Applied assortment of Arch Linux ARM patches

arch/arm/include/asm/ftrace.h

@@ -45,7 +45,7 @@ void *return_address(unsigned int);
 
 #else
 
-extern inline void *return_address(unsigned int level)
+static inline void *return_address(unsigned int level)
 {
 	return NULL;
 }

arch/arm/include/asm/unistd.h

@@ -15,7 +15,7 @@
 
 #include <uapi/asm/unistd.h>
 
-#define __NR_syscalls  (384)
+#define __NR_syscalls  (388)
 #define __ARM_NR_cmpxchg		(__ARM_NR_BASE+0x00fff0)
 
 #define __ARCH_WANT_STAT64

arch/arm/include/uapi/asm/unistd.h

@@ -410,6 +410,7 @@
 #define __NR_sched_getattr		(__NR_SYSCALL_BASE+381)
 #define __NR_renameat2			(__NR_SYSCALL_BASE+382)
 #define __NR_seccomp			(__NR_SYSCALL_BASE+383)
+#define __NR_getrandom			(__NR_SYSCALL_BASE+384)
 
 /*
  * This may need to be greater than __NR_last_syscall+1 in order to

arch/arm/kernel/calls.S

@@ -393,6 +393,7 @@
 		CALL(sys_ni_syscall) /* CALL(sys_sched_getattr) */
 		CALL(sys_ni_syscall) /* CALL(sys_renameat2) */
 		CALL(sys_seccomp)
+		CALL(sys_getrandom)
 #ifndef syscalls_counted
 .equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
 #define syscalls_counted

arch/arm/kernel/return_address.c

@@ -63,10 +63,12 @@ void *return_address(unsigned int level)
 #warning "TODO: return_address should use unwind tables"
 #endif
 
+/*
 void *return_address(unsigned int level)
 {
 	return NULL;
 }
+*/
 
 #endif /* if defined(CONFIG_FRAME_POINTER) && !defined(CONFIG_ARM_UNWIND) / else */
 

arch/x86/syscalls/syscall_32.tbl

@@ -361,3 +361,4 @@
 352	i386	sched_getattr		sys_ni_syscall
 353	i386	renameat2		sys_ni_syscall
 354	i386	seccomp			sys_seccomp
+355	i386	getrandom		sys_getrandom

arch/x86/syscalls/syscall_64.tbl

@@ -324,6 +324,7 @@
 315	common	sched_getattr		sys_ni_syscall
 316	common	renameat2		sys_ni_syscall
 317	common	seccomp			sys_seccomp
+318	common	getrandom		sys_getrandom
 
 #
 # x32-specific system call numbers start at 512 to avoid cache impact

drivers/base/regmap/regcache-rbtree.c

@@ -23,14 +23,16 @@ static int regcache_rbtree_write(struct regmap *map, unsigned int reg,
 static int regcache_rbtree_exit(struct regmap *map);
 
 struct regcache_rbtree_node {
-	/* the actual rbtree node holding this block */
-	struct rb_node node;
-	/* base register handled by this block */
-	unsigned int base_reg;
 	/* block of adjacent registers */
 	void *block;
+	/* Which registers are present */
+	long *cache_present;
+	/* base register handled by this block */
+	unsigned int base_reg;
 	/* number of registers available in the block */
 	unsigned int blklen;
+	/* the actual rbtree node holding this block */
+	struct rb_node node;
 } __attribute__ ((packed));
 
 struct regcache_rbtree_ctx {

drivers/char/random.c

@@ -265,6 +265,9 @@
 #include <asm/irq.h>
 #include <asm/irq_regs.h>
 #include <asm/io.h>
+#include <linux/syscalls.h>
+#include <linux/completion.h>
+
 
 #define CREATE_TRACE_POINTS
 #include <trace/events/random.h>
@@ -397,6 +400,7 @@ static struct poolinfo {
  */
 static DECLARE_WAIT_QUEUE_HEAD(random_read_wait);
 static DECLARE_WAIT_QUEUE_HEAD(random_write_wait);
+static DECLARE_WAIT_QUEUE_HEAD(urandom_init_wait);
 static struct fasync_struct *fasync;
 
 static bool debug;
@@ -606,8 +610,11 @@ retry:
 
 	if (!r->initialized && nbits > 0) {
 		r->entropy_total += nbits;
-		if (r->entropy_total > 128)
+		if (r->entropy_total > 128) {
 			r->initialized = 1;
+			if (r == &nonblocking_pool)
+				prandom_reseed_late();
+		}
 	}
 
 	trace_credit_entropy_bits(r->name, nbits, entropy_count,
@@ -1015,13 +1022,14 @@ static ssize_t extract_entropy_user(struct entropy_store *r, void __user *buf,
 {
 	ssize_t ret = 0, i;
 	__u8 tmp[EXTRACT_SIZE];
+    int large_request = (nbytes > 256);
 
 	trace_extract_entropy_user(r->name, nbytes, r->entropy_count, _RET_IP_);
 	xfer_secondary_pool(r, nbytes);
 	nbytes = account(r, nbytes, 0, 0);
 
 	while (nbytes) {
-		if (need_resched()) {
+		if (large_request && need_resched()) {
 			if (signal_pending(current)) {
 				if (ret == 0)
 					ret = -ERESTARTSYS;
@@ -1155,8 +1163,7 @@ void rand_initialize_disk(struct gendisk *disk)
 #endif
 
 static ssize_t
-random_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
+_random_read(int nonblock, char __user *buf, size_t nbytes){
-{
 	ssize_t n, retval = 0, count = 0;
 
 	if (nbytes == 0)
@@ -1180,7 +1187,7 @@ random_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
 			  n*8, (nbytes-n)*8);
 
 		if (n == 0) {
-			if (file->f_flags & O_NONBLOCK) {
+			if (nonblock) {
 				retval = -EAGAIN;
 				break;
 			}
@@ -1211,6 +1218,12 @@ random_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
 	return (count ? count : retval);
 }
 
+static ssize_t
+random_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
+{
+	return _random_read(file->f_flags & O_NONBLOCK, buf, nbytes);
+}
+
 static ssize_t
 urandom_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
 {
@@ -1337,6 +1350,29 @@ const struct file_operations urandom_fops = {
 	.llseek = noop_llseek,
 };
 
+SYSCALL_DEFINE3(getrandom, char __user *, buf, size_t, count,
+		unsigned int, flags)
+{
+	if (flags & ~(GRND_NONBLOCK|GRND_RANDOM))
+		return -EINVAL;
+
+	if (count > INT_MAX)
+		count = INT_MAX;
+
+	if (flags & GRND_RANDOM)
+		return _random_read(flags & GRND_NONBLOCK, buf, count);
+
+	if (unlikely(nonblocking_pool.initialized == 0)) {
+		if (flags & GRND_NONBLOCK)
+			return -EAGAIN;
+		wait_event_interruptible(urandom_init_wait,
+					 nonblocking_pool.initialized);
+		if (signal_pending(current))
+			return -ERESTARTSYS;
+	}
+	return urandom_read(NULL, buf, count, NULL);
+}
+
 /***************************************************************
  * Random UUID interface
  *

drivers/md/md.c

@@ -6212,7 +6212,7 @@ static int update_array_info(struct mddev *mddev, mdu_array_info_t *info)
 	    mddev->ctime         != info->ctime         ||
 	    mddev->level         != info->level         ||
 /*	    mddev->layout        != info->layout        || */
-	    !mddev->persistent	 != info->not_persistent||
+	    mddev->persistent	 == info->not_persistent||
 	    mddev->chunk_sectors != info->chunk_size >> 9 ||
 	    /* ignore bottom 8 bits of state, and allow SB_BITMAP_PRESENT to change */
 	    ((state^info->state) & 0xfffffe00)

drivers/media/rc/imon.c

@@ -1530,7 +1530,7 @@ static void imon_incoming_packet(struct imon_context *ictx,
 	if (kc == KEY_KEYBOARD && !ictx->release_code) {
 		ictx->last_keycode = kc;
 		if (!nomouse) {
-			ictx->pad_mouse = ~(ictx->pad_mouse) & 0x1;
+			ictx->pad_mouse = !ictx->pad_mouse;
 			dev_dbg(dev, "toggling to %s mode\n",
 				ictx->pad_mouse ? "mouse" : "keyboard");
 			spin_unlock_irqrestore(&ictx->kc_lock, flags);

drivers/mfd/cros_ec_dev.c

@@ -67,7 +67,7 @@ static int ec_get_version(struct cros_ec_device *ec, char *str, int maxlen)
 	}
 	if (resp.current_image >= ARRAY_SIZE(current_image_name))
 		resp.current_image = 3; /* invalid */
-	snprintf(str, maxlen, "%s\n%s\n%s\n\%s\n", CROS_EC_DEV_VERSION,
+	snprintf(str, maxlen, "%s\n%s\n%s\n%s\n", CROS_EC_DEV_VERSION,
 		 resp.version_string_ro, resp.version_string_rw,
 		 current_image_name[resp.current_image]);
 

drivers/mfd/cros_ec_lightbar.c

@@ -244,7 +244,7 @@ static ssize_t store_rgb(struct device *dev, struct device_attribute *attr,
 	return (ok && i == 0) ? count : -EINVAL;
 }
 
-static const char const *seqname[] = {
+static const char *seqname[] = {
 	"ERROR", "S5", "S3", "S0", "S5S3", "S3S0",
 	"S0S3", "S3S5", "STOP", "RUN", "PULSE", "TEST", "KONAMI",
 };

drivers/net/wireless-3.8/mwifiex/main.c

@@ -537,21 +537,6 @@ static void mwifiex_fw_dpc(const struct firmware *firmware, void *context)
 		goto err_add_intf;
 	}
 
-	/* Create AP interface by default */
-	if (!mwifiex_add_virtual_intf(adapter->wiphy, "uap%d",
-				      NL80211_IFTYPE_AP, NULL, NULL)) {
-		mwifiex_dbg(adapter, ERROR,
-			    "cannot create default AP interface\n");
-		goto err_add_intf;
-	}
-
-	/* Create P2P interface by default */
-	if (!mwifiex_add_virtual_intf(adapter->wiphy, "p2p%d",
-				      NL80211_IFTYPE_P2P_CLIENT, NULL, NULL)) {
-		mwifiex_dbg(adapter, ERROR,
-			    "cannot create default P2P interface\n");
-		goto err_add_intf;
-	}
 	rtnl_unlock();
 
 	mwifiex_drv_get_driver_version(adapter, fmt, sizeof(fmt) - 1);

drivers/net/wireless-3.8/mwifiex/sdio.h

@@ -30,9 +30,9 @@
 #include "main.h"
 
 #define SD8786_DEFAULT_FW_NAME "mrvl/sd8786_uapsta.bin"
-#define SD8787_DEFAULT_FW_NAME "mrvl/sd8787_uapsta.bin"
+#define SD8787_DEFAULT_FW_NAME "mrvl/sd8787_uapsta_cros.bin"
-#define SD8797_DEFAULT_FW_NAME "mrvl/sd8797_uapsta.bin"
+#define SD8797_DEFAULT_FW_NAME "mrvl/sd8797_uapsta_cros.bin"
-#define SD8897_DEFAULT_FW_NAME "mrvl/sd8897_uapsta.bin"
+#define SD8897_DEFAULT_FW_NAME "mrvl/sd8897_uapsta_cros.bin"
 
 #define BLOCK_MODE	1
 #define BYTE_MODE	0

drivers/net/wireless-3.8/zd1201.c

@@ -309,7 +309,6 @@ static void zd1201_usbrx(struct urb *urb)
 	if (data[urb->actual_length-1] == ZD1201_PACKET_RXDATA) {
 		int datalen = urb->actual_length-1;
 		unsigned short len, fc, seq;
-		struct hlist_node *node;
 
 		len = ntohs(*(__be16 *)&data[datalen-2]);
 		if (len>datalen)
@@ -362,7 +361,7 @@ static void zd1201_usbrx(struct urb *urb)
 				hlist_add_head(&frag->fnode, &zd->fraglist);
 				goto resubmit;
 			}
-			hlist_for_each_entry(frag, node, &zd->fraglist, fnode)
+			hlist_for_each_entry(frag, &zd->fraglist, fnode)
 				if (frag->seq == (seq&IEEE80211_SCTL_SEQ))
 					break;
 			if (!frag)
@@ -1831,14 +1830,14 @@ err_zd:
 static void zd1201_disconnect(struct usb_interface *interface)
 {
 	struct zd1201 *zd = usb_get_intfdata(interface);
-	struct hlist_node *node, *node2;
+	struct hlist_node *node2;
 	struct zd1201_frag *frag;
 
 	if (!zd)
 		return;
 	usb_set_intfdata(interface, NULL);
 
-	hlist_for_each_entry_safe(frag, node, node2, &zd->fraglist, fnode) {
+	hlist_for_each_entry_safe(frag, node2, &zd->fraglist, fnode) {
 		hlist_del_init(&frag->fnode);
 		kfree_skb(frag->skb);
 		kfree(frag);

drivers/staging/iio/light/isl29018.c

@@ -77,7 +77,7 @@
 #define CONT_MODE_IR			2
 #define CONT_MODE_PROX			3
 
-static const char const *isl29018_cont_modes[] = {
+static const char *isl29018_cont_modes[] = {
 	"once",
 	"als",
 	"ir",

drivers/staging/wlan-ng/prism2fw.c

@@ -767,30 +767,35 @@ static int plugimage(struct imgchunk *fchunk, unsigned int nfchunks,
 static int read_cardpda(struct pda *pda, wlandevice_t *wlandev)
 {
 	int result = 0;
-	struct p80211msg_p2req_readpda msg;
+	struct p80211msg_p2req_readpda *msg;
+
+	msg = kzalloc(sizeof(*msg), GFP_KERNEL);
+	if (!msg)
+		return -ENOMEM;
 
 	/* set up the msg */
-	msg.msgcode = DIDmsg_p2req_readpda;
+	msg->msgcode = DIDmsg_p2req_readpda;
-	msg.msglen = sizeof(msg);
+	msg->msglen = sizeof(msg);
-	strcpy(msg.devname, wlandev->name);
+	strcpy(msg->devname, wlandev->name);
-	msg.pda.did = DIDmsg_p2req_readpda_pda;
+	msg->pda.did = DIDmsg_p2req_readpda_pda;
-	msg.pda.len = HFA384x_PDA_LEN_MAX;
+	msg->pda.len = HFA384x_PDA_LEN_MAX;
-	msg.pda.status = P80211ENUM_msgitem_status_no_value;
+	msg->pda.status = P80211ENUM_msgitem_status_no_value;
-	msg.resultcode.did = DIDmsg_p2req_readpda_resultcode;
+	msg->resultcode.did = DIDmsg_p2req_readpda_resultcode;
-	msg.resultcode.len = sizeof(u32);
+	msg->resultcode.len = sizeof(u32);
-	msg.resultcode.status = P80211ENUM_msgitem_status_no_value;
+	msg->resultcode.status = P80211ENUM_msgitem_status_no_value;
 
-	if (prism2mgmt_readpda(wlandev, &msg) != 0) {
+	if (prism2mgmt_readpda(wlandev, msg) != 0) {
 		/* prism2mgmt_readpda prints an errno if appropriate */
 		result = -1;
-	} else if (msg.resultcode.data == P80211ENUM_resultcode_success) {
+	} else if (msg->resultcode.data == P80211ENUM_resultcode_success) {
-		memcpy(pda->buf, msg.pda.data, HFA384x_PDA_LEN_MAX);
+		memcpy(pda->buf, msg->pda.data, HFA384x_PDA_LEN_MAX);
 		result = mkpdrlist(pda);
 	} else {
 		/* resultcode must've been something other than success */
 		result = -1;
 	}
 
+	kfree(msg);
 	return result;
 }
 

drivers/thermal/tegra_soctherm.c

@@ -1406,7 +1406,7 @@ static int soctherm_init_platform_data(struct platform_device *pdev)
 		therm = &plat_data->therm[tsensor2therm_map[i]];
 		s = &plat_data->sensor_data[i];
 		s->sensor_enable = s->zone_enable;
-		s->sensor_enable = s->sensor_enable ?: therm->zone_enable;
+		s->sensor_enable = s->sensor_enable ? s->sensor_enable : therm->zone_enable;
 	}
 
 	/* Pdiv */

drivers/video/fbmon.c

@@ -1129,7 +1129,7 @@ void fb_edid_add_monspecs(unsigned char *edid, struct fb_monspecs *specs)
 
 	for (i = 0; i < (128 - edid[2]) / DETAILED_TIMING_DESCRIPTION_SIZE;
 	     i++, block += DETAILED_TIMING_DESCRIPTION_SIZE)
-		if (PIXEL_CLOCK)
+		if (PIXEL_CLOCK != 0)
 			edt[num++] = block - edid;
 
 	/* Yikes, EDID data is totally useless */

fs/configfs/dir.c

@@ -387,7 +387,7 @@ static void remove_dir(struct dentry * d)
 	if (d->d_inode)
 		simple_rmdir(parent->d_inode,d);
 
-	pr_debug(" o %s removing done (%d)\n",d->d_name.name, d->d_count);
+	pr_debug(" o %s removing done (%d)\n",d->d_name.name, d->d_lockref.count);
 
 	dput(parent);
 }

fs/exec.c

@@ -1024,15 +1024,14 @@ killed:
 	return -EAGAIN;
 }
 
-char *get_task_comm(char *buf, struct task_struct *tsk)
+char *__get_task_comm(char *buf, size_t buf_size, struct task_struct *tsk)
 {
-	/* buf must be at least sizeof(tsk->comm) in size */
 	task_lock(tsk);
-	strncpy(buf, tsk->comm, sizeof(tsk->comm));
+	strncpy(buf, tsk->comm, buf_size);
 	task_unlock(tsk);
 	return buf;
 }
-EXPORT_SYMBOL_GPL(get_task_comm);
+EXPORT_SYMBOL_GPL(__get_task_comm);
 
 /*
  * These functions flushes out all traces of the currently running executable

fs/hfsplus/xattr.c

@@ -241,7 +241,7 @@ static int copy_name(char *buffer, const char *xattr_name, int name_len)
 	int offset = 0;
 
 	if (is_osx_xattr(xattr_name)) {
-		strncpy(buffer, XATTR_MAC_OSX_PREFIX, XATTR_MAC_OSX_PREFIX_LEN);
+		memcpy(buffer, XATTR_MAC_OSX_PREFIX, XATTR_MAC_OSX_PREFIX_LEN);
 		offset += XATTR_MAC_OSX_PREFIX_LEN;
 		len += XATTR_MAC_OSX_PREFIX_LEN;
 	}

fs/nfs/client.c

@@ -1373,27 +1373,29 @@ static int nfs_volume_list_show(struct seq_file *m, void *v)
 {
 	struct nfs_server *server;
 	struct nfs_client *clp;
-	char dev[8], fsid[17];
+	char dev[13];	// 8 for 2^24, 1 for ':', 3 for 2^8, 1 for '\0'
+	char fsid[34];	// 2 * 16 for %llx, 1 for ':', 1 for '\0'
 	struct nfs_net *nn = net_generic(m->private, nfs_net_id);
 
 	/* display header on line 1 */
 	if (v == &nn->nfs_volume_list) {
-		seq_puts(m, "NV SERVER   PORT DEV     FSID              FSC\n");
+		seq_puts(m, "NV SERVER   PORT DEV          FSID"
+			    "                              FSC\n");
 		return 0;
 	}
 	/* display one transport per line on subsequent lines */
 	server = list_entry(v, struct nfs_server, master_link);
 	clp = server->nfs_client;
 
-	snprintf(dev, 8, "%u:%u",
+	snprintf(dev, sizeof(dev), "%u:%u",
 		 MAJOR(server->s_dev), MINOR(server->s_dev));
 
-	snprintf(fsid, 17, "%llx:%llx",
+	snprintf(fsid, sizeof(fsid), "%llx:%llx",
 		 (unsigned long long) server->fsid.major,
 		 (unsigned long long) server->fsid.minor);
 
 	rcu_read_lock();
-	seq_printf(m, "v%u %s %s %-7s %-17s %s\n",
+	seq_printf(m, "v%u %s %s %-12s %-33s %s\n",
 		   clp->rpc_ops->version,
 		   rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_HEX_ADDR),
 		   rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_HEX_PORT),

include/linux/compiler-gcc.h

@@ -5,9 +5,9 @@
 /*
  * Common definitions for all gcc versions go here.
  */
-#define GCC_VERSION (__GNUC__ * 10000 \
+#define GCC_VERSION (__GNUC__ * 10000		\
-		   + __GNUC_MINOR__ * 100 \
+		     + __GNUC_MINOR__ * 100	\
-		   + __GNUC_PATCHLEVEL__)
+		     + __GNUC_PATCHLEVEL__)
 
 
 /* Optimization barrier */
@@ -32,51 +32,63 @@
  * the inline assembly constraint from =g to =r, in this particular
  * case either is valid.
  */
-#define RELOC_HIDE(ptr, off)					\
+#define RELOC_HIDE(ptr, off)						\
-  ({ unsigned long __ptr;					\
+({									\
-    __asm__ ("" : "=r"(__ptr) : "0"(ptr));		\
+	unsigned long __ptr;						\
-    (typeof(ptr)) (__ptr + (off)); })
+	__asm__ ("" : "=r"(__ptr) : "0"(ptr));				\
+	(typeof(ptr)) (__ptr + (off));					\
+})
+
+/* Make the optimizer believe the variable can be manipulated arbitrarily. */
+#define OPTIMIZER_HIDE_VAR(var)						\
+	__asm__ ("" : "=r" (var) : "0" (var))
 
 #ifdef __CHECKER__
-#define __must_be_array(arr) 0
+#define __must_be_array(a)	0
 #else
 /* &a[0] degrades to a pointer: a different type from an array */
-#define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))
+#define __must_be_array(a)	BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))
 #endif
 
 /*
  * Force always-inline if the user requests it so via the .config,
  * or if gcc is too old:
  */
-#if !defined(CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING) || \
+#if !defined(CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING) ||		\
     !defined(CONFIG_OPTIMIZE_INLINING) || (__GNUC__ < 4)
-# define inline		inline		__attribute__((always_inline)) notrace
+#define inline		inline		__attribute__((always_inline)) notrace
-# define __inline__	__inline__	__attribute__((always_inline)) notrace
+#define __inline__	__inline__	__attribute__((always_inline)) notrace
-# define __inline	__inline	__attribute__((always_inline)) notrace
+#define __inline	__inline	__attribute__((always_inline)) notrace
 #else
 /* A lot of inline functions can cause havoc with function tracing */
-# define inline		inline		notrace
+#define inline		inline		notrace
-# define __inline__	__inline__	notrace
+#define __inline__	__inline__	notrace
-# define __inline	__inline	notrace
+#define __inline	__inline	notrace
 #endif
 
-#define __deprecated			__attribute__((deprecated))
+#define __always_inline	inline __attribute__((always_inline))
-#define __packed			__attribute__((packed))
+#define  noinline	__attribute__((noinline))
-#define __weak				__attribute__((weak))
+
+#define __deprecated	__attribute__((deprecated))
+#define __packed	__attribute__((packed))
+#define __weak		__attribute__((weak))
+#define __alias(symbol)	__attribute__((alias(#symbol)))
 
 /*
- * it doesn't make sense on ARM (currently the only user of __naked) to trace
+ * it doesn't make sense on ARM (currently the only user of __naked)
- * naked functions because then mcount is called without stack and frame pointer
+ * to trace naked functions because then mcount is called without
- * being set up and there is no chance to restore the lr register to the value
+ * stack and frame pointer being set up and there is no chance to
- * before mcount was called.
+ * restore the lr register to the value before mcount was called.
  *
- * The asm() bodies of naked functions often depend on standard calling conventions,
+ * The asm() bodies of naked functions often depend on standard calling
- * therefore they must be noinline and noclone.  GCC 4.[56] currently fail to enforce
+ * conventions, therefore they must be noinline and noclone.
- * this, so we must do so ourselves.  See GCC PR44290.
+ *
+ * GCC 4.[56] currently fail to enforce this, so we must do so ourselves.
+ * See GCC PR44290.
  */
-#define __naked				__attribute__((naked)) noinline __noclone notrace
+#define __naked		__attribute__((naked)) noinline __noclone notrace
 
-#define __noreturn			__attribute__((noreturn))
+#define __noreturn	__attribute__((noreturn))
 
 /*
  * From the GCC manual:
@@ -88,19 +100,149 @@
  * would be.
  * [...]
  */
-#define __pure				__attribute__((pure))
+#define __pure			__attribute__((pure))
-#define __aligned(x)			__attribute__((aligned(x)))
+#define __aligned(x)		__attribute__((aligned(x)))
-#define __printf(a, b)			__attribute__((format(printf, a, b)))
+#define __printf(a, b)		__attribute__((format(printf, a, b)))
-#define __scanf(a, b)			__attribute__((format(scanf, a, b)))
+#define __scanf(a, b)		__attribute__((format(scanf, a, b)))
-#define  noinline			__attribute__((noinline))
+#define __attribute_const__	__attribute__((__const__))
-#define __attribute_const__		__attribute__((__const__))
+#define __maybe_unused		__attribute__((unused))
-#define __maybe_unused			__attribute__((unused))
+#define __always_unused		__attribute__((unused))
-#define __always_unused			__attribute__((unused))
 
-#define __gcc_header(x) #x
+/* gcc version specific checks */
-#define _gcc_header(x) __gcc_header(linux/compiler-gcc##x.h)
+
-#define gcc_header(x) _gcc_header(x)
+#if GCC_VERSION < 30200
-#include gcc_header(__GNUC__)
+# error Sorry, your compiler is too old - please upgrade it.
+#endif
+
+#if GCC_VERSION < 30300
+# define __used			__attribute__((__unused__))
+#else
+# define __used			__attribute__((__used__))
+#endif
+
+#ifdef CONFIG_GCOV_KERNEL
+# if GCC_VERSION < 30400
+#   error "GCOV profiling support for gcc versions below 3.4 not included"
+# endif /* __GNUC_MINOR__ */
+#endif /* CONFIG_GCOV_KERNEL */
+
+#if GCC_VERSION >= 30400
+#define __must_check		__attribute__((warn_unused_result))
+#endif
+
+#if GCC_VERSION >= 40000
+
+/* GCC 4.1.[01] miscompiles __weak */
+#ifdef __KERNEL__
+# if GCC_VERSION >= 40100 &&  GCC_VERSION <= 40101
+#  error Your version of gcc miscompiles the __weak directive
+# endif
+#endif
+
+#define __used			__attribute__((__used__))
+#define __compiler_offsetof(a, b)					\
+	__builtin_offsetof(a, b)
+
+#if GCC_VERSION >= 40100 && GCC_VERSION < 40600
+# define __compiletime_object_size(obj) __builtin_object_size(obj, 0)
+#endif
+
+#if GCC_VERSION >= 40300
+/* Mark functions as cold. gcc will assume any path leading to a call
+ * to them will be unlikely.  This means a lot of manual unlikely()s
+ * are unnecessary now for any paths leading to the usual suspects
+ * like BUG(), printk(), panic() etc. [but let's keep them for now for
+ * older compilers]
+ *
+ * Early snapshots of gcc 4.3 don't support this and we can't detect this
+ * in the preprocessor, but we can live with this because they're unreleased.
+ * Maketime probing would be overkill here.
+ *
+ * gcc also has a __attribute__((__hot__)) to move hot functions into
+ * a special section, but I don't see any sense in this right now in
+ * the kernel context
+ */
+#define __cold			__attribute__((__cold__))
+
+#define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__)
+
+#ifndef __CHECKER__
+# define __compiletime_warning(message) __attribute__((warning(message)))
+# define __compiletime_error(message) __attribute__((error(message)))
+#endif /* __CHECKER__ */
+#endif /* GCC_VERSION >= 40300 */
+
+#if GCC_VERSION >= 40500
+/*
+ * Mark a position in code as unreachable.  This can be used to
+ * suppress control flow warnings after asm blocks that transfer
+ * control elsewhere.
+ *
+ * Early snapshots of gcc 4.5 don't support this and we can't detect
+ * this in the preprocessor, but we can live with this because they're
+ * unreleased.  Really, we need to have autoconf for the kernel.
+ */
+#define unreachable() __builtin_unreachable()
+
+/* Mark a function definition as prohibited from being cloned. */
+#define __noclone	__attribute__((__noclone__, __optimize__("no-tracer")))
+
+#endif /* GCC_VERSION >= 40500 */
+
+#if GCC_VERSION >= 40600
+/*
+ * When used with Link Time Optimization, gcc can optimize away C functions or
+ * variables which are referenced only from assembly code.  __visible tells the
+ * optimizer that something else uses this function or variable, thus preventing
+ * this.
+ */
+#define __visible	__attribute__((externally_visible))
+#endif
+
+#if GCC_VERSION >= 40900 && !defined(__CHECKER__)
+/*
+ * __assume_aligned(n, k): Tell the optimizer that the returned
+ * pointer can be assumed to be k modulo n. The second argument is
+ * optional (default 0), so we use a variadic macro to make the
+ * shorthand.
+ *
+ * Beware: Do not apply this to functions which may return
+ * ERR_PTRs. Also, it is probably unwise to apply it to functions
+ * returning extra information in the low bits (but in that case the
+ * compiler should see some alignment anyway, when the return value is
+ * massaged by 'flags = ptr & 3; ptr &= ~3;').
+ */
+#define __assume_aligned(a, ...) __attribute__((__assume_aligned__(a, ## __VA_ARGS__)))
+#endif
+
+/*
+ * GCC 'asm goto' miscompiles certain code sequences:
+ *
+ *   http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58670
+ *
+ * Work it around via a compiler barrier quirk suggested by Jakub Jelinek.
+ *
+ * (asm goto is automatically volatile - the naming reflects this.)
+ */
+#define asm_volatile_goto(x...)	do { asm goto(x); asm (""); } while (0)
+
+#ifdef CONFIG_ARCH_USE_BUILTIN_BSWAP
+#if GCC_VERSION >= 40400
+#define __HAVE_BUILTIN_BSWAP32__
+#define __HAVE_BUILTIN_BSWAP64__
+#endif
+#if GCC_VERSION >= 40800
+#define __HAVE_BUILTIN_BSWAP16__
+#endif
+#endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP */
+
+#if GCC_VERSION >= 50000
+#define KASAN_ABI_VERSION 4
+#elif GCC_VERSION >= 40902
+#define KASAN_ABI_VERSION 3
+#endif
+
+#endif	/* gcc version >= 40000 specific checks */
 
 #if !defined(__noclone)
 #define __noclone	/* not needed */
@@ -111,5 +253,3 @@
  * code
  */
 #define uninitialized_var(x) x = x
-
-#define __always_inline		inline __attribute__((always_inline))

include/linux/compiler-gcc3.h

@@ -1,23 +0,0 @@
-#ifndef __LINUX_COMPILER_H
-#error "Please don't include <linux/compiler-gcc3.h> directly, include <linux/compiler.h> instead."
-#endif
-
-#if GCC_VERSION < 30200
-# error Sorry, your compiler is too old - please upgrade it.
-#endif
-
-#if GCC_VERSION >= 30300
-# define __used			__attribute__((__used__))
-#else
-# define __used			__attribute__((__unused__))
-#endif
-
-#if GCC_VERSION >= 30400
-#define __must_check		__attribute__((warn_unused_result))
-#endif
-
-#ifdef CONFIG_GCOV_KERNEL
-# if GCC_VERSION < 30400
-#   error "GCOV profiling support for gcc versions below 3.4 not included"
-# endif /* __GNUC_MINOR__ */
-#endif /* CONFIG_GCOV_KERNEL */

include/linux/compiler-gcc4.h

@@ -1,92 +0,0 @@
-#ifndef __LINUX_COMPILER_H
-#error "Please don't include <linux/compiler-gcc4.h> directly, include <linux/compiler.h> instead."
-#endif
-
-/* GCC 4.1.[01] miscompiles __weak */
-#ifdef __KERNEL__
-# if GCC_VERSION >= 40100 &&  GCC_VERSION <= 40101
-#  error Your version of gcc miscompiles the __weak directive
-# endif
-#endif
-
-#define __used			__attribute__((__used__))
-#define __must_check 		__attribute__((warn_unused_result))
-#define __compiler_offsetof(a,b) __builtin_offsetof(a,b)
-
-#if GCC_VERSION >= 40100 && GCC_VERSION < 40600
-# define __compiletime_object_size(obj) __builtin_object_size(obj, 0)
-#endif
-
-#if GCC_VERSION >= 40300
-/* Mark functions as cold. gcc will assume any path leading to a call
-   to them will be unlikely.  This means a lot of manual unlikely()s
-   are unnecessary now for any paths leading to the usual suspects
-   like BUG(), printk(), panic() etc. [but let's keep them for now for
-   older compilers]
-
-   Early snapshots of gcc 4.3 don't support this and we can't detect this
-   in the preprocessor, but we can live with this because they're unreleased.
-   Maketime probing would be overkill here.
-
-   gcc also has a __attribute__((__hot__)) to move hot functions into
-   a special section, but I don't see any sense in this right now in
-   the kernel context */
-#define __cold			__attribute__((__cold__))
-
-#define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__)
-
-#ifndef __CHECKER__
-# define __compiletime_warning(message) __attribute__((warning(message)))
-# define __compiletime_error(message) __attribute__((error(message)))
-#endif /* __CHECKER__ */
-#endif /* GCC_VERSION >= 40300 */
-
-#if GCC_VERSION >= 40500
-/*
- * Mark a position in code as unreachable.  This can be used to
- * suppress control flow warnings after asm blocks that transfer
- * control elsewhere.
- *
- * Early snapshots of gcc 4.5 don't support this and we can't detect
- * this in the preprocessor, but we can live with this because they're
- * unreleased.  Really, we need to have autoconf for the kernel.
- */
-#define unreachable() __builtin_unreachable()
-
-/* Mark a function definition as prohibited from being cloned. */
-#define __noclone	__attribute__((__noclone__))
-
-#endif /* GCC_VERSION >= 40500 */
-
-#if GCC_VERSION >= 40600
-/*
- * Tell the optimizer that something else uses this function or variable.
- */
-#define __visible __attribute__((externally_visible))
-#endif
-
-/*
- * GCC 'asm goto' miscompiles certain code sequences:
- *
- *   http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58670
- *
- * Work it around via a compiler barrier quirk suggested by Jakub Jelinek.
- * Fixed in GCC 4.8.2 and later versions.
- *
- * (asm goto is automatically volatile - the naming reflects this.)
- */
-#if GCC_VERSION <= 40801
-# define asm_volatile_goto(x...)	do { asm goto(x); asm (""); } while (0)
-#else
-# define asm_volatile_goto(x...)	do { asm goto(x); } while (0)
-#endif
-
-#ifdef CONFIG_ARCH_USE_BUILTIN_BSWAP
-#if GCC_VERSION >= 40400
-#define __HAVE_BUILTIN_BSWAP32__
-#define __HAVE_BUILTIN_BSWAP64__
-#endif
-#if GCC_VERSION >= 40800 || (defined(__powerpc__) && GCC_VERSION >= 40600)
-#define __HAVE_BUILTIN_BSWAP16__
-#endif
-#endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP */

include/linux/elevator.h

@@ -95,7 +95,7 @@ struct elevator_type
 	struct module *elevator_owner;
 
 	/* managed by elevator core */
-	char icq_cache_name[ELV_NAME_MAX + 5];	/* elvname + "_io_cq" */
+	char icq_cache_name[ELV_NAME_MAX + 6];	/* elvname + "_io_cq" */
 	struct list_head list;
 };
 

include/linux/log2.h

@@ -15,12 +15,6 @@
 #include <linux/types.h>
 #include <linux/bitops.h>
 
-/*
- * deal with unrepresentable constant logarithms
- */
-extern __attribute__((const, noreturn))
-int ____ilog2_NaN(void);
-
 /*
  * non-constant log of base 2 calculators
  * - the arch may override these in asm/bitops.h if they can be implemented
@@ -43,19 +37,23 @@ int __ilog2_u64(u64 n)
 }
 #endif
 
-/*
+/**
- *  Determine whether some value is a power of two, where zero is
+ * is_power_of_2() - check if a value is a power of two
+ * @n: the value to check
+ *
+ * Determine whether some value is a power of two, where zero is
  * *not* considered a power of two.
+ * Return: true if @n is a power of 2, otherwise false.
  */
-
 static inline __attribute__((const))
 bool is_power_of_2(unsigned long n)
 {
 	return (n != 0 && ((n & (n - 1)) == 0));
 }
 
-/*
+/**
- * round up to nearest power of two
+ * __roundup_pow_of_two() - round up to nearest power of two
+ * @n: value to round up
  */
 static inline __attribute__((const))
 unsigned long __roundup_pow_of_two(unsigned long n)
@@ -63,8 +61,9 @@ unsigned long __roundup_pow_of_two(unsigned long n)
 	return 1UL << fls_long(n - 1);
 }
 
-/*
+/**
- * round down to nearest power of two
+ * __rounddown_pow_of_two() - round down to nearest power of two
+ * @n: value to round down
  */
 static inline __attribute__((const))
 unsigned long __rounddown_pow_of_two(unsigned long n)
@@ -73,19 +72,16 @@ unsigned long __rounddown_pow_of_two(unsigned long n)
 }
 
 /**
- * ilog2 - log of base 2 of 32-bit or a 64-bit unsigned value
+ * const_ilog2 - log base 2 of 32-bit or a 64-bit constant unsigned value
- * @n - parameter
+ * @n: parameter
  *
- * constant-capable log of base 2 calculation
+ * Use this where sparse expects a true constant expression, e.g. for array
- * - this can be used to initialise global variables from constant data, hence
+ * indices.
- *   the massive ternary operator construction
- *
- * selects the appropriately-sized optimised version depending on sizeof(n)
  */
-#define ilog2(n)				\
+#define const_ilog2(n)				\
 (						\
 	__builtin_constant_p(n) ? (		\
-		(n) < 1 ? ____ilog2_NaN() :	\
+		(n) < 2 ? 0 :			\
 		(n) & (1ULL << 63) ? 63 :	\
 		(n) & (1ULL << 62) ? 62 :	\
 		(n) & (1ULL << 61) ? 61 :	\
@@ -148,18 +144,31 @@ unsigned long __rounddown_pow_of_two(unsigned long n)
 		(n) & (1ULL <<  4) ?  4 :	\
 		(n) & (1ULL <<  3) ?  3 :	\
 		(n) & (1ULL <<  2) ?  2 :	\
-		(n) & (1ULL <<  1) ?  1 :	\
+		1) :				\
-		(n) & (1ULL <<  0) ?  0 :	\
+	-1)
-		____ilog2_NaN()			\
+
-				   ) :		\
+/**
-	(sizeof(n) <= 4) ?			\
+ * ilog2 - log base 2 of 32-bit or a 64-bit unsigned value
-	__ilog2_u32(n) :			\
+ * @n: parameter
-	__ilog2_u64(n)				\
+ *
+ * constant-capable log of base 2 calculation
+ * - this can be used to initialise global variables from constant data, hence
+ * the massive ternary operator construction
+ *
+ * selects the appropriately-sized optimised version depending on sizeof(n)
+ */
+#define ilog2(n) \
+( \
+	__builtin_constant_p(n) ?	\
+	const_ilog2(n) :		\
+	(sizeof(n) <= 4) ?		\
+	__ilog2_u32(n) :		\
+	__ilog2_u64(n)			\
  )
 
 /**
  * roundup_pow_of_two - round the given value up to nearest power of two
- * @n - parameter
+ * @n: parameter
  *
  * round the given value up to the nearest power of two
  * - the result is undefined when n == 0
@@ -176,7 +185,7 @@ unsigned long __rounddown_pow_of_two(unsigned long n)
 
 /**
  * rounddown_pow_of_two - round the given value down to nearest power of two
- * @n - parameter
+ * @n: parameter
  *
  * round the given value down to the nearest power of two
  * - the result is undefined when n == 0
@@ -189,6 +198,12 @@ unsigned long __rounddown_pow_of_two(unsigned long n)
 	__rounddown_pow_of_two(n)		\
  )
 
+static inline __attribute_const__
+int __order_base_2(unsigned long n)
+{
+	return n > 1 ? ilog2(n - 1) + 1 : 0;
+}
+
 /**
  * order_base_2 - calculate the (rounded up) base 2 order of the argument
  * @n: parameter
@@ -202,7 +217,11 @@ unsigned long __rounddown_pow_of_two(unsigned long n)
  *  ob2(5) = 3
  *  ... and so on.
  */
-
+#define order_base_2(n)				\
-#define order_base_2(n) ilog2(roundup_pow_of_two(n))
+(						\
-
+	__builtin_constant_p(n) ? (		\
+		((n) == 0 || (n) == 1) ? 0 :	\
+		ilog2((n) - 1) + 1) :		\
+	__order_base_2(n)			\
+)
 #endif /* _LINUX_LOG2_H */

include/linux/random.h

@@ -29,6 +29,7 @@ unsigned long randomize_range(unsigned long start, unsigned long end, unsigned l
 u32 prandom_u32(void);
 void prandom_bytes(void *buf, int nbytes);
 void prandom_seed(u32 seed);
+void prandom_reseed_late(void);
 
 u32 prandom_u32_state(struct rnd_state *);
 void prandom_bytes_state(struct rnd_state *state, void *buf, int nbytes);
@@ -50,9 +51,9 @@ static inline void prandom_seed_state(struct rnd_state *state, u64 seed)
 {
 	u32 i = (seed >> 32) ^ (seed << 10) ^ seed;
 
-	state->s1 = __seed(i, 1);
+	state->s1 = __seed(i, 2);
-	state->s2 = __seed(i, 7);
+	state->s2 = __seed(i, 8);
-	state->s3 = __seed(i, 15);
+	state->s3 = __seed(i, 16);
 }
 
 #ifdef CONFIG_ARCH_RANDOM

include/linux/sched.h

@@ -2151,7 +2151,11 @@ struct task_struct *fork_idle(int);
 extern pid_t kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
 
 extern void set_task_comm(struct task_struct *tsk, char *from);
-extern char *get_task_comm(char *to, struct task_struct *tsk);
+extern char *__get_task_comm(char *to, size_t len, struct task_struct *tsk);
+#define get_task_comm(buf, tsk) ({			\
+	BUILD_BUG_ON(sizeof(buf) != TASK_COMM_LEN);	\
+	__get_task_comm(buf, sizeof(buf), tsk);		\
+})
 
 #ifdef CONFIG_SMP
 void scheduler_ipi(void);

include/linux/syscalls.h

@@ -848,4 +848,7 @@ asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type,
 asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags);
 asmlinkage long sys_seccomp(unsigned int op, unsigned int flags,
 			    const char __user *uargs);
+asmlinkage long sys_getrandom(char __user *buf, size_t count,
+			      unsigned int flags);
+
 #endif

include/uapi/asm-generic/unistd.h

@@ -702,9 +702,11 @@ __SYSCALL(__NR_renameat2, sys_renameat2)
  */
 #define __NR_seccomp 277
 __SYSCALL(__NR_seccomp, sys_seccomp)
+#define __NR_getrandom 278
+__SYSCALL(__NR_getrandom, sys_getrandom)
 
 #undef __NR_syscalls
-#define __NR_syscalls 278
+#define __NR_syscalls 279
 
 /*
  * All syscalls below here should go away really,

include/uapi/linux/random.h

@@ -44,6 +44,15 @@ struct rnd_state {
 	__u32 s1, s2, s3;
 };
 
+/*
+ * Flags for getrandom(2)
+ *
+ * GRND_NONBLOCK	Don't block and return EAGAIN instead
+ * GRND_RANDOM		Use the /dev/random pool instead of /dev/urandom
+ */
+#define GRND_NONBLOCK	0x0001
+#define GRND_RANDOM	0x0002
+
 /* Exported functions */
 
 

lib/decompress_unlzo.c

@@ -51,7 +51,7 @@ static const unsigned char lzop_magic[] = {
 #define HEADER_SIZE_MIN       (9 + 7     + 4 + 8     + 1       + 4)
 #define HEADER_SIZE_MAX       (9 + 7 + 1 + 8 + 8 + 4 + 1 + 255 + 4)
 
-STATIC inline int INIT parse_header(u8 *input, int *skip, int in_len)
+static inline int INIT parse_header(u8 *input, int *skip, int in_len)
 {
 	int l;
 	u8 *parse = input;

lib/random32.c

@@ -38,6 +38,7 @@
 #include <linux/export.h>
 #include <linux/jiffies.h>
 #include <linux/random.h>
+#include <linux/timer.h>
 
 static DEFINE_PER_CPU(struct rnd_state, net_rand_state);
 
@@ -141,7 +142,8 @@ void prandom_seed(u32 entropy)
 	 */
 	for_each_possible_cpu (i) {
 		struct rnd_state *state = &per_cpu(net_rand_state, i);
-		state->s1 = __seed(state->s1 ^ entropy, 1);
+		state->s1 = __seed(state->s1 ^ entropy, 2);
+		prandom_u32_state(state);
 	}
 }
 EXPORT_SYMBOL(prandom_seed);
@@ -158,9 +160,9 @@ static int __init prandom_init(void)
 		struct rnd_state *state = &per_cpu(net_rand_state,i);
 
 #define LCG(x)	((x) * 69069)	/* super-duper LCG */
-		state->s1 = __seed(LCG(i + jiffies), 1);
+		state->s1 = __seed(LCG(i + jiffies), 2);
-		state->s2 = __seed(LCG(state->s1), 7);
+		state->s2 = __seed(LCG(state->s1), 8);
-		state->s3 = __seed(LCG(state->s2), 15);
+		state->s3 = __seed(LCG(state->s2), 16);
 
 		/* "warm it up" */
 		prandom_u32_state(state);
@@ -174,26 +176,69 @@ static int __init prandom_init(void)
 }
 core_initcall(prandom_init);
 
+static void __prandom_timer(unsigned long dontcare);
+static DEFINE_TIMER(seed_timer, __prandom_timer, 0, 0);
+
+static void __prandom_timer(unsigned long dontcare)
+{
+	u32 entropy;
+
+	get_random_bytes(&entropy, sizeof(entropy));
+	prandom_seed(entropy);
+	/* reseed every ~60 seconds, in [40 .. 80) interval with slack */
+	seed_timer.expires = jiffies + (40 * HZ + (prandom_u32() % (40 * HZ)));
+	add_timer(&seed_timer);
+}
+
+static void prandom_start_seed_timer(void)
+{
+	set_timer_slack(&seed_timer, HZ);
+	seed_timer.expires = jiffies + 40 * HZ;
+	add_timer(&seed_timer);
+}
+
 /*
  *	Generate better values after random number generator
  *	is fully initialized.
  */
-static int __init prandom_reseed(void)
+static void __prandom_reseed(bool late)
 {
 	int i;
+	unsigned long flags;
+	static bool latch = false;
+	static DEFINE_SPINLOCK(lock);
+
+	/* only allow initial seeding (late == false) once */
+	spin_lock_irqsave(&lock, flags);
+	if (latch && !late)
+		goto out;
+	latch = true;
 
 	for_each_possible_cpu(i) {
 		struct rnd_state *state = &per_cpu(net_rand_state,i);
 		u32 seeds[3];
 
 		get_random_bytes(&seeds, sizeof(seeds));
-		state->s1 = __seed(seeds[0], 1);
+		state->s1 = __seed(seeds[0], 2);
-		state->s2 = __seed(seeds[1], 7);
+		state->s2 = __seed(seeds[1], 8);
-		state->s3 = __seed(seeds[2], 15);
+		state->s3 = __seed(seeds[2], 16);
 
 		/* mix it in */
 		prandom_u32_state(state);
 	}
+out:
+	spin_unlock_irqrestore(&lock, flags);
+}
+
+void prandom_reseed_late(void)
+{
+	__prandom_reseed(true);
+}
+
+static int __init prandom_reseed(void)
+{
+	__prandom_reseed(false);
+	prandom_start_seed_timer();
 	return 0;
 }
 late_initcall(prandom_reseed);

mm/rmap.c

@@ -523,7 +523,7 @@ __vma_address(struct page *page, struct vm_area_struct *vma)
 	return vma->vm_start + ((pgoff - vma->vm_pgoff) << PAGE_SHIFT);
 }
 
-inline unsigned long
+static inline unsigned long
 vma_address(struct page *page, struct vm_area_struct *vma)
 {
 	unsigned long address = __vma_address(page, vma);

net/ipv4/ip_vti.c

@@ -338,7 +338,8 @@ static netdev_tx_t vti_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 			   be32_to_cpu(tunnel->parms.o_key), RT_TOS(tos),
 			   RT_SCOPE_UNIVERSE,
 			   IPPROTO_IPIP, 0,
-			   dst, tiph->saddr, 0, 0);
+			   dst, tiph->saddr, 0, 0,
+			   sock_net_uid(dev_net(dev), NULL));
 	rt = ip_route_output_key(dev_net(dev), &fl4);
 	if (IS_ERR(rt)) {
 		dev->stats.tx_carrier_errors++;
@@ -404,7 +405,8 @@ static int vti_tunnel_bind_dev(struct net_device *dev)
 				   be32_to_cpu(tunnel->parms.i_key),
 				   RT_TOS(iph->tos), RT_SCOPE_UNIVERSE,
 				   IPPROTO_IPIP, 0,
-				   iph->daddr, iph->saddr, 0, 0);
+				   iph->daddr, iph->saddr, 0, 0,
+				   sock_net_uid(dev_net(dev), NULL));
 		rt = ip_route_output_key(dev_net(dev), &fl4);
 		if (!IS_ERR(rt)) {
 			tdev = rt->dst.dev;

net/netfilter/nfnetlink_cthelper.c

@@ -83,7 +83,7 @@ nfnl_cthelper_parse_tuple(struct nf_conntrack_tuple *tuple,
 static int
 nfnl_cthelper_from_nlattr(struct nlattr *attr, struct nf_conn *ct)
 {
-	const struct nf_conn_help *help = nfct_help(ct);
+	struct nf_conn_help *help = nfct_help(ct);
 
 	if (attr == NULL)
 		return -EINVAL;
@@ -91,7 +91,7 @@ nfnl_cthelper_from_nlattr(struct nlattr *attr, struct nf_conn *ct)
 	if (help->helper->data_len == 0)
 		return -EINVAL;
 
-	memcpy(&help->data, nla_data(attr), help->helper->data_len);
+	memcpy(help->data, nla_data(attr), help->helper->data_len);
 	return 0;
 }