Merge branch 'master' into for-next

Sync with Linus tree to have 157550ff ("mtd: add GPMI-NAND driver
in the config and Makefile") as I have patch depending on that one.

28 files changed, 459 insertions, 290 deletions

diff --git a/lib/Kconfig b/lib/Kconfig
index abff69d4ff88..d971366b8de2 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -275,7 +275,4 @@ config CORDIC
 	  This option provides an implementation of the CORDIC algorithm;
 	  calculations are in fixed point. Module will be called cordic.
 
-config LLIST
-	bool
-
 endmenu
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 75330bd87565..82928f5ea049 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -248,8 +248,9 @@ config DEFAULT_HUNG_TASK_TIMEOUT
 	  to determine when a task has become non-responsive and should
 	  be considered hung.
 
-	  It can be adjusted at runtime via the kernel.hung_task_timeout
-	  sysctl or by writing a value to /proc/sys/kernel/hung_task_timeout.
+	  It can be adjusted at runtime via the kernel.hung_task_timeout_secs
+	  sysctl or by writing a value to
+	  /proc/sys/kernel/hung_task_timeout_secs.
 
 	  A timeout of 0 disables the check.  The default is two minutes.
 	  Keeping the default should be fine in most cases.
@@ -1070,6 +1071,17 @@ config FAIL_IO_TIMEOUT
 	  Only works with drivers that use the generic timeout handling,
 	  for others it wont do anything.
 
+config FAIL_MMC_REQUEST
+	bool "Fault-injection capability for MMC IO"
+	select DEBUG_FS
+	depends on FAULT_INJECTION && MMC
+	help
+	  Provide fault-injection capability for MMC IO.
+	  This will make the mmc core return data errors. This is
+	  useful to test the error handling in the mmc block device
+	  and to test how the mmc host driver handles retries from
+	  the block device.
+
 config FAULT_INJECTION_DEBUG_FS
 	bool "Debugfs entries for fault-injection capabilities"
 	depends on FAULT_INJECTION && SYSFS && DEBUG_FS
diff --git a/lib/Makefile b/lib/Makefile
index 3f5bc6d903e0..a4da283f5dc0 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -22,7 +22,7 @@ lib-y	+= kobject.o kref.o klist.o
 obj-y += bcd.o div64.o sort.o parser.o halfmd4.o debug_locks.o random32.o \
 	 bust_spinlocks.o hexdump.o kasprintf.o bitmap.o scatterlist.o \
 	 string_helpers.o gcd.o lcm.o list_sort.o uuid.o flex_array.o \
-	 bsearch.o find_last_bit.o find_next_bit.o
+	 bsearch.o find_last_bit.o find_next_bit.o llist.o
 obj-y += kstrtox.o
 obj-$(CONFIG_TEST_KSTRTOX) += test-kstrtox.o
 
@@ -115,8 +115,6 @@ obj-$(CONFIG_CPU_RMAP) += cpu_rmap.o
 
 obj-$(CONFIG_CORDIC) += cordic.o
 
-obj-$(CONFIG_LLIST) += llist.o
-
 hostprogs-y	:= gen_crc32table
 clean-files	:= crc32table.h
 
diff --git a/lib/atomic64.c b/lib/atomic64.c
index e12ae0dd08a8..3975470caf4f 100644
--- a/lib/atomic64.c
+++ b/lib/atomic64.c
@@ -29,11 +29,11 @@
  * Ensure each lock is in a separate cacheline.
  */
 static union {
-	spinlock_t lock;
+	raw_spinlock_t lock;
 	char pad[L1_CACHE_BYTES];
 } atomic64_lock[NR_LOCKS] __cacheline_aligned_in_smp;
 
-static inline spinlock_t *lock_addr(const atomic64_t *v)
+static inline raw_spinlock_t *lock_addr(const atomic64_t *v)
 {
 	unsigned long addr = (unsigned long) v;
 
@@ -45,12 +45,12 @@ static inline spinlock_t *lock_addr(const atomic64_t *v)
 long long atomic64_read(const atomic64_t *v)
 {
 	unsigned long flags;
-	spinlock_t *lock = lock_addr(v);
+	raw_spinlock_t *lock = lock_addr(v);
 	long long val;
 
-	spin_lock_irqsave(lock, flags);
+	raw_spin_lock_irqsave(lock, flags);
 	val = v->counter;
-	spin_unlock_irqrestore(lock, flags);
+	raw_spin_unlock_irqrestore(lock, flags);
 	return val;
 }
 EXPORT_SYMBOL(atomic64_read);
@@ -58,34 +58,34 @@ EXPORT_SYMBOL(atomic64_read);
 void atomic64_set(atomic64_t *v, long long i)
 {
 	unsigned long flags;
-	spinlock_t *lock = lock_addr(v);
+	raw_spinlock_t *lock = lock_addr(v);
 
-	spin_lock_irqsave(lock, flags);
+	raw_spin_lock_irqsave(lock, flags);
 	v->counter = i;
-	spin_unlock_irqrestore(lock, flags);
+	raw_spin_unlock_irqrestore(lock, flags);
 }
 EXPORT_SYMBOL(atomic64_set);
 
 void atomic64_add(long long a, atomic64_t *v)
 {
 	unsigned long flags;
-	spinlock_t *lock = lock_addr(v);
+	raw_spinlock_t *lock = lock_addr(v);
 
-	spin_lock_irqsave(lock, flags);
+	raw_spin_lock_irqsave(lock, flags);
 	v->counter += a;
-	spin_unlock_irqrestore(lock, flags);
+	raw_spin_unlock_irqrestore(lock, flags);
 }
 EXPORT_SYMBOL(atomic64_add);
 
 long long atomic64_add_return(long long a, atomic64_t *v)
 {
 	unsigned long flags;
-	spinlock_t *lock = lock_addr(v);
+	raw_spinlock_t *lock = lock_addr(v);
 	long long val;
 
-	spin_lock_irqsave(lock, flags);
+	raw_spin_lock_irqsave(lock, flags);
 	val = v->counter += a;
-	spin_unlock_irqrestore(lock, flags);
+	raw_spin_unlock_irqrestore(lock, flags);
 	return val;
 }
 EXPORT_SYMBOL(atomic64_add_return);
@@ -93,23 +93,23 @@ EXPORT_SYMBOL(atomic64_add_return);
 void atomic64_sub(long long a, atomic64_t *v)
 {
 	unsigned long flags;
-	spinlock_t *lock = lock_addr(v);
+	raw_spinlock_t *lock = lock_addr(v);
 
-	spin_lock_irqsave(lock, flags);
+	raw_spin_lock_irqsave(lock, flags);
 	v->counter -= a;
-	spin_unlock_irqrestore(lock, flags);
+	raw_spin_unlock_irqrestore(lock, flags);
 }
 EXPORT_SYMBOL(atomic64_sub);
 
 long long atomic64_sub_return(long long a, atomic64_t *v)
 {
 	unsigned long flags;
-	spinlock_t *lock = lock_addr(v);
+	raw_spinlock_t *lock = lock_addr(v);
 	long long val;
 
-	spin_lock_irqsave(lock, flags);
+	raw_spin_lock_irqsave(lock, flags);
 	val = v->counter -= a;
-	spin_unlock_irqrestore(lock, flags);
+	raw_spin_unlock_irqrestore(lock, flags);
 	return val;
 }
 EXPORT_SYMBOL(atomic64_sub_return);
@@ -117,14 +117,14 @@ EXPORT_SYMBOL(atomic64_sub_return);
 long long atomic64_dec_if_positive(atomic64_t *v)
 {
 	unsigned long flags;
-	spinlock_t *lock = lock_addr(v);
+	raw_spinlock_t *lock = lock_addr(v);
 	long long val;
 
-	spin_lock_irqsave(lock, flags);
+	raw_spin_lock_irqsave(lock, flags);
 	val = v->counter - 1;
 	if (val >= 0)
 		v->counter = val;
-	spin_unlock_irqrestore(lock, flags);
+	raw_spin_unlock_irqrestore(lock, flags);
 	return val;
 }
 EXPORT_SYMBOL(atomic64_dec_if_positive);
@@ -132,14 +132,14 @@ EXPORT_SYMBOL(atomic64_dec_if_positive);
 long long atomic64_cmpxchg(atomic64_t *v, long long o, long long n)
 {
 	unsigned long flags;
-	spinlock_t *lock = lock_addr(v);
+	raw_spinlock_t *lock = lock_addr(v);
 	long long val;
 
-	spin_lock_irqsave(lock, flags);
+	raw_spin_lock_irqsave(lock, flags);
 	val = v->counter;
 	if (val == o)
 		v->counter = n;
-	spin_unlock_irqrestore(lock, flags);
+	raw_spin_unlock_irqrestore(lock, flags);
 	return val;
 }
 EXPORT_SYMBOL(atomic64_cmpxchg);
@@ -147,13 +147,13 @@ EXPORT_SYMBOL(atomic64_cmpxchg);
 long long atomic64_xchg(atomic64_t *v, long long new)
 {
 	unsigned long flags;
-	spinlock_t *lock = lock_addr(v);
+	raw_spinlock_t *lock = lock_addr(v);
 	long long val;
 
-	spin_lock_irqsave(lock, flags);
+	raw_spin_lock_irqsave(lock, flags);
 	val = v->counter;
 	v->counter = new;
-	spin_unlock_irqrestore(lock, flags);
+	raw_spin_unlock_irqrestore(lock, flags);
 	return val;
 }
 EXPORT_SYMBOL(atomic64_xchg);
@@ -161,15 +161,15 @@ EXPORT_SYMBOL(atomic64_xchg);
 int atomic64_add_unless(atomic64_t *v, long long a, long long u)
 {
 	unsigned long flags;
-	spinlock_t *lock = lock_addr(v);
+	raw_spinlock_t *lock = lock_addr(v);
 	int ret = 0;
 
-	spin_lock_irqsave(lock, flags);
+	raw_spin_lock_irqsave(lock, flags);
 	if (v->counter != u) {
 		v->counter += a;
 		ret = 1;
 	}
-	spin_unlock_irqrestore(lock, flags);
+	raw_spin_unlock_irqrestore(lock, flags);
 	return ret;
 }
 EXPORT_SYMBOL(atomic64_add_unless);
@@ -179,7 +179,7 @@ static int init_atomic64_lock(void)
 	int i;
 
 	for (i = 0; i < NR_LOCKS; ++i)
-		spin_lock_init(&atomic64_lock[i].lock);
+		raw_spin_lock_init(&atomic64_lock[i].lock);
 	return 0;
 }
 
diff --git a/lib/bitmap.c b/lib/bitmap.c
index 2f4412e4d071..0d4a127dd9b3 100644
--- a/lib/bitmap.c
+++ b/lib/bitmap.c
@@ -419,7 +419,7 @@ int __bitmap_parse(const char *buf, unsigned int buflen,
 {
 	int c, old_c, totaldigits, ndigits, nchunks, nbits;
 	u32 chunk;
-	const char __user *ubuf = buf;
+	const char __user __force *ubuf = (const char __user __force *)buf;
 
 	bitmap_zero(maskp, nmaskbits);
 
@@ -504,7 +504,9 @@ int bitmap_parse_user(const char __user *ubuf,
 {
 	if (!access_ok(VERIFY_READ, ubuf, ulen))
 		return -EFAULT;
-	return __bitmap_parse((const char *)ubuf, ulen, 1, maskp, nmaskbits);
+	return __bitmap_parse((const char __force *)ubuf,
+				ulen, 1, maskp, nmaskbits);
+
 }
 EXPORT_SYMBOL(bitmap_parse_user);
 
@@ -594,7 +596,7 @@ static int __bitmap_parselist(const char *buf, unsigned int buflen,
 {
 	unsigned a, b;
 	int c, old_c, totaldigits;
-	const char __user *ubuf = buf;
+	const char __user __force *ubuf = (const char __user __force *)buf;
 	int exp_digit, in_range;
 
 	totaldigits = c = 0;
@@ -694,7 +696,7 @@ int bitmap_parselist_user(const char __user *ubuf,
 {
 	if (!access_ok(VERIFY_READ, ubuf, ulen))
 		return -EFAULT;
-	return __bitmap_parselist((const char *)ubuf,
+	return __bitmap_parselist((const char __force *)ubuf,
 					ulen, 1, maskp, nmaskbits);
 }
 EXPORT_SYMBOL(bitmap_parselist_user);
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index db07bfd9298e..74c6c7fce749 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -24,6 +24,7 @@
 #include <linux/spinlock.h>
 #include <linux/debugfs.h>
 #include <linux/uaccess.h>
+#include <linux/export.h>
 #include <linux/device.h>
 #include <linux/types.h>
 #include <linux/sched.h>
@@ -62,6 +63,8 @@ struct dma_debug_entry {
 #endif
 };
 
+typedef bool (*match_fn)(struct dma_debug_entry *, struct dma_debug_entry *);
+
 struct hash_bucket {
 	struct list_head list;
 	spinlock_t lock;
@@ -240,18 +243,37 @@ static void put_hash_bucket(struct hash_bucket *bucket,
 	spin_unlock_irqrestore(&bucket->lock, __flags);
 }
 
+static bool exact_match(struct dma_debug_entry *a, struct dma_debug_entry *b)
+{
+	return ((a->dev_addr == a->dev_addr) &&
+		(a->dev == b->dev)) ? true : false;
+}
+
+static bool containing_match(struct dma_debug_entry *a,
+			     struct dma_debug_entry *b)
+{
+	if (a->dev != b->dev)
+		return false;
+
+	if ((b->dev_addr <= a->dev_addr) &&
+	    ((b->dev_addr + b->size) >= (a->dev_addr + a->size)))
+		return true;
+
+	return false;
+}
+
 /*
  * Search a given entry in the hash bucket list
  */
-static struct dma_debug_entry *hash_bucket_find(struct hash_bucket *bucket,
-						struct dma_debug_entry *ref)
+static struct dma_debug_entry *__hash_bucket_find(struct hash_bucket *bucket,
+						  struct dma_debug_entry *ref,
+						  match_fn match)
 {
 	struct dma_debug_entry *entry, *ret = NULL;
 	int matches = 0, match_lvl, last_lvl = 0;
 
 	list_for_each_entry(entry, &bucket->list, list) {
-		if ((entry->dev_addr != ref->dev_addr) ||
-		    (entry->dev != ref->dev))
+		if (!match(ref, entry))
 			continue;
 
 		/*
@@ -293,6 +315,39 @@ static struct dma_debug_entry *hash_bucket_find(struct hash_bucket *bucket,
 	return ret;
 }
 
+static struct dma_debug_entry *bucket_find_exact(struct hash_bucket *bucket,
+						 struct dma_debug_entry *ref)
+{
+	return __hash_bucket_find(bucket, ref, exact_match);
+}
+
+static struct dma_debug_entry *bucket_find_contain(struct hash_bucket **bucket,
+						   struct dma_debug_entry *ref,
+						   unsigned long *flags)
+{
+
+	unsigned int max_range = dma_get_max_seg_size(ref->dev);
+	struct dma_debug_entry *entry, index = *ref;
+	unsigned int range = 0;
+
+	while (range <= max_range) {
+		entry = __hash_bucket_find(*bucket, &index, containing_match);
+
+		if (entry)
+			return entry;
+
+		/*
+		 * Nothing found, go back a hash bucket
+		 */
+		put_hash_bucket(*bucket, flags);
+		range          += (1 << HASH_FN_SHIFT);
+		index.dev_addr -= (1 << HASH_FN_SHIFT);
+		*bucket = get_hash_bucket(&index, flags);
+	}
+
+	return NULL;
+}
+
 /*
  * Add an entry to a hash bucket
  */
@@ -802,7 +857,7 @@ static void check_unmap(struct dma_debug_entry *ref)
 	}
 
 	bucket = get_hash_bucket(ref, &flags);
-	entry = hash_bucket_find(bucket, ref);
+	entry = bucket_find_exact(bucket, ref);
 
 	if (!entry) {
 		err_printk(ref->dev, NULL, "DMA-API: device driver tries "
@@ -902,7 +957,7 @@ static void check_sync(struct device *dev,
 
 	bucket = get_hash_bucket(ref, &flags);
 
-	entry = hash_bucket_find(bucket, ref);
+	entry = bucket_find_contain(&bucket, ref, &flags);
 
 	if (!entry) {
 		err_printk(dev, NULL, "DMA-API: device driver tries "
@@ -1060,7 +1115,7 @@ static int get_nr_mapped_entries(struct device *dev,
 	int mapped_ents;
 
 	bucket       = get_hash_bucket(ref, &flags);
-	entry        = hash_bucket_find(bucket, ref);
+	entry        = bucket_find_exact(bucket, ref);
 	mapped_ents  = 0;
 
 	if (entry)
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index 79fc20b65e74..dcdade39e47f 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -10,6 +10,8 @@
  * Copyright (C) 2011 Bart Van Assche.  All Rights Reserved.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ":%s: " fmt, __func__
+
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
@@ -29,6 +31,8 @@
 #include <linux/jump_label.h>
 #include <linux/hardirq.h>
 #include <linux/sched.h>
+#include <linux/device.h>
+#include <linux/netdevice.h>
 
 extern struct _ddebug __start___verbose[];
 extern struct _ddebug __stop___verbose[];
@@ -37,7 +41,6 @@ struct ddebug_table {
 	struct list_head link;
 	char *mod_name;
 	unsigned int num_ddebugs;
-	unsigned int num_enabled;
 	struct _ddebug *ddebugs;
 };
 
@@ -147,19 +150,13 @@ static void ddebug_change(const struct ddebug_query *query,
 			newflags = (dp->flags & mask) | flags;
 			if (newflags == dp->flags)
 				continue;
-
-			if (!newflags)
-				dt->num_enabled--;
-			else if (!dp->flags)
-				dt->num_enabled++;
 			dp->flags = newflags;
 			if (newflags)
 				dp->enabled = 1;
 			else
 				dp->enabled = 0;
 			if (verbose)
-				printk(KERN_INFO
-					"ddebug: changed %s:%d [%s]%s %s\n",
+				pr_info("changed %s:%d [%s]%s %s\n",
 					dp->filename, dp->lineno,
 					dt->mod_name, dp->function,
 					ddebug_describe_flags(dp, flagbuf,
@@ -169,7 +166,7 @@ static void ddebug_change(const struct ddebug_query *query,
 	mutex_unlock(&ddebug_lock);
 
 	if (!nfound && verbose)
-		printk(KERN_INFO "ddebug: no matches for query\n");
+		pr_info("no matches for query\n");
 }
 
 /*
@@ -214,10 +211,10 @@ static int ddebug_tokenize(char *buf, char *words[], int maxwords)
 
 	if (verbose) {
 		int i;
-		printk(KERN_INFO "%s: split into words:", __func__);
+		pr_info("split into words:");
 		for (i = 0 ; i < nwords ; i++)
-			printk(" \"%s\"", words[i]);
-		printk("\n");
+			pr_cont(" \"%s\"", words[i]);
+		pr_cont("\n");
 	}
 
 	return nwords;
@@ -329,16 +326,15 @@ static int ddebug_parse_query(char *words[], int nwords,
 			}
 		} else {
 			if (verbose)
-				printk(KERN_ERR "%s: unknown keyword \"%s\"\n",
-					__func__, words[i]);
+				pr_err("unknown keyword \"%s\"\n", words[i]);
 			return -EINVAL;
 		}
 	}
 
 	if (verbose)
-		printk(KERN_INFO "%s: q->function=\"%s\" q->filename=\"%s\" "
-		       "q->module=\"%s\" q->format=\"%s\" q->lineno=%u-%u\n",
-			__func__, query->function, query->filename,
+		pr_info("q->function=\"%s\" q->filename=\"%s\" "
+			"q->module=\"%s\" q->format=\"%s\" q->lineno=%u-%u\n",
+			query->function, query->filename,
 			query->module, query->format, query->first_lineno,
 			query->last_lineno);
 
@@ -367,7 +363,7 @@ static int ddebug_parse_flags(const char *str, unsigned int *flagsp,
 		return -EINVAL;
 	}
 	if (verbose)
-		printk(KERN_INFO "%s: op='%c'\n", __func__, op);
+		pr_info("op='%c'\n", op);
 
 	for ( ; *str ; ++str) {
 		for (i = ARRAY_SIZE(opt_array) - 1; i >= 0; i--) {
@@ -382,7 +378,7 @@ static int ddebug_parse_flags(const char *str, unsigned int *flagsp,
 	if (flags == 0)
 		return -EINVAL;
 	if (verbose)
-		printk(KERN_INFO "%s: flags=0x%x\n", __func__, flags);
+		pr_info("flags=0x%x\n", flags);
 
 	/* calculate final *flagsp, *maskp according to mask and op */
 	switch (op) {
@@ -400,8 +396,7 @@ static int ddebug_parse_flags(const char *str, unsigned int *flagsp,
 		break;
 	}
 	if (verbose)
-		printk(KERN_INFO "%s: *flagsp=0x%x *maskp=0x%x\n",
-			__func__, *flagsp, *maskp);
+		pr_info("*flagsp=0x%x *maskp=0x%x\n", *flagsp, *maskp);
 	return 0;
 }
 
@@ -426,40 +421,117 @@ static int ddebug_exec_query(char *query_string)
 	return 0;
 }
 
+#define PREFIX_SIZE 64
+
+static int remaining(int wrote)
+{
+	if (PREFIX_SIZE - wrote > 0)
+		return PREFIX_SIZE - wrote;
+	return 0;
+}
+
+static char *dynamic_emit_prefix(const struct _ddebug *desc, char *buf)
+{
+	int pos_after_tid;
+	int pos = 0;
+
+	pos += snprintf(buf + pos, remaining(pos), "%s", KERN_DEBUG);
+	if (desc->flags & _DPRINTK_FLAGS_INCL_TID) {
+		if (in_interrupt())
+			pos += snprintf(buf + pos, remaining(pos), "%s ",
+						"<intr>");
+		else
+			pos += snprintf(buf + pos, remaining(pos), "[%d] ",
+						task_pid_vnr(current));
+	}
+	pos_after_tid = pos;
+	if (desc->flags & _DPRINTK_FLAGS_INCL_MODNAME)
+		pos += snprintf(buf + pos, remaining(pos), "%s:",
+					desc->modname);
+	if (desc->flags & _DPRINTK_FLAGS_INCL_FUNCNAME)
+		pos += snprintf(buf + pos, remaining(pos), "%s:",
+					desc->function);
+	if (desc->flags & _DPRINTK_FLAGS_INCL_LINENO)
+		pos += snprintf(buf + pos, remaining(pos), "%d:", desc->lineno);
+	if (pos - pos_after_tid)
+		pos += snprintf(buf + pos, remaining(pos), " ");
+	if (pos >= PREFIX_SIZE)
+		buf[PREFIX_SIZE - 1] = '\0';
+
+	return buf;
+}
+
 int __dynamic_pr_debug(struct _ddebug *descriptor, const char *fmt, ...)
 {
 	va_list args;
 	int res;
+	struct va_format vaf;
+	char buf[PREFIX_SIZE];
 
 	BUG_ON(!descriptor);
 	BUG_ON(!fmt);
 
 	va_start(args, fmt);
-	res = printk(KERN_DEBUG);
-	if (descriptor->flags & _DPRINTK_FLAGS_INCL_TID) {
-		if (in_interrupt())
-			res += printk(KERN_CONT "<intr> ");
-		else
-			res += printk(KERN_CONT "[%d] ", task_pid_vnr(current));
-	}
-	if (descriptor->flags & _DPRINTK_FLAGS_INCL_MODNAME)
-		res += printk(KERN_CONT "%s:", descriptor->modname);
-	if (descriptor->flags & _DPRINTK_FLAGS_INCL_FUNCNAME)
-		res += printk(KERN_CONT "%s:", descriptor->function);
-	if (descriptor->flags & _DPRINTK_FLAGS_INCL_LINENO)
-		res += printk(KERN_CONT "%d ", descriptor->lineno);
-	res += vprintk(fmt, args);
+	vaf.fmt = fmt;
+	vaf.va = &args;
+	res = printk("%s%pV", dynamic_emit_prefix(descriptor, buf), &vaf);
 	va_end(args);
 
 	return res;
 }
 EXPORT_SYMBOL(__dynamic_pr_debug);
 
+int __dynamic_dev_dbg(struct _ddebug *descriptor,
+		      const struct device *dev, const char *fmt, ...)
+{
+	struct va_format vaf;
+	va_list args;
+	int res;
+	char buf[PREFIX_SIZE];
+
+	BUG_ON(!descriptor);
+	BUG_ON(!fmt);
+
+	va_start(args, fmt);
+	vaf.fmt = fmt;
+	vaf.va = &args;
+	res = __dev_printk(dynamic_emit_prefix(descriptor, buf), dev, &vaf);
+	va_end(args);
+
+	return res;
+}
+EXPORT_SYMBOL(__dynamic_dev_dbg);
+
+#ifdef CONFIG_NET
+
+int __dynamic_netdev_dbg(struct _ddebug *descriptor,
+		      const struct net_device *dev, const char *fmt, ...)
+{
+	struct va_format vaf;
+	va_list args;
+	int res;
+	char buf[PREFIX_SIZE];
+
+	BUG_ON(!descriptor);
+	BUG_ON(!fmt);
+
+	va_start(args, fmt);
+	vaf.fmt = fmt;
+	vaf.va = &args;
+	res = __netdev_printk(dynamic_emit_prefix(descriptor, buf), dev, &vaf);
+	va_end(args);
+
+	return res;
+}
+EXPORT_SYMBOL(__dynamic_netdev_dbg);
+
+#endif
+
 static __initdata char ddebug_setup_string[1024];
 static __init int ddebug_setup_query(char *str)
 {
 	if (strlen(str) >= 1024) {
-		pr_warning("ddebug boot param string too large\n");
+		pr_warn("ddebug boot param string too large\n");
 		return 0;
 	}
 	strcpy(ddebug_setup_string, str);
@@ -487,8 +559,7 @@ static ssize_t ddebug_proc_write(struct file *file, const char __user *ubuf,
 		return -EFAULT;
 	tmpbuf[len] = '\0';
 	if (verbose)
-		printk(KERN_INFO "%s: read %d bytes from userspace\n",
-			__func__, (int)len);
+		pr_info("read %d bytes from userspace\n", (int)len);
 
 	ret = ddebug_exec_query(tmpbuf);
 	if (ret)
@@ -551,8 +622,7 @@ static void *ddebug_proc_start(struct seq_file *m, loff_t *pos)
 	int n = *pos;
 
 	if (verbose)
-		printk(KERN_INFO "%s: called m=%p *pos=%lld\n",
-			__func__, m, (unsigned long long)*pos);
+		pr_info("called m=%p *pos=%lld\n", m, (unsigned long long)*pos);
 
 	mutex_lock(&ddebug_lock);
 
@@ -577,8 +647,8 @@ static void *ddebug_proc_next(struct seq_file *m, void *p, loff_t *pos)
 	struct _ddebug *dp;
 
 	if (verbose)
-		printk(KERN_INFO "%s: called m=%p p=%p *pos=%lld\n",
-			__func__, m, p, (unsigned long long)*pos);
+		pr_info("called m=%p p=%p *pos=%lld\n",
+			m, p, (unsigned long long)*pos);
 
 	if (p == SEQ_START_TOKEN)
 		dp = ddebug_iter_first(iter);
@@ -601,8 +671,7 @@ static int ddebug_proc_show(struct seq_file *m, void *p)
 	char flagsbuf[8];
 
 	if (verbose)
-		printk(KERN_INFO "%s: called m=%p p=%p\n",
-			__func__, m, p);
+		pr_info("called m=%p p=%p\n", m, p);
 
 	if (p == SEQ_START_TOKEN) {
 		seq_puts(m,
@@ -627,8 +696,7 @@ static int ddebug_proc_show(struct seq_file *m, void *p)
 static void ddebug_proc_stop(struct seq_file *m, void *p)
 {
 	if (verbose)
-		printk(KERN_INFO "%s: called m=%p p=%p\n",
-			__func__, m, p);
+		pr_info("called m=%p p=%p\n", m, p);
 	mutex_unlock(&ddebug_lock);
 }
 
@@ -651,7 +719,7 @@ static int ddebug_proc_open(struct inode *inode, struct file *file)
 	int err;
 
 	if (verbose)
-		printk(KERN_INFO "%s: called\n", __func__);
+		pr_info("called\n");
 
 	iter = kzalloc(sizeof(*iter), GFP_KERNEL);
 	if (iter == NULL)
@@ -695,7 +763,6 @@ int ddebug_add_module(struct _ddebug *tab, unsigned int n,
 	}
 	dt->mod_name = new_name;
 	dt->num_ddebugs = n;
-	dt->num_enabled = 0;
 	dt->ddebugs = tab;
 
 	mutex_lock(&ddebug_lock);
@@ -703,8 +770,7 @@ int ddebug_add_module(struct _ddebug *tab, unsigned int n,
 	mutex_unlock(&ddebug_lock);
 
 	if (verbose)
-		printk(KERN_INFO "%u debug prints in module %s\n",
-				 n, dt->mod_name);
+		pr_info("%u debug prints in module %s\n", n, dt->mod_name);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(ddebug_add_module);
@@ -726,8 +792,7 @@ int ddebug_remove_module(const char *mod_name)
 	int ret = -ENOENT;
 
 	if (verbose)
-		printk(KERN_INFO "%s: removing module \"%s\"\n",
-				__func__, mod_name);
+		pr_info("removing module \"%s\"\n", mod_name);
 
 	mutex_lock(&ddebug_lock);
 	list_for_each_entry_safe(dt, nextdt, &ddebug_tables, link) {
@@ -803,8 +868,8 @@ static int __init dynamic_debug_init(void)
 	if (ddebug_setup_string[0] != '\0') {
 		ret = ddebug_exec_query(ddebug_setup_string);
 		if (ret)
-			pr_warning("Invalid ddebug boot param %s",
-				   ddebug_setup_string);
+			pr_warn("Invalid ddebug boot param %s",
+				ddebug_setup_string);
 		else
 			pr_info("ddebug initialized with string %s",
 				ddebug_setup_string);
diff --git a/lib/fault-inject.c b/lib/fault-inject.c
index f193b7796449..4f7554025e30 100644
--- a/lib/fault-inject.c
+++ b/lib/fault-inject.c
@@ -14,7 +14,7 @@
  * setup_fault_attr() is a helper function for various __setup handlers, so it
  * returns 0 on error, because that is what __setup handlers do.
  */
-int __init setup_fault_attr(struct fault_attr *attr, char *str)
+int setup_fault_attr(struct fault_attr *attr, char *str)
 {
 	unsigned long probability;
 	unsigned long interval;
@@ -36,6 +36,7 @@ int __init setup_fault_attr(struct fault_attr *attr, char *str)
 
 	return 1;
 }
+EXPORT_SYMBOL_GPL(setup_fault_attr);
 
 static void fail_dump(struct fault_attr *attr)
 {
@@ -130,6 +131,7 @@ bool should_fail(struct fault_attr *attr, ssize_t size)
 
 	return true;
 }
+EXPORT_SYMBOL_GPL(should_fail);
 
 #ifdef CONFIG_FAULT_INJECTION_DEBUG_FS
 
@@ -243,5 +245,6 @@ fail:
 
 	return ERR_PTR(-ENOMEM);
 }
+EXPORT_SYMBOL_GPL(fault_create_debugfs_attr);
 
 #endif /* CONFIG_FAULT_INJECTION_DEBUG_FS */
diff --git a/lib/idr.c b/lib/idr.c
index 5acf9bb10968..ed055b297c81 100644
--- a/lib/idr.c
+++ b/lib/idr.c
@@ -767,8 +767,8 @@ EXPORT_SYMBOL(ida_pre_get);
  * @starting_id: id to start search at
  * @p_id:	pointer to the allocated handle
  *
- * Allocate new ID above or equal to @ida.  It should be called with
- * any required locks.
+ * Allocate new ID above or equal to @starting_id.  It should be called
+ * with any required locks.
  *
  * If memory is required, it will return %-EAGAIN, you should unlock
  * and go back to the ida_pre_get() call.  If the ida is full, it will
@@ -944,6 +944,7 @@ int ida_simple_get(struct ida *ida, unsigned int start, unsigned int end,
 {
 	int ret, id;
 	unsigned int max;
+	unsigned long flags;
 
 	BUG_ON((int)start < 0);
 	BUG_ON((int)end < 0);
@@ -959,7 +960,7 @@ again:
 	if (!ida_pre_get(ida, gfp_mask))
 		return -ENOMEM;
 
-	spin_lock(&simple_ida_lock);
+	spin_lock_irqsave(&simple_ida_lock, flags);
 	ret = ida_get_new_above(ida, start, &id);
 	if (!ret) {
 		if (id > max) {
@@ -969,7 +970,7 @@ again:
 			ret = id;
 		}
 	}
-	spin_unlock(&simple_ida_lock);
+	spin_unlock_irqrestore(&simple_ida_lock, flags);
 
 	if (unlikely(ret == -EAGAIN))
 		goto again;
@@ -985,10 +986,12 @@ EXPORT_SYMBOL(ida_simple_get);
  */
 void ida_simple_remove(struct ida *ida, unsigned int id)
 {
+	unsigned long flags;
+
 	BUG_ON((int)id < 0);
-	spin_lock(&simple_ida_lock);
+	spin_lock_irqsave(&simple_ida_lock, flags);
 	ida_remove(ida, id);
-	spin_unlock(&simple_ida_lock);
+	spin_unlock_irqrestore(&simple_ida_lock, flags);
 }
 EXPORT_SYMBOL(ida_simple_remove);
 
diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c
index 70af0a7f97c0..ad72a03ce5e9 100644
--- a/lib/kobject_uevent.c
+++ b/lib/kobject_uevent.c
@@ -282,7 +282,7 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action,
 							    kobj_bcast_filter,
 							    kobj);
 			/* ENOBUFS should be handled in userspace */
-			if (retval == -ENOBUFS)
+			if (retval == -ENOBUFS || retval == -ESRCH)
 				retval = 0;
 		} else
 			retval = -ENOMEM;
diff --git a/lib/kstrtox.c b/lib/kstrtox.c
index 5e066759f551..7a94c8f14e29 100644
--- a/lib/kstrtox.c
+++ b/lib/kstrtox.c
@@ -18,26 +18,40 @@
 #include <linux/module.h>
 #include <linux/types.h>
 #include <asm/uaccess.h>
+#include "kstrtox.h"
 
-static int _kstrtoull(const char *s, unsigned int base, unsigned long long *res)
+const char *_parse_integer_fixup_radix(const char *s, unsigned int *base)
 {
-	unsigned long long acc;
-	int ok;
-
-	if (base == 0) {
+	if (*base == 0) {
 		if (s[0] == '0') {
 			if (_tolower(s[1]) == 'x' && isxdigit(s[2]))
-				base = 16;
+				*base = 16;
 			else
-				base = 8;
+				*base = 8;
 		} else
-			base = 10;
+			*base = 10;
 	}