[gentoo-commits] proj/linux-patches:3.10 commit in: /

[Mike Pagano]

commit:     bb6262518ee99eb5e444a8cd8c6067fe52f55864
Author:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
AuthorDate: Mon Jul 28 19:39:32 2014 +0000
Commit:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
CommitDate: Mon Jul 28 19:39:32 2014 +0000
URL:        http://git.overlays.gentoo.org/gitweb/?p=proj/linux-patches.git;a=commit;h=bb626251

Linux patch 3.10.50

---
 0000_README              |    4 +
 1049_linux-3.10.50.patch | 1637 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 1641 insertions(+)

diff --git a/0000_README b/0000_README
index db70185..e86111a 100644
--- a/0000_README
+++ b/0000_README
@@ -238,6 +238,10 @@ Patch:  1048_linux-3.10.49.patch
 From:   http://www.kernel.org
 Desc:   Linux 3.10.49
 
+Patch:  1049_linux-3.10.50.patch
+From:   http://www.kernel.org
+Desc:   Linux 3.10.50
+
 Patch:  1500_XATTR_USER_PREFIX.patch
 From:   https://bugs.gentoo.org/show_bug.cgi?id=470644
 Desc:   Support for namespace user.pax.* on tmpfs.

diff --git a/1049_linux-3.10.50.patch b/1049_linux-3.10.50.patch
new file mode 100644
index 0000000..643e891
--- /dev/null
+++ b/1049_linux-3.10.50.patch
@@ -0,0 +1,1637 @@
+diff --git a/Makefile b/Makefile
+index b8b8d33eab55..8d891c66803c 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,6 +1,6 @@
+ VERSION = 3
+ PATCHLEVEL = 10
+-SUBLEVEL = 49
++SUBLEVEL = 50
+ EXTRAVERSION =
+ NAME = TOSSUG Baby Fish
+ 
+diff --git a/arch/arc/include/uapi/asm/ptrace.h b/arch/arc/include/uapi/asm/ptrace.h
+index 30333cec0fef..ef9d79a3db25 100644
+--- a/arch/arc/include/uapi/asm/ptrace.h
++++ b/arch/arc/include/uapi/asm/ptrace.h
+@@ -11,6 +11,7 @@
+ #ifndef _UAPI__ASM_ARC_PTRACE_H
+ #define _UAPI__ASM_ARC_PTRACE_H
+ 
++#define PTRACE_GET_THREAD_AREA	25
+ 
+ #ifndef __ASSEMBLY__
+ /*
+diff --git a/arch/arc/kernel/ptrace.c b/arch/arc/kernel/ptrace.c
+index 0851604bb9cd..f8a36ed9e0d5 100644
+--- a/arch/arc/kernel/ptrace.c
++++ b/arch/arc/kernel/ptrace.c
+@@ -136,6 +136,10 @@ long arch_ptrace(struct task_struct *child, long request,
+ 	pr_debug("REQ=%ld: ADDR =0x%lx, DATA=0x%lx)\n", request, addr, data);
+ 
+ 	switch (request) {
++	case PTRACE_GET_THREAD_AREA:
++		ret = put_user(task_thread_info(child)->thr_ptr,
++			       (unsigned long __user *)data);
++		break;
+ 	default:
+ 		ret = ptrace_request(child, request, addr, data);
+ 		break;
+diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
+index 18a9f5ef643a..d41951246cd6 100644
+--- a/arch/arm/Kconfig
++++ b/arch/arm/Kconfig
+@@ -4,6 +4,7 @@ config ARM
+ 	select ARCH_BINFMT_ELF_RANDOMIZE_PIE
+ 	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
+ 	select ARCH_HAVE_CUSTOM_GPIO_H
++	select ARCH_SUPPORTS_ATOMIC_RMW
+ 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
+ 	select ARCH_WANT_IPC_PARSE_VERSION
+ 	select BUILDTIME_EXTABLE_SORT if MMU
+diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
+index 56b3f6d447ae..0677ff4814fa 100644
+--- a/arch/arm64/Kconfig
++++ b/arch/arm64/Kconfig
+@@ -1,6 +1,7 @@
+ config ARM64
+ 	def_bool y
+ 	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
++	select ARCH_SUPPORTS_ATOMIC_RMW
+ 	select ARCH_WANT_OPTIONAL_GPIOLIB
+ 	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
+ 	select ARCH_WANT_FRAME_POINTERS
+diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
+index fe404e77246e..7f656f119ea6 100644
+--- a/arch/powerpc/Kconfig
++++ b/arch/powerpc/Kconfig
+@@ -138,6 +138,7 @@ config PPC
+ 	select ARCH_USE_BUILTIN_BSWAP
+ 	select OLD_SIGSUSPEND
+ 	select OLD_SIGACTION if PPC32
++	select ARCH_SUPPORTS_ATOMIC_RMW
+ 
+ config EARLY_PRINTK
+ 	bool
+diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
+index 2668b3142fa2..03a1bc3c3dde 100644
+--- a/arch/sparc/Kconfig
++++ b/arch/sparc/Kconfig
+@@ -77,6 +77,7 @@ config SPARC64
+ 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
+ 	select HAVE_C_RECORDMCOUNT
+ 	select NO_BOOTMEM
++	select ARCH_SUPPORTS_ATOMIC_RMW
+ 
+ config ARCH_DEFCONFIG
+ 	string
+diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
+index fe120da25625..af88b27ce313 100644
+--- a/arch/x86/Kconfig
++++ b/arch/x86/Kconfig
+@@ -121,6 +121,7 @@ config X86
+ 	select OLD_SIGACTION if X86_32
+ 	select COMPAT_OLD_SIGACTION if IA32_EMULATION
+ 	select RTC_LIB
++	select ARCH_SUPPORTS_ATOMIC_RMW
+ 
+ config INSTRUCTION_DECODER
+ 	def_bool y
+diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
+index a9e22073bd56..b45ac6affa9c 100644
+--- a/arch/x86/kernel/cpu/perf_event_intel.c
++++ b/arch/x86/kernel/cpu/perf_event_intel.c
+@@ -1199,6 +1199,15 @@ again:
+ 	intel_pmu_lbr_read();
+ 
+ 	/*
++	 * CondChgd bit 63 doesn't mean any overflow status. Ignore
++	 * and clear the bit.
++	 */
++	if (__test_and_clear_bit(63, (unsigned long *)&status)) {
++		if (!status)
++			goto done;
++	}
++
++	/*
+ 	 * PEBS overflow sets bit 62 in the global status register
+ 	 */
+ 	if (__test_and_clear_bit(62, (unsigned long *)&status)) {
+diff --git a/drivers/bluetooth/hci_h5.c b/drivers/bluetooth/hci_h5.c
+index b6154d5a07a5..db0be2fb05fe 100644
+--- a/drivers/bluetooth/hci_h5.c
++++ b/drivers/bluetooth/hci_h5.c
+@@ -406,6 +406,7 @@ static int h5_rx_3wire_hdr(struct hci_uart *hu, unsigned char c)
+ 	    H5_HDR_PKT_TYPE(hdr) != HCI_3WIRE_LINK_PKT) {
+ 		BT_ERR("Non-link packet received in non-active state");
+ 		h5_reset_rx(h5);
++		return 0;
+ 	}
+ 
+ 	h5->rx_func = h5_rx_payload;
+diff --git a/drivers/gpu/drm/qxl/qxl_irq.c b/drivers/gpu/drm/qxl/qxl_irq.c
+index 21393dc4700a..f4b6b89b98f3 100644
+--- a/drivers/gpu/drm/qxl/qxl_irq.c
++++ b/drivers/gpu/drm/qxl/qxl_irq.c
+@@ -33,6 +33,9 @@ irqreturn_t qxl_irq_handler(DRM_IRQ_ARGS)
+ 
+ 	pending = xchg(&qdev->ram_header->int_pending, 0);
+ 
++	if (!pending)
++		return IRQ_NONE;
++
+ 	atomic_inc(&qdev->irq_received);
+ 
+ 	if (pending & QXL_INTERRUPT_DISPLAY) {
+diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c
+index 5802d7486354..1b564d7e4191 100644
+--- a/drivers/gpu/drm/radeon/atombios_encoders.c
++++ b/drivers/gpu/drm/radeon/atombios_encoders.c
+@@ -183,7 +183,6 @@ void radeon_atom_backlight_init(struct radeon_encoder *radeon_encoder,
+ 	struct backlight_properties props;
+ 	struct radeon_backlight_privdata *pdata;
+ 	struct radeon_encoder_atom_dig *dig;
+-	u8 backlight_level;
+ 	char bl_name[16];
+ 
+ 	/* Mac laptops with multiple GPUs use the gmux driver for backlight
+@@ -222,12 +221,17 @@ void radeon_atom_backlight_init(struct radeon_encoder *radeon_encoder,
+ 
+ 	pdata->encoder = radeon_encoder;
+ 
+-	backlight_level = radeon_atom_get_backlight_level_from_reg(rdev);
+-
+ 	dig = radeon_encoder->enc_priv;
+ 	dig->bl_dev = bd;
+ 
+ 	bd->props.brightness = radeon_atom_backlight_get_brightness(bd);
++	/* Set a reasonable default here if the level is 0 otherwise
++	 * fbdev will attempt to turn the backlight on after console
++	 * unblanking and it will try and restore 0 which turns the backlight
++	 * off again.
++	 */
++	if (bd->props.brightness == 0)
++		bd->props.brightness = RADEON_MAX_BL_LEVEL;
+ 	bd->props.power = FB_BLANK_UNBLANK;
+ 	backlight_update_status(bd);
+ 
+diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
+index 06ccfe477650..a84de32a91f5 100644
+--- a/drivers/gpu/drm/radeon/radeon_display.c
++++ b/drivers/gpu/drm/radeon/radeon_display.c
+@@ -688,6 +688,10 @@ int radeon_ddc_get_modes(struct radeon_connector *radeon_connector)
+ 	struct radeon_device *rdev = dev->dev_private;
+ 	int ret = 0;
+ 
++	/* don't leak the edid if we already fetched it in detect() */
++	if (radeon_connector->edid)
++		goto got_edid;
++
+ 	/* on hw with routers, select right port */
+ 	if (radeon_connector->router.ddc_valid)
+ 		radeon_router_select_ddc_port(radeon_connector);
+@@ -727,6 +731,7 @@ int radeon_ddc_get_modes(struct radeon_connector *radeon_connector)
+ 			radeon_connector->edid = radeon_bios_get_hardcoded_edid(rdev);
+ 	}
+ 	if (radeon_connector->edid) {
++got_edid:
+ 		drm_mode_connector_update_edid_property(&radeon_connector->base, radeon_connector->edid);
+ 		ret = drm_add_edid_modes(&radeon_connector->base, radeon_connector->edid);
+ 		drm_edid_to_eld(&radeon_connector->base, radeon_connector->edid);
+diff --git a/drivers/hv/hv_kvp.c b/drivers/hv/hv_kvp.c
+index ed50e9e83c61..0e8c1ea4dd53 100644
+--- a/drivers/hv/hv_kvp.c
++++ b/drivers/hv/hv_kvp.c
+@@ -111,6 +111,15 @@ kvp_work_func(struct work_struct *dummy)
+ 	kvp_respond_to_host(NULL, HV_E_FAIL);
+ }
+ 
++static void poll_channel(struct vmbus_channel *channel)
++{
++	unsigned long flags;
++
++	spin_lock_irqsave(&channel->inbound_lock, flags);
++	hv_kvp_onchannelcallback(channel);
++	spin_unlock_irqrestore(&channel->inbound_lock, flags);
++}
++
+ static int kvp_handle_handshake(struct hv_kvp_msg *msg)
+ {
+ 	int ret = 1;
+@@ -139,7 +148,7 @@ static int kvp_handle_handshake(struct hv_kvp_msg *msg)
+ 		kvp_register(dm_reg_value);
+ 		kvp_transaction.active = false;
+ 		if (kvp_transaction.kvp_context)
+-			hv_kvp_onchannelcallback(kvp_transaction.kvp_context);
++			poll_channel(kvp_transaction.kvp_context);
+ 	}
+ 	return ret;
+ }
+@@ -552,6 +561,7 @@ response_done:
+ 
+ 	vmbus_sendpacket(channel, recv_buffer, buf_len, req_id,
+ 				VM_PKT_DATA_INBAND, 0);
++	poll_channel(channel);
+ 
+ }
+ 
+@@ -585,7 +595,7 @@ void hv_kvp_onchannelcallback(void *context)
+ 		return;
+ 	}
+ 
+-	vmbus_recvpacket(channel, recv_buffer, PAGE_SIZE * 2, &recvlen,
++	vmbus_recvpacket(channel, recv_buffer, PAGE_SIZE * 4, &recvlen,
+ 			 &requestid);
+ 
+ 	if (recvlen > 0) {
+diff --git a/drivers/hv/hv_util.c b/drivers/hv/hv_util.c
+index 2f561c5dfe24..64c778f7756f 100644
+--- a/drivers/hv/hv_util.c
++++ b/drivers/hv/hv_util.c
+@@ -279,7 +279,7 @@ static int util_probe(struct hv_device *dev,
+ 		(struct hv_util_service *)dev_id->driver_data;
+ 	int ret;
+ 
+-	srv->recv_buffer = kmalloc(PAGE_SIZE * 2, GFP_KERNEL);
++	srv->recv_buffer = kmalloc(PAGE_SIZE * 4, GFP_KERNEL);
+ 	if (!srv->recv_buffer)
+ 		return -ENOMEM;
+ 	if (srv->util_init) {
+diff --git a/drivers/hwmon/adt7470.c b/drivers/hwmon/adt7470.c
+index 58637355c1f6..79610bdf1d35 100644
+--- a/drivers/hwmon/adt7470.c
++++ b/drivers/hwmon/adt7470.c
+@@ -515,7 +515,7 @@ static ssize_t set_temp_min(struct device *dev,
+ 		return -EINVAL;
+ 
+ 	temp = DIV_ROUND_CLOSEST(temp, 1000);
+-	temp = clamp_val(temp, 0, 255);
++	temp = clamp_val(temp, -128, 127);
+ 
+ 	mutex_lock(&data->lock);
+ 	data->temp_min[attr->index] = temp;
+@@ -549,7 +549,7 @@ static ssize_t set_temp_max(struct device *dev,
+ 		return -EINVAL;
+ 
+ 	temp = DIV_ROUND_CLOSEST(temp, 1000);
+-	temp = clamp_val(temp, 0, 255);
++	temp = clamp_val(temp, -128, 127);
+ 
+ 	mutex_lock(&data->lock);
+ 	data->temp_max[attr->index] = temp;
+@@ -826,7 +826,7 @@ static ssize_t set_pwm_tmin(struct device *dev,
+ 		return -EINVAL;
+ 
+ 	temp = DIV_ROUND_CLOSEST(temp, 1000);
+-	temp = clamp_val(temp, 0, 255);
++	temp = clamp_val(temp, -128, 127);
+ 
+ 	mutex_lock(&data->lock);
+ 	data->pwm_tmin[attr->index] = temp;
+diff --git a/drivers/hwmon/da9052-hwmon.c b/drivers/hwmon/da9052-hwmon.c
+index 960fac3fb166..48044b044b7a 100644
+--- a/drivers/hwmon/da9052-hwmon.c
++++ b/drivers/hwmon/da9052-hwmon.c
+@@ -194,7 +194,7 @@ static ssize_t da9052_hwmon_show_name(struct device *dev,
+ 				      struct device_attribute *devattr,
+ 				      char *buf)
+ {
+-	return sprintf(buf, "da9052-hwmon\n");
++	return sprintf(buf, "da9052\n");
+ }
+ 
+ static ssize_t show_label(struct device *dev,
+diff --git a/drivers/hwmon/da9055-hwmon.c b/drivers/hwmon/da9055-hwmon.c
+index 029ecabc4380..1b275a2881d6 100644
+--- a/drivers/hwmon/da9055-hwmon.c
++++ b/drivers/hwmon/da9055-hwmon.c
+@@ -204,7 +204,7 @@ static ssize_t da9055_hwmon_show_name(struct device *dev,
+ 				      struct device_attribute *devattr,
+ 				      char *buf)
+ {
+-	return sprintf(buf, "da9055-hwmon\n");
++	return sprintf(buf, "da9055\n");
+ }
+ 
+ static ssize_t show_label(struct device *dev,
+diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
+index 4e11218d644e..c8ee1cb023b8 100644
+--- a/drivers/irqchip/irq-gic.c
++++ b/drivers/irqchip/irq-gic.c
+@@ -42,6 +42,7 @@
+ #include <linux/irqchip/chained_irq.h>
+ #include <linux/irqchip/arm-gic.h>
+ 
++#include <asm/cputype.h>
+ #include <asm/irq.h>
+ #include <asm/exception.h>
+ #include <asm/smp_plat.h>
+@@ -754,7 +755,9 @@ void __init gic_init_bases(unsigned int gic_nr, int irq_start,
+ 		}
+ 
+ 		for_each_possible_cpu(cpu) {
+-			unsigned long offset = percpu_offset * cpu_logical_map(cpu);
++			u32 mpidr = cpu_logical_map(cpu);
++			u32 core_id = MPIDR_AFFINITY_LEVEL(mpidr, 0);
++			unsigned long offset = percpu_offset * core_id;
+ 			*per_cpu_ptr(gic->dist_base.percpu_base, cpu) = dist_base + offset;
+ 			*per_cpu_ptr(gic->cpu_base.percpu_base, cpu) = cpu_base + offset;
+ 		}
+@@ -858,6 +861,7 @@ int __init gic_of_init(struct device_node *node, struct device_node *parent)
+ }
+ IRQCHIP_DECLARE(cortex_a15_gic, "arm,cortex-a15-gic", gic_of_init);
+ IRQCHIP_DECLARE(cortex_a9_gic, "arm,cortex-a9-gic", gic_of_init);
++IRQCHIP_DECLARE(cortex_a7_gic, "arm,cortex-a7-gic", gic_of_init);
+ IRQCHIP_DECLARE(msm_8660_qgic, "qcom,msm-8660-qgic", gic_of_init);
+ IRQCHIP_DECLARE(msm_qgic2, "qcom,msm-qgic2", gic_of_init);
+ 
+diff --git a/drivers/md/dm-cache-metadata.c b/drivers/md/dm-cache-metadata.c
+index a33e07f4222e..de737ba1d351 100644
+--- a/drivers/md/dm-cache-metadata.c
++++ b/drivers/md/dm-cache-metadata.c
+@@ -384,6 +384,15 @@ static int __open_metadata(struct dm_cache_metadata *cmd)
+ 
+ 	disk_super = dm_block_data(sblock);
+ 
++	/* Verify the data block size hasn't changed */
++	if (le32_to_cpu(disk_super->data_block_size) != cmd->data_block_size) {
++		DMERR("changing the data block size (from %u to %llu) is not supported",
++		      le32_to_cpu(disk_super->data_block_size),
++		      (unsigned long long)cmd->data_block_size);
++		r = -EINVAL;
++		goto bad;
++	}
++
+ 	r = __check_incompat_features(disk_super, cmd);
+ 	if (r < 0)
+ 		goto bad;
+diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c
+index 5f49d704f275..3b1503dc1f13 100644
+--- a/drivers/md/dm-thin-metadata.c
++++ b/drivers/md/dm-thin-metadata.c
+@@ -591,6 +591,15 @@ static int __open_metadata(struct dm_pool_metadata *pmd)
+ 
+ 	disk_super = dm_block_data(sblock);
+ 
++	/* Verify the data block size hasn't changed */
++	if (le32_to_cpu(disk_super->data_block_size) != pmd->data_block_size) {
++		DMERR("changing the data block size (from %u to %llu) is not supported",
++		      le32_to_cpu(disk_super->data_block_size),
++		      (unsigned long long)pmd->data_block_size);
++		r = -EINVAL;
++		goto bad_unlock_sblock;
++	}
++
+ 	r = __check_incompat_features(disk_super, pmd);
+ 	if (r < 0)
+ 		goto bad_unlock_sblock;
+diff --git a/drivers/media/usb/gspca/pac7302.c b/drivers/media/usb/gspca/pac7302.c
+index 6008c8d546a3..20d9c15a305d 100644
+--- a/drivers/media/usb/gspca/pac7302.c
++++ b/drivers/media/usb/gspca/pac7302.c
+@@ -945,6 +945,7 @@ static const struct usb_device_id device_table[] = {
+ 	{USB_DEVICE(0x093a, 0x2620)},
+ 	{USB_DEVICE(0x093a, 0x2621)},
+ 	{USB_DEVICE(0x093a, 0x2622), .driver_info = FL_VFLIP},
++	{USB_DEVICE(0x093a, 0x2623), .driver_info = FL_VFLIP},
+ 	{USB_DEVICE(0x093a, 0x2624), .driver_info = FL_VFLIP},
+ 	{USB_DEVICE(0x093a, 0x2625)},
+ 	{USB_DEVICE(0x093a, 0x2626)},
+diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+index 70be100feeb4..b04f7f128f49 100644
+--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
++++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+@@ -745,7 +745,8 @@ static void bnx2x_tpa_stop(struct bnx2x *bp, struct bnx2x_fastpath *fp,
+ 
+ 		return;
+ 	}
+-	bnx2x_frag_free(fp, new_data);
++	if (new_data)
++		bnx2x_frag_free(fp, new_data);
+ drop:
+ 	/* drop the packet and keep the buffer in the bin */
+ 	DP(NETIF_MSG_RX_STATUS,
+diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
+index 7371626c56a1..d81a7dbfeef6 100644
+--- a/drivers/net/ethernet/emulex/benet/be_main.c
++++ b/drivers/net/ethernet/emulex/benet/be_main.c
+@@ -2663,7 +2663,7 @@ static int be_open(struct net_device *netdev)
+ 
+ 	for_all_evt_queues(adapter, eqo, i) {
+ 		napi_enable(&eqo->napi);
+-		be_eq_notify(adapter, eqo->q.id, true, false, 0);
++		be_eq_notify(adapter, eqo->q.id, true, true, 0);
+ 	}
+ 	adapter->flags |= BE_FLAGS_NAPI_ENABLED;
+ 
+diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
+index 64cbe0dfe043..4d3c8122e2aa 100644
+--- a/drivers/net/ethernet/intel/igb/igb_main.c
++++ b/drivers/net/ethernet/intel/igb/igb_main.c
+@@ -7229,6 +7229,8 @@ static int igb_sriov_reinit(struct pci_dev *dev)
+ 
+ 	if (netif_running(netdev))
+ 		igb_close(netdev);
++	else
++		igb_reset(adapter);
+ 
+ 	igb_clear_interrupt_scheme(adapter);
+ 
+diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
+index a602aeeb3acb..658613021919 100644
+--- a/drivers/net/ethernet/marvell/mvneta.c
++++ b/drivers/net/ethernet/marvell/mvneta.c
+@@ -1145,7 +1145,7 @@ static u32 mvneta_txq_desc_csum(int l3_offs, int l3_proto,
+ 	command =  l3_offs    << MVNETA_TX_L3_OFF_SHIFT;
+ 	command |= ip_hdr_len << MVNETA_TX_IP_HLEN_SHIFT;
+ 
+-	if (l3_proto == swab16(ETH_P_IP))
++	if (l3_proto == htons(ETH_P_IP))
+ 		command |= MVNETA_TXD_IP_CSUM;
+ 	else
+ 		command |= MVNETA_TX_L3_IP6;
+@@ -2306,7 +2306,7 @@ static void mvneta_adjust_link(struct net_device *ndev)
+ 
+ 			if (phydev->speed == SPEED_1000)
+ 				val |= MVNETA_GMAC_CONFIG_GMII_SPEED;
+-			else
++			else if (phydev->speed == SPEED_100)
+ 				val |= MVNETA_GMAC_CONFIG_MII_SPEED;
+ 
+ 			mvreg_write(pp, MVNETA_GMAC_AUTONEG_CONFIG, val);
+diff --git a/drivers/net/ethernet/sun/sunvnet.c b/drivers/net/ethernet/sun/sunvnet.c
+index 3df56840a3b9..398faff8be7a 100644
+--- a/drivers/net/ethernet/sun/sunvnet.c
++++ b/drivers/net/ethernet/sun/sunvnet.c
+@@ -1083,6 +1083,24 @@ static struct vnet *vnet_find_or_create(const u64 *local_mac)
+ 	return vp;
+ }
+ 
++static void vnet_cleanup(void)
++{
++	struct vnet *vp;
++	struct net_device *dev;
++
++	mutex_lock(&vnet_list_mutex);
++	while (!list_empty(&vnet_list)) {
++		vp = list_first_entry(&vnet_list, struct vnet, list);
++		list_del(&vp->list);
++		dev = vp->dev;
++		/* vio_unregister_driver() should have cleaned up port_list */
++		BUG_ON(!list_empty(&vp->port_list));
++		unregister_netdev(dev);
++		free_netdev(dev);
++	}
++	mutex_unlock(&vnet_list_mutex);
++}
++
+ static const char *local_mac_prop = "local-mac-address";
+ 
+ static struct vnet *vnet_find_parent(struct mdesc_handle *hp,
+@@ -1240,7 +1258,6 @@ static int vnet_port_remove(struct vio_dev *vdev)
+ 
+ 		kfree(port);
+ 
+-		unregister_netdev(vp->dev);
+ 	}
+ 	return 0;
+ }
+@@ -1268,6 +1285,7 @@ static int __init vnet_init(void)
+ static void __exit vnet_exit(void)
+ {
+ 	vio_unregister_driver(&vnet_port_driver);
++	vnet_cleanup();
+ }
+ 
+ module_init(vnet_init);
+diff --git a/drivers/net/ppp/pppoe.c b/drivers/net/ppp/pppoe.c
+index 6839fb07a4c9..becfa3ef7fdc 100644
+--- a/drivers/net/ppp/pppoe.c
++++ b/drivers/net/ppp/pppoe.c
+@@ -675,7 +675,7 @@ static int pppoe_connect(struct socket *sock, struct sockaddr *uservaddr,
+ 		po->chan.hdrlen = (sizeof(struct pppoe_hdr) +
+ 				   dev->hard_header_len);
+ 
+-		po->chan.mtu = dev->mtu - sizeof(struct pppoe_hdr);
++		po->chan.mtu = dev->mtu - sizeof(struct pppoe_hdr) - 2;
+ 		po->chan.private = sk;
+ 		po->chan.ops = &pppoe_chan_ops;
+ 
+diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
+index 6fb0082b3308..6c584f8a2268 100644
+--- a/drivers/net/usb/qmi_wwan.c
++++ b/drivers/net/usb/qmi_wwan.c
+@@ -647,6 +647,7 @@ static const struct usb_device_id products[] = {
+ 	{QMI_FIXED_INTF(0x05c6, 0x9084, 4)},
+ 	{QMI_FIXED_INTF(0x05c6, 0x920d, 0)},
+ 	{QMI_FIXED_INTF(0x05c6, 0x920d, 5)},
++	{QMI_FIXED_INTF(0x0846, 0x68a2, 8)},
+ 	{QMI_FIXED_INTF(0x12d1, 0x140c, 1)},	/* Huawei E173 */
+ 	{QMI_FIXED_INTF(0x12d1, 0x14ac, 1)},	/* Huawei E1820 */
+ 	{QMI_FIXED_INTF(0x16d8, 0x6003, 0)},	/* CMOTech 6003 */
+@@ -721,6 +722,7 @@ static const struct usb_device_id products[] = {
+ 	{QMI_FIXED_INTF(0x19d2, 0x1424, 2)},
+ 	{QMI_FIXED_INTF(0x19d2, 0x1425, 2)},
+ 	{QMI_FIXED_INTF(0x19d2, 0x1426, 2)},	/* ZTE MF91 */
++	{QMI_FIXED_INTF(0x19d2, 0x1428, 2)},	/* Telewell TW-LTE 4G v2 */
+ 	{QMI_FIXED_INTF(0x19d2, 0x2002, 4)},	/* ZTE (Vodafone) K3765-Z */
+ 	{QMI_FIXED_INTF(0x0f3d, 0x68a2, 8)},    /* Sierra Wireless MC7700 */
+ 	{QMI_FIXED_INTF(0x114f, 0x68a2, 8)},    /* Sierra Wireless MC7750 */
+@@ -733,6 +735,7 @@ static const struct usb_device_id products[] = {
+ 	{QMI_FIXED_INTF(0x1199, 0x901f, 8)},    /* Sierra Wireless EM7355 */
+ 	{QMI_FIXED_INTF(0x1199, 0x9041, 8)},	/* Sierra Wireless MC7305/MC7355 */
+ 	{QMI_FIXED_INTF(0x1199, 0x9051, 8)},	/* Netgear AirCard 340U */
++	{QMI_FIXED_INTF(0x1199, 0x9057, 8)},
+ 	{QMI_FIXED_INTF(0x1bbb, 0x011e, 4)},	/* Telekom Speedstick LTE II (Alcatel One Touch L100V LTE) */
+ 	{QMI_FIXED_INTF(0x1bbb, 0x0203, 2)},	/* Alcatel L800MA */
+ 	{QMI_FIXED_INTF(0x2357, 0x0201, 4)},	/* TP-LINK HSUPA Modem MA180 */
+diff --git a/drivers/net/wireless/iwlwifi/dvm/rxon.c b/drivers/net/wireless/iwlwifi/dvm/rxon.c
+index cd1ad0019185..ca17e4c9eca2 100644
+--- a/drivers/net/wireless/iwlwifi/dvm/rxon.c
++++ b/drivers/net/wireless/iwlwifi/dvm/rxon.c
+@@ -1072,13 +1072,6 @@ int iwlagn_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
+ 	/* recalculate basic rates */
+ 	iwl_calc_basic_rates(priv, ctx);
+ 
+-	/*
+-	 * force CTS-to-self frames protection if RTS-CTS is not preferred
+-	 * one aggregation protection method
+-	 */
+-	if (!priv->hw_params.use_rts_for_aggregation)
+-		ctx->staging.flags |= RXON_FLG_SELF_CTS_EN;
+-
+ 	if ((ctx->vif && ctx->vif->bss_conf.use_short_slot) ||
+ 	    !(ctx->staging.flags & RXON_FLG_BAND_24G_MSK))
+ 		ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK;
+@@ -1484,11 +1477,6 @@ void iwlagn_bss_info_changed(struct ieee80211_hw *hw,
+ 	else
+ 		ctx->staging.flags &= ~RXON_FLG_TGG_PROTECT_MSK;
+ 
+-	if (bss_conf->use_cts_prot)
+-		ctx->staging.flags |= RXON_FLG_SELF_CTS_EN;
+-	else
+-		ctx->staging.flags &= ~RXON_FLG_SELF_CTS_EN;
+-
+ 	memcpy(ctx->staging.bssid_addr, bss_conf->bssid, ETH_ALEN);
+ 
+ 	if (vif->type == NL80211_IFTYPE_AP ||
+diff --git a/drivers/net/wireless/mwifiex/main.c b/drivers/net/wireless/mwifiex/main.c
+index fc3fe8ddcf62..83c61964d082 100644
+--- a/drivers/net/wireless/mwifiex/main.c
++++ b/drivers/net/wireless/mwifiex/main.c
+@@ -501,6 +501,7 @@ mwifiex_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
+ 	}
+ 
+ 	tx_info = MWIFIEX_SKB_TXCB(skb);
++	memset(tx_info, 0, sizeof(*tx_info));
+ 	tx_info->bss_num = priv->bss_num;
+ 	tx_info->bss_type = priv->bss_type;
+ 
+diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
+index 46efdca96952..63c217053668 100644
+--- a/drivers/usb/core/hub.c
++++ b/drivers/usb/core/hub.c
+@@ -887,6 +887,25 @@ static int hub_usb3_port_disable(struct usb_hub *hub, int port1)
+ 	if (!hub_is_superspeed(hub->hdev))
+ 		return -EINVAL;
+ 
++	ret = hub_port_status(hub, port1, &portstatus, &portchange);
++	if (ret < 0)
++		return ret;
++
++	/*
++	 * USB controller Advanced Micro Devices, Inc. [AMD] FCH USB XHCI
++	 * Controller [1022:7814] will have spurious result making the following
++	 * usb 3.0 device hotplugging route to the 2.0 root hub and recognized
++	 * as high-speed device if we set the usb 3.0 port link state to
++	 * Disabled. Since it's already in USB_SS_PORT_LS_RX_DETECT state, we
++	 * check the state here to avoid the bug.
++	 */
++	if ((portstatus & USB_PORT_STAT_LINK_STATE) ==
++				USB_SS_PORT_LS_RX_DETECT) {
++		dev_dbg(&hub->ports[port1 - 1]->dev,
++			 "Not disabling port; link state is RxDetect\n");
++		return ret;
++	}
++
+ 	ret = hub_set_port_link_state(hub, port1, USB_SS_PORT_LS_SS_DISABLED);
+ 	if (ret)
+ 		return ret;
+diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
+index b5718516825b..39a986e1da9e 100644
+--- a/fs/fuse/inode.c
++++ b/fs/fuse/inode.c
+@@ -461,6 +461,17 @@ static const match_table_t tokens = {
+ 	{OPT_ERR,			NULL}
+ };
+ 
++static int fuse_match_uint(substring_t *s, unsigned int *res)
++{
++	int err = -ENOMEM;
++	char *buf = match_strdup(s);
++	if (buf) {
++		err = kstrtouint(buf, 10, res);
++		kfree(buf);
++	}
++	return err;
++}
++
+ static int parse_fuse_opt(char *opt, struct fuse_mount_data *d, int is_bdev)
+ {
+ 	char *p;
+@@ -471,6 +482,7 @@ static int parse_fuse_opt(char *opt, struct fuse_mount_data *d, int is_bdev)
+ 	while ((p = strsep(&opt, ",")) != NULL) {
+ 		int token;
+ 		int value;
++		unsigned uv;
+ 		substring_t args[MAX_OPT_ARGS];
+ 		if (!*p)
+ 			continue;
+@@ -494,18 +506,18 @@ static int parse_fuse_opt(char *opt, struct fuse_mount_data *d, int is_bdev)
+ 			break;
+ 
+ 		case OPT_USER_ID:
+-			if (match_int(&args[0], &value))
++			if (fuse_match_uint(&args[0], &uv))
+ 				return 0;
+-			d->user_id = make_kuid(current_user_ns(), value);
++			d->user_id = make_kuid(current_user_ns(), uv);
+ 			if (!uid_valid(d->user_id))
+ 				return 0;
+ 			d->user_id_present = 1;
+ 			break;
+ 
+ 		case OPT_GROUP_ID:
+-			if (match_int(&args[0], &value))
++			if (fuse_match_uint(&args[0], &uv))
+ 				return 0;
+-			d->group_id = make_kgid(current_user_ns(), value);
++			d->group_id = make_kgid(current_user_ns(), uv);
+ 			if (!gid_valid(d->group_id))
+ 				return 0;
+ 			d->group_id_present = 1;
+diff --git a/include/net/sock.h b/include/net/sock.h
+index 72f710d2f75a..26b15c0780be 100644
+--- a/include/net/sock.h
++++ b/include/net/sock.h
+@@ -1727,8 +1727,8 @@ sk_dst_get(struct sock *sk)
+ 
+ 	rcu_read_lock();
+ 	dst = rcu_dereference(sk->sk_dst_cache);
+-	if (dst)
+-		dst_hold(dst);
++	if (dst && !atomic_inc_not_zero(&dst->__refcnt))
++		dst = NULL;
+ 	rcu_read_unlock();
+ 	return dst;
+ }
+@@ -1767,9 +1767,11 @@ __sk_dst_set(struct sock *sk, struct dst_entry *dst)
+ static inline void
+ sk_dst_set(struct sock *sk, struct dst_entry *dst)
+ {
+-	spin_lock(&sk->sk_dst_lock);
+-	__sk_dst_set(sk, dst);
+-	spin_unlock(&sk->sk_dst_lock);
++	struct dst_entry *old_dst;
++
++	sk_tx_queue_clear(sk);
++	old_dst = xchg((__force struct dst_entry **)&sk->sk_dst_cache, dst);
++	dst_release(old_dst);
+ }
+ 
+ static inline void
+@@ -1781,9 +1783,7 @@ __sk_dst_reset(struct sock *sk)
+ static inline void
+ sk_dst_reset(struct sock *sk)
+ {
+-	spin_lock(&sk->sk_dst_lock);
+-	__sk_dst_reset(sk);
+-	spin_unlock(&sk->sk_dst_lock);
++	sk_dst_set(sk, NULL);
+ }
+ 
+ extern struct dst_entry *__sk_dst_check(struct sock *sk, u32 cookie);
+diff --git a/kernel/Kconfig.locks b/kernel/Kconfig.locks
+index 44511d100eaa..e4d30533c562 100644
+--- a/kernel/Kconfig.locks
++++ b/kernel/Kconfig.locks
+@@ -220,6 +220,9 @@ config INLINE_WRITE_UNLOCK_IRQRESTORE
+ 
+ endif
+ 
++config ARCH_SUPPORTS_ATOMIC_RMW
++	bool
++
+ config MUTEX_SPIN_ON_OWNER
+ 	def_bool y
+-	depends on SMP && !DEBUG_MUTEXES
++	depends on SMP && !DEBUG_MUTEXES && ARCH_SUPPORTS_ATOMIC_RMW
+diff --git a/kernel/power/process.c b/kernel/power/process.c
+index 98088e0e71e8..1b212bee1510 100644
+--- a/kernel/power/process.c
++++ b/kernel/power/process.c
+@@ -174,6 +174,7 @@ void thaw_processes(void)
+ 
+ 	printk("Restarting tasks ... ");
+ 
++	__usermodehelper_set_disable_depth(UMH_FREEZING);
+ 	thaw_workqueues();
+ 
+ 	read_lock(&tasklist_lock);
+diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
+index e745a1548367..701b6c8a4b12 100644
+--- a/kernel/sched/debug.c
++++ b/kernel/sched/debug.c
+@@ -551,7 +551,7 @@ void proc_sched_show_task(struct task_struct *p, struct seq_file *m)
+ 
+ 		avg_atom = p->se.sum_exec_runtime;
+ 		if (nr_switches)
+-			do_div(avg_atom, nr_switches);
++			avg_atom = div64_ul(avg_atom, nr_switches);
+ 		else
+ 			avg_atom = -1LL;
+ 
+diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c
+index a8f5084dcde7..294bf4ef1f47 100644
+--- a/kernel/time/alarmtimer.c
++++ b/kernel/time/alarmtimer.c
+@@ -540,9 +540,14 @@ static int alarm_timer_set(struct k_itimer *timr, int flags,
+ 				struct itimerspec *new_setting,
+ 				struct itimerspec *old_setting)
+ {
++	ktime_t exp;
++
+ 	if (!rtcdev)
+ 		return -ENOTSUPP;
+ 
++	if (flags & ~TIMER_ABSTIME)
++		return -EINVAL;
++
+ 	if (old_setting)
+ 		alarm_timer_get(timr, old_setting);
+ 
+@@ -552,8 +557,16 @@ static int alarm_timer_set(struct k_itimer *timr, int flags,
+ 
+ 	/* start the timer */
+ 	timr->it.alarm.interval = timespec_to_ktime(new_setting->it_interval);
+-	alarm_start(&timr->it.alarm.alarmtimer,
+-			timespec_to_ktime(new_setting->it_value));
++	exp = timespec_to_ktime(new_setting->it_value);
++	/* Convert (if necessary) to absolute time */
++	if (flags != TIMER_ABSTIME) {
++		ktime_t now;
++
++		now = alarm_bases[timr->it.alarm.alarmtimer.type].gettime();
++		exp = ktime_add(now, exp);
++	}
++
++	alarm_start(&timr->it.alarm.alarmtimer, exp);
+ 	return 0;
+ }
+ 
+@@ -685,6 +698,9 @@ static int alarm_timer_nsleep(const clockid_t which_clock, int flags,
+ 	if (!alarmtimer_get_rtcdev())
+ 		return -ENOTSUPP;
+ 
++	if (flags & ~TIMER_ABSTIME)
++		return -EINVAL;
++
+ 	if (!capable(CAP_WAKE_ALARM))
+ 		return -EPERM;
+ 
+diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
+index 797d3b91a30b..401d9bd1fe42 100644
+--- a/kernel/trace/ftrace.c
++++ b/kernel/trace/ftrace.c
+@@ -331,12 +331,12 @@ static void update_ftrace_function(void)
+ 		func = ftrace_ops_list_func;
+ 	}
+ 
++	update_function_graph_func();
++
+ 	/* If there's no change, then do nothing more here */
+ 	if (ftrace_trace_function == func)
+ 		return;
+ 
+-	update_function_graph_func();
+-
+ 	/*
+ 	 * If we are using the list function, it doesn't care
+ 	 * about the function_trace_ops.
+diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
+index 8e94c1102636..4063d5fe5e44 100644
+--- a/kernel/trace/ring_buffer.c
++++ b/kernel/trace/ring_buffer.c
+@@ -616,10 +616,6 @@ int ring_buffer_poll_wait(struct ring_buffer *buffer, int cpu,
+ 	struct ring_buffer_per_cpu *cpu_buffer;
+ 	struct rb_irq_work *work;
+ 
+-	if ((cpu == RING_BUFFER_ALL_CPUS && !ring_buffer_empty(buffer)) ||
+-	    (cpu != RING_BUFFER_ALL_CPUS && !ring_buffer_empty_cpu(buffer, cpu)))
+-		return POLLIN | POLLRDNORM;
+-
+ 	if (cpu == RING_BUFFER_ALL_CPUS)
+ 		work = &buffer->irq_work;
+ 	else {
+diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
+index 8fe92ce43f39..98a830d079b9 100644
+--- a/kernel/trace/trace.c
++++ b/kernel/trace/trace.c
+@@ -423,6 +423,9 @@ int __trace_puts(unsigned long ip, const char *str, int size)
+ 	struct print_entry *entry;
+ 	unsigned long irq_flags;
+ 	int alloc;
++	int pc;
++
++	pc = preempt_count();
+ 
+ 	if (unlikely(tracing_selftest_running || tracing_disabled))
+ 		return 0;
+@@ -432,7 +435,7 @@ int __trace_puts(unsigned long ip, const char *str, int size)
+ 	local_save_flags(irq_flags);
+ 	buffer = global_trace.trace_buffer.buffer;
+ 	event = trace_buffer_lock_reserve(buffer, TRACE_PRINT, alloc, 
+-					  irq_flags, preempt_count());
++					  irq_flags, pc);
+ 	if (!event)
+ 		return 0;
+ 
+@@ -449,6 +452,7 @@ int __trace_puts(unsigned long ip, const char *str, int size)
+ 		entry->buf[size] = '\0';
+ 
+ 	__buffer_unlock_commit(buffer, event);
++	ftrace_trace_stack(buffer, irq_flags, 4, pc);
+ 
+ 	return size;
+ }
+@@ -466,6 +470,9 @@ int __trace_bputs(unsigned long ip, const char *str)
+ 	struct bputs_entry *entry;
+ 	unsigned long irq_flags;
+ 	int size = sizeof(struct bputs_entry);
++	int pc;
++
++	pc = preempt_count();
+ 
+ 	if (unlikely(tracing_selftest_running || tracing_disabled))
+ 		return 0;
+@@ -473,7 +480,7 @@ int __trace_bputs(unsigned long ip, const char *str)
+ 	local_save_flags(irq_flags);
+ 	buffer = global_trace.trace_buffer.buffer;
+ 	event = trace_buffer_lock_reserve(buffer, TRACE_BPUTS, size,
+-					  irq_flags, preempt_count());
++					  irq_flags, pc);
+ 	if (!event)
+ 		return 0;
+ 
+@@ -482,6 +489,7 @@ int __trace_bputs(unsigned long ip, const char *str)
+ 	entry->str			= str;
+ 
+ 	__buffer_unlock_commit(buffer, event);
++	ftrace_trace_stack(buffer, irq_flags, 4, pc);
+ 
+ 	return 1;
+ }
+diff --git a/mm/shmem.c b/mm/shmem.c
+index 509b393eceeb..16cc1d77f70a 100644
+--- a/mm/shmem.c
++++ b/mm/shmem.c
+@@ -80,11 +80,12 @@ static struct vfsmount *shm_mnt;
+ #define SHORT_SYMLINK_LEN 128
+ 
+ /*
+- * shmem_fallocate and shmem_writepage communicate via inode->i_private
+- * (with i_mutex making sure that it has only one user at a time):
+- * we would prefer not to enlarge the shmem inode just for that.
++ * shmem_fallocate communicates with shmem_fault or shmem_writepage via
++ * inode->i_private (with i_mutex making sure that it has only one user at
++ * a time): we would prefer not to enlarge the shmem inode just for that.
+  */
+ struct shmem_falloc {
++	wait_queue_head_t *waitq; /* faults into hole wait for punch to end */
+ 	pgoff_t start;		/* start of range currently being fallocated */
+ 	pgoff_t next;		/* the next page offset to be fallocated */
+ 	pgoff_t nr_falloced;	/* how many new pages have been fallocated */
+@@ -533,22 +534,19 @@ static void shmem_undo_range(struct inode *inode, loff_t lstart, loff_t lend,
+ 		return;
+ 
+ 	index = start;
+-	for ( ; ; ) {
++	while (index < end) {
+ 		cond_resched();
+ 		pvec.nr = shmem_find_get_pages_and_swap(mapping, index,
+ 				min(end - index, (pgoff_t)PAGEVEC_SIZE),
+ 							pvec.pages, indices);
+ 		if (!pvec.nr) {
+-			if (index == start || unfalloc)
++			/* If all gone or hole-punch or unfalloc, we're done */
++			if (index == start || end != -1)
+ 				break;
++			/* But if truncating, restart to make sure all gone */
+ 			index = start;
+ 			continue;
+ 		}
+-		if ((index == start || unfalloc) && indices[0] >= end) {
+-			shmem_deswap_pagevec(&pvec);
+-			pagevec_release(&pvec);
+-			break;
+-		}
+ 		mem_cgroup_uncharge_start();
+ 		for (i = 0; i < pagevec_count(&pvec); i++) {
+ 			struct page *page = pvec.pages[i];
+@@ -560,8 +558,12 @@ static void shmem_undo_range(struct inode *inode, loff_t lstart, loff_t lend,
+ 			if (radix_tree_exceptional_entry(page)) {
+ 				if (unfalloc)
+ 					continue;
+-				nr_swaps_freed += !shmem_free_swap(mapping,
+-								index, page);
++				if (shmem_free_swap(mapping, index, page)) {
++					/* Swap was replaced by page: retry */
++					index--;
++					break;
++				}
++				nr_swaps_freed++;
+ 				continue;
+ 			}
+ 
+@@ -570,6 +572,11 @@ static void shmem_undo_range(struct inode *inode, loff_t lstart, loff_t lend,
+ 				if (page->mapping == mapping) {
+ 					VM_BUG_ON(PageWriteback(page));
+ 					truncate_inode_page(mapping, page);
++				} else {
++					/* Page was replaced by swap: retry */
++					unlock_page(page);
++					index--;
++					break;
+ 				}
+ 			}
+ 			unlock_page(page);
+@@ -826,6 +833,7 @@ static int shmem_writepage(struct page *page, struct writeback_control *wbc)
+ 			spin_lock(&inode->i_lock);
+ 			shmem_falloc = inode->i_private;
+ 			if (shmem_falloc &&
++			    !shmem_falloc->waitq &&
+ 			    index >= shmem_falloc->start &&
+ 			    index < shmem_falloc->next)
+ 				shmem_falloc->nr_unswapped++;
+@@ -1300,6 +1308,64 @@ static int shmem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+ 	int error;
+ 	int ret = VM_FAULT_LOCKED;
+ 
++	/*
++	 * Trinity finds that probing a hole which tmpfs is punching can
++	 * prevent the hole-punch from ever completing: which in turn
++	 * locks writers out with its hold on i_mutex.  So refrain from
++	 * faulting pages into the hole while it's being punched.  Although
++	 * shmem_undo_range() does remove the additions, it may be unable to
++	 * keep up, as each new page needs its own unmap_mapping_range() call,
++	 * and the i_mmap tree grows ever slower to scan if new vmas are added.
++	 *
++	 * It does not matter if we sometimes reach this check just before the
++	 * hole-punch begins, so that one fault then races with the punch:
++	 * we just need to make racing faults a rare case.
++	 *
++	 * The implementation below would be much simpler if we just used a
++	 * standard mutex or completion: but we cannot take i_mutex in fault,
++	 * and bloating every shmem inode for this unlikely case would be sad.
++	 */
++	if (unlikely(inode->i_private)) {
++		struct shmem_falloc *shmem_falloc;
++
++		spin_lock(&inode->i_lock);
++		shmem_falloc = inode->i_private;
++		if (shmem_falloc &&
++		    shmem_falloc->waitq &&
++		    vmf->pgoff >= shmem_falloc->start &&
++		    vmf->pgoff < shmem_falloc->next) {
++			wait_queue_head_t *shmem_falloc_waitq;
++			DEFINE_WAIT(shmem_fault_wait);
++
++			ret = VM_FAULT_NOPAGE;
++			if ((vmf->flags & FAULT_FLAG_ALLOW_RETRY) &&
++			   !(vmf->flags & FAULT_FLAG_RETRY_NOWAIT)) {
++				/* It's polite to up mmap_sem if we can */
++				up_read(&vma->vm_mm->mmap_sem);
++				ret = VM_FAULT_RETRY;
++			}
++
++			shmem_falloc_waitq = shmem_falloc->waitq;
++			prepare_to_wait(shmem_falloc_waitq, &shmem_fault_wait,
++					TASK_UNINTERRUPTIBLE);
++			spin_unlock(&inode->i_lock);
++			schedule();
++
++			/*
++			 * shmem_falloc_waitq points into the shmem_fallocate()
++			 * stack of the hole-punching task: shmem_falloc_waitq
++			 * is usually invalid by the time we reach here, but
++			 * finish_wait() does not dereference it in that case;
++			 * though i_lock needed lest racing with wake_up_all().
++			 */
++			spin_lock(&inode->i_lock);
++			finish_wait(shmem_falloc_waitq, &shmem_fault_wait);
++			spin_unlock(&inode->i_lock);
++			return ret;
++		}
++		spin_unlock(&inode->i_lock);
++	}
++
+ 	error = shmem_getpage(inode, vmf->pgoff, &vmf->page, SGP_CACHE, &ret);
+ 	if (error)
+ 		return ((error == -ENOMEM) ? VM_FAULT_OOM : VM_FAULT_SIGBUS);
+@@ -1821,12 +1887,25 @@ static long shmem_fallocate(struct file *file, int mode, loff_t offset,
+ 		struct address_space *mapping = file->f_mapping;
+ 		loff_t unmap_start = round_up(offset, PAGE_SIZE);
+ 		loff_t unmap_end = round_down(offset + len, PAGE_SIZE) - 1;
++		DECLARE_WAIT_QUEUE_HEAD_ONSTACK(shmem_falloc_waitq);
++
++		shmem_falloc.waitq = &shmem_falloc_waitq;
++		shmem_falloc.start = unmap_start >> PAGE_SHIFT;
++		shmem_falloc.next = (unmap_end + 1) >> PAGE_SHIFT;
++		spin_lock(&inode->i_lock);
++		inode->i_private = &shmem_falloc;
++		spin_unlock(&inode->i_lock);
+ 
+ 		if ((u64)unmap_end > (u64)unmap_start)
+ 			unmap_mapping_range(mapping, unmap_start,
+ 					    1 + unmap_end - unmap_start, 0);
+ 		shmem_truncate_range(inode, offset, offset + len - 1);
+ 		/* No need to unmap again: hole-punching leaves COWed pages */
++
++		spin_lock(&inode->i_lock);
++		inode->i_private = NULL;
++		wake_up_all(&shmem_falloc_waitq);
++		spin_unlock(&inode->i_lock);
+ 		error = 0;
+ 		goto out;
+ 	}
+@@ -1844,6 +1923,7 @@ static long shmem_fallocate(struct file *file, int mode, loff_t offset,
+ 		goto out;
+ 	}
+ 
++	shmem_falloc.waitq = NULL;
+ 	shmem_falloc.start = start;
+ 	shmem_falloc.next  = start;
+ 	shmem_falloc.nr_falloced = 0;
+diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c
+index 4a78c4de9f20..42ef36a85e69 100644
+--- a/net/8021q/vlan_core.c
++++ b/net/8021q/vlan_core.c
+@@ -103,8 +103,11 @@ EXPORT_SYMBOL(vlan_dev_vlan_id);
+ 
+ static struct sk_buff *vlan_reorder_header(struct sk_buff *skb)
+ {
+-	if (skb_cow(skb, skb_headroom(skb)) < 0)
++	if (skb_cow(skb, skb_headroom(skb)) < 0) {
++		kfree_skb(skb);
+ 		return NULL;
++	}
++
+ 	memmove(skb->data - ETH_HLEN, skb->data - VLAN_ETH_HLEN, 2 * ETH_ALEN);
+ 	skb->mac_header += VLAN_HLEN;
+ 	return skb;
+diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c
+index 0018daccdea9..8799e171addf 100644
+--- a/net/appletalk/ddp.c
++++ b/net/appletalk/ddp.c
+@@ -1489,8 +1489,6 @@ static int atalk_rcv(struct sk_buff *skb, struct net_device *dev,
+ 		goto drop;
+ 
+ 	/* Queue packet (standard) */
+-	skb->sk = sock;
+-
+ 	if (sock_queue_rcv_skb(sock, skb) < 0)
+ 		goto drop;
+ 
+@@ -1644,7 +1642,6 @@ static int atalk_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr
+ 	if (!skb)
+ 		goto out;
+ 
+-	skb->sk = sk;
+ 	skb_reserve(skb, ddp_dl->header_length);
+ 	skb_reserve(skb, dev->hard_header_len);
+ 	skb->dev = dev;
+diff --git a/net/core/dst.c b/net/core/dst.c
+index df9cc810ec8e..c0e021871df8 100644
+--- a/net/core/dst.c
++++ b/net/core/dst.c
+@@ -267,6 +267,15 @@ again:
+ }
+ EXPORT_SYMBOL(dst_destroy);
+ 
++static void dst_destroy_rcu(struct rcu_head *head)
++{
++	struct dst_entry *dst = container_of(head, struct dst_entry, rcu_head);
++
++	dst = dst_destroy(dst);
++	if (dst)
++		__dst_free(dst);
++}
++
+ void dst_release(struct dst_entry *dst)
+ {
+ 	if (dst) {
+@@ -274,11 +283,8 @@ void dst_release(struct dst_entry *dst)
+ 
+ 		newrefcnt = atomic_dec_return(&dst->__refcnt);
+ 		WARN_ON(newrefcnt < 0);
+-		if (unlikely(dst->flags & DST_NOCACHE) && !newrefcnt) {
+-			dst = dst_destroy(dst);
+-			if (dst)
+-				__dst_free(dst);
+-		}
++		if (unlikely(dst->flags & DST_NOCACHE) && !newrefcnt)
++			call_rcu(&dst->rcu_head, dst_destroy_rcu);
+ 	}
+ }
+ EXPORT_SYMBOL(dst_release);
+diff --git a/net/dns_resolver/dns_query.c b/net/dns_resolver/dns_query.c
+index c32be292c7e3..2022b46ab38f 100644
+--- a/net/dns_resolver/dns_query.c
++++ b/net/dns_resolver/dns_query.c
+@@ -150,7 +150,9 @@ int dns_query(const char *type, const char *name, size_t namelen,
+ 	if (!*_result)
+ 		goto put;
+ 
+-	memcpy(*_result, upayload->data, len + 1);
++	memcpy(*_result, upayload->data, len);
++	(*_result)[len] = '\0';
++
+ 	if (_expiry)
+ 		*_expiry = rkey->expiry;
+ 
+diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
+index 76e10b47e053..ea78ef5ac352 100644
+--- a/net/ipv4/icmp.c
++++ b/net/ipv4/icmp.c
+@@ -697,8 +697,6 @@ static void icmp_unreach(struct sk_buff *skb)
+ 					       &iph->daddr);
+ 			} else {
+ 				info = ntohs(icmph->un.frag.mtu);
+-				if (!info)
+-					goto out;
+ 			}
+ 			break;
+ 		case ICMP_SR_FAILED:
+diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
+index 089b4af4fecc..38d63ca8a6b5 100644
+--- a/net/ipv4/igmp.c
++++ b/net/ipv4/igmp.c
+@@ -1874,6 +1874,10 @@ int ip_mc_leave_group(struct sock *sk, struct ip_mreqn *imr)
+ 
+ 	rtnl_lock();
+ 	in_dev = ip_mc_find_dev(net, imr);
++	if (!in_dev) {
++		ret = -ENODEV;
++		goto out;
++	}
+ 	ifindex = imr->imr_ifindex;
+ 	for (imlp = &inet->mc_list;
+ 	     (iml = rtnl_dereference(*imlp)) != NULL;
+@@ -1891,16 +1895,14 @@ int ip_mc_leave_group(struct sock *sk, struct ip_mreqn *imr)
+ 
+ 		*imlp = iml->next_rcu;
+ 
+-		if (in_dev)
+-			ip_mc_dec_group(in_dev, group);
++		ip_mc_dec_group(in_dev, group);
+ 		rtnl_unlock();
+ 		/* decrease mem now to avoid the memleak warning */
+ 		atomic_sub(sizeof(*iml), &sk->sk_omem_alloc);
+ 		kfree_rcu(iml, rcu);
+ 		return 0;
+ 	}
+-	if (!in_dev)
+-		ret = -ENODEV;
++out:
+ 	rtnl_unlock();
+ 	return ret;
+ }
+diff --git a/net/ipv4/ip_options.c b/net/ipv4/ip_options.c
+index ec7264514a82..089ed81d1878 100644
+--- a/net/ipv4/ip_options.c
++++ b/net/ipv4/ip_options.c
+@@ -288,6 +288,10 @@ int ip_options_compile(struct net *net,
+ 			optptr++;
+ 			continue;
+ 		}
++		if (unlikely(l < 2)) {
++			pp_ptr = optptr;
++			goto error;
++		}
+ 		optlen = optptr[1];
+ 		if (optlen<2 || optlen>l) {
+ 			pp_ptr = optptr;
+diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c
+index fa6573264c8a..5642374cb751 100644
+--- a/net/ipv4/ip_tunnel.c
++++ b/net/ipv4/ip_tunnel.c
+@@ -166,6 +166,7 @@ struct ip_tunnel *ip_tunnel_lookup(struct ip_tunnel_net *itn,
+ 
+ 	hlist_for_each_entry_rcu(t, head, hash_node) {
+ 		if (remote != t->parms.iph.daddr ||
++		    t->parms.iph.saddr != 0 ||
+ 		    !(t->dev->flags & IFF_UP))
+ 			continue;
+ 
+@@ -182,10 +183,11 @@ struct ip_tunnel *ip_tunnel_lookup(struct ip_tunnel_net *itn,
+ 	head = &itn->tunnels[hash];
+ 
+ 	hlist_for_each_entry_rcu(t, head, hash_node) {
+-		if ((local != t->parms.iph.saddr &&
+-		     (local != t->parms.iph.daddr ||
+-		      !ipv4_is_multicast(local))) ||
+-		    !(t->dev->flags & IFF_UP))
++		if ((local != t->parms.iph.saddr || t->parms.iph.daddr != 0) &&
++		    (local != t->parms.iph.daddr || !ipv4_is_multicast(local)))
++			continue;
++
++		if (!(t->dev->flags & IFF_UP))
+ 			continue;
+ 
+ 		if (!ip_tunnel_key_match(&t->parms, flags, key))
+@@ -202,6 +204,8 @@ struct ip_tunnel *ip_tunnel_lookup(struct ip_tunnel_net *itn,
+ 
+ 	hlist_for_each_entry_rcu(t, head, hash_node) {
+ 		if (t->parms.i_key != key ||
++		    t->parms.iph.saddr != 0 ||
++		    t->parms.iph.daddr != 0 ||
+ 		    !(t->dev->flags & IFF_UP))
+ 			continue;
+ 
+diff --git a/net/ipv4/route.c b/net/ipv4/route.c
+index 7256eef088b2..2b9887becb5c 100644
+--- a/net/ipv4/route.c
++++ b/net/ipv4/route.c
+@@ -985,20 +985,21 @@ void ipv4_sk_update_pmtu(struct sk_buff *skb, struct sock *sk, u32 mtu)
+ 	const struct iphdr *iph = (const struct iphdr *) skb->data;
+ 	struct flowi4 fl4;
+ 	struct rtable *rt;
+-	struct dst_entry *dst;
++	struct dst_entry *odst = NULL;
+ 	bool new = false;
+ 
+ 	bh_lock_sock(sk);
+-	rt = (struct rtable *) __sk_dst_get(sk);
++	odst = sk_dst_get(sk);
+ 
+-	if (sock_owned_by_user(sk) || !rt) {
++	if (sock_owned_by_user(sk) || !odst) {
+ 		__ipv4_sk_update_pmtu(skb, sk, mtu);
+ 		goto out;
+ 	}
+ 
+ 	__build_flow_key(&fl4, sk, iph, 0, 0, 0, 0, 0);
+ 
+-	if (!__sk_dst_check(sk, 0)) {
++	rt = (struct rtable *)odst;
++	if (odst->obsolete && odst->ops->check(odst, 0) == NULL) {
+ 		rt = ip_route_output_flow(sock_net(sk), &fl4, sk);
+ 		if (IS_ERR(rt))
+ 			goto out;
+@@ -1008,8 +1009,7 @@ void ipv4_sk_update_pmtu(struct sk_buff *skb, struct sock *sk, u32 mtu)
+ 
+ 	__ip_rt_update_pmtu((struct rtable *) rt->dst.path, &fl4, mtu);
+ 
+-	dst = dst_check(&rt->dst, 0);
+-	if (!dst) {
++	if (!dst_check(&rt->dst, 0)) {
+ 		if (new)
+ 			dst_release(&rt->dst);
+ 
+@@ -1021,10 +1021,11 @@ void ipv4_sk_update_pmtu(struct sk_buff *skb, struct sock *sk, u32 mtu)
+ 	}
+ 
+ 	if (new)
+-		__sk_dst_set(sk, &rt->dst);
++		sk_dst_set(sk, &rt->dst);
+ 
+ out:
+ 	bh_unlock_sock(sk);
++	dst_release(odst);
+ }
+ EXPORT_SYMBOL_GPL(ipv4_sk_update_pmtu);
+ 
+diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
+index 39bdb14b3214..5d4bd6ca3ab1 100644
+--- a/net/ipv4/tcp.c
++++ b/net/ipv4/tcp.c
+@@ -1065,7 +1065,7 @@ int tcp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
+ 	if (unlikely(tp->repair)) {
+ 		if (tp->repair_queue == TCP_RECV_QUEUE) {
+ 			copied = tcp_send_rcvq(sk, msg, size);
+-			goto out;
++			goto out_nopush;
+ 		}
+ 
+ 		err = -EINVAL;
+@@ -1238,6 +1238,7 @@ wait_for_memory:
+ out:
+ 	if (copied)
+ 		tcp_push(sk, flags, mss_now, tp->nonagle);
++out_nopush:
+ 	release_sock(sk);
+ 	return copied + copied_syn;
+ 
+diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
+index ba7d2b7ad9f9..ea7f52f3062d 100644
+--- a/net/ipv4/tcp_input.c
++++ b/net/ipv4/tcp_input.c
+@@ -1075,7 +1075,7 @@ static bool tcp_check_dsack(struct sock *sk, const struct sk_buff *ack_skb,
+ 	}
+ 
+ 	/* D-SACK for already forgotten data... Do dumb counting. */
+-	if (dup_sack && tp->undo_marker && tp->undo_retrans &&
++	if (dup_sack && tp->undo_marker && tp->undo_retrans > 0 &&
+ 	    !after(end_seq_0, prior_snd_una) &&
+ 	    after(end_seq_0, tp->undo_marker))
+ 		tp->undo_retrans--;
+@@ -1130,7 +1130,7 @@ static int tcp_match_skb_to_sack(struct sock *sk, struct sk_buff *skb,
+ 			unsigned int new_len = (pkt_len / mss) * mss;
+ 			if (!in_sack && new_len < pkt_len) {
+ 				new_len += mss;
+-				if (new_len > skb->len)
++				if (new_len >= skb->len)
+ 					return 0;
+ 			}
+ 			pkt_len = new_len;
+@@ -1154,7 +1154,7 @@ static u8 tcp_sacktag_one(struct sock *sk,
+ 
+ 	/* Account D-SACK for retransmitted packet. */
+ 	if (dup_sack && (sacked & TCPCB_RETRANS)) {
+-		if (tp->undo_marker && tp->undo_retrans &&
++		if (tp->undo_marker && tp->undo_retrans > 0 &&
+ 		    after(end_seq, tp->undo_marker))
+ 			tp->undo_retrans--;
+ 		if (sacked & TCPCB_SACKED_ACKED)
+@@ -1850,7 +1850,7 @@ static void tcp_clear_retrans_partial(struct tcp_sock *tp)
+ 	tp->lost_out = 0;
+ 
+ 	tp->undo_marker = 0;
+-	tp->undo_retrans = 0;
++	tp->undo_retrans = -1;
+ }
+ 
+ void tcp_clear_retrans(struct tcp_sock *tp)
+@@ -2700,7 +2700,7 @@ static void tcp_enter_recovery(struct sock *sk, bool ece_ack)
+ 
+ 	tp->prior_ssthresh = 0;
+ 	tp->undo_marker = tp->snd_una;
+-	tp->undo_retrans = tp->retrans_out;
++	tp->undo_retrans = tp->retrans_out ? : -1;
+ 
+ 	if (inet_csk(sk)->icsk_ca_state < TCP_CA_CWR) {
+ 		if (!ece_ack)
+diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
+index 4a4e8746d1b2..56e29f0e230e 100644
+--- a/net/ipv4/tcp_output.c
++++ b/net/ipv4/tcp_output.c
+@@ -2428,13 +2428,15 @@ int tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb)
+ 		if (!tp->retrans_stamp)
+ 			tp->retrans_stamp = TCP_SKB_CB(skb)->when;
+ 
+-		tp->undo_retrans += tcp_skb_pcount(skb);
+-
+ 		/* snd_nxt is stored to detect loss of retransmitted segment,
+ 		 * see tcp_input.c tcp_sacktag_write_queue().
+ 		 */
+ 		TCP_SKB_CB(skb)->ack_seq = tp->snd_nxt;
+ 	}
++
++	if (tp->undo_retrans < 0)
++		tp->undo_retrans = 0;
++	tp->undo_retrans += tcp_skb_pcount(skb);
+ 	return err;
+ }
+ 
+diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
+index be34adde692f..5ed562dfe743 100644
+--- a/net/netlink/af_netlink.c
++++ b/net/netlink/af_netlink.c
+@@ -500,7 +500,7 @@ static unsigned int netlink_poll(struct file *file, struct socket *sock,
+ 		while (nlk->cb != NULL && netlink_dump_space(nlk)) {
+ 			err = netlink_dump(sk);
+ 			if (err < 0) {
+-				sk->sk_err = err;
++				sk->sk_err = -err;
+ 				sk->sk_error_report(sk);
+ 				break;
+ 			}
+@@ -2272,7 +2272,7 @@ static int netlink_recvmsg(struct kiocb *kiocb, struct socket *sock,
+ 	if (nlk->cb && atomic_read(&sk->sk_rmem_alloc) <= sk->sk_rcvbuf / 2) {
+ 		ret = netlink_dump(sk);
+ 		if (ret) {
+-			sk->sk_err = ret;
++			sk->sk_err = -ret;
+ 			sk->sk_error_report(sk);
+ 		}
+ 	}
+diff --git a/net/sctp/sysctl.c b/net/sctp/sysctl.c
+index fe0ba7488bdf..29299dcabfbb 100644
+--- a/net/sctp/sysctl.c
++++ b/net/sctp/sysctl.c
+@@ -368,8 +368,7 @@ static int proc_sctp_do_auth(struct ctl_table *ctl, int write,
+ 		tbl.data = &net->sctp.auth_enable;
+ 
+ 	ret = proc_dointvec(&tbl, write, buffer, lenp, ppos);
+-
+-	if (write) {
++	if (write && ret == 0) {
+ 		struct sock *sk = net->sctp.ctl_sock;
+ 
+ 		net->sctp.auth_enable = new_value;
+diff --git a/net/sctp/ulpevent.c b/net/sctp/ulpevent.c
+index 10c018a5b9fe..ca907f2f5e5a 100644
+--- a/net/sctp/ulpevent.c
++++ b/net/sctp/ulpevent.c
+@@ -373,9 +373,10 @@ fail:
+  * specification [SCTP] and any extensions for a list of possible
+  * error formats.
+  */
+-struct sctp_ulpevent *sctp_ulpevent_make_remote_error(
+-	const struct sctp_association *asoc, struct sctp_chunk *chunk,
+-	__u16 flags, gfp_t gfp)
++struct sctp_ulpevent *
++sctp_ulpevent_make_remote_error(const struct sctp_association *asoc,
++				struct sctp_chunk *chunk, __u16 flags,
++				gfp_t gfp)
+ {
+ 	struct sctp_ulpevent *event;
+ 	struct sctp_remote_error *sre;
+@@ -394,8 +395,7 @@ struct sctp_ulpevent *sctp_ulpevent_make_remote_error(
+ 	/* Copy the skb to a new skb with room for us to prepend
+ 	 * notification with.
+ 	 */
+-	skb = skb_copy_expand(chunk->skb, sizeof(struct sctp_remote_error),
+-			      0, gfp);
++	skb = skb_copy_expand(chunk->skb, sizeof(*sre), 0, gfp);
+ 
+ 	/* Pull off the rest of the cause TLV from the chunk.  */
+ 	skb_pull(chunk->skb, elen);
+@@ -406,62 +406,21 @@ struct sctp_ulpevent *sctp_ulpevent_make_remote_error(
+ 	event = sctp_skb2event(skb);
+ 	sctp_ulpevent_init(event, MSG_NOTIFICATION, skb->truesize);
+ 
+-	sre = (struct sctp_remote_error *)
+-		skb_push(skb, sizeof(struct sctp_remote_error));
++	sre = (struct sctp_remote_error *) skb_push(skb, sizeof(*sre));
+ 
+ 	/* Trim the buffer to the right length.  */
+-	skb_trim(skb, sizeof(struct sctp_remote_error) + elen);
++	skb_trim(skb, sizeof(*sre) + elen);
+ 
+-	/* Socket Extensions for SCTP
+-	 * 5.3.1.3 SCTP_REMOTE_ERROR
+-	 *
+-	 * sre_type:
+-	 *   It should be SCTP_REMOTE_ERROR.
+-	 */
++	/* RFC6458, Section 6.1.3. SCTP_REMOTE_ERROR */
++	memset(sre, 0, sizeof(*sre));
+ 	sre->sre_type = SCTP_REMOTE_ERROR;
+-
+-	/*
+-	 * Socket Extensions for SCTP
+-	 * 5.3.1.3 SCTP_REMOTE_ERROR
+-	 *
+-	 * sre_flags: 16 bits (unsigned integer)
+-	 *   Currently unused.
+-	 */
+ 	sre->sre_flags = 0;
+-
+-	/* Socket Extensions for SCTP
+-	 * 5.3.1.3 SCTP_REMOTE_ERROR
+-	 *
+-	 * sre_length: sizeof (__u32)
+-	 *
+-	 * This field is the total length of the notification data,
+-	 * including the notification header.
+-	 */
+ 	sre->sre_length = skb->len;
+-
+-	/* Socket Extensions for SCTP
+-	 * 5.3.1.3 SCTP_REMOTE_ERROR
+-	 *
+-	 * sre_error: 16 bits (unsigned integer)
+-	 * This value represents one of the Operational Error causes defined in
+-	 * the SCTP specification, in network byte order.
+-	 */
+ 	sre->sre_error = cause;
+-
+-	/* Socket Extensions for SCTP
+-	 * 5.3.1.3 SCTP_REMOTE_ERROR
+-	 *
+-	 * sre_assoc_id: sizeof (sctp_assoc_t)
+-	 *
+-	 * The association id field, holds the identifier for the association.
+-	 * All notifications for a given association have the same association
+-	 * identifier.  For TCP style socket, this field is ignored.
+-	 */
+ 	sctp_ulpevent_set_owner(event, asoc);
+ 	sre->sre_assoc_id = sctp_assoc2id(asoc);
+ 
+ 	return event;
+-
+ fail:
+ 	return NULL;
+ }
+@@ -906,7 +865,9 @@ __u16 sctp_ulpevent_get_notification_type(const struct sctp_ulpevent *event)
+ 	return notification->sn_header.sn_type;
+ }
+ 
+-/* Copy out the sndrcvinfo into a msghdr.  */
++/* RFC6458, Section 5.3.2. SCTP Header Information Structure
++ * (SCTP_SNDRCV, DEPRECATED)
++ */
+ void sctp_ulpevent_read_sndrcvinfo(const struct sctp_ulpevent *event,
+ 				   struct msghdr *msghdr)
+ {
+@@ -915,74 +876,21 @@ void sctp_ulpevent_read_sndrcvinfo(const struct sctp_ulpevent *event,
+ 	if (sctp_ulpevent_is_notification(event))
+ 		return;
+ 
+-	/* Sockets API Extensions for SCTP
+-	 * Section 5.2.2 SCTP Header Information Structure (SCTP_SNDRCV)
+-	 *
+-	 * sinfo_stream: 16 bits (unsigned integer)
+-	 *
+-	 * For recvmsg() the SCTP stack places the message's stream number in
+-	 * this value.
+-	*/
++	memset(&sinfo, 0, sizeof(sinfo));
+ 	sinfo.sinfo_stream = event->stream;
+-	/* sinfo_ssn: 16 bits (unsigned integer)
+-	 *
+-	 * For recvmsg() this value contains the stream sequence number that
+-	 * the remote endpoint placed in the DATA chunk.  For fragmented
+-	 * messages this is the same number for all deliveries of the message
+-	 * (if more than one recvmsg() is needed to read the message).
+-	 */
+ 	sinfo.sinfo_ssn = event->ssn;
+-	/* sinfo_ppid: 32 bits (unsigned integer)
+-	 *
+-	 * In recvmsg() this value is
+-	 * the same information that was passed by the upper layer in the peer
+-	 * application.  Please note that byte order issues are NOT accounted
+-	 * for and this information is passed opaquely by the SCTP stack from
+-	 * one end to the other.
+-	 */
+ 	sinfo.sinfo_ppid = event->ppid;
+-	/* sinfo_flags: 16 bits (unsigned integer)
+-	 *
+-	 * This field may contain any of the following flags and is composed of
+-	 * a bitwise OR of these values.
+-	 *
+-	 * recvmsg() flags:
+-	 *
+-	 * SCTP_UNORDERED - This flag is present when the message was sent
+-	 *                 non-ordered.
+-	 */
+ 	sinfo.sinfo_flags = event->flags;
+-	/* sinfo_tsn: 32 bit (unsigned integer)
+-	 *
+-	 * For the receiving side, this field holds a TSN that was
+-	 * assigned to one of the SCTP Data Chunks.
+-	 */
+ 	sinfo.sinfo_tsn = event->tsn;
+-	/* sinfo_cumtsn: 32 bit (unsigned integer)
+-	 *
+-	 * This field will hold the current cumulative TSN as
+-	 * known by the underlying SCTP layer.  Note this field is
+-	 * ignored when sending and only valid for a receive
+-	 * operation when sinfo_flags are set to SCTP_UNORDERED.
+-	 */
+ 	sinfo.sinfo_cumtsn = event->cumtsn;
+-	/* sinfo_assoc_id: sizeof (sctp_assoc_t)
+-	 *
+-	 * The association handle field, sinfo_assoc_id, holds the identifier
+-	 * for the association announced in the COMMUNICATION_UP notification.
+-	 * All notifications for a given association have the same identifier.
+-	 * Ignored for one-to-one style sockets.
+-	 */
+ 	sinfo.sinfo_assoc_id = sctp_assoc2id(event->asoc);
+-
+-	/* context value that is set via SCTP_CONTEXT socket option. */
++	/* Context value that is set via SCTP_CONTEXT socket option. */
+ 	sinfo.sinfo_context = event->asoc->default_rcv_context;
+-
+ 	/* These fields are not used while receiving. */
+ 	sinfo.sinfo_timetolive = 0;
+ 
+ 	put_cmsg(msghdr, IPPROTO_SCTP, SCTP_SNDRCV,
+-		 sizeof(struct sctp_sndrcvinfo), (void *)&sinfo);
++		 sizeof(sinfo), &sinfo);
+ }
+ 
+ /* Do accounting for bytes received and hold a reference to the association
+diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c
+index e5f3da507823..bf2755419ec6 100644
+--- a/net/tipc/bcast.c
++++ b/net/tipc/bcast.c
+@@ -531,6 +531,7 @@ receive:
+ 
+ 		buf = node->bclink.deferred_head;
+ 		node->bclink.deferred_head = buf->next;
++		buf->next = NULL;
+ 		node->bclink.deferred_size--;
+ 		goto receive;
+ 	}