[gentoo-commits] proj/linux-patches:4.4 commit in: /

[Mike Pagano]

commit:     43779e853a8df23e968a7cb008b1a2a6fe2f1689
Author:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
AuthorDate: Sat Sep  2 17:14:29 2017 +0000
Commit:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
CommitDate: Sat Sep  2 17:14:29 2017 +0000
URL:        https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=43779e85

Linux patch 4.4.86

 0000_README             |   4 +
 1085_linux-4.4.86.patch | 393 ++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 397 insertions(+)

diff --git a/0000_README b/0000_README
index e008a1d..9eb8ca5 100644
--- a/0000_README
+++ b/0000_README
@@ -383,6 +383,10 @@ Patch:  1084_linux-4.4.85.patch
 From:   http://www.kernel.org
 Desc:   Linux 4.4.85
 
+Patch:  1085_linux-4.4.86.patch
+From:   http://www.kernel.org
+Desc:   Linux 4.4.86
+
 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/1085_linux-4.4.86.patch b/1085_linux-4.4.86.patch
new file mode 100644
index 0000000..a20d519
--- /dev/null
+++ b/1085_linux-4.4.86.patch
@@ -0,0 +1,393 @@
+diff --git a/Makefile b/Makefile
+index 0f3d843f42a7..1207bf6a0e7a 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,6 +1,6 @@
+ VERSION = 4
+ PATCHLEVEL = 4
+-SUBLEVEL = 85
++SUBLEVEL = 86
+ EXTRAVERSION =
+ NAME = Blurry Fish Butt
+ 
+diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c
+index 4c46c54a3ad7..6638903f0cb9 100644
+--- a/arch/arm64/kernel/fpsimd.c
++++ b/arch/arm64/kernel/fpsimd.c
+@@ -157,9 +157,11 @@ void fpsimd_thread_switch(struct task_struct *next)
+ 
+ void fpsimd_flush_thread(void)
+ {
++	preempt_disable();
+ 	memset(&current->thread.fpsimd_state, 0, sizeof(struct fpsimd_state));
+ 	fpsimd_flush_task_state(current);
+ 	set_thread_flag(TIF_FOREIGN_FPSTATE);
++	preempt_enable();
+ }
+ 
+ /*
+diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
+index a4b466424a32..7fabf49f2aeb 100644
+--- a/arch/arm64/mm/fault.c
++++ b/arch/arm64/mm/fault.c
+@@ -313,8 +313,11 @@ retry:
+ 	 * signal first. We do not need to release the mmap_sem because it
+ 	 * would already be released in __lock_page_or_retry in mm/filemap.c.
+ 	 */
+-	if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
++	if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current)) {
++		if (!user_mode(regs))
++			goto no_context;
+ 		return 0;
++	}
+ 
+ 	/*
+ 	 * Major/minor page fault accounting is only done on the initial
+diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
+index de25aad07853..9016b4b70375 100644
+--- a/arch/x86/include/asm/io.h
++++ b/arch/x86/include/asm/io.h
+@@ -304,13 +304,13 @@ static inline unsigned type in##bwl##_p(int port)			\
+ static inline void outs##bwl(int port, const void *addr, unsigned long count) \
+ {									\
+ 	asm volatile("rep; outs" #bwl					\
+-		     : "+S"(addr), "+c"(count) : "d"(port));		\
++		     : "+S"(addr), "+c"(count) : "d"(port) : "memory");	\
+ }									\
+ 									\
+ static inline void ins##bwl(int port, void *addr, unsigned long count)	\
+ {									\
+ 	asm volatile("rep; ins" #bwl					\
+-		     : "+D"(addr), "+c"(count) : "d"(port));		\
++		     : "+D"(addr), "+c"(count) : "d"(port) : "memory");	\
+ }
+ 
+ BUILDIO(b, b, char)
+diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
+index cc91ae832ffb..6fd7b50c5747 100644
+--- a/drivers/gpu/drm/i915/intel_uncore.c
++++ b/drivers/gpu/drm/i915/intel_uncore.c
+@@ -635,7 +635,8 @@ hsw_unclaimed_reg_detect(struct drm_i915_private *dev_priv)
+ 			  "enabling oneshot unclaimed register reporting. "
+ 			  "Please use i915.mmio_debug=N for more information.\n");
+ 		__raw_i915_write32(dev_priv, FPGA_DBG, FPGA_DBG_RM_NOCLAIM);
+-		i915.mmio_debug = mmio_debug_once--;
++		i915.mmio_debug = mmio_debug_once;
++		mmio_debug_once = false;
+ 	}
+ }
+ 
+diff --git a/drivers/i2c/busses/i2c-jz4780.c b/drivers/i2c/busses/i2c-jz4780.c
+index f325663c27c5..4b58e8aaf5c5 100644
+--- a/drivers/i2c/busses/i2c-jz4780.c
++++ b/drivers/i2c/busses/i2c-jz4780.c
+@@ -786,10 +786,6 @@ static int jz4780_i2c_probe(struct platform_device *pdev)
+ 
+ 	jz4780_i2c_writew(i2c, JZ4780_I2C_INTM, 0x0);
+ 
+-	i2c->cmd = 0;
+-	memset(i2c->cmd_buf, 0, BUFSIZE);
+-	memset(i2c->data_buf, 0, BUFSIZE);
+-
+ 	i2c->irq = platform_get_irq(pdev, 0);
+ 	ret = devm_request_irq(&pdev->dev, i2c->irq, jz4780_i2c_irq, 0,
+ 			       dev_name(&pdev->dev), i2c);
+diff --git a/drivers/net/wireless/p54/fwio.c b/drivers/net/wireless/p54/fwio.c
+index 257a9eadd595..4ac6764f4897 100644
+--- a/drivers/net/wireless/p54/fwio.c
++++ b/drivers/net/wireless/p54/fwio.c
+@@ -488,7 +488,7 @@ int p54_scan(struct p54_common *priv, u16 mode, u16 dwell)
+ 
+ 			entry += sizeof(__le16);
+ 			chan->pa_points_per_curve = 8;
+-			memset(chan->curve_data, 0, sizeof(*chan->curve_data));
++			memset(chan->curve_data, 0, sizeof(chan->curve_data));
+ 			memcpy(chan->curve_data, entry,
+ 			       sizeof(struct p54_pa_curve_data_sample) *
+ 			       min((u8)8, curve_data->points_per_channel));
+diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c
+index 1910100638a2..00602abec0ea 100644
+--- a/drivers/scsi/isci/remote_node_context.c
++++ b/drivers/scsi/isci/remote_node_context.c
+@@ -66,6 +66,9 @@ const char *rnc_state_name(enum scis_sds_remote_node_context_states state)
+ {
+ 	static const char * const strings[] = RNC_STATES;
+ 
++	if (state >= ARRAY_SIZE(strings))
++		return "UNKNOWN";
++
+ 	return strings[state];
+ }
+ #undef C
+diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
+index 0e6aaef9a038..c74f74ab981c 100644
+--- a/drivers/scsi/lpfc/lpfc_els.c
++++ b/drivers/scsi/lpfc/lpfc_els.c
+@@ -1054,7 +1054,10 @@ stop_rr_fcf_flogi:
+ 					lpfc_sli4_unreg_all_rpis(vport);
+ 				}
+ 			}
+-			lpfc_issue_reg_vfi(vport);
++
++			/* Do not register VFI if the driver aborted FLOGI */
++			if (!lpfc_error_lost_link(irsp))
++				lpfc_issue_reg_vfi(vport);
+ 			lpfc_nlp_put(ndlp);
+ 			goto out;
+ 		}
+diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
+index 6514636431ab..8a9e139e2853 100644
+--- a/drivers/scsi/sg.c
++++ b/drivers/scsi/sg.c
+@@ -153,6 +153,7 @@ typedef struct sg_fd {		/* holds the state of a file descriptor */
+ 	struct sg_device *parentdp;	/* owning device */
+ 	wait_queue_head_t read_wait;	/* queue read until command done */
+ 	rwlock_t rq_list_lock;	/* protect access to list in req_arr */
++	struct mutex f_mutex;	/* protect against changes in this fd */
+ 	int timeout;		/* defaults to SG_DEFAULT_TIMEOUT      */
+ 	int timeout_user;	/* defaults to SG_DEFAULT_TIMEOUT_USER */
+ 	Sg_scatter_hold reserve;	/* buffer held for this file descriptor */
+@@ -166,6 +167,7 @@ typedef struct sg_fd {		/* holds the state of a file descriptor */
+ 	unsigned char next_cmd_len; /* 0: automatic, >0: use on next write() */
+ 	char keep_orphan;	/* 0 -> drop orphan (def), 1 -> keep for read() */
+ 	char mmap_called;	/* 0 -> mmap() never called on this fd */
++	char res_in_use;	/* 1 -> 'reserve' array in use */
+ 	struct kref f_ref;
+ 	struct execute_work ew;
+ } Sg_fd;
+@@ -209,7 +211,6 @@ static void sg_remove_sfp(struct kref *);
+ static Sg_request *sg_get_rq_mark(Sg_fd * sfp, int pack_id);
+ static Sg_request *sg_add_request(Sg_fd * sfp);
+ static int sg_remove_request(Sg_fd * sfp, Sg_request * srp);
+-static int sg_res_in_use(Sg_fd * sfp);
+ static Sg_device *sg_get_dev(int dev);
+ static void sg_device_destroy(struct kref *kref);
+ 
+@@ -625,6 +626,7 @@ sg_write(struct file *filp, const char __user *buf, size_t count, loff_t * ppos)
+ 	}
+ 	buf += SZ_SG_HEADER;
+ 	__get_user(opcode, buf);
++	mutex_lock(&sfp->f_mutex);
+ 	if (sfp->next_cmd_len > 0) {
+ 		cmd_size = sfp->next_cmd_len;
+ 		sfp->next_cmd_len = 0;	/* reset so only this write() effected */
+@@ -633,6 +635,7 @@ sg_write(struct file *filp, const char __user *buf, size_t count, loff_t * ppos)
+ 		if ((opcode >= 0xc0) && old_hdr.twelve_byte)
+ 			cmd_size = 12;
+ 	}
++	mutex_unlock(&sfp->f_mutex);
+ 	SCSI_LOG_TIMEOUT(4, sg_printk(KERN_INFO, sdp,
+ 		"sg_write:   scsi opcode=0x%02x, cmd_size=%d\n", (int) opcode, cmd_size));
+ /* Determine buffer size.  */
+@@ -732,7 +735,7 @@ sg_new_write(Sg_fd *sfp, struct file *file, const char __user *buf,
+ 			sg_remove_request(sfp, srp);
+ 			return -EINVAL;	/* either MMAP_IO or DIRECT_IO (not both) */
+ 		}
+-		if (sg_res_in_use(sfp)) {
++		if (sfp->res_in_use) {
+ 			sg_remove_request(sfp, srp);
+ 			return -EBUSY;	/* reserve buffer already being used */
+ 		}
+@@ -902,7 +905,7 @@ sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg)
+ 			return result;
+ 		if (val) {
+ 			sfp->low_dma = 1;
+-			if ((0 == sfp->low_dma) && (0 == sg_res_in_use(sfp))) {
++			if ((0 == sfp->low_dma) && !sfp->res_in_use) {
+ 				val = (int) sfp->reserve.bufflen;
+ 				sg_remove_scat(sfp, &sfp->reserve);
+ 				sg_build_reserve(sfp, val);
+@@ -977,12 +980,18 @@ sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg)
+                         return -EINVAL;
+ 		val = min_t(int, val,
+ 			    max_sectors_bytes(sdp->device->request_queue));
++		mutex_lock(&sfp->f_mutex);
+ 		if (val != sfp->reserve.bufflen) {
+-			if (sg_res_in_use(sfp) || sfp->mmap_called)
++			if (sfp->mmap_called ||
++			    sfp->res_in_use) {
++				mutex_unlock(&sfp->f_mutex);
+ 				return -EBUSY;
++			}
++
+ 			sg_remove_scat(sfp, &sfp->reserve);
+ 			sg_build_reserve(sfp, val);
+ 		}
++		mutex_unlock(&sfp->f_mutex);
+ 		return 0;
+ 	case SG_GET_RESERVED_SIZE:
+ 		val = min_t(int, sfp->reserve.bufflen,
+@@ -1737,13 +1746,22 @@ sg_start_req(Sg_request *srp, unsigned char *cmd)
+ 		md = &map_data;
+ 
+ 	if (md) {
+-		if (!sg_res_in_use(sfp) && dxfer_len <= rsv_schp->bufflen)
++		mutex_lock(&sfp->f_mutex);
++		if (dxfer_len <= rsv_schp->bufflen &&
++		    !sfp->res_in_use) {
++			sfp->res_in_use = 1;
+ 			sg_link_reserve(sfp, srp, dxfer_len);
+-		else {
++		} else if ((hp->flags & SG_FLAG_MMAP_IO) && sfp->res_in_use) {
++			mutex_unlock(&sfp->f_mutex);
++			return -EBUSY;
++		} else {
+ 			res = sg_build_indirect(req_schp, sfp, dxfer_len);
+-			if (res)
++			if (res) {
++				mutex_unlock(&sfp->f_mutex);
+ 				return res;
++			}
+ 		}
++		mutex_unlock(&sfp->f_mutex);
+ 
+ 		md->pages = req_schp->pages;
+ 		md->page_order = req_schp->page_order;
+@@ -2034,6 +2052,8 @@ sg_unlink_reserve(Sg_fd * sfp, Sg_request * srp)
+ 	req_schp->sglist_len = 0;
+ 	sfp->save_scat_len = 0;
+ 	srp->res_used = 0;
++	/* Called without mutex lock to avoid deadlock */
++	sfp->res_in_use = 0;
+ }
+ 
+ static Sg_request *
+@@ -2145,6 +2165,7 @@ sg_add_sfp(Sg_device * sdp)
+ 	rwlock_init(&sfp->rq_list_lock);
+ 
+ 	kref_init(&sfp->f_ref);
++	mutex_init(&sfp->f_mutex);
+ 	sfp->timeout = SG_DEFAULT_TIMEOUT;
+ 	sfp->timeout_user = SG_DEFAULT_TIMEOUT_USER;
+ 	sfp->force_packid = SG_DEF_FORCE_PACK_ID;
+@@ -2220,20 +2241,6 @@ sg_remove_sfp(struct kref *kref)
+ 	schedule_work(&sfp->ew.work);
+ }
+ 
+-static int
+-sg_res_in_use(Sg_fd * sfp)
+-{
+-	const Sg_request *srp;
+-	unsigned long iflags;
+-
+-	read_lock_irqsave(&sfp->rq_list_lock, iflags);
+-	for (srp = sfp->headrp; srp; srp = srp->nextrp)
+-		if (srp->res_used)
+-			break;
+-	read_unlock_irqrestore(&sfp->rq_list_lock, iflags);
+-	return srp ? 1 : 0;
+-}
+-
+ #ifdef CONFIG_SCSI_PROC_FS
+ static int
+ sg_idr_max_id(int id, void *p, void *data)
+diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
+index 9c62a6f9757a..600c67ef8a03 100644
+--- a/fs/btrfs/volumes.c
++++ b/fs/btrfs/volumes.c
+@@ -108,7 +108,7 @@ const struct btrfs_raid_attr btrfs_raid_array[BTRFS_NR_RAID_TYPES] = {
+ 	},
+ };
+ 
+-const u64 const btrfs_raid_group[BTRFS_NR_RAID_TYPES] = {
++const u64 btrfs_raid_group[BTRFS_NR_RAID_TYPES] = {
+ 	[BTRFS_RAID_RAID10] = BTRFS_BLOCK_GROUP_RAID10,
+ 	[BTRFS_RAID_RAID1]  = BTRFS_BLOCK_GROUP_RAID1,
+ 	[BTRFS_RAID_DUP]    = BTRFS_BLOCK_GROUP_DUP,
+diff --git a/include/linux/lightnvm.h b/include/linux/lightnvm.h
+index 782d4e814e21..4bc4b1b13193 100644
+--- a/include/linux/lightnvm.h
++++ b/include/linux/lightnvm.h
+@@ -310,6 +310,7 @@ static inline struct ppa_addr dev_to_generic_addr(struct nvm_dev *dev,
+ {
+ 	struct ppa_addr l;
+ 
++	l.ppa = 0;
+ 	/*
+ 	 * (r.ppa << X offset) & X len bitmask. X eq. blk, pg, etc.
+ 	 */
+diff --git a/kernel/gcov/base.c b/kernel/gcov/base.c
+index 7080ae1eb6c1..f850e906564b 100644
+--- a/kernel/gcov/base.c
++++ b/kernel/gcov/base.c
+@@ -98,6 +98,12 @@ void __gcov_merge_icall_topn(gcov_type *counters, unsigned int n_counters)
+ }
+ EXPORT_SYMBOL(__gcov_merge_icall_topn);
+ 
++void __gcov_exit(void)
++{
++	/* Unused. */
++}
++EXPORT_SYMBOL(__gcov_exit);
++
+ /**
+  * gcov_enable_events - enable event reporting through gcov_event()
+  *
+diff --git a/kernel/gcov/gcc_4_7.c b/kernel/gcov/gcc_4_7.c
+index e25e92fb44fa..46a18e72bce6 100644
+--- a/kernel/gcov/gcc_4_7.c
++++ b/kernel/gcov/gcc_4_7.c
+@@ -18,7 +18,9 @@
+ #include <linux/vmalloc.h>
+ #include "gcov.h"
+ 
+-#if __GNUC__ == 5 && __GNUC_MINOR__ >= 1
++#if (__GNUC__ >= 7)
++#define GCOV_COUNTERS			9
++#elif (__GNUC__ > 5) || (__GNUC__ == 5 && __GNUC_MINOR__ >= 1)
+ #define GCOV_COUNTERS			10
+ #elif __GNUC__ == 4 && __GNUC_MINOR__ >= 9
+ #define GCOV_COUNTERS			9
+diff --git a/sound/pci/au88x0/au88x0_core.c b/sound/pci/au88x0/au88x0_core.c
+index 74177189063c..d3125c169684 100644
+--- a/sound/pci/au88x0/au88x0_core.c
++++ b/sound/pci/au88x0/au88x0_core.c
+@@ -2150,8 +2150,7 @@ vortex_adb_allocroute(vortex_t *vortex, int dma, int nr_ch, int dir,
+ 							   stream->resources, en,
+ 							   VORTEX_RESOURCE_SRC)) < 0) {
+ 					memset(stream->resources, 0,
+-					       sizeof(unsigned char) *
+-					       VORTEX_RESOURCE_LAST);
++					       sizeof(stream->resources));
+ 					return -EBUSY;
+ 				}
+ 				if (stream->type != VORTEX_PCM_A3D) {
+@@ -2161,7 +2160,7 @@ vortex_adb_allocroute(vortex_t *vortex, int dma, int nr_ch, int dir,
+ 								   VORTEX_RESOURCE_MIXIN)) < 0) {
+ 						memset(stream->resources,
+ 						       0,
+-						       sizeof(unsigned char) * VORTEX_RESOURCE_LAST);
++						       sizeof(stream->resources));
+ 						return -EBUSY;
+ 					}
+ 				}
+@@ -2174,8 +2173,7 @@ vortex_adb_allocroute(vortex_t *vortex, int dma, int nr_ch, int dir,
+ 						   stream->resources, en,
+ 						   VORTEX_RESOURCE_A3D)) < 0) {
+ 				memset(stream->resources, 0,
+-				       sizeof(unsigned char) *
+-				       VORTEX_RESOURCE_LAST);
++				       sizeof(stream->resources));
+ 				dev_err(vortex->card->dev,
+ 					"out of A3D sources. Sorry\n");
+ 				return -EBUSY;
+@@ -2289,8 +2287,7 @@ vortex_adb_allocroute(vortex_t *vortex, int dma, int nr_ch, int dir,
+ 						   VORTEX_RESOURCE_MIXOUT))
+ 			    < 0) {
+ 				memset(stream->resources, 0,
+-				       sizeof(unsigned char) *
+-				       VORTEX_RESOURCE_LAST);
++				       sizeof(stream->resources));
+ 				return -EBUSY;
+ 			}
+ 			if ((src[i] =
+@@ -2298,8 +2295,7 @@ vortex_adb_allocroute(vortex_t *vortex, int dma, int nr_ch, int dir,
+ 						   stream->resources, en,
+ 						   VORTEX_RESOURCE_SRC)) < 0) {
+ 				memset(stream->resources, 0,
+-				       sizeof(unsigned char) *
+-				       VORTEX_RESOURCE_LAST);
++				       sizeof(stream->resources));
+ 				return -EBUSY;
+ 			}
+ 		}