->dev_list, &dev->napi_list);
 }
 EXPORT_SYMBOL(netif_napi_add);
 
diff --git linux-libre-4.4.235-gnu/net/core/netpoll.c linux-libre-4.4.236-gnu/net/core/netpoll.c
index 0d7c2cc1ff09..f2610f8f171c 100644
--- linux-libre-4.4.235-gnu/net/core/netpoll.c
+++ linux-libre-4.4.236-gnu/net/core/netpoll.c
@@ -178,7 +178,7 @@ static void poll_napi(struct net_device *dev)
 {
 	struct napi_struct *napi;
 
-	list_for_each_entry(napi, &dev->napi_list, dev_list) {
+	list_for_each_entry_rcu(napi, &dev->napi_list, dev_list) {
 		if (napi->poll_owner != smp_processor_id() &&
 		    spin_trylock(&napi->poll_lock)) {
 			poll_one_napi(napi);
diff --git linux-libre-4.4.235-gnu/net/ipv4/inet_connection_sock.c linux-libre-4.4.236-gnu/net/ipv4/inet_connection_sock.c
index 6c9158805b57..9678dd8d70c3 100644
--- linux-libre-4.4.235-gnu/net/ipv4/inet_connection_sock.c
+++ linux-libre-4.4.236-gnu/net/ipv4/inet_connection_sock.c
@@ -87,6 +87,31 @@ int inet_csk_bind_conflict(const struct sock *sk,
 }
 EXPORT_SYMBOL_GPL(inet_csk_bind_conflict);
 
+void inet_csk_update_fastreuse(struct inet_bind_bucket *tb,
+			       struct sock *sk)
+{
+	kuid_t uid = sock_i_uid(sk);
+
+	if (hlist_empty(&tb->owners)) {
+		if (sk->sk_reuse && sk->sk_state != TCP_LISTEN)
+			tb->fastreuse = 1;
+		else
+			tb->fastreuse = 0;
+		if (sk->sk_reuseport) {
+			tb->fastreuseport = 1;
+			tb->fastuid = uid;
+		} else
+			tb->fastreuseport = 0;
+	} else {
+		if (tb->fastreuse &&
+		    (!sk->sk_reuse || sk->sk_state == TCP_LISTEN))
+			tb->fastreuse = 0;
+		if (tb->fastreuseport &&
+		    (!sk->sk_reuseport || !uid_eq(tb->fastuid, uid)))
+			tb->fastreuseport = 0;
+	}
+}
+
 /* Obtain a reference to a local port for the given sock,
  * if snum is zero it means select any available local port.
  */
@@ -216,24 +241,9 @@ tb_not_found:
 	if (!tb && (tb = inet_bind_bucket_create(hashinfo->bind_bucket_cachep,
 					net, head, snum)) == NULL)
 		goto fail_unlock;
-	if (hlist_empty(&tb->owners)) {
-		if (sk->sk_reuse && sk->sk_state != TCP_LISTEN)
-			tb->fastreuse = 1;
-		else
-			tb->fastreuse = 0;
-		if (sk->sk_reuseport) {
-			tb->fastreuseport = 1;
-			tb->fastuid = uid;
-		} else
-			tb->fastreuseport = 0;
-	} else {
-		if (tb->fastreuse &&
-		    (!sk->sk_reuse || sk->sk_state == TCP_LISTEN))
-			tb->fastreuse = 0;
-		if (tb->fastreuseport &&
-		    (!sk->sk_reuseport || !uid_eq(tb->fastuid, uid)))
-			tb->fastreuseport = 0;
-	}
+
+	inet_csk_update_fastreuse(tb, sk);
+
 success:
 	if (!inet_csk(sk)->icsk_bind_hash)
 		inet_bind_hash(sk, tb, snum);
diff --git linux-libre-4.4.235-gnu/net/ipv4/inet_hashtables.c linux-libre-4.4.236-gnu/net/ipv4/inet_hashtables.c
index ccc5980797fc..738cd5c822b1 100644
--- linux-libre-4.4.235-gnu/net/ipv4/inet_hashtables.c
+++ linux-libre-4.4.236-gnu/net/ipv4/inet_hashtables.c
@@ -160,6 +160,7 @@ int __inet_inherit_port(const struct sock *sk, struct sock *child)
 				return -ENOMEM;
 			}
 		}
+		inet_csk_update_fastreuse(tb, child);
 	}
 	inet_bind_hash(child, tb, port);
 	spin_unlock(&head->lock);
diff --git linux-libre-4.4.235-gnu/net/netfilter/nft_payload.c linux-libre-4.4.236-gnu/net/netfilter/nft_payload.c
index 09b4b07eb676..ab3e7b14de09 100644
--- linux-libre-4.4.235-gnu/net/netfilter/nft_payload.c
+++ linux-libre-4.4.236-gnu/net/netfilter/nft_payload.c
@@ -74,7 +74,9 @@ static void nft_payload_eval(const struct nft_expr *expr,
 	u32 *dest = &regs->data[priv->dreg];
 	int offset;
 
-	dest[priv->len / NFT_REG32_SIZE] = 0;
+	if (priv->len % NFT_REG32_SIZE)
+		dest[priv->len / NFT_REG32_SIZE] = 0;
+
 	switch (priv->base) {
 	case NFT_PAYLOAD_LL_HEADER:
 		if (!skb_mac_header_was_set(skb))
diff --git linux-libre-4.4.235-gnu/net/sctp/socket.c linux-libre-4.4.236-gnu/net/sctp/socket.c
index 5803d0807e9a..62ba9a49c126 100644
--- linux-libre-4.4.235-gnu/net/sctp/socket.c
+++ linux-libre-4.4.236-gnu/net/sctp/socket.c
@@ -6206,8 +6206,6 @@ static long sctp_get_port_local(struct sock *sk, union sctp_addr *addr)
 
 	pr_debug("%s: begins, snum:%d\n", __func__, snum);
 
-	local_bh_disable();
-
 	if (snum == 0) {
 		/* Search for an available port. */
 		int low, high, remaining, index;
@@ -6226,20 +6224,21 @@ static long sctp_get_port_local(struct sock *sk, union sctp_addr *addr)
 				continue;
 			index = sctp_phashfn(sock_net(sk), rover);
 			head = &sctp_port_hashtable[index];
-			spin_lock(&head->lock);
+			spin_lock_bh(&head->lock);
 			sctp_for_each_hentry(pp, &head->chain)
 				if ((pp->port == rover) &&
 				    net_eq(sock_net(sk), pp->net))
 					goto next;
 			break;
 		next:
-			spin_unlock(&head->lock);
+			spin_unlock_bh(&head->lock);
+			cond_resched();
 		} while (--remaining > 0);
 
 		/* Exhausted local port range during search? */
 		ret = 1;
 		if (remaining <= 0)
-			goto fail;
+			return ret;
 
 		/* OK, here is the one we will use.  HEAD (the port
 		 * hash table list entry) is non-NULL and we hold it's
@@ -6254,7 +6253,7 @@ static long sctp_get_port_local(struct sock *sk, union sctp_addr *addr)
 		 * port iterator, pp being NULL.
 		 */
 		head = &sctp_port_hashtable[sctp_phashfn(sock_net(sk), snum)];
-		spin_lock(&head->lock);
+		spin_lock_bh(&head->lock);
 		sctp_for_each_hentry(pp, &head->chain) {
 			if ((pp->port == snum) && net_eq(pp->net, sock_net(sk)))
 				goto pp_found;
@@ -6338,10 +6337,7 @@ success:
 	ret = 0;
 
 fail_unlock:
-	spin_unlock(&head->lock);
-
-fail:
-	local_bh_enable();
+	spin_unlock_bh(&head->lock);
 	return ret;
 }
 
diff --git linux-libre-4.4.235-gnu/net/wireless/reg.c linux-libre-4.4.236-gnu/net/wireless/reg.c
index 437ec52d5e71..474923175b10 100644
--- linux-libre-4.4.235-gnu/net/wireless/reg.c
+++ linux-libre-4.4.236-gnu/net/wireless/reg.c
@@ -2383,6 +2383,9 @@ int regulatory_hint_user(const char *alpha2,
 	if (WARN_ON(!alpha2))
 		return -EINVAL;
 
+	if (!is_world_regdom(alpha2) && !is_an_alpha2(alpha2))
+		return -EINVAL;
+
 	request = kzalloc(sizeof(struct regulatory_request), GFP_KERNEL);
 	if (!request)
 		return -ENOMEM;
diff --git linux-libre-4.4.235-gnu/scripts/checkpatch.pl linux-libre-4.4.236-gnu/scripts/checkpatch.pl
index 6ac6550d751c..8835a4775d20 100755
--- linux-libre-4.4.235-gnu/scripts/checkpatch.pl
+++ linux-libre-4.4.236-gnu/scripts/checkpatch.pl
@@ -2195,8 +2195,8 @@ sub process {
 
 # Check if the commit log has what seems like a diff which can confuse patch
 		if ($in_commit_log && !$commit_log_has_diff &&
-		    (($line =~ m@^\s+diff\b.*a/[\w/]+@ &&
-		      $line =~ m@^\s+diff\b.*a/([\w/]+)\s+b/$1\b@) ||
+		    (($line =~ m@^\s+diff\b.*a/([\w/]+)@ &&
+		      $line =~ m@^\s+diff\b.*a/[\w/]+\s+b/$1\b@) ||
 		     $line =~ m@^\s*(?:\-\-\-\s+a/|\+\+\+\s+b/)@ ||
 		     $line =~ m/^\s*\@\@ \-\d+,\d+ \+\d+,\d+ \@\@/)) {
 			ERROR("DIFF_IN_COMMIT_MSG",
diff --git linux-libre-4.4.235-gnu/sound/core/oss/mulaw.c linux-libre-4.4.236-gnu/sound/core/oss/mulaw.c
index 3788906421a7..fe27034f2846 100644
--- linux-libre-4.4.235-gnu/sound/core/oss/mulaw.c
+++ linux-libre-4.4.236-gnu/sound/core/oss/mulaw.c
@@ -329,8 +329,8 @@ int snd_pcm_plugin_build_mulaw(struct snd_pcm_substream *plug,
 		snd_BUG();
 		return -EINVAL;
 	}
-	if (snd_BUG_ON(!snd_pcm_format_linear(format->format)))
-		return -ENXIO;
+	if (!snd_pcm_format_linear(format->format))
+		return -EINVAL;
 
 	err = snd_pcm_plugin_build(plug, "Mu-Law<->linear conversion",
 				   src_format, dst_format,
diff --git linux-libre-4.4.235-gnu/sound/firewire/digi00x/digi00x.c linux-libre-4.4.236-gnu/sound/firewire/digi00x/digi00x.c
index 1f33b7a1fca4..659e8224a4de 100644
--- linux-libre-4.4.235-gnu/sound/firewire/digi00x/digi00x.c
+++ linux-libre-4.4.236-gnu/sound/firewire/digi00x/digi00x.c
@@ -13,7 +13,9 @@ MODULE_AUTHOR("Takashi Sakamoto <o-takashi@sakamocchi.jp>");
 MODULE_LICENSE("GPL v2");
 
 #define VENDOR_DIGIDESIGN	0x00a07e
-#define MODEL_DIGI00X		0x000002
+#define MODEL_CONSOLE		0x000001
+#define MODEL_RACK		0x000002
+#define SPEC_VERSION		0x000001
 
 static int name_card(struct snd_dg00x *dg00x)
 {
@@ -75,6 +77,8 @@ static int snd_dg00x_probe(struct fw_unit *unit,
 	spin_lock_init(&dg00x->lock);
 	init_waitqueue_head(&dg00x->hwdep_wait);
 
+	dg00x->is_console = entry->model_id == MODEL_CONSOLE;
+
 	err = name_card(dg00x);
 	if (err < 0)
 		goto error;
@@ -136,9 +140,19 @@ static const struct ieee1394_device_id snd_dg00x_id_table[] = {
 	/* Both of 002/003 use the same ID. */
 	{
 		.match_flags = IEEE1394_MATCH_VENDOR_ID |
+			       IEEE1394_MATCH_VERSION |
+			       IEEE1394_MATCH_MODEL_ID,
+		.vendor_id = VENDOR_DIGIDESIGN,
+		.version = SPEC_VERSION,
+		.model_id = MODEL_CONSOLE,
+	},
+	{
+		.match_flags = IEEE1394_MATCH_VENDOR_ID |
+			       IEEE1394_MATCH_VERSION |
 			       IEEE1394_MATCH_MODEL_ID,
 		.vendor_id = VENDOR_DIGIDESIGN,
-		.model_id = MODEL_DIGI00X,
+		.version = SPEC_VERSION,
+		.model_id = MODEL_RACK,
 	},
 	{}
 };
diff --git linux-libre-4.4.235-gnu/sound/firewire/digi00x/digi00x.h linux-libre-4.4.236-gnu/sound/firewire/digi00x/digi00x.h
index 907e73993677..d641a0cf077a 100644
--- linux-libre-4.4.235-gnu/sound/firewire/digi00x/digi00x.h
+++ linux-libre-4.4.236-gnu/sound/firewire/digi00x/digi00x.h
@@ -57,6 +57,7 @@ struct snd_dg00x {
 	/* For asynchronous MIDI controls. */
 	struct snd_rawmidi_substream *in_control;
 	struct snd_fw_async_midi_port out_control;
+	bool is_console;
 };
 
 #define DG00X_ADDR_BASE		0xffffe0000000ull
diff --git linux-libre-4.4.235-gnu/sound/firewire/tascam/tascam.c linux-libre-4.4.236-gnu/sound/firewire/tascam/tascam.c
index ee0bc1839508..a4143f45c7f7 100644
--- linux-libre-4.4.235-gnu/sound/firewire/tascam/tascam.c
+++ linux-libre-4.4.236-gnu/sound/firewire/tascam/tascam.c
@@ -172,11 +172,39 @@ static void snd_tscm_remove(struct fw_unit *unit)
 }
 
 static const struct ieee1394_device_id snd_tscm_id_table[] = {
+	// Tascam, FW-1884.
 	{
 		.match_flags = IEEE1394_MATCH_VENDOR_ID |
-			       IEEE1394_MATCH_SPECIFIER_ID,
+			       IEEE1394_MATCH_SPECIFIER_ID |
+			       IEEE1394_MATCH_VERSION,
 		.vendor_id = 0x00022e,
 		.specifier_id = 0x00022e,
+		.version = 0x800000,
+	},
+	// Tascam, FE-8 (.version = 0x800001)
+	// This kernel module doesn't support FE-8 because the most of features
+	// can be implemented in userspace without any specific support of this
+	// module.
+	//
+	// .version = 0x800002 is unknown.
+	//
+	// Tascam, FW-1082.
+	{
+		.match_flags = IEEE1394_MATCH_VENDOR_ID |
+			       IEEE1394_MATCH_SPECIFIER_ID |
+			       IEEE1394_MATCH_VERSION,
+		.vendor_id = 0x00022e,
+		.specifier_id = 0x00022e,
+		.version = 0x800003,
+	},
+	// Tascam, FW-1804.
+	{
+		.match_flags = IEEE1394_MATCH_VENDOR_ID |
+			       IEEE1394_MATCH_SPECIFIER_ID |
+			       IEEE1394_MATCH_VERSION,
+		.vendor_id = 0x00022e,
+		.specifier_id = 0x00022e,
+		.version = 0x800004,
 	},
 	/* FE-08 requires reverse-engineering because it just has faders. */
 	{}
diff --git linux-libre-4.4.235-gnu/sound/pci/ca0106/ca0106_main.c linux-libre-4.4.236-gnu/sound/pci/ca0106/ca0106_main.c
index d3cd95633ee2..e7ee51b7aa6b 100644
--- linux-libre-4.4.235-gnu/sound/pci/ca0106/ca0106_main.c
+++ linux-libre-4.4.236-gnu/sound/pci/ca0106/ca0106_main.c
@@ -551,7 +551,8 @@ static int snd_ca0106_pcm_power_dac(struct snd_ca0106 *chip, int channel_id,
 		else
 			/* Power down */
 			chip->spi_dac_reg[reg] |= bit;
-		return snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]);
+		if (snd_ca0106_spi_write(chip, chip->spi_dac_reg[reg]) != 0)
+			return -ENXIO;
 	}
 	return 0;
 }
diff --git linux-libre-4.4.235-gnu/tools/perf/Documentation/perf-record.txt linux-libre-4.4.236-gnu/tools/perf/Documentation/perf-record.txt
index e630a7d2c348..e4eee57ad229 100644
--- linux-libre-4.4.235-gnu/tools/perf/Documentation/perf-record.txt
+++ linux-libre-4.4.236-gnu/tools/perf/Documentation/perf-record.txt
@@ -33,6 +33,10 @@ OPTIONS
         - a raw PMU event (eventsel+umask) in the form of rNNN where NNN is a
 	  hexadecimal event descriptor.
 
+        - a symbolic or raw PMU event followed by an optional colon
+	  and a list of event modifiers, e.g., cpu-cycles:p.  See the
+	  linkperf:perf-list[1] man page for details on event modifiers.
+
 	- a symbolically formed PMU event like 'pmu/param1=0x3,param2/' where
 	  'param1', 'param2', etc are defined as formats for the PMU in
 	  /sys/bus/event_sources/devices/<pmu>/format/*.
diff --git linux-libre-4.4.235-gnu/tools/perf/Documentation/perf-stat.txt linux-libre-4.4.236-gnu/tools/perf/Documentation/perf-stat.txt
index 90c3558c2c12..ee7fe04fc4b6 100644
--- linux-libre-4.4.235-gnu/tools/perf/Documentation/perf-stat.txt
+++ linux-libre-4.4.236-gnu/tools/perf/Documentation/perf-stat.txt
@@ -32,6 +32,10 @@ OPTIONS
 	- a raw PMU event (eventsel+umask) in the form of rNNN where NNN is a
 	  hexadecimal event descriptor.
 
+        - a symbolic or raw PMU event followed by an optional colon
+	  and a list of event modifiers, e.g., cpu-cycles:p.  See the
+	  linkperf:perf-list[1] man page for details on event modifiers.
+
 	- a symbolically formed event like 'pmu/param1=0x3,param2/' where
 	  param1 and param2 are defined as formats for the PMU in
 	  /sys/bus/event_sources/devices/<pmu>/format/*
