[gentoo-commits] proj/linux-patches:4.9 commit in: /

[Alice Ferrazzi]

commit:     86b7ffe045ff19b2b5b7e86f152a158e967c33d7
Author:     Alice Ferrazzi <alicef <AT> gentoo <DOT> org>
AuthorDate: Sat Jan 30 13:17:18 2021 +0000
Commit:     Alice Ferrazzi <alicef <AT> gentoo <DOT> org>
CommitDate: Sat Jan 30 13:17:36 2021 +0000
URL:        https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=86b7ffe0

Linux patch 4.9.254

Signed-off-by: Alice Ferrazzi <alicef <AT> gentoo.org>

 0000_README              |   4 +
 1253_linux-4.9.254.patch | 571 +++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 575 insertions(+)

diff --git a/0000_README b/0000_README
index 2b0c6da..d62c153 100644
--- a/0000_README
+++ b/0000_README
@@ -1055,6 +1055,10 @@ Patch:  1252_linux-4.9.253.patch
 From:   http://www.kernel.org
 Desc:   Linux 4.9.253
 
+Patch:  1253_linux-4.9.254.patch
+From:   http://www.kernel.org
+Desc:   Linux 4.9.254
+
 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/1253_linux-4.9.254.patch b/1253_linux-4.9.254.patch
new file mode 100644
index 0000000..b812f33
--- /dev/null
+++ b/1253_linux-4.9.254.patch
@@ -0,0 +1,571 @@
+diff --git a/Makefile b/Makefile
+index 62a07bdcfacb7..ea9ea119460d4 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,6 +1,6 @@
+ VERSION = 4
+ PATCHLEVEL = 9
+-SUBLEVEL = 253
++SUBLEVEL = 254
+ EXTRAVERSION =
+ NAME = Roaring Lionus
+ 
+diff --git a/arch/sh/drivers/dma/Kconfig b/arch/sh/drivers/dma/Kconfig
+index 78bc97b1d0270..ac834e9e0e0a4 100644
+--- a/arch/sh/drivers/dma/Kconfig
++++ b/arch/sh/drivers/dma/Kconfig
+@@ -62,8 +62,7 @@ config PVR2_DMA
+ 
+ config G2_DMA
+ 	tristate "G2 Bus DMA support"
+-	depends on SH_DREAMCAST
+-	select SH_DMA_API
++	depends on SH_DREAMCAST && SH_DMA_API
+ 	help
+ 	  This enables support for the DMA controller for the Dreamcast's
+ 	  G2 bus. Drivers that want this will generally enable this on
+diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
+index 89b163351e642..7be7acd6a5409 100644
+--- a/arch/x86/boot/compressed/Makefile
++++ b/arch/x86/boot/compressed/Makefile
+@@ -35,6 +35,8 @@ KBUILD_CFLAGS += -mno-mmx -mno-sse
+ KBUILD_CFLAGS += $(call cc-option,-ffreestanding)
+ KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
+ KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
++# Disable relocation relaxation in case the link is not PIE.
++KBUILD_CFLAGS += $(call as-option,-Wa$(comma)-mrelax-relocations=no)
+ 
+ KBUILD_AFLAGS  := $(KBUILD_CFLAGS) -D__ASSEMBLY__
+ GCOV_PROFILE := n
+diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
+index f49e2b7880ac2..5aa4a01f698fe 100644
+--- a/drivers/acpi/scan.c
++++ b/drivers/acpi/scan.c
+@@ -585,6 +585,8 @@ static int acpi_get_device_data(acpi_handle handle, struct acpi_device **device,
+ 	if (!device)
+ 		return -EINVAL;
+ 
++	*device = NULL;
++
+ 	status = acpi_get_data_full(handle, acpi_scan_drop_device,
+ 				    (void **)device, callback);
+ 	if (ACPI_FAILURE(status) || !*device) {
+diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadow.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadow.c
+index 7deb81b6dbac6..4b571cc6bc70f 100644
+--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadow.c
++++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadow.c
+@@ -75,7 +75,7 @@ shadow_image(struct nvkm_bios *bios, int idx, u32 offset, struct shadow *mthd)
+ 	nvkm_debug(subdev, "%08x: type %02x, %d bytes\n",
+ 		   image.base, image.type, image.size);
+ 
+-	if (!shadow_fetch(bios, mthd, image.size)) {
++	if (!shadow_fetch(bios, mthd, image.base + image.size)) {
+ 		nvkm_debug(subdev, "%08x: fetch failed\n", image.base);
+ 		return 0;
+ 	}
+diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgm200.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgm200.c
+index a5783f4d972e3..c49795e779be4 100644
+--- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgm200.c
++++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgm200.c
+@@ -33,7 +33,7 @@ static void
+ gm200_i2c_aux_fini(struct gm200_i2c_aux *aux)
+ {
+ 	struct nvkm_device *device = aux->base.pad->i2c->subdev.device;
+-	nvkm_mask(device, 0x00d954 + (aux->ch * 0x50), 0x00310000, 0x00000000);
++	nvkm_mask(device, 0x00d954 + (aux->ch * 0x50), 0x00710000, 0x00000000);
+ }
+ 
+ static int
+@@ -54,10 +54,10 @@ gm200_i2c_aux_init(struct gm200_i2c_aux *aux)
+ 			AUX_ERR(&aux->base, "begin idle timeout %08x", ctrl);
+ 			return -EBUSY;
+ 		}
+-	} while (ctrl & 0x03010000);
++	} while (ctrl & 0x07010000);
+ 
+ 	/* set some magic, and wait up to 1ms for it to appear */
+-	nvkm_mask(device, 0x00d954 + (aux->ch * 0x50), 0x00300000, ureq);
++	nvkm_mask(device, 0x00d954 + (aux->ch * 0x50), 0x00700000, ureq);
+ 	timeout = 1000;
+ 	do {
+ 		ctrl = nvkm_rd32(device, 0x00d954 + (aux->ch * 0x50));
+@@ -67,7 +67,7 @@ gm200_i2c_aux_init(struct gm200_i2c_aux *aux)
+ 			gm200_i2c_aux_fini(aux);
+ 			return -EBUSY;
+ 		}
+-	} while ((ctrl & 0x03000000) != urep);
++	} while ((ctrl & 0x07000000) != urep);
+ 
+ 	return 0;
+ }
+diff --git a/drivers/hwtracing/stm/heartbeat.c b/drivers/hwtracing/stm/heartbeat.c
+index 3da7b673aab25..3957ce678265d 100644
+--- a/drivers/hwtracing/stm/heartbeat.c
++++ b/drivers/hwtracing/stm/heartbeat.c
+@@ -72,7 +72,7 @@ static void stm_heartbeat_unlink(struct stm_source_data *data)
+ 
+ static int stm_heartbeat_init(void)
+ {
+-	int i, ret = -ENOMEM;
++	int i, ret;
+ 
+ 	if (nr_devs < 0 || nr_devs > STM_HEARTBEAT_MAX)
+ 		return -EINVAL;
+@@ -80,8 +80,10 @@ static int stm_heartbeat_init(void)
+ 	for (i = 0; i < nr_devs; i++) {
+ 		stm_heartbeat[i].data.name =
+ 			kasprintf(GFP_KERNEL, "heartbeat.%d", i);
+-		if (!stm_heartbeat[i].data.name)
++		if (!stm_heartbeat[i].data.name) {
++			ret = -ENOMEM;
+ 			goto fail_unregister;
++		}
+ 
+ 		stm_heartbeat[i].data.nr_chans	= 1;
+ 		stm_heartbeat[i].data.link		= stm_heartbeat_link;
+diff --git a/drivers/i2c/busses/i2c-octeon-core.c b/drivers/i2c/busses/i2c-octeon-core.c
+index 5e63b17f935d5..e5ad3f9cd372f 100644
+--- a/drivers/i2c/busses/i2c-octeon-core.c
++++ b/drivers/i2c/busses/i2c-octeon-core.c
+@@ -383,7 +383,7 @@ static int octeon_i2c_read(struct octeon_i2c *i2c, int target,
+ 
+ 		data[i] = octeon_i2c_data_read(i2c);
+ 		if (recv_len && i == 0) {
+-			if (data[i] > I2C_SMBUS_BLOCK_MAX + 1)
++			if (data[i] > I2C_SMBUS_BLOCK_MAX)
+ 				return -EPROTO;
+ 			length += data[i];
+ 		}
+diff --git a/drivers/iio/dac/ad5504.c b/drivers/iio/dac/ad5504.c
+index 788b3d6fd1cc9..b15a02f502df9 100644
+--- a/drivers/iio/dac/ad5504.c
++++ b/drivers/iio/dac/ad5504.c
+@@ -189,9 +189,9 @@ static ssize_t ad5504_write_dac_powerdown(struct iio_dev *indio_dev,
+ 		return ret;
+ 
+ 	if (pwr_down)
+-		st->pwr_down_mask |= (1 << chan->channel);
+-	else
+ 		st->pwr_down_mask &= ~(1 << chan->channel);
++	else
++		st->pwr_down_mask |= (1 << chan->channel);
+ 
+ 	ret = ad5504_spi_write(st, AD5504_ADDR_CTRL,
+ 				AD5504_DAC_PWRDWN_MODE(st->pwr_down_mode) |
+diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
+index 62e3dc19b6099..5d120c3cee57d 100644
+--- a/drivers/md/dm-table.c
++++ b/drivers/md/dm-table.c
+@@ -396,14 +396,23 @@ int dm_get_device(struct dm_target *ti, const char *path, fmode_t mode,
+ {
+ 	int r;
+ 	dev_t dev;
++	unsigned int major, minor;
++	char dummy;
+ 	struct dm_dev_internal *dd;
+ 	struct dm_table *t = ti->table;
+ 
+ 	BUG_ON(!t);
+ 
+-	dev = dm_get_dev_t(path);
+-	if (!dev)
+-		return -ENODEV;
++	if (sscanf(path, "%u:%u%c", &major, &minor, &dummy) == 2) {
++		/* Extract the major/minor numbers */
++		dev = MKDEV(major, minor);
++		if (MAJOR(dev) != major || MINOR(dev) != minor)
++			return -EOVERFLOW;
++	} else {
++		dev = dm_get_dev_t(path);
++		if (!dev)
++			return -ENODEV;
++	}
+ 
+ 	dd = find_device(&t->devices, dev);
+ 	if (!dd) {
+diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c
+index c7508d9a4c6fb..164078609f98e 100644
+--- a/drivers/net/can/dev.c
++++ b/drivers/net/can/dev.c
+@@ -555,11 +555,11 @@ static void can_restart(struct net_device *dev)
+ 	}
+ 	cf->can_id |= CAN_ERR_RESTARTED;
+ 
+-	netif_rx_ni(skb);
+-
+ 	stats->rx_packets++;
+ 	stats->rx_bytes += cf->can_dlc;
+ 
++	netif_rx_ni(skb);
++
+ restart:
+ 	netdev_dbg(dev, "restarted\n");
+ 	priv->can_stats.restarts++;
+diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c
+index c387be5c926b7..5ec0042bc3840 100644
+--- a/drivers/net/dsa/b53/b53_common.c
++++ b/drivers/net/dsa/b53/b53_common.c
+@@ -946,7 +946,7 @@ static int b53_vlan_prepare(struct dsa_switch *ds, int port,
+ 	if ((is5325(dev) || is5365(dev)) && vlan->vid_begin == 0)
+ 		return -EOPNOTSUPP;
+ 
+-	if (vlan->vid_end > dev->num_vlans)
++	if (vlan->vid_end >= dev->num_vlans)
+ 		return -ERANGE;
+ 
+ 	b53_enable_vlan(dev, true);
+diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
+index 6f8d4810ce979..7458b1a70e5d6 100644
+--- a/drivers/net/ethernet/renesas/sh_eth.c
++++ b/drivers/net/ethernet/renesas/sh_eth.c
+@@ -2411,10 +2411,10 @@ static int sh_eth_close(struct net_device *ndev)
+ 	/* Free all the skbuffs in the Rx queue and the DMA buffer. */
+ 	sh_eth_ring_free(ndev);
+ 
+-	pm_runtime_put_sync(&mdp->pdev->dev);
+-
+ 	mdp->is_opened = 0;
+ 
++	pm_runtime_put(&mdp->pdev->dev);
++
+ 	return 0;
+ }
+ 
+diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
+index ad80e4223c2d3..a767d942bfca5 100644
+--- a/drivers/scsi/ufs/ufshcd.c
++++ b/drivers/scsi/ufs/ufshcd.c
+@@ -4552,19 +4552,16 @@ static int ufshcd_eh_device_reset_handler(struct scsi_cmnd *cmd)
+ {
+ 	struct Scsi_Host *host;
+ 	struct ufs_hba *hba;
+-	unsigned int tag;
+ 	u32 pos;
+ 	int err;
+-	u8 resp = 0xF;
+-	struct ufshcd_lrb *lrbp;
++	u8 resp = 0xF, lun;
+ 	unsigned long flags;
+ 
+ 	host = cmd->device->host;
+ 	hba = shost_priv(host);
+-	tag = cmd->request->tag;
+ 
+-	lrbp = &hba->lrb[tag];
+-	err = ufshcd_issue_tm_cmd(hba, lrbp->lun, 0, UFS_LOGICAL_RESET, &resp);
++	lun = ufshcd_scsi_to_upiu_lun(cmd->device->lun);
++	err = ufshcd_issue_tm_cmd(hba, lun, 0, UFS_LOGICAL_RESET, &resp);
+ 	if (err || resp != UPIU_TASK_MANAGEMENT_FUNC_COMPL) {
+ 		if (!err)
+ 			err = resp;
+@@ -4573,7 +4570,7 @@ static int ufshcd_eh_device_reset_handler(struct scsi_cmnd *cmd)
+ 
+ 	/* clear the commands that were pending for corresponding LUN */
+ 	for_each_set_bit(pos, &hba->outstanding_reqs, hba->nutrs) {
+-		if (hba->lrb[pos].lun == lrbp->lun) {
++		if (hba->lrb[pos].lun == lun) {
+ 			err = ufshcd_clear_cmd(hba, pos);
+ 			if (err)
+ 				break;
+diff --git a/drivers/usb/gadget/udc/bdc/Kconfig b/drivers/usb/gadget/udc/bdc/Kconfig
+index 0d7b8c9f72fda..778df4badf888 100644
+--- a/drivers/usb/gadget/udc/bdc/Kconfig
++++ b/drivers/usb/gadget/udc/bdc/Kconfig
+@@ -14,7 +14,7 @@ if USB_BDC_UDC
+ comment "Platform Support"
+ config	USB_BDC_PCI
+ 	tristate "BDC support for PCIe based platforms"
+-	depends on PCI
++	depends on PCI && BROKEN
+ 	default USB_BDC_UDC
+ 	help
+ 		Enable support for platforms which have BDC connected through PCIe, such as Lego3 FPGA platform.
+diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c
+index 99c7cf4822c33..34ad964d54d11 100644
+--- a/drivers/usb/gadget/udc/core.c
++++ b/drivers/usb/gadget/udc/core.c
+@@ -1424,10 +1424,13 @@ static ssize_t usb_udc_softconn_store(struct device *dev,
+ 		struct device_attribute *attr, const char *buf, size_t n)
+ {
+ 	struct usb_udc		*udc = container_of(dev, struct usb_udc, dev);
++	ssize_t			ret;
+ 
++	mutex_lock(&udc_lock);
+ 	if (!udc->driver) {
+ 		dev_err(dev, "soft-connect without a gadget driver\n");
+-		return -EOPNOTSUPP;
++		ret = -EOPNOTSUPP;
++		goto out;
+ 	}
+ 
+ 	if (sysfs_streq(buf, "connect")) {
+@@ -1439,10 +1442,14 @@ static ssize_t usb_udc_softconn_store(struct device *dev,
+ 		usb_gadget_udc_stop(udc);
+ 	} else {
+ 		dev_err(dev, "unsupported command '%s'\n", buf);
+-		return -EINVAL;
++		ret = -EINVAL;
++		goto out;
+ 	}
+ 
+-	return n;
++	ret = n;
++out:
++	mutex_unlock(&udc_lock);
++	return ret;
+ }
+ static DEVICE_ATTR(soft_connect, S_IWUSR, NULL, usb_udc_softconn_store);
+ 
+diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
+index b3d6cc1a8021b..52c4176afae96 100644
+--- a/drivers/usb/host/ehci-hcd.c
++++ b/drivers/usb/host/ehci-hcd.c
+@@ -587,6 +587,7 @@ static int ehci_run (struct usb_hcd *hcd)
+ 	struct ehci_hcd		*ehci = hcd_to_ehci (hcd);
+ 	u32			temp;
+ 	u32			hcc_params;
++	int			rc;
+ 
+ 	hcd->uses_new_polling = 1;
+ 
+@@ -642,9 +643,20 @@ static int ehci_run (struct usb_hcd *hcd)
+ 	down_write(&ehci_cf_port_reset_rwsem);
+ 	ehci->rh_state = EHCI_RH_RUNNING;
+ 	ehci_writel(ehci, FLAG_CF, &ehci->regs->configured_flag);
++
++	/* Wait until HC become operational */
+ 	ehci_readl(ehci, &ehci->regs->command);	/* unblock posted writes */
+ 	msleep(5);
++	rc = ehci_handshake(ehci, &ehci->regs->status, STS_HALT, 0, 100 * 1000);
++
+ 	up_write(&ehci_cf_port_reset_rwsem);
++
++	if (rc) {
++		ehci_err(ehci, "USB %x.%x, controller refused to start: %d\n",
++			 ((ehci->sbrn & 0xf0)>>4), (ehci->sbrn & 0x0f), rc);
++		return rc;
++	}
++
+ 	ehci->last_periodic_enable = ktime_get_real();
+ 
+ 	temp = HC_VERSION(ehci, ehci_readl(ehci, &ehci->caps->hc_capbase));
+diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
+index 3a3926ff7b857..643c427bb2773 100644
+--- a/drivers/usb/host/ehci-hub.c
++++ b/drivers/usb/host/ehci-hub.c
+@@ -350,6 +350,9 @@ static int ehci_bus_suspend (struct usb_hcd *hcd)
+ 
+ 	unlink_empty_async_suspended(ehci);
+ 
++	/* Some Synopsys controllers mistakenly leave IAA turned on */
++	ehci_writel(ehci, STS_IAA, &ehci->regs->status);
++
+ 	/* Any IAA cycle that started before the suspend is now invalid */
+ 	end_iaa_cycle(ehci);
+ 	ehci_handle_start_intr_unlinks(ehci);
+diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
+index 1468dca77facf..6e1d65fda97e0 100644
+--- a/drivers/usb/host/xhci-ring.c
++++ b/drivers/usb/host/xhci-ring.c
+@@ -2851,6 +2851,8 @@ static void queue_trb(struct xhci_hcd *xhci, struct xhci_ring *ring,
+ 	trb->field[0] = cpu_to_le32(field1);
+ 	trb->field[1] = cpu_to_le32(field2);
+ 	trb->field[2] = cpu_to_le32(field3);
++	/* make sure TRB is fully written before giving it to the controller */
++	wmb();
+ 	trb->field[3] = cpu_to_le32(field4);
+ 	inc_enq(xhci, ring, more_trbs_coming);
+ }
+diff --git a/drivers/usb/host/xhci-tegra.c b/drivers/usb/host/xhci-tegra.c
+index 97d57a94776ac..040c43097d558 100644
+--- a/drivers/usb/host/xhci-tegra.c
++++ b/drivers/usb/host/xhci-tegra.c
+@@ -579,6 +579,13 @@ static void tegra_xusb_mbox_handle(struct tegra_xusb *tegra,
+ 								     enable);
+ 			if (err < 0)
+ 				break;
++
++			/*
++			 * wait 500us for LFPS detector to be disabled before
++			 * sending ACK
++			 */
++			if (!enable)
++				usleep_range(500, 1000);
+ 		}
+ 
+ 		if (err < 0) {
+diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
+index 61650c1830d45..d830eddacdc60 100644
+--- a/include/linux/compiler-gcc.h
++++ b/include/linux/compiler-gcc.h
+@@ -149,6 +149,12 @@
+ 
+ #if GCC_VERSION < 30200
+ # error Sorry, your compiler is too old - please upgrade it.
++#elif defined(CONFIG_ARM64) && GCC_VERSION < 50100 && !defined(__clang__)
++/*
++ * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63293
++ * https://lore.kernel.org/r/20210107111841.GN1551@××××××××××××××××××.uk
++ */
++# error Sorry, your version of GCC is too old - please use 5.1 or newer.
+ #endif
+ 
+ #if GCC_VERSION < 30300
+diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
+index 335c00209f746..78bdfbefd996c 100644
+--- a/kernel/bpf/verifier.c
++++ b/kernel/bpf/verifier.c
+@@ -1732,12 +1732,11 @@ static void adjust_reg_min_max_vals(struct bpf_verifier_env *env,
+ 		 * unsigned shift, so make the appropriate casts.
+ 		 */
+ 		if (min_val < 0 || dst_reg->min_value < 0)
+-			dst_reg->min_value = BPF_REGISTER_MIN_RANGE;
++			reset_reg_range_values(regs, insn->dst_reg);
+ 		else
+-			dst_reg->min_value =
+-				(u64)(dst_reg->min_value) >> min_val;
++			dst_reg->min_value = (u64)(dst_reg->min_value) >> max_val;
+ 		if (dst_reg->max_value != BPF_REGISTER_MAX_RANGE)
+-			dst_reg->max_value >>= max_val;
++			dst_reg->max_value >>= min_val;
+ 		break;
+ 	default:
+ 		reset_reg_range_values(regs, insn->dst_reg);
+diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
+index 55f60d2edc3fb..4ec8bf634f89f 100644
+--- a/kernel/trace/ring_buffer.c
++++ b/kernel/trace/ring_buffer.c
+@@ -4289,6 +4289,8 @@ void ring_buffer_reset_cpu(struct ring_buffer *buffer, int cpu)
+ 
+ 	if (!cpumask_test_cpu(cpu, buffer->cpumask))
+ 		return;
++	/* prevent another thread from changing buffer sizes */
++	mutex_lock(&buffer->mutex);
+ 
+ 	atomic_inc(&buffer->resize_disabled);
+ 	atomic_inc(&cpu_buffer->record_disabled);
+@@ -4312,6 +4314,8 @@ void ring_buffer_reset_cpu(struct ring_buffer *buffer, int cpu)
+ 
+ 	atomic_dec(&cpu_buffer->record_disabled);
+ 	atomic_dec(&buffer->resize_disabled);
++
++	mutex_unlock(&buffer->mutex);
+ }
+ EXPORT_SYMBOL_GPL(ring_buffer_reset_cpu);
+ 
+diff --git a/mm/slub.c b/mm/slub.c
+index 7ccfc043c28e2..5c48a8a0524a2 100644
+--- a/mm/slub.c
++++ b/mm/slub.c
+@@ -5648,10 +5648,8 @@ static int sysfs_slab_add(struct kmem_cache *s)
+ 
+ 	s->kobj.kset = cache_kset(s);
+ 	err = kobject_init_and_add(&s->kobj, &slab_ktype, NULL, "%s", name);
+-	if (err) {
+-		kobject_put(&s->kobj);
++	if (err)
+ 		goto out;
+-	}
+ 
+ 	err = sysfs_create_group(&s->kobj, &slab_attr_group);
+ 	if (err)
+diff --git a/net/core/skbuff.c b/net/core/skbuff.c
+index 5582a4ed7c2fb..79034fb861b52 100644
+--- a/net/core/skbuff.c
++++ b/net/core/skbuff.c
+@@ -428,7 +428,11 @@ struct sk_buff *__netdev_alloc_skb(struct net_device *dev, unsigned int len,
+ 
+ 	len += NET_SKB_PAD;
+ 
+-	if ((len > SKB_WITH_OVERHEAD(PAGE_SIZE)) ||
++	/* If requested length is either too small or too big,
++	 * we use kmalloc() for skb->head allocation.
++	 */
++	if (len <= SKB_WITH_OVERHEAD(1024) ||
++	    len > SKB_WITH_OVERHEAD(PAGE_SIZE) ||
+ 	    (gfp_mask & (__GFP_DIRECT_RECLAIM | GFP_DMA))) {
+ 		skb = __alloc_skb(len, gfp_mask, SKB_ALLOC_RX, NUMA_NO_NODE);
+ 		if (!skb)
+diff --git a/net/ipv4/netfilter/ipt_rpfilter.c b/net/ipv4/netfilter/ipt_rpfilter.c
+index 78cc64eddfc18..32a363465e0a4 100644
+--- a/net/ipv4/netfilter/ipt_rpfilter.c
++++ b/net/ipv4/netfilter/ipt_rpfilter.c
+@@ -92,7 +92,7 @@ static bool rpfilter_mt(const struct sk_buff *skb, struct xt_action_param *par)
+ 	flow.saddr = rpfilter_get_saddr(iph->daddr);
+ 	flow.flowi4_oif = 0;
+ 	flow.flowi4_mark = info->flags & XT_RPFILTER_VALID_MARK ? skb->mark : 0;
+-	flow.flowi4_tos = RT_TOS(iph->tos);
++	flow.flowi4_tos = iph->tos & IPTOS_RT_MASK;
+ 	flow.flowi4_scope = RT_SCOPE_UNIVERSE;
+ 
+ 	return rpfilter_lookup_reverse(par->net, &flow, par->in, info->flags) ^ invert;
+diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
+index a4c00242a90b3..6119ab33a56ea 100644
+--- a/net/ipv6/addrconf.c
++++ b/net/ipv6/addrconf.c
+@@ -2285,6 +2285,7 @@ static void addrconf_add_mroute(struct net_device *dev)
+ 		.fc_dst_len = 8,
+ 		.fc_flags = RTF_UP,
+ 		.fc_nlinfo.nl_net = dev_net(dev),
++		.fc_protocol = RTPROT_KERNEL,
+ 	};
+ 
+ 	ipv6_addr_set(&cfg.fc_dst, htonl(0xFF000000), 0, 0, 0);
+diff --git a/net/sched/cls_tcindex.c b/net/sched/cls_tcindex.c
+index ab66e2b38e662..70ee78d8f8fb8 100644
+--- a/net/sched/cls_tcindex.c
++++ b/net/sched/cls_tcindex.c
+@@ -307,9 +307,13 @@ tcindex_set_parms(struct net *net, struct tcf_proto *tp, unsigned long base,
+ 	if (tb[TCA_TCINDEX_MASK])
+ 		cp->mask = nla_get_u16(tb[TCA_TCINDEX_MASK]);
+ 
+-	if (tb[TCA_TCINDEX_SHIFT])
++	if (tb[TCA_TCINDEX_SHIFT]) {
+ 		cp->shift = nla_get_u32(tb[TCA_TCINDEX_SHIFT]);
+-
++		if (cp->shift > 16) {
++			err = -EINVAL;
++			goto errout;
++		}
++	}
+ 	if (!cp->hash) {
+ 		/* Hash not specified, use perfect hash if the upper limit
+ 		 * of the hashing index is below the threshold.
+diff --git a/sound/core/seq/oss/seq_oss_synth.c b/sound/core/seq/oss/seq_oss_synth.c
+index c939459172353..247b68790a522 100644
+--- a/sound/core/seq/oss/seq_oss_synth.c
++++ b/sound/core/seq/oss/seq_oss_synth.c
+@@ -624,7 +624,8 @@ snd_seq_oss_synth_make_info(struct seq_oss_devinfo *dp, int dev, struct synth_in
+ 
+ 	if (info->is_midi) {
+ 		struct midi_info minf;
+-		snd_seq_oss_midi_make_info(dp, info->midi_mapped, &minf);
++		if (snd_seq_oss_midi_make_info(dp, info->midi_mapped, &minf))
++			return -ENXIO;
+ 		inf->synth_type = SYNTH_TYPE_MIDI;
+ 		inf->synth_subtype = 0;
+ 		inf->nr_voices = 16;
+diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c
+index fc30d1e8aa76a..9dd104c308e1d 100644
+--- a/sound/pci/hda/patch_via.c
++++ b/sound/pci/hda/patch_via.c
+@@ -135,6 +135,7 @@ static struct via_spec *via_new_spec(struct hda_codec *codec)
+ 		spec->codec_type = VT1708S;
+ 	spec->gen.indep_hp = 1;
+ 	spec->gen.keep_eapd_on = 1;
++	spec->gen.dac_min_mute = 1;
+ 	spec->gen.pcm_playback_hook = via_playback_pcm_hook;
+ 	spec->gen.add_stereo_mix_input = HDA_HINT_STEREO_MIX_AUTO;
+ 	codec->power_save_node = 1;
+diff --git a/sound/soc/intel/boards/haswell.c b/sound/soc/intel/boards/haswell.c
+index 11d0cc2b0e390..060da95770416 100644
+--- a/sound/soc/intel/boards/haswell.c
++++ b/sound/soc/intel/boards/haswell.c
+@@ -197,6 +197,7 @@ static struct platform_driver haswell_audio = {
+ 	.probe = haswell_audio_probe,
+ 	.driver = {
+ 		.name = "haswell-audio",
++		.pm = &snd_soc_pm_ops,
+ 	},
+ };
+