Merge 4.4.122 into 8.x-unified

Changes in 4.4.122: (64 commits)
        RDMA/ucma: Limit possible option size
        RDMA/ucma: Check that user doesn't overflow QP state
        RDMA/mlx5: Fix integer overflow while resizing CQ
        scsi: qla2xxx: Fix NULL pointer crash due to active timer for ABTS
        workqueue: Allow retrieval of current task's work struct
        drm: Allow determining if current task is output poll worker
        drm/nouveau: Fix deadlock on runtime suspend
        drm/radeon: Fix deadlock on runtime suspend
        drm/amdgpu: Fix deadlock on runtime suspend
        drm/amdgpu: Notify sbios device ready before send request
        drm/radeon: fix KV harvesting
        drm/amdgpu: fix KV harvesting
        MIPS: BMIPS: Do not mask IPIs during suspend
        MIPS: ath25: Check for kzalloc allocation failure
        MIPS: OCTEON: irq: Check for null return on kzalloc allocation
        Input: matrix_keypad - fix race when disabling interrupts
        loop: Fix lost writes caused by missing flag
        kbuild: Handle builtin dtb file names containing hyphens
        bcache: don't attach backing with duplicate UUID
        x86/MCE: Serialize sysfs changes
        ALSA: hda/realtek - Fix dock line-out volume on Dell Precision 7520
        ALSA: seq: Don't allow resizing pool in use
        ALSA: seq: More protection for concurrent write and ioctl races
        ALSA: hda: add dock and led support for HP EliteBook 820 G3
        ALSA: hda: add dock and led support for HP ProBook 640 G2
        nospec: Include <asm/barrier.h> dependency
        watchdog: hpwdt: SMBIOS check
        watchdog: hpwdt: Check source of NMI
        watchdog: hpwdt: fix unused variable warning
        netfilter: nfnetlink_queue: fix timestamp attribute
        ARM: omap2: hide omap3_save_secure_ram on non-OMAP3 builds
        Input: tca8418_keypad - remove double read of key event register
        tc358743: fix register i2c_rd/wr function fix
        netfilter: add back stackpointer size checks
        netfilter: x_tables: fix missing timer initialization in xt_LED
        netfilter: nat: cope with negative port range
        netfilter: IDLETIMER: be syzkaller friendly
        netfilter: ebtables: CONFIG_COMPAT: don't trust userland offsets
        netfilter: bridge: ebt_among: add missing match size checks
        netfilter: ipv6: fix use-after-free Write in nf_nat_ipv6_manip_pkt
        netfilter: use skb_to_full_sk in ip_route_me_harder
        netfilter: x_tables: pass xt_counters struct instead of packet counter
        netfilter: x_tables: pass xt_counters struct to counter allocator
        netfilter: x_tables: pack percpu counter allocations
        ext4: inplace xattr block update fails to deduplicate blocks
        ubi: Fix race condition between ubi volume creation and udev
        scsi: qla2xxx: Replace fcport alloc with qla2x00_alloc_fcport
        NFS: Fix an incorrect type in struct nfs_direct_req
        Revert "ARM: dts: LogicPD Torpedo: Fix I2C1 pinmux"
        x86/module: Detect and skip invalid relocations
        x86: Treat R_X86_64_PLT32 as R_X86_64_PC32
        serial: sh-sci: prevent lockup on full TTY buffers
        tty/serial: atmel: add new version check for usart
        uas: fix comparison for error code
        staging: comedi: fix comedi_nsamples_left.
        staging: android: ashmem: Fix lockdep issue during llseek
        USB: storage: Add JMicron bridge 152d:2567 to unusual_devs.h
        usb: quirks: add control message delay for 1b1c:1b20
        USB: usbmon: remove assignment from IS_ERR argument
        usb: usbmon: Read text within supplied buffer size
        usb: gadget: f_fs: Fix use-after-free in ffs_fs_kill_sb()
        serial: 8250_pci: Add Brainboxes UC-260 4 port serial device
        fixup: sctp: verify size of a new chunk in _sctp_make_chunk()
        Linux 4.4.122

Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>

Makefile

@@ -1,6 +1,6 @@
 VERSION = 4
 PATCHLEVEL = 4
-SUBLEVEL = 121
+SUBLEVEL = 122
 EXTRAVERSION =
 NAME = Blurry Fish Butt
 

arch/arm/boot/dts/logicpd-torpedo-som.dtsi

@@ -90,8 +90,6 @@
 };
 
 &i2c1 {
-	pinctrl-names = "default";
-	pinctrl-0 = <&i2c1_pins>;
 	clock-frequency = <2600000>;
 
 	twl: twl@48 {
@@ -148,12 +146,6 @@
 			OMAP3630_CORE2_IOPAD(0x25da, PIN_INPUT_PULLUP | MUX_MODE2)   /* etk_ctl.sdmmc3_cmd */
 		>;
 	};
-	i2c1_pins: pinmux_i2c1_pins {
-		pinctrl-single,pins = <
-			OMAP3_CORE1_IOPAD(0x21ba, PIN_INPUT | MUX_MODE0)        /* i2c1_scl.i2c1_scl */
-			OMAP3_CORE1_IOPAD(0x21bc, PIN_INPUT | MUX_MODE0)        /* i2c1_sda.i2c1_sda */
-		>;
-	};
 };
 
 #include "twl4030.dtsi"

arch/arm/mach-omap2/omap-secure.c

@@ -73,6 +73,7 @@ phys_addr_t omap_secure_ram_mempool_base(void)
 	return omap_secure_memblock_base;
 }
 
+#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_PM)
 u32 omap3_save_secure_ram(void __iomem *addr, int size)
 {
 	u32 ret;
@@ -91,6 +92,7 @@ u32 omap3_save_secure_ram(void __iomem *addr, int size)
 
 	return ret;
 }
+#endif
 
 /**
  * rx51_secure_dispatcher: Routine to dispatch secure PPA API calls

arch/mips/ath25/board.c

@@ -135,6 +135,8 @@ int __init ath25_find_config(phys_addr_t base, unsigned long size)
 	}
 
 	board_data = kzalloc(BOARD_CONFIG_BUFSZ, GFP_KERNEL);
+	if (!board_data)
+		goto error;
 	ath25_board.config = (struct ath25_boarddata *)board_data;
 	memcpy_fromio(board_data, bcfg, 0x100);
 	if (broken_boarddata) {

arch/mips/cavium-octeon/octeon-irq.c

@@ -2246,6 +2246,8 @@ static int __init octeon_irq_init_cib(struct device_node *ciu_node,
 	}
 
 	host_data = kzalloc(sizeof(*host_data), GFP_KERNEL);
+	if (!host_data)
+		return -ENOMEM;
 	raw_spin_lock_init(&host_data->lock);
 
 	addr = of_get_address(ciu_node, 0, NULL, NULL);

arch/mips/kernel/smp-bmips.c

@@ -166,11 +166,11 @@ static void bmips_prepare_cpus(unsigned int max_cpus)
 		return;
 	}
 
-	if (request_irq(IPI0_IRQ, bmips_ipi_interrupt, IRQF_PERCPU,
-			"smp_ipi0", NULL))
+	if (request_irq(IPI0_IRQ, bmips_ipi_interrupt,
+			IRQF_PERCPU | IRQF_NO_SUSPEND, "smp_ipi0", NULL))
 		panic("Can't request IPI0 interrupt");
-	if (request_irq(IPI1_IRQ, bmips_ipi_interrupt, IRQF_PERCPU,
-			"smp_ipi1", NULL))
+	if (request_irq(IPI1_IRQ, bmips_ipi_interrupt,
+			IRQF_PERCPU | IRQF_NO_SUSPEND, "smp_ipi1", NULL))
 		panic("Can't request IPI1 interrupt");
 }
 

arch/x86/kernel/cpu/mcheck/mce.c

@@ -60,6 +60,9 @@ static DEFINE_MUTEX(mce_chrdev_read_mutex);
 	smp_load_acquire(&(p)); \
 })
 
+/* sysfs synchronization */
+static DEFINE_MUTEX(mce_sysfs_mutex);
+
 #define CREATE_TRACE_POINTS
 #include <trace/events/mce.h>
 
@@ -2220,6 +2223,7 @@ static ssize_t set_ignore_ce(struct device *s,
 	if (kstrtou64(buf, 0, &new) < 0)
 		return -EINVAL;
 
+	mutex_lock(&mce_sysfs_mutex);
 	if (mca_cfg.ignore_ce ^ !!new) {
 		if (new) {
 			/* disable ce features */
@@ -2232,6 +2236,8 @@ static ssize_t set_ignore_ce(struct device *s,
 			on_each_cpu(mce_enable_ce, (void *)1, 1);
 		}
 	}
+	mutex_unlock(&mce_sysfs_mutex);
+
 	return size;
 }
 
@@ -2244,6 +2250,7 @@ static ssize_t set_cmci_disabled(struct device *s,
 	if (kstrtou64(buf, 0, &new) < 0)
 		return -EINVAL;
 
+	mutex_lock(&mce_sysfs_mutex);
 	if (mca_cfg.cmci_disabled ^ !!new) {
 		if (new) {
 			/* disable cmci */
@@ -2255,15 +2262,28 @@ static ssize_t set_cmci_disabled(struct device *s,
 			on_each_cpu(mce_enable_ce, NULL, 1);
 		}
 	}
+	mutex_unlock(&mce_sysfs_mutex);
+
 	return size;
 }
 
 static ssize_t store_int_with_restart(struct device *s,
 				      struct device_attribute *attr,
 				      const char *buf, size_t size)
 {
-	ssize_t ret = device_store_int(s, attr, buf, size);
+	unsigned long old_check_interval = check_interval;
+	ssize_t ret = device_store_ulong(s, attr, buf, size);
+
+	if (check_interval == old_check_interval)
+		return ret;
+
+	if (check_interval < 1)
+		check_interval = 1;
+
+	mutex_lock(&mce_sysfs_mutex);
 	mce_restart();
+	mutex_unlock(&mce_sysfs_mutex);
+
 	return ret;
 }
 

arch/x86/kernel/machine_kexec_64.c

@@ -519,6 +519,7 @@ int arch_kexec_apply_relocations_add(const Elf64_Ehdr *ehdr,
 				goto overflow;
 			break;
 		case R_X86_64_PC32:
+		case R_X86_64_PLT32:
 			value -= (u64)address;
 			*(u32 *)location = value;
 			break;

arch/x86/kernel/module.c

@@ -170,19 +170,28 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
 		case R_X86_64_NONE:
 			break;
 		case R_X86_64_64:
+			if (*(u64 *)loc != 0)
+				goto invalid_relocation;
 			*(u64 *)loc = val;
 			break;
 		case R_X86_64_32:
+			if (*(u32 *)loc != 0)
+				goto invalid_relocation;
 			*(u32 *)loc = val;
 			if (val != *(u32 *)loc)
 				goto overflow;
 			break;
 		case R_X86_64_32S:
+			if (*(s32 *)loc != 0)
+				goto invalid_relocation;
 			*(s32 *)loc = val;
 			if ((s64)val != *(s32 *)loc)
 				goto overflow;
 			break;
 		case R_X86_64_PC32:
+		case R_X86_64_PLT32:
+			if (*(u32 *)loc != 0)
+				goto invalid_relocation;
 			val -= (u64)loc;
 			*(u32 *)loc = val;
 #if 0
@@ -198,6 +207,11 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
 	}
 	return 0;
 
+invalid_relocation:
+	pr_err("x86/modules: Skipping invalid relocation target, existing value is nonzero for type %d, loc %p, val %Lx\n",
+	       (int)ELF64_R_TYPE(rel[i].r_info), loc, val);
+	return -ENOEXEC;
+
 overflow:
 	pr_err("overflow in relocation type %d val %Lx\n",
 	       (int)ELF64_R_TYPE(rel[i].r_info), val);

arch/x86/tools/relocs.c

@@ -769,9 +769,12 @@ static int do_reloc64(struct section *sec, Elf_Rel *rel, ElfW(Sym) *sym,
 		break;
 
 	case R_X86_64_PC32:
+	case R_X86_64_PLT32:
 		/*
 		 * PC relative relocations don't need to be adjusted unless
 		 * referencing a percpu symbol.
+		 *
+		 * NB: R_X86_64_PLT32 can be treated as R_X86_64_PC32.
 		 */
 		if (is_percpu_sym(sym, symname))
 			add_reloc(&relocs32neg, offset);

drivers/block/loop.c

@@ -263,7 +263,7 @@ static int lo_write_bvec(struct file *file, struct bio_vec *bvec, loff_t *ppos)
 	struct iov_iter i;
 	ssize_t bw;
 
-	iov_iter_bvec(&i, ITER_BVEC, bvec, 1, bvec->bv_len);
+	iov_iter_bvec(&i, ITER_BVEC | WRITE, bvec, 1, bvec->bv_len);
 
 	file_start_write(file);
 	bw = vfs_iter_write(file, &i, ppos);

drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c

@@ -585,6 +585,9 @@ int amdgpu_acpi_pcie_performance_request(struct amdgpu_device *adev,
 	size_t size;
 	u32 retry = 3;
 
+	if (amdgpu_acpi_pcie_notify_device_ready(adev))
+		return -EINVAL;
+
 	/* Get the device handle */
 	handle = ACPI_HANDLE(&adev->pdev->dev);
 	if (!handle)

drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c

@@ -739,9 +739,11 @@ amdgpu_connector_lvds_detect(struct drm_connector *connector, bool force)
 	enum drm_connector_status ret = connector_status_disconnected;
 	int r;
 
-	r = pm_runtime_get_sync(connector->dev->dev);
-	if (r < 0)
-		return connector_status_disconnected;
+	if (!drm_kms_helper_is_poll_worker()) {
+		r = pm_runtime_get_sync(connector->dev->dev);
+		if (r < 0)
+			return connector_status_disconnected;
+	}
 
 	if (encoder) {
 		struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
@@ -760,8 +762,12 @@ amdgpu_connector_lvds_detect(struct drm_connector *connector, bool force)
 	/* check acpi lid status ??? */
 
 	amdgpu_connector_update_scratch_regs(connector, ret);
-	pm_runtime_mark_last_busy(connector->dev->dev);
-	pm_runtime_put_autosuspend(connector->dev->dev);
+
+	if (!drm_kms_helper_is_poll_worker()) {
+		pm_runtime_mark_last_busy(connector->dev->dev);
+		pm_runtime_put_autosuspend(connector->dev->dev);
+	}
+
 	return ret;
 }
 
@@ -862,9 +868,11 @@ amdgpu_connector_vga_detect(struct drm_connector *connector, bool force)
 	enum drm_connector_status ret = connector_status_disconnected;
 	int r;
 
-	r = pm_runtime_get_sync(connector->dev->dev);
-	if (r < 0)
-		return connector_status_disconnected;
+	if (!drm_kms_helper_is_poll_worker()) {
+		r = pm_runtime_get_sync(connector->dev->dev);
+		if (r < 0)
+			return connector_status_disconnected;
+	}
 
 	encoder = amdgpu_connector_best_single_encoder(connector);
 	if (!encoder)
@@ -918,8 +926,10 @@ amdgpu_connector_vga_detect(struct drm_connector *connector, bool force)
 	amdgpu_connector_update_scratch_regs(connector, ret);
 
 out:
-	pm_runtime_mark_last_busy(connector->dev->dev);
-	pm_runtime_put_autosuspend(connector->dev->dev);
+	if (!drm_kms_helper_is_poll_worker()) {
+		pm_runtime_mark_last_busy(connector->dev->dev);
+		pm_runtime_put_autosuspend(connector->dev->dev);
+	}
 
 	return ret;
 }
@@ -981,9 +991,11 @@ amdgpu_connector_dvi_detect(struct drm_connector *connector, bool force)
 	enum drm_connector_status ret = connector_status_disconnected;
 	bool dret = false, broken_edid = false;
 
-	r = pm_runtime_get_sync(connector->dev->dev);
-	if (r < 0)
-		return connector_status_disconnected;
+	if (!drm_kms_helper_is_poll_worker()) {
+		r = pm_runtime_get_sync(connector->dev->dev);
+		if (r < 0)
+			return connector_status_disconnected;
+	}
 
 	if (!force && amdgpu_connector_check_hpd_status_unchanged(connector)) {
 		ret = connector->status;
@@ -1108,8 +1120,10 @@ amdgpu_connector_dvi_detect(struct drm_connector *connector, bool force)
 	amdgpu_connector_update_scratch_regs(connector, ret);
 
 exit:
-	pm_runtime_mark_last_busy(connector->dev->dev);
-	pm_runtime_put_autosuspend(connector->dev->dev);
+	if (!drm_kms_helper_is_poll_worker()) {
+		pm_runtime_mark_last_busy(connector->dev->dev);
+		pm_runtime_put_autosuspend(connector->dev->dev);
+	}
 
 	return ret;
 }
@@ -1351,9 +1365,11 @@ amdgpu_connector_dp_detect(struct drm_connector *connector, bool force)
 	struct drm_encoder *encoder = amdgpu_connector_best_single_encoder(connector);
 	int r;
 
-	r = pm_runtime_get_sync(connector->dev->dev);
-	if (r < 0)
-		return connector_status_disconnected;
+	if (!drm_kms_helper_is_poll_worker()) {
+		r = pm_runtime_get_sync(connector->dev->dev);
+		if (r < 0)
+			return connector_status_disconnected;
+	}
 
 	if (!force && amdgpu_connector_check_hpd_status_unchanged(connector)) {
 		ret = connector->status;
@@ -1421,8 +1437,10 @@ amdgpu_connector_dp_detect(struct drm_connector *connector, bool force)
 
 	amdgpu_connector_update_scratch_regs(connector, ret);
 out:
-	pm_runtime_mark_last_busy(connector->dev->dev);
-	pm_runtime_put_autosuspend(connector->dev->dev);
+	if (!drm_kms_helper_is_poll_worker()) {
+		pm_runtime_mark_last_busy(connector->dev->dev);
+		pm_runtime_put_autosuspend(connector->dev->dev);
+	}
 
 	return ret;
 }

drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c

@@ -2104,34 +2104,8 @@ static void gfx_v7_0_gpu_init(struct amdgpu_device *adev)
 	case CHIP_KAVERI:
 		adev->gfx.config.max_shader_engines = 1;
 		adev->gfx.config.max_tile_pipes = 4;
-		if ((adev->pdev->device == 0x1304) ||
-		    (adev->pdev->device == 0x1305) ||
-		    (adev->pdev->device == 0x130C) ||
-		    (adev->pdev->device == 0x130F) ||
-		    (adev->pdev->device == 0x1310) ||
-		    (adev->pdev->device == 0x1311) ||
-		    (adev->pdev->device == 0x131C)) {
-			adev->gfx.config.max_cu_per_sh = 8;
-			adev->gfx.config.max_backends_per_se = 2;
-		} else if ((adev->pdev->device == 0x1309) ||
-			   (adev->pdev->device == 0x130A) ||
-			   (adev->pdev->device == 0x130D) ||
-			   (adev->pdev->device == 0x1313) ||
-			   (adev->pdev->device == 0x131D)) {
-			adev->gfx.config.max_cu_per_sh = 6;
-			adev->gfx.config.max_backends_per_se = 2;
-		} else if ((adev->pdev->device == 0x1306) ||
-			   (adev->pdev->device == 0x1307) ||
-			   (adev->pdev->device == 0x130B) ||
-			   (adev->pdev->device == 0x130E) ||
-			   (adev->pdev->device == 0x1315) ||
-			   (adev->pdev->device == 0x131B)) {
-			adev->gfx.config.max_cu_per_sh = 4;
-			adev->gfx.config.max_backends_per_se = 1;
-		} else {
-			adev->gfx.config.max_cu_per_sh = 3;
-			adev->gfx.config.max_backends_per_se = 1;
-		}
+		adev->gfx.config.max_cu_per_sh = 8;
+		adev->gfx.config.max_backends_per_se = 2;
 		adev->gfx.config.max_sh_per_se = 1;
 		adev->gfx.config.max_texture_channel_caches = 4;
 		adev->gfx.config.max_gprs = 256;