Merge branch 'iommu/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu into x86/urgent

20 files changed, 626 insertions, 494 deletions

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 2f22cf4576db..25c3ed594c54 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -360,6 +360,7 @@ config DEBUG_KMEMLEAK
 	select DEBUG_FS if SYSFS
 	select STACKTRACE if STACKTRACE_SUPPORT
 	select KALLSYMS
+	select CRC32
 	help
 	  Say Y here if you want to enable the memory leak
 	  detector. The memory allocation/freeing is traced in a way
@@ -575,7 +576,7 @@ config DEBUG_BUGVERBOSE
 	depends on BUG
 	depends on ARM || AVR32 || M32R || M68K || SPARC32 || SPARC64 || \
 		   FRV || SUPERH || GENERIC_BUG || BLACKFIN || MN10300
-	default !EMBEDDED
+	default y
 	help
 	  Say Y here to make BUG() panics output the file name and line number
 	  of the BUG call as well as the EIP and oops trace.  This aids
diff --git a/lib/argv_split.c b/lib/argv_split.c
index 5205a8dae5bc..4b1b083f219c 100644
--- a/lib/argv_split.c
+++ b/lib/argv_split.c
@@ -4,17 +4,10 @@
 
 #include <linux/kernel.h>
 #include <linux/ctype.h>
+#include <linux/string.h>
 #include <linux/slab.h>
 #include <linux/module.h>
 
-static const char *skip_sep(const char *cp)
-{
-	while (*cp && isspace(*cp))
-		cp++;
-
-	return cp;
-}
-
 static const char *skip_arg(const char *cp)
 {
 	while (*cp && !isspace(*cp))
@@ -28,7 +21,7 @@ static int count_argc(const char *str)
 	int count = 0;
 
 	while (*str) {
-		str = skip_sep(str);
+		str = skip_spaces(str);
 		if (*str) {
 			count++;
 			str = skip_arg(str);
@@ -82,7 +75,7 @@ char **argv_split(gfp_t gfp, const char *str, int *argcp)
 	argvp = argv;
 
 	while (*str) {
-		str = skip_sep(str);
+		str = skip_spaces(str);
 
 		if (*str) {
 			const char *p = str;
diff --git a/lib/bitmap.c b/lib/bitmap.c
index 702565821c99..11bf49750583 100644
--- a/lib/bitmap.c
+++ b/lib/bitmap.c
@@ -271,6 +271,87 @@ int __bitmap_weight(const unsigned long *bitmap, int bits)
 }
 EXPORT_SYMBOL(__bitmap_weight);
 
+#define BITMAP_FIRST_WORD_MASK(start) (~0UL << ((start) % BITS_PER_LONG))
+
+void bitmap_set(unsigned long *map, int start, int nr)
+{
+	unsigned long *p = map + BIT_WORD(start);
+	const int size = start + nr;
+	int bits_to_set = BITS_PER_LONG - (start % BITS_PER_LONG);
+	unsigned long mask_to_set = BITMAP_FIRST_WORD_MASK(start);
+
+	while (nr - bits_to_set >= 0) {
+		*p |= mask_to_set;
+		nr -= bits_to_set;
+		bits_to_set = BITS_PER_LONG;
+		mask_to_set = ~0UL;
+		p++;
+	}
+	if (nr) {
+		mask_to_set &= BITMAP_LAST_WORD_MASK(size);
+		*p |= mask_to_set;
+	}
+}
+EXPORT_SYMBOL(bitmap_set);
+
+void bitmap_clear(unsigned long *map, int start, int nr)
+{
+	unsigned long *p = map + BIT_WORD(start);
+	const int size = start + nr;
+	int bits_to_clear = BITS_PER_LONG - (start % BITS_PER_LONG);
+	unsigned long mask_to_clear = BITMAP_FIRST_WORD_MASK(start);
+
+	while (nr - bits_to_clear >= 0) {
+		*p &= ~mask_to_clear;
+		nr -= bits_to_clear;
+		bits_to_clear = BITS_PER_LONG;
+		mask_to_clear = ~0UL;
+		p++;
+	}
+	if (nr) {
+		mask_to_clear &= BITMAP_LAST_WORD_MASK(size);
+		*p &= ~mask_to_clear;
+	}
+}
+EXPORT_SYMBOL(bitmap_clear);
+
+/*
+ * bitmap_find_next_zero_area - find a contiguous aligned zero area
+ * @map: The address to base the search on
+ * @size: The bitmap size in bits
+ * @start: The bitnumber to start searching at
+ * @nr: The number of zeroed bits we're looking for
+ * @align_mask: Alignment mask for zero area
+ *
+ * The @align_mask should be one less than a power of 2; the effect is that
+ * the bit offset of all zero areas this function finds is multiples of that
+ * power of 2. A @align_mask of 0 means no alignment is required.
+ */
+unsigned long bitmap_find_next_zero_area(unsigned long *map,
+					 unsigned long size,
+					 unsigned long start,
+					 unsigned int nr,
+					 unsigned long align_mask)
+{
+	unsigned long index, end, i;
+again:
+	index = find_next_zero_bit(map, size, start);
+
+	/* Align allocation */
+	index = __ALIGN_MASK(index, align_mask);
+
+	end = index + nr;
+	if (end > size)
+		return end;
+	i = find_next_bit(map, end, index);
+	if (i < end) {
+		start = i + 1;
+		goto again;
+	}
+	return index;
+}
+EXPORT_SYMBOL(bitmap_find_next_zero_area);
+
 /*
  * Bitmap printing & parsing functions: first version by Bill Irwin,
  * second version by Paul Jackson, third by Joe Korty.
diff --git a/lib/checksum.c b/lib/checksum.c
index b2e2fd468461..097508732f34 100644
--- a/lib/checksum.c
+++ b/lib/checksum.c
@@ -37,7 +37,8 @@
 
 #include <asm/byteorder.h>
 
-static inline unsigned short from32to16(unsigned long x)
+#ifndef do_csum
+static inline unsigned short from32to16(unsigned int x)
 {
 	/* add up 16-bit and 16-bit for 16+c bit */
 	x = (x & 0xffff) + (x >> 16);
@@ -49,16 +50,16 @@ static inline unsigned short from32to16(unsigned long x)
 static unsigned int do_csum(const unsigned char *buff, int len)
 {
 	int odd, count;
-	unsigned long result = 0;
+	unsigned int result = 0;
 
 	if (len <= 0)
 		goto out;
 	odd = 1 & (unsigned long) buff;
 	if (odd) {
 #ifdef __LITTLE_ENDIAN
-		result = *buff;
-#else
 		result += (*buff << 8);
+#else
+		result = *buff;
 #endif
 		len--;
 		buff++;
@@ -73,9 +74,9 @@ static unsigned int do_csum(const unsigned char *buff, int len)
 		}
 		count >>= 1;		/* nr of 32-bit words.. */
 		if (count) {
-			unsigned long carry = 0;
+			unsigned int carry = 0;
 			do {
-				unsigned long w = *(unsigned int *) buff;
+				unsigned int w = *(unsigned int *) buff;
 				count--;
 				buff += 4;
 				result += carry;
@@ -102,6 +103,7 @@ static unsigned int do_csum(const unsigned char *buff, int len)
 out:
 	return result;
 }
+#endif
 
 /*
  *	This is a version of ip_compute_csum() optimized for IP headers,
diff --git a/lib/crc32.c b/lib/crc32.c
index 49d1c9e3ce38..02e3b31b3a79 100644
--- a/lib/crc32.c
+++ b/lib/crc32.c
@@ -42,6 +42,48 @@ MODULE_AUTHOR("Matt Domsch <Matt_Domsch@dell.com>");
 MODULE_DESCRIPTION("Ethernet CRC32 calculations");
 MODULE_LICENSE("GPL");
 
+#if CRC_LE_BITS == 8 || CRC_BE_BITS == 8
+
+static inline u32
+crc32_body(u32 crc, unsigned char const *buf, size_t len, const u32 *tab)
+{
+# ifdef __LITTLE_ENDIAN
+#  define DO_CRC(x) crc = tab[(crc ^ (x)) & 255 ] ^ (crc >> 8)
+# else
+#  define DO_CRC(x) crc = tab[((crc >> 24) ^ (x)) & 255] ^ (crc << 8)
+# endif
+	const u32 *b = (const u32 *)buf;
+	size_t    rem_len;
+
+	/* Align it */
+	if (unlikely((long)b & 3 && len)) {
+		u8 *p = (u8 *)b;
+		do {
+			DO_CRC(*p++);
+		} while ((--len) && ((long)p)&3);
+		b = (u32 *)p;
+	}
+	rem_len = len & 3;
+	/* load data 32 bits wide, xor data 32 bits wide. */
+	len = len >> 2;
+	for (--b; len; --len) {
+		crc ^= *++b; /* use pre increment for speed */
+		DO_CRC(0);
+		DO_CRC(0);
+		DO_CRC(0);
+		DO_CRC(0);
+	}
+	len = rem_len;
+	/* And the last few bytes */
+	if (len) {
+		u8 *p = (u8 *)(b + 1) - 1;
+		do {
+			DO_CRC(*++p); /* use pre increment for speed */
+		} while (--len);
+	}
+	return crc;
+}
+#endif
 /**
  * crc32_le() - Calculate bitwise little-endian Ethernet AUTODIN II CRC32
  * @crc: seed value for computation.  ~0 for Ethernet, sometimes 0 for
@@ -72,48 +114,10 @@ u32 __pure crc32_le(u32 crc, unsigned char const *p, size_t len)
 u32 __pure crc32_le(u32 crc, unsigned char const *p, size_t len)
 {
 # if CRC_LE_BITS == 8
-	const u32      *b =(u32 *)p;
 	const u32      *tab = crc32table_le;
 
-# ifdef __LITTLE_ENDIAN
-#  define DO_CRC(x) crc = tab[ (crc ^ (x)) & 255 ] ^ (crc>>8)
-# else
-#  define DO_CRC(x) crc = tab[ ((crc >> 24) ^ (x)) & 255] ^ (crc<<8)
-# endif
-
 	crc = __cpu_to_le32(crc);
-	/* Align it */
-	if(unlikely(((long)b)&3 && len)){
-		do {
-			u8 *p = (u8 *)b;
-			DO_CRC(*p++);
-			b = (void *)p;
-		} while ((--len) && ((long)b)&3 );
-	}
-	if(likely(len >= 4)){
-		/* load data 32 bits wide, xor data 32 bits wide. */
-		size_t save_len = len & 3;
-	        len = len >> 2;
-		--b; /* use pre increment below(*++b) for speed */
-		do {
-			crc ^= *++b;
-			DO_CRC(0);
-			DO_CRC(0);
-			DO_CRC(0);
-			DO_CRC(0);
-		} while (--len);
-		b++; /* point to next byte(s) */
-		len = save_len;
-	}
-	/* And the last few bytes */
-	if(len){
-		do {
-			u8 *p = (u8 *)b;
-			DO_CRC(*p++);
-			b = (void *)p;
-		} while (--len);
-	}
-
+	crc = crc32_body(crc, p, len, tab);
 	return __le32_to_cpu(crc);
 #undef ENDIAN_SHIFT
 #undef DO_CRC
@@ -170,47 +174,10 @@ u32 __pure crc32_be(u32 crc, unsigned char const *p, size_t len)
 u32 __pure crc32_be(u32 crc, unsigned char const *p, size_t len)
 {
 # if CRC_BE_BITS == 8
-	const u32      *b =(u32 *)p;
 	const u32      *tab = crc32table_be;
 
-# ifdef __LITTLE_ENDIAN
-#  define DO_CRC(x) crc = tab[ (crc ^ (x)) & 255 ] ^ (crc>>8)
-# else
-#  define DO_CRC(x) crc = tab[ ((crc >> 24) ^ (x)) & 255] ^ (crc<<8)
-# endif
-
 	crc = __cpu_to_be32(crc);
-	/* Align it */
-	if(unlikely(((long)b)&3 && len)){
-		do {
-			u8 *p = (u8 *)b;
-			DO_CRC(*p++);
-			b = (u32 *)p;
-		} while ((--len) && ((long)b)&3 );
-	}
-	if(likely(len >= 4)){
-		/* load data 32 bits wide, xor data 32 bits wide. */
-		size_t save_len = len & 3;
-	        len = len >> 2;
-		--b; /* use pre increment below(*++b) for speed */
-		do {
-			crc ^= *++b;
-			DO_CRC(0);
-			DO_CRC(0);
-			DO_CRC(0);
-			DO_CRC(0);
-		} while (--len);
-		b++; /* point to next byte(s) */
-		len = save_len;
-	}
-	/* And the last few bytes */
-	if(len){
-		do {
-			u8 *p = (u8 *)b;
-			DO_CRC(*p++);
-			b = (void *)p;
-		} while (--len);
-	}
+	crc = crc32_body(crc, p, len, tab);
 	return __be32_to_cpu(crc);
 #undef ENDIAN_SHIFT
 #undef DO_CRC
diff --git a/lib/ctype.c b/lib/ctype.c
index d02ace14a322..26baa620e95b 100644
--- a/lib/ctype.c
+++ b/lib/ctype.c
@@ -7,30 +7,30 @@
 #include <linux/ctype.h>
 #include <linux/module.h>
 
-unsigned char _ctype[] = {
-_C,_C,_C,_C,_C,_C,_C,_C,			/* 0-7 */
-_C,_C|_S,_C|_S,_C|_S,_C|_S,_C|_S,_C,_C,		/* 8-15 */
-_C,_C,_C,_C,_C,_C,_C,_C,			/* 16-23 */
-_C,_C,_C,_C,_C,_C,_C,_C,			/* 24-31 */
-_S|_SP,_P,_P,_P,_P,_P,_P,_P,			/* 32-39 */
-_P,_P,_P,_P,_P,_P,_P,_P,			/* 40-47 */
-_D,_D,_D,_D,_D,_D,_D,_D,			/* 48-55 */
-_D,_D,_P,_P,_P,_P,_P,_P,			/* 56-63 */
-_P,_U|_X,_U|_X,_U|_X,_U|_X,_U|_X,_U|_X,_U,	/* 64-71 */
-_U,_U,_U,_U,_U,_U,_U,_U,			/* 72-79 */
-_U,_U,_U,_U,_U,_U,_U,_U,			/* 80-87 */
-_U,_U,_U,_P,_P,_P,_P,_P,			/* 88-95 */
-_P,_L|_X,_L|_X,_L|_X,_L|_X,_L|_X,_L|_X,_L,	/* 96-103 */
-_L,_L,_L,_L,_L,_L,_L,_L,			/* 104-111 */
-_L,_L,_L,_L,_L,_L,_L,_L,			/* 112-119 */
-_L,_L,_L,_P,_P,_P,_P,_C,			/* 120-127 */
-0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,		/* 128-143 */
-0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,		/* 144-159 */
-_S|_SP,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,   /* 160-175 */
-_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,       /* 176-191 */
-_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,       /* 192-207 */
-_U,_U,_U,_U,_U,_U,_U,_P,_U,_U,_U,_U,_U,_U,_U,_L,       /* 208-223 */
-_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,       /* 224-239 */
-_L,_L,_L,_L,_L,_L,_L,_P,_L,_L,_L,_L,_L,_L,_L,_L};      /* 240-255 */
+const unsigned char _ctype[] = {
+_C,_C,_C,_C,_C,_C,_C,_C,				/* 0-7 */
+_C,_C|_S,_C|_S,_C|_S,_C|_S,_C|_S,_C,_C,			/* 8-15 */
+_C,_C,_C,_C,_C,_C,_C,_C,				/* 16-23 */
+_C,_C,_C,_C,_C,_C,_C,_C,				/* 24-31 */
+_S|_SP,_P,_P,_P,_P,_P,_P,_P,				/* 32-39 */
+_P,_P,_P,_P,_P,_P,_P,_P,				/* 40-47 */
+_D,_D,_D,_D,_D,_D,_D,_D,				/* 48-55 */
+_D,_D,_P,_P,_P,_P,_P,_P,				/* 56-63 */
+_P,_U|_X,_U|_X,_U|_X,_U|_X,_U|_X,_U|_X,_U,		/* 64-71 */
+_U,_U,_U,_U,_U,_U,_U,_U,				/* 72-79 */
+_U,_U,_U,_U,_U,_U,_U,_U,				/* 80-87 */
+_U,_U,_U,_P,_P,_P,_P,_P,				/* 88-95 */
+_P,_L|_X,_L|_X,_L|_X,_L|_X,_L|_X,_L|_X,_L,		/* 96-103 */
+_L,_L,_L,_L,_L,_L,_L,_L,				/* 104-111 */
+_L,_L,_L,_L,_L,_L,_L,_L,				/* 112-119 */
+_L,_L,_L,_P,_P,_P,_P,_C,				/* 120-127 */
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,			/* 128-143 */
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,			/* 144-159 */
+_S|_SP,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,	/* 160-175 */
+_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,	/* 176-191 */
+_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,	/* 192-207 */
+_U,_U,_U,_U,_U,_U,_U,_P,_U,_U,_U,_U,_U,_U,_U,_L,	/* 208-223 */
+_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,	/* 224-239 */
+_L,_L,_L,_L,_L,_L,_L,_P,_L,_L,_L,_L,_L,_L,_L,_L};	/* 240-255 */
 
 EXPORT_SYMBOL(_ctype);
diff --git a/lib/debugobjects.c b/lib/debugobjects.c
index eae56fddfa3b..a9a8996d286a 100644
--- a/lib/debugobjects.c
+++ b/lib/debugobjects.c
@@ -26,14 +26,14 @@
 
 struct debug_bucket {
 	struct hlist_head	list;
-	spinlock_t		lock;
+	raw_spinlock_t		lock;
 };
 
 static struct debug_bucket	obj_hash[ODEBUG_HASH_SIZE];
 
 static struct debug_obj		obj_static_pool[ODEBUG_POOL_SIZE] __initdata;
 
-static DEFINE_SPINLOCK(pool_lock);
+static DEFINE_RAW_SPINLOCK(pool_lock);
 
 static HLIST_HEAD(obj_pool);
 
@@ -96,10 +96,10 @@ static int fill_pool(void)
 		if (!new)
 			return obj_pool_free;
 
-		spin_lock_irqsave(&pool_lock, flags);
+		raw_spin_lock_irqsave(&pool_lock, flags);
 		hlist_add_head(&new->node, &obj_pool);
 		obj_pool_free++;
-		spin_unlock_irqrestore(&pool_lock, flags);
+		raw_spin_unlock_irqrestore(&pool_lock, flags);
 	}
 	return obj_pool_free;
 }
@@ -133,7 +133,7 @@ alloc_object(void *addr, struct debug_bucket *b, struct debug_obj_descr *descr)
 {
 	struct debug_obj *obj = NULL;
 
-	spin_lock(&pool_lock);
+	raw_spin_lock(&pool_lock);
 	if (obj_pool.first) {
 		obj	    = hlist_entry(obj_pool.first, typeof(*obj), node);
 
@@ -152,7 +152,7 @@ alloc_object(void *addr, struct debug_bucket *b, struct debug_obj_descr *descr)
 		if (obj_pool_free < obj_pool_min_free)
 			obj_pool_min_free = obj_pool_free;
 	}
-	spin_unlock(&pool_lock);
+	raw_spin_unlock(&pool_lock);
 
 	return obj;
 }
@@ -165,7 +165,7 @@ static void free_obj_work(struct work_struct *work)
 	struct debug_obj *obj;
 	unsigned long flags;
 
-	spin_lock_irqsave(&pool_lock, flags);
+	raw_spin_lock_irqsave(&pool_lock, flags);
 	while (obj_pool_free > ODEBUG_POOL_SIZE) {
 		obj = hlist_entry(obj_pool.first, typeof(*obj), node);
 		hlist_del(&obj->node);
@@ -174,11 +174,11 @@ static void free_obj_work(struct work_struct *work)
 		 * We release pool_lock across kmem_cache_free() to
 		 * avoid contention on pool_lock.
 		 */
-		spin_unlock_irqrestore(&pool_lock, flags);
+		raw_spin_unlock_irqrestore(&pool_lock, flags);
 		kmem_cache_free(obj_cache, obj);
-		spin_lock_irqsave(&pool_lock, flags);
+		raw_spin_lock_irqsave(&pool_lock, flags);
 	}
-	spin_unlock_irqrestore(&pool_lock, flags);
+	raw_spin_unlock_irqrestore(&pool_lock, flags);
 }
 
 /*
@@ -190,7 +190,7 @@ static void free_object(struct debug_obj *obj)
 	unsigned long flags;
 	int sched = 0;
 
-	spin_lock_irqsave(&pool_lock, flags);
+	raw_spin_lock_irqsave(&pool_lock, flags);
 	/*
 	 * schedule work when the pool is filled and the cache is
 	 * initialized:
@@ -200,7 +200,7 @@ static void free_object(struct debug_obj *obj)
 	hlist_add_head(&obj->node, &obj_pool);
 	obj_pool_free++;
 	obj_pool_used--;
-	spin_unlock_irqrestore(&pool_lock, flags);
+	raw_spin_unlock_irqrestore(&pool_lock, flags);
 	if (sched)
 		schedule_work(&debug_obj_work);
 }
@@ -221,9 +221,9 @@ static void debug_objects_oom(void)
 	printk(KERN_WARNING "ODEBUG: Out of memory. ODEBUG disabled\n");
 
 	for (i = 0; i < ODEBUG_HASH_SIZE; i++, db++) {
-		spin_lock_irqsave(&db->lock, flags);
+		raw_spin_lock_irqsave(&db->lock, flags);
 		hlist_move_list(&db->list, &freelist);
-		spin_unlock_irqrestore(&db->lock, flags);
+		raw_spin_unlock_irqrestore(&db->lock, flags);
 
 		/* Now free them */
 		hlist_for_each_entry_safe(obj, node, tmp, &freelist, node) {
@@ -303,14 +303,14 @@ __debug_object_init(void *addr, struct debug_obj_descr *descr, int onstack)
 
 	db = get_bucket((unsigned long) addr);
 
-	spin_lock_irqsave(&db->lock, flags);
+	raw_spin_lock_irqsave(&db->lock, flags);
 
 	obj = lookup_object(addr, db);
 	if (!obj) {
 		obj = alloc_object(addr, db, descr);
 		if (!obj) {
 			debug_objects_enabled = 0;
-			spin_unlock_irqrestore(&db->lock, flags);
+			raw_spin_unlock_irqrestore(&db->lock, flags);
 			debug_objects_oom();
 			return;
 		}
@@ -327,7 +327,7 @@ __debug_object_init(void *addr, struct debug_obj_descr *descr, int onstack)
 	case ODEBUG_STATE_ACTIVE:
 		debug_print_object(obj, "init");
 		state = obj->state;
-		spin_unlock_irqrestore(&db->lock, flags);
+		raw_spin_unlock_irqrestore(&db->lock, flags);
 		debug_object_fixup(descr->fixup_init, addr, state);
 		return;
 
@@ -338,7 +338,7 @@ __debug_object_init(void *addr, struct debug_obj_descr *descr, int onstack)
 		break;
 	}
 
-	spin_unlock_irqrestore(&db->lock, flags);
+	raw_spin_unlock_irqrestore(&db->lock, flags);
 }
 
 /**
@@ -385,7 +385,7 @@ void debug_object_activate(void *addr, struct debug_obj_descr *descr)
 
 	db = get_bucket((unsigned long) addr);
 
-	spin_lock_irqsave(&db->lock, flags);
+	raw_spin_lock_irqsave(&db->lock, flags);
 
 	obj = lookup_object(addr, db);
 	if (obj) {
@@ -398,7 +398,7 @@ void debug_object_activate(void *addr, struct debug_obj_descr *descr)
 		case ODEBUG_STATE_ACTIVE:
 			debug_print_object(obj, "activate");
 			state = obj->state;
-			spin_unlock_irqrestore(&db->lock, flags);
+			raw_spin_unlock_irqrestore(&db->lock, flags);
 			debug_object_fixup(descr->fixup_activate, addr, state);
 			return;
 
@@ -408,11 +408,11 @@ void debug_object_activate(void *addr, struct debug_obj_descr *descr)
 		default:
 			break;
 		}
-		spin_unlock_irqrestore(&db->lock, flags);
+		raw_spin_unlock_irqrestore(&db->lock, flags);
 		return;
 	}
 
-	spin_unlock_irqrestore(&db->lock, flags);
+	raw_spin_unlock_irqrestore(&db->lock, flags);
 	/*
 	 * This happens when a static object is activated. We
 	 * let the type specific code decide whether this is
@@ -438,7 +438,7 @@ void debug_object_deactivate(void *addr, struct debug_obj_descr *descr)
 
 	db = get_bucket((unsigned long) addr);
 
-	spin_lock_irqsave(&db->lock, flags);
+	raw_spin_lock_irqsave(&db->lock, flags);
 
 	obj = lookup_object(addr, db);
 	if (obj) {
@@ -463,7 +463,7 @@ void debug_object_deactivate(void *addr, struct debug_obj_descr *descr)
 		debug_print_object(&o, "deactivate");
 	}
 
-	spin_unlock_irqrestore(&db->lock, flags);
+	raw_spin_unlock_irqrestore(&db->lock, flags);
 }
 
 /**
@@ -483,7 +483,7 @@ void debug_object_destroy(void *addr, struct debug_obj_descr *descr)
 
 	db = get_bucket((unsigned long) addr);
 
-	spin_lock_irqsave(&db->lock, flags);
+	raw_spin_lock_irqsave(&db->lock, flags);
 
 	obj = lookup_object(addr, db);
 	if (!obj)
@@ -498,7 +498,7 @@ void debug_object_destroy(void *addr, struct debug_obj_descr *descr)
 	case ODEBUG_STATE_ACTIVE:
 		debug_print_object(obj, "destroy");
 		state = obj->state;
-		spin_unlock_irqrestore(&db->lock, flags);
+		raw_spin_unlock_irqrestore(&db->lock, flags);
 		debug_object_fixup(descr->fixup_destroy, addr, state);
 		return;
 
@@ -509,7 +509,7 @@ void debug_object_destroy(void *addr, struct debug_obj_descr *descr)
 		break;
 	}
 out_unlock:
-	spin_unlock_irqrestore(&db->lock, flags);
+	raw_spin_unlock_irqrestore(&db->lock, flags);
 }
 
 /**
@@ -529,7 +529,7 @@ void debug_object_free(void *addr, struct debug_obj_descr *descr)
 
 	db = get_bucket((unsigned long) addr);
 
-	spin_lock_irqsave(&db->lock, flags);
+	raw_spin_lock_irqsave(&db->lock, flags);
 
 	obj = lookup_object(addr, db);
 	if (!obj)
@@ -539,17 +539,17 @@ void debug_object_free(void *addr, struct debug_obj_descr *descr)
 	case ODEBUG_STATE_ACTIVE:
 		debug_print_object(obj, "free");
 		state = obj->state;
-		spin_unlock_irqrestore(&db->lock, flags);
+		raw_spin_unlock_irqrestore(&db->lock, flags);
 		debug_object_fixup(descr->fixup_free, addr, state);
 		return;
 	default:
 		hlist_del(&obj->node);
-		spin_unlock_irqrestore(&db->lock, flags);
+		raw_spin_unlock_irqrestore(&db->lock, flags);
 		free_object(obj);
 		return;
 	}
 out_unlock:
-	spin_unlock_irqrestore(&db->lock, flags);
+	raw_spin_unlock_irqrestore(&db->lock, flags);
 }
 
 #ifdef CONFIG_DEBUG_OBJECTS_FREE
@@ -575,7 +575,7 @@ static void __debug_check_no_obj_freed(const void *address, unsigned long size)
 
 repeat:
 		cnt = 0;
-		spin_lock_irqsave(&db->lock, flags);
+		raw_spin_lock_irqsave(&db->lock, flags);
 		hlist_for_each_entry_safe(obj, node, tmp, &db->list, node) {
 			cnt++;
 			oaddr = (unsigned long) obj->object;
@@ -587,7 +587,7 @@ repeat:
 				debug_print_object(obj, "free");
 				descr = obj->descr;
 				state = obj->state;
-				spin_unlock_irqrestore(&db->lock, flags);
+				raw_spin_unlock_irqrestore(&db->lock, flags);
 				debug_object_fixup(descr->fixup_free,
 						   (void *) oaddr, state);
 				goto repeat;
@@ -597,7 +597,7 @@ repeat:
 				break;
 			}
 		}
-		spin_unlock_irqrestore(&db->lock, flags);
+		raw_spin_unlock_irqrestore(&db->lock, flags);
 
 		/* Now free them */
 		hlist_for_each_entry_safe(obj, node, tmp, &freelist, node) {
@@ -783,7 +783,7 @@ check_results(void *addr, enum debug_obj_state state, int fixups, int warnings)
 
 	db = get_bucket((unsigned long) addr);
 
-	spin_lock_irqsave(&db->lock, flags);
+	raw_spin_lock_irqsave(&db->lock, flags);
 
 	obj = lookup_object(addr, db);
 	if (!obj && state != ODEBUG_STATE_NONE) {
@@ -807,7 +807,7 @@ check_results(void *addr, enum debug_obj_state state, int fixups, int warnings)
 	}
 	res = 0;
 out:
-	spin_unlock_irqrestore(&db->lock, flags);
+	raw_spin_unlock_irqrestore(&db->lock, flags);
 	if (res)
 		debug_objects_enabled = 0;
 	return res;
@@ -907,7 +907,7 @@ void __init debug_objects_early_init(void)
 	int i;
 
 	for (i = 0; i < ODEBUG_HASH_SIZE; i++)
-		spin_lock_init(&obj_hash[i].lock);
+		raw_spin_lock_init(&obj_hash[i].lock);
 
 	for (i = 0; i < ODEBUG_POOL_SIZE; i++)
 		hlist_add_head(&obj_static_pool[i].node, &obj_pool);
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index d9b08e0f7f55..739974460c32 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -676,6 +676,8 @@ static int dma_debug_device_change(struct notifier_block *nb,
 	struct device *dev = data;
 	int count;
 
+	if (global_disable)
+		return;
 
 	switch (action) {
 	case BUS_NOTIFY_UNBOUND_DRIVER:
@@ -697,6 +699,9 @@ void dma_debug_add_bus(struct bus_type *bus)
 {
 	struct notifier_block *nb;
 
+	if (global_disable)
+		return;
+
 	nb = kzalloc(sizeof(struct notifier_block), GFP_KERNEL);
 	if (nb == NULL) {
 		pr_err("dma_debug_add_bus: out of memory\n");
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index e22c148e4b7f..f93502915988 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -21,6 +21,7 @@
 #include <linux/list.h>
 #include <linux/sysctl.h>
 #include <linux/ctype.h>
+#include <linux/string.h>
 #include <linux/uaccess.h>
 #include <linux/dynamic_debug.h>
 #include <linux/debugfs.h>
@@ -209,8 +210,7 @@ static int ddebug_tokenize(char *buf, char *words[], int maxwords)
 		char *end;
 
 		/* Skip leading whitespace */
-		while (*buf && isspace(*buf))
-			buf++;
+		buf = skip_spaces(buf);
 		if (!*buf)
 			break;	/* oh, it was trailing whitespace */
 
diff --git a/lib/genalloc.c b/lib/genalloc.c
index eed2bdb865e7..e67f97495dd5 100644
--- a/lib/genalloc.c
+++ b/lib/genalloc.c
@@ -11,6 +11,7 @@
  */
 
 #include <linux/module.h>
+#include <linux/bitmap.h>
 #include <linux/genalloc.h>
 
 
@@ -114,7 +115,7 @@ unsigned long gen_pool_alloc(struct gen_pool *pool, size_t size)
 	struct gen_pool_chunk *chunk;
 	unsigned long addr, flags;
 	int order = pool->min_alloc_order;
-	int nbits, bit, start_bit, end_bit;
+	int nbits, start_bit, end_bit;
 
 	if (size == 0)
 		return 0;
@@ -129,29 +130,19 @@ unsigned long gen_pool_alloc(struct gen_pool *pool, size_t size)
 		end_bit -= nbits + 1;
 
 		spin_lock_irqsave(&chunk->lock, flags);
-		bit = -1;
-		while (bit + 1 < end_bit) {
-			bit = find_next_zero_bit(chunk->bits, end_bit, bit + 1);
-			if (bit >= end_bit)
-				break;
-
-			start_bit = bit;
-			if (nbits > 1) {
-				bit = find_next_bit(chunk->bits, bit + nbits,
-							bit + 1);
-				if (bit - start_bit < nbits)
-					continue;
-			}
-
-			addr = chunk->start_addr +
-					    ((unsigned long)start_bit << order);
-			while (nbits--)
-				__set_bit(start_bit++, chunk->bits);
+		start_bit = bitmap_find_next_zero_area(chunk->bits, end_bit, 0,
+						nbits, 0);
+		if (start_bit >= end_bit) {
 			spin_unlock_irqrestore(&chunk->lock, flags);
-			read_unlock(&pool->lock);
-			return addr;
+			continue;
 		}
+
+		addr = chunk->start_addr + ((unsigned long)start_bit << order);
+
+		bitmap_set(chunk->bits, start_bit, nbits);
 		spin_unlock_irqrestore(&chunk->lock, flags);
+		read_unlock(&pool->lock);
+		return addr;
 	}
 	read_unlock(&pool->lock);
 	return 0;
diff --git a/lib/iommu-helper.c b/lib/iommu-helper.c
index 75dbda03f4fb..c0251f4ad08b 100644
--- a/lib/iommu-helper.c
+++ b/lib/iommu-helper.c
@@ -3,41 +3,7 @@
  */
 
 #include <linux/module.h>
-#include <linux/bitops.h>
-
-static unsigned long find_next_zero_area(unsigned long *map,
-					 unsigned long size,
-					 unsigned long start,
-					 unsigned int nr,
-					 unsigned long align_mask)
-{
-	unsigned long index, end, i;
-again:
-	index = find_next_zero_bit(map, size, start);
-
-	/* Align allocation */
-	index = (index + align_mask) & ~align_mask;
-
-	end = index + nr;
-	if (end >= size)
-		return -1;
-	for (i = index; i < end; i++) {
-		if (test_bit(i, map)) {
-			start = i+1;
-			goto again;
-		}
-	}
-	return index;
-}
-
-void iommu_area_reserve(unsigned long *map, unsigned long i, int len)
-{
-	unsigned long end = i + len;
-	while (i < end) {
-		__set_bit(i, map);
-		i++;
-	}
-}
+#include <linux/bitmap.h>
 
 int iommu_is_span_boundary(unsigned int index, unsigned int nr,
 			   unsigned long shift,
@@ -55,31 +21,24 @@ unsigned long iommu_area_alloc(unsigned long *map, unsigned long size,
 			       unsigned long align_mask)
 {
 	unsigned long index;
+
+	/* We don't want the last of the limit */
+	size -= 1;
 again:
-	index = find_next_zero_area(map, size, start, nr, align_mask);
-	if (index != -1) {
+	index = bitmap_find_next_zero_area(map, size, start, nr, align_mask);
+	if (index < size) {
 		if (iommu_is_span_boundary(index, nr, shift, boundary_size)) {
 			/* we could do more effectively */
 			start = index + 1;
 			goto again;
 		}
-		iommu_area_reserve(map, index, nr);
+		bitmap_set(map, index, nr);
+		return index;
 	}
-	return index;
+	return -1;
 }
 EXPORT_SYMBOL(iommu_area_alloc);
 
-void iommu_area_free(unsigned long *map, unsigned long start, unsigned int nr)
-{
-	unsigned long end = start + nr;
-
-	while (start < end) {
-		__clear_bit(start, map);
-		start++;
-	}
-}
-EXPORT_SYMBOL(iommu_area_free);
-
 unsigned long iommu_num_pages(unsigned long addr, unsigned long len,
 			      unsigned long io_page_size)
 {
diff --git a/lib/kernel_lock.c b/lib/kernel_lock.c
index 4ebfa5a164d7..b135d04aa48a 100644
--- a/lib/kernel_lock.c
+++ b/lib/kernel_lock.c
@@ -23,7 +23,7 @@
  *
  * Don't use in new code.
  */
-static  __cacheline_aligned_in_smp DEFINE_SPINLOCK(kernel_flag);
+static  __cacheline_aligned_in_smp DEFINE_RAW_SPINLOCK(kernel_flag);
 
 
 /*
@@ -36,12 +36,12 @@ static  __cacheline_aligned_in_smp DEFINE_SPINLOCK(kernel_flag);
  * If it successfully gets the lock, it should increment
  * the preemption count like any spinlock does.
  *
- * (This works on UP too - _raw_spin_trylock will never
+ * (This works on UP too - do_raw_spin_trylock will never
  * return false in that case)
  */
 int __lockfunc __reacquire_kernel_lock(void)
 {
-	while (!_raw_spin_trylock(&kernel_flag)) {
+	while (!do_raw_spin_trylock(&kernel_flag)) {
 		if (need_resched())
 			return -EAGAIN;
 		cpu_relax();
@@ -52,27 +52,27 @@ int __lockfunc __reacquire_kernel_lock(void)
 
 void __lockfunc __release_kernel_lock(void)
 {
-	_raw_spin_unlock(&kernel_flag);
+	do_raw_spin_unlock(&kernel_flag);
 	preempt_enable_no_resched();
 }
 
 /*
  * These are the BKL spinlocks - we try to be polite about preemption.
  * If SMP is not on (ie UP preemption), this all goes away because the
- * _raw_spin_trylock() will always succeed.
+ * do_raw_spin_trylock() will always succeed.
  */
 #ifdef CONFIG_PREEMPT
 static inline void __lock_kernel(void)
 {
 	preempt_disable();
-	if (unlikely(!_raw_spin_trylock(&kernel_flag))) {
+	if (unlikely(!do_raw_spin_trylock(&kernel_flag))) {
 		/*
 		 * If preemption was disabled even before this
 		 * was called, there's nothing we can be polite
 		 * about - just spin.
 		 */
 		if (preempt_count() > 1) {
-			_raw_spin_lock(&kernel_flag);
+			do_raw_spin_lock(&kernel_flag);
 			return;
 		}
 
@@ -82,10 +82,10 @@ static inline void __lock_kernel(void)
 		 */
 		do {
 			preempt_enable();
-			while (spin_is_locked(&kernel_flag))
+			while (raw_spin_is_locked(&kernel_flag))
 				cpu_relax();
 			preempt_disable();
-		} while (!_raw_spin_trylock(&kernel_flag));
+		} while (!do_raw_spin_trylock(&kernel_flag));
 	}
 }
 
@@ -96,7 +96,7 @@ static inline void __lock_kernel(void)
  */
 static inline void __lock_kernel(void)
 {
-	_raw_spin_lock(&kernel_flag);
+	do_raw_spin_lock(&kernel_flag);
 }
 #endif
 
@@ -106,7 +106,7 @@ static inline void __unlock_kernel(void)
 	 * the BKL is not covered by lockdep, so we open-code the
 	 * unlocking sequence (and thus avoid the dep-chain ops):
 	 */
-	_raw_spin_unlock(&kernel_flag);
+	do_raw_spin_unlock(&kernel_flag);
 	preempt_enable();
 }
 
@@ -122,8 +122,10 @@ void __lockfunc _lock_kernel(const char *func, const char *file, int line)
 
 	trace_lock_kernel(func, file, line);
 
-	if (likely(!depth))
+	if (likely(!depth)) {
+		might_sleep();
 		__lock_kernel();
+	}
 	current->lock_depth = depth;
 }
 
diff --git a/lib/lmb.c b/lib/lmb.c
index 0343c05609f0..9cee17142b2c 100644
--- a/lib/lmb.c
+++ b/lib/lmb.c
@@ -263,7 +263,7 @@ long __init lmb_reserve(u64 base, u64 size)
 	return lmb_add_region(_rgn, base, size);
 }
 
-long __init lmb_overlaps_region(struct lmb_region *rgn, u64 base, u64 size)
+long lmb_overlaps_region(struct lmb_region *rgn, u64 base, u64 size)
 {
 	unsigned long i;
 
@@ -493,6 +493,11 @@ int __init lmb_is_reserved(u64 addr)
 	return 0;
 }
 
+int lmb_is_region_reserved(u64 base, u64 size)
+{
+	return lmb_overlaps_region(&lmb.reserved, base, size);
+}
+
 /*
  * Given a <base, len>, find which memory regions belong to this range.
  * Adjust the request and return a contiguous chunk.
diff --git a/lib/parser.c b/lib/parser.c
index b00d02059a5f..fb34977246bb 100644
--- a/lib/parser.c
+++ b/lib/parser.c
@@ -56,13 +56,16 @@ static int match_one(char *s, const char *p, substring_t args[])
 
 		args[argc].from = s;
 		switch (*p++) {
-		case 's':
-			if (strlen(s) == 0)
+		case 's': {
+			size_t str_len = strlen(s);
+
+			if (str_len == 0)
 				return 0;
-			else if (len == -1 || len > strlen(s))
-				len = strlen(s);
+			if (len == -1 || len > str_len)
+				len = str_len;
 			args[argc].to = s + len;
 			break;
+		}
 		case 'd':
 			simple_strtol(s, &args[argc].to, 0);
 			goto num;
diff --git a/lib/plist.c b/lib/plist.c
index d6c64a824e1d..1471988d9190 100644
--- a/lib/plist.c
+++ b/lib/plist.c
@@ -54,9 +54,11 @@ static void plist_check_list(struct list_head *top)
 
 static void plist_check_head(struct plist_head *head)
 {
-	WARN_ON(!head->lock);
-	if (head->lock)
-		WARN_ON_SMP(!spin_is_locked(head->lock));
+	WARN_ON(!head->rawlock && !head->spinlock);
+	if (head->rawlock)
+		WARN_ON_SMP(!raw_spin_is_locked(head->rawlock));
+	if (head->spinlock)
+		WARN_ON_SMP(!spin_is_locked(head->spinlock));
 	plist_check_list(&head->prio_list);
 	plist_check_list(&head->node_list);
 }
diff --git a/lib/rwsem-spinlock.c b/lib/rwsem-spinlock.c
index 9df3ca56db11..ccf95bff7984 100644
--- a/lib/rwsem-spinlock.c
+++ b/lib/rwsem-spinlock.c
@@ -17,6 +17,19 @@ struct rwsem_waiter {
 #define RWSEM_WAITING_FOR_WRITE	0x00000002
 };
 
+int rwsem_is_locked(struct rw_semaphore *sem)
+{
+	int ret = 1;
+	unsigned long flags;
+
+	if (spin_trylock_irqsave(&sem->wait_lock, flags)) {
+		ret = (sem->activity != 0);
+		spin_unlock_irqrestore(&sem->wait_lock, flags);
+	}
+	return ret;
+}
+EXPORT_SYMBOL(rwsem_is_locked);
+
 /*
  * initialise the semaphore
  */
@@ -34,6 +47,7 @@ void __init_rwsem(struct rw_semaphore *sem, const char *name,
 	spin_lock_init(&sem->wait_lock);
 	INIT_LIST_HEAD(&sem->wait_list);
 }
+EXPORT_SYMBOL(__init_rwsem);
 
 /*
  * handle the lock release when processes blocked on it that can now run
@@ -305,12 +319,3 @@ void __downgrade_write(struct rw_semaphore *sem)
 	spin_unlock_irqrestore(&sem->wait_lock, flags);
 }
 
-EXPORT_SYMBOL(__init_rwsem);
-EXPORT_SYMBOL(__down_read);
-EXPORT_SYMBOL(__down_read_trylock);
-EXPORT_SYMBOL(__down_write_nested);
-EXPORT_SYMBOL(__down_write);
-EXPORT_SYMBOL(__down_write_trylock);
-EXPORT_SYMBOL(__up_read);
-EXPORT_SYMBOL(__up_write);
-EXPORT_SYMBOL(__downgrade_write);
diff --git a/lib/spinlock_debug.c b/lib/spinlock_debug.c
index 9c4b0256490b..4755b98b6dfb 100644
--- a/lib/spinlock_debug.c
+++ b/lib/spinlock_debug.c
@@ -13,8 +13,8 @@
 #include <linux/delay.h>
 #include <linux/module.h>
 
-void __spin_lock_init(spinlock_t *lock, const char *name,
-		      struct lock_class_key *key)
+void __raw_spin_lock_init(raw_spinlock_t *lock, const char *name,
+			  struct lock_class_key *key)
 {
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
 	/*
@@ -23,13 +23,13 @@ void __spin_lock_init(spinlock_t *lock, const char *name,
 	debug_check_no_locks_freed((void *)lock, sizeof(*lock));
 	lockdep_init_map(&lock->dep_map, name, key, 0);
 #endif
-	lock->raw_lock = (raw_spinlock_t)__RAW_SPIN_LOCK_UNLOCKED;
+	lock->raw_lock = (arch_spinlock_t)__ARCH_SPIN_LOCK_UNLOCKED;
 	lock->magic = SPINLOCK_MAGIC;
 	lock->owner = SPINLOCK_OWNER_INIT;
 	lock->owner_cpu = -1;
 }
 
-EXPORT_SYMBOL(__spin_lock_init);
+EXPORT_SYMBOL(__raw_spin_lock_init);
 
 void __rwlock_init(rwlock_t *lock, const char *name,
 		   struct lock_class_key *key)
@@ -41,7 +41,7 @@ void __rwlock_init(rwlock_t *lock, const char *name,
 	debug_check_no_locks_freed((void *)lock, sizeof(*lock));
 	lockdep_init_map(&lock->dep_map, name, key, 0);
 #endif
-	lock->raw_lock = (raw_rwlock_t) __RAW_RW_LOCK_UNLOCKED;
+	lock->raw_lock = (arch_rwlock_t) __ARCH_RW_LOCK_UNLOCKED;
 	lock->magic = RWLOCK_MAGIC;
 	lock->owner = SPINLOCK_OWNER_INIT;
 	lock->owner_cpu = -1;
@@ -49,7 +49,7 @@ void __rwlock_init(rwlock_t *lock, const char *name,
 
 EXPORT_SYMBOL(__rwlock_init);
 
-static void spin_bug(spinlock_t *lock, const char *msg)
+static void spin_bug(raw_spinlock_t *lock, const char *msg)
 {
 	struct task_struct *owner = NULL;
 
@@ -73,7 +73,7 @@ static void spin_bug(spinlock_t *lock, const char *msg)
 #define SPIN_BUG_ON(cond, lock, msg) if (unlikely(cond)) spin_bug(lock, msg)
 
 static inline void
-debug_spin_lock_before(spinlock_t *lock)
+debug_spin_lock_before(raw_spinlock_t *lock)
 {
 	SPIN_BUG_ON(lock->magic != SPINLOCK_MAGIC, lock, "bad magic");
 	SPIN_BUG_ON(lock->owner == current, lock, "recursion");
@@ -81,16 +81,16 @@ debug_spin_lock_before(spinlock_t *lock)
 							lock, "cpu recursion");
 }
 
-static inline void debug_spin_lock_after(spinlock_t *lock)
+static inline void debug_spin_lock_after(raw_spinlock_t *lock)
 {
 	lock->owner_cpu = raw_smp_processor_id();
 	lock->owner = current;
 }
 
-static inline void debug_spin_unlock(spinlock_t *lock)
+static inline void debug_spin_unlock(raw_spinlock_t *lock)
 {
 	SPIN_BUG_ON(lock->magic != SPINLOCK_MAGIC, lock, "bad magic");
-	SPIN_BUG_ON(!spin_is_locked(lock), lock, "already unlocked");
+	SPIN_BUG_ON(!raw_spin_is_locked(lock), lock, "already unlocked");
 	SPIN_BUG_ON(lock->owner != current, lock, "wrong owner");
 	SPIN_BUG_ON(lock->owner_cpu != raw_smp_processor_id(),
 							lock, "wrong CPU");
@@ -98,7 +98,7 @@ static inline void debug_spin_unlock(spinlock_t *lock)
 	lock->owner_cpu = -1;
 }
 
-static void __spin_lock_debug(spinlock_t *lock)
+static void __spin_lock_debug(raw_spinlock_t *lock)
 {
 	u64 i;
 	u64 loops = loops_per_jiffy * HZ;
@@ -106,7 +106,7 @@ static void __spin_lock_debug(spinlock_t *lock)
 
 	for (;;) {
 		for (i = 0; i < loops; i++) {
-			if (__raw_spin_trylock(&lock->raw_lock))
+			if (arch_spin_trylock(&lock->raw_lock))
 				return;
 			__delay(1);
 		}
@@ -125,17 +125,17 @@ static void __spin_lock_debug(spinlock_t *lock)
 	}
 }
 
-void _raw_spin_lock(spinlock_t *lock)
+void do_raw_spin_lock(raw_spinlock_t *lock)
 {
 	debug_spin_lock_before(lock);
-	if (unlikely(!__raw_spin_trylock(&lock->raw_lock)))
+	if (unlikely(!arch_spin_trylock(&lock->raw_lock)))
 		__spin_lock_debug(lock);
 	debug_spin_lock_after(lock);
 }
 
-int _raw_spin_trylock(spinlock_t *lock)
+int do_raw_spin_trylock(raw_spinlock_t *lock)
 {
-	int ret = __raw_spin_trylock(&lock->raw_lock);
+	int ret = arch_spin_trylock(&lock->raw_lock);
 
 	if (ret)
 		debug_spin_lock_after(lock);
@@ -148,10 +148,10 @@ int _raw_spin_trylock(spinlock_t *lock)
 	return ret;
 }
 
-void _raw_spin_unlock(spinlock_t *lock)
+void do_raw_spin_unlock(raw_spinlock_t *lock)
 {
 	debug_spin_unlock(lock);
-	__raw_spin_unlock(&lock->raw_lock);
+	arch_spin_unlock(&lock->raw_lock);
 }
 
 static void rwlock_bug(rwlock_t *lock, const char *msg)
@@ -176,7 +176,7 @@ static void __read_lock_debug(rwlock_t *lock)
 
 	for (;;) {
 		for (i = 0; i < loops; i++) {
-			if (__raw_read_trylock(&lock->raw_lock))
+			if (arch_read_trylock(&lock->raw_lock))
 				return;
 			__delay(1);
 		}
@@ -193,15 +193,15 @@ static void __read_lock_debug(rwlock_t *lock)
 }
 #endif
 
-void _raw_read_lock(rwlock_t *lock)
+void do_raw_read_lock(rwlock_t *lock)
 {
 	RWLOCK_BUG_ON(lock->magic != RWLOCK_MAGIC, lock, "bad magic");
-	__raw_read_lock(&lock->raw_lock);
+	arch_read_lock(&lock->raw_lock);
 }
 
-int _raw_read_trylock(rwlock_t *lock)
+int do_raw_read_trylock(rwlock_t *lock)
 {
-	int ret = __raw_read_trylock(&lock->raw_lock);
+	int ret = arch_read_trylock(&lock->raw_lock);
 
 #ifndef CONFIG_SMP
 	/*
@@ -212,10 +212,10 @@ int _raw_read_trylock(rwlock_t *lock)
 	return ret;
 }
 
-void _raw_read_unlock(rwlock_t *lock)
+void do_raw_read_unlock(rwlock_t *lock)
 {
 	RWLOCK_BUG_ON(lock->magic != RWLOCK_MAGIC, lock, "bad magic");
-	__raw_read_unlock(&lock->raw_lock);
+	arch_read_unlock(&lock->raw_lock);
 }
 
 static inline void debug_write_lock_before(rwlock_t *lock)
@@ -251,7 +251,7 @@ static void __write_lock_debug(rwlock_t *lock)
 
 	for (;;) {
 		for (i = 0; i < loops; i++) {
-			if (__raw_write_trylock(&lock->raw_lock))
+			if (arch_write_trylock(&lock->raw_lock))
 				return;
 			__delay(1);
 		}
@@ -268,16 +268,16 @@ static void __write_lock_debug(rwlock_t *lock)
 }
 #endif
 
-void _raw_write_lock(rwlock_t *lock)
+void do_raw_write_lock(rwlock_t *lock)
 {
 	debug_write_lock_before(lock);
-	__raw_write_lock(&lock->raw_lock);
+	arch_write_lock(&lock->raw_lock);
 	debug_write_lock_after(lock);
 }
 
-int _raw_write_trylock(rwlock_t *lock)
+int do_raw_write_trylock(rwlock_t *lock)
 {
-	int ret = __raw_write_trylock(&lock->raw_lock);
+	int ret = arch_write_trylock(&lock->raw_lock);
 
 	if (ret)
 		debug_write_lock_after(lock);
@@ -290,8 +290,8 @@ int _raw_write_trylock(rwlock_t *lock)
 	return ret;
 }
 
-void _raw_write_unlock(rwlock_t *lock)
+void do_raw_write_unlock(rwlock_t *lock)
 {
 	debug_write_unlock(lock);
-	__raw_write_unlock(&lock->raw_lock);
+	arch_write_unlock(&lock->raw_lock);
 }
diff --git a/lib/string.c b/lib/string.c
index e96421ab9a9a..afce96af3afd 100644
--- a/lib/string.c
+++ b/lib/string.c
@@ -338,20 +338,34 @@ EXPORT_SYMBOL(strnchr);
 #endif
 
 /**
- * strstrip - Removes leading and trailing whitespace from @s.
+ * skip_spaces - Removes leading whitespace from @s.
+ * @s: The string to be stripped.
+ *
+ * Returns a pointer to the first non-whitespace character in @s.
+ */
+char *skip_spaces(const char *str)
+{
+	while (isspace(*str))
+		++str;
+	return (char *)str;
+}
+EXPORT_SYMBOL(skip_spaces);
+
+/**
+ * strim - Removes leading and trailing whitespace from @s.
  * @s: The string to be stripped.
  *
  * Note that the first trailing whitespace is replaced with a %NUL-terminator
  * in the given string @s. Returns a pointer to the first non-whitespace
  * character in @s.
  */
-char *strstrip(char *s)
+char *strim(char *s)
 {
 	size_t size;
 	char *end;
 
+	s = skip_spaces(s);
 	size = strlen(s);
-
 	if (!size)
 		return s;
 
@@ -360,12 +374,9 @@ char *strstrip(char *s)
 		end--;
 	*(end + 1) = '\0';
 
-	while (*s && isspace(*s))
-		s++;
-
 	return s;
 }
-EXPORT_SYMBOL(strstrip);
+EXPORT_SYMBOL(strim);
 
 #ifndef __HAVE_ARCH_STRLEN
 /**
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 5bc01803f8f8..437eedb5a53b 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -549,7 +549,7 @@ swiotlb_alloc_coherent(struct device *hwdev, size_t size,
 		dma_mask = hwdev->coherent_dma_mask;
 
 	ret = (void *)__get_free_pages(flags, order);
-	if (ret && swiotlb_virt_to_bus(hwdev, ret) + size > dma_mask) {
+	if (ret && swiotlb_virt_to_bus(hwdev, ret) + size - 1 > dma_mask) {
 		/*
 		 * The allocated memory isn't reachable by the device.
 		 */
@@ -571,7 +571,7 @@ swiotlb_alloc_coherent(struct device *hwdev, size_t size,
 	dev_addr = swiotlb_virt_to_bus(hwdev, ret);
 
 	/* Confirm address can be DMA'd by device */
-	if (dev_addr + size > dma_mask) {
+	if (dev_addr + size - 1 > dma_mask) {
 		printk("hwdev DMA mask = 0x%016Lx, dev_addr = 0x%016Lx\n",
 		       (unsigned long long)dma_mask,
 		       (unsigned long long)dev_addr);
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 33bed5e67a21..d4996cf46eb6 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -9,7 +9,7 @@
  * Wirzenius wrote this portably, Torvalds fucked it up :-)
  */
 
-/* 
+/*
  * Fri Jul 13 2001 Crutcher Dunnavant <crutcher+kernel@datastacks.com>
  * - changed to provide snprintf and vsnprintf functions
  * So Feb  1 16:51:32 CET 2004 Juergen Quade <quade@hsnr.de>
@@ -47,14 +47,14 @@ static unsigned int simple_guess_base(const char *cp)
 }
 
 /**
- * simple_strtoul - convert a string to an unsigned long
+ * simple_strtoull - convert a string to an unsigned long long
  * @cp: The start of the string
  * @endp: A pointer to the end of the parsed string will be placed here
  * @base: The number base to use
  */
-unsigned long simple_strtoul(const char *cp, char **endp, unsigned int base)
+unsigned long long simple_strtoull(const char *cp, char **endp, unsigned int base)
 {
-	unsigned long result = 0;
+	unsigned long long result = 0;
 
 	if (!base)
 		base = simple_guess_base(cp);
@@ -71,58 +71,39 @@ unsigned long simple_strtoul(const char *cp, char **endp, unsigned int base)
 		result = result * base + value;
 		cp++;
 	}
-
 	if (endp)
 		*endp = (char *)cp;
+
 	return result;
 }
-EXPORT_SYMBOL(simple_strtoul);
+EXPORT_SYMBOL(simple_strtoull);
 
 /**
- * simple_strtol - convert a string to a signed long
+ * simple_strtoul - convert a string to an unsigned long
  * @cp: The start of the string
  * @endp: A pointer to the end of the parsed string will be placed here
  * @base: The number base to use
  */
-long simple_strtol(const char *cp, char **endp, unsigned int base)
+unsigned long simple_strtoul(const char *cp, char **endp, unsigned int base)
 {
-	if(*cp == '-')
-		return -simple_strtoul(cp + 1, endp, base);
-	return simple_strtoul(cp, endp, base);
+	return simple_strtoull(cp, endp, base);
 }
-EXPORT_SYMBOL(simple_strtol);
+EXPORT_SYMBOL(simple_strtoul);
 
 /**
- * simple_strtoull - convert a string to an unsigned long long
+ * simple_strtol - convert a string to a signed long
  * @cp: The start of the string
  * @endp: A pointer to the end of the parsed string will be placed here
  * @base: The number base to use
  */
-unsigned long long simple_strtoull(const char *cp, char **endp, unsigned int base)
+long simple_strtol(const char *cp, char **endp, unsigned int base)
 {
-	unsigned long long result = 0;
-
-	if (!base)
-		base = simple_guess_base(cp);
-
-	if (base == 16 && cp[0] == '0' && TOLOWER(cp[1]) == 'x')
-		cp += 2;
-
-	while (isxdigit(*cp)) {
-		unsigned int value;
-
-		value = isdigit(*cp) ? *cp - '0' : TOLOWER(*cp) - 'a' + 10;
-		if (value >= base)
-			break;
-		result = result * base + value;
-		cp++;
-	}
+	if (*cp == '-')
+		return -simple_strtoul(cp + 1, endp, base);
 
-	if (endp)
-		*endp = (char *)cp;
-	return result;
+	return simple_strtoul(cp, endp, base);
 }
-EXPORT_SYMBOL(simple_strtoull);
+EXPORT_SYMBOL(simple_strtol);
 
 /**
  * simple_strtoll - convert a string to a signed long long
@@ -132,8 +113,9 @@ EXPORT_SYMBOL(simple_strtoull);
  */
 long long simple_strtoll(const char *cp, char **endp, unsigned int base)
 {
-	if(*cp=='-')
+	if (*cp == '-')
 		return -simple_strtoull(cp + 1, endp, base);
+
 	return simple_strtoull(cp, endp, base);
 }
 
@@ -173,6 +155,7 @@ int strict_strtoul(const char *cp, unsigned int base, unsigned long *res)
 	val = simple_strtoul(cp, &tail, base);
 	if (tail == cp)
 		return -EINVAL;
+
 	if ((*tail == '\0') ||
 		((len == (size_t)(tail - cp) + 1) && (*tail == '\n'))) {
 		*res = val;
@@ -285,10 +268,11 @@ EXPORT_SYMBOL(strict_strtoll);
 
 static int skip_atoi(const char **s)
 {
-	int i=0;
+	int i = 0;
 
 	while (isdigit(**s))
 		i = i*10 + *((*s)++) - '0';
+
 	return i;
 }
 
@@ -302,7 +286,7 @@ static int skip_atoi(const char **s)
 /* Formats correctly any integer in [0,99999].
  * Outputs from one to five digits depending on input.
  * On i386 gcc 4.1.2 -O2: ~250 bytes of code. */
-static char* put_dec_trunc(char *buf, unsigned q)
+static char *put_dec_trunc(char *buf, unsigned q)
 {
 	unsigned d3, d2, d1, d0;
 	d1 = (q>>4) & 0xf;
@@ -331,14 +315,15 @@ static char* put_dec_trunc(char *buf, unsigned q)
 				d3 = d3 - 10*q;
 				*buf++ = d3 + '0';  /* next digit */
 				if (q != 0)
-					*buf++ = q + '0';  /* most sign. digit */
+					*buf++ = q + '0'; /* most sign. digit */
 			}
 		}
 	}
+
 	return buf;
 }
 /* Same with if's removed. Always emits five digits */
-static char* put_dec_full(char *buf, unsigned q)
+static char *put_dec_full(char *buf, unsigned q)
 {
 	/* BTW, if q is in [0,9999], 8-bit ints will be enough, */
 	/* but anyway, gcc produces better code with full-sized ints */
@@ -347,14 +332,15 @@ static char* put_dec_full(char *buf, unsigned q)
 	d2 = (q>>8) & 0xf;
 	d3 = (q>>12);
 
-	/* Possible ways to approx. divide by 10 */
-	/* gcc -O2 replaces multiply with shifts and adds */
-	// (x * 0xcd) >> 11: 11001101 - shorter code than * 0x67 (on i386)
-	// (x * 0x67) >> 10:  1100111
-	// (x * 0x34) >> 9:    110100 - same
-	// (x * 0x1a) >> 8:     11010 - same
-	// (x * 0x0d) >> 7:      1101 - same, shortest code (on i386)
-
+	/*
+	 * Possible ways to approx. divide by 10
+	 * gcc -O2 replaces multiply with shifts and adds
+	 * (x * 0xcd) >> 11: 11001101 - shorter code than * 0x67 (on i386)
+	 * (x * 0x67) >> 10:  1100111
+	 * (x * 0x34) >> 9:    110100 - same
+	 * (x * 0x1a) >> 8:     11010 - same
+	 * (x * 0x0d) >> 7:      1101 - same, shortest code (on i386)
+	 */
 	d0 = 6*(d3 + d2 + d1) + (q & 0xf);
 	q = (d0 * 0xcd) >> 11;
 	d0 = d0 - 10*q;
@@ -375,10 +361,11 @@ static char* put_dec_full(char *buf, unsigned q)
 				d3 = d3 - 10*q;
 				*buf++ = d3 + '0';
 					*buf++ = q + '0';
+
 	return buf;
 }
 /* No inlining helps gcc to use registers better */
-static noinline char* put_dec(char *buf, unsigned long long num)
+static noinline char *put_dec(char *buf, unsigned long long num)
 {
 	while (1) {
 		unsigned rem;
@@ -448,9 +435,9 @@ static char *number(char *buf, char *end, unsigned long long num,
 		spec.flags &= ~ZEROPAD;
 	sign = 0;
 	if (spec.flags & SIGN) {
-		if ((signed long long) num < 0) {
+		if ((signed long long)num < 0) {
 			sign = '-';
-			num = - (signed long long) num;
+			num = -(signed long long)num;
 			spec.field_width--;
 		} else if (spec.flags & PLUS) {
 			sign = '+';
@@ -478,7 +465,9 @@ static char *number(char *buf, char *end, unsigned long long num,
 	else if (spec.base != 10) { /* 8 or 16 */
 		int mask = spec.base - 1;
 		int shift = 3;
-		if (spec.base == 16) shift = 4;
+
+		if (spec.base == 16)
+			shift = 4;
 		do {
 			tmp[i++] = (digits[((unsigned char)num) & mask] | locase);
 			num >>= shift;
@@ -493,7 +482,7 @@ static char *number(char *buf, char *end, unsigned long long num,
 	/* leading space padding */
 	spec.field_width -= spec.precision;
 	if (!(spec.flags & (ZEROPAD+LEFT))) {
-		while(--spec.field_width >= 0) {
+		while (--spec.field_width >= 0) {
 			if (buf < end)
 				*buf = ' ';
 			++buf;
@@ -543,15 +532,16 @@ static char *number(char *buf, char *end, unsigned long long num,
 			*buf = ' ';
 		++buf;
 	}
+
 	return buf;
 }
 
-static char *string(char *buf, char *end, char *s, struct printf_spec spec)
+static char *string(char *buf, char *end, const char *s, struct printf_spec spec)
 {
 	int len, i;
 
 	if ((unsigned long)s < PAGE_SIZE)
-		s = "<NULL>";
+		s = "(null)";
 
 	len = strnlen(s, spec.precision);
 
@@ -572,6 +562,7 @@ static char *string(char *buf, char *end, char *s, struct printf_spec spec)
 			*buf = ' ';
 		++buf;
 	}
+
 	return buf;
 }
 
@@ -585,47 +576,101 @@ static char *symbol_string(char *buf, char *end, void *ptr,
 		sprint_symbol(sym, value);
 	else
 		kallsyms_lookup(value, NULL, NULL, NULL, sym);
+
 	return string(buf, end, sym, spec);
 #else
-	spec.field_width = 2*sizeof(void *);
+	spec.field_width = 2 * sizeof(void *);
 	spec.flags |= SPECIAL | SMALL | ZEROPAD;
 	spec.base = 16;
+
 	return number(buf, end, value, spec);
 #endif
 }
 
 static char *resource_string(char *buf, char *end, struct resource *res,
-				struct printf_spec spec)
+				struct printf_spec spec, const char *fmt)
 {
 #ifndef IO_RSRC_PRINTK_SIZE
-#define IO_RSRC_PRINTK_SIZE	4
+#define IO_RSRC_PRINTK_SIZE	6
 #endif
 
 #ifndef MEM_RSRC_PRINTK_SIZE
-#define MEM_RSRC_PRINTK_SIZE	8
+#define MEM_RSRC_PRINTK_SIZE	10
 #endif
-	struct printf_spec num_spec = {
+	struct printf_spec hex_spec = {
 		.base = 16,
 		.precision = -1,
 		.flags = SPECIAL | SMALL | ZEROPAD,
 	};
-	/* room for the actual numbers, the two "0x", -, [, ] and the final zero */
-	char sym[4*sizeof(resource_size_t) + 8];
+	struct printf_spec dec_spec = {
+		.base = 10,
+		.precision = -1,
+		.flags = 0,
+	};
+	struct printf_spec str_spec = {
+		.field_width = -1,
+		.precision = 10,
+		.flags = LEFT,
+	};
+	struct printf_spec flag_spec = {
+		.base = 16,
+		.precision = -1,
+		.flags = SPECIAL | SMALL,
+	};
+
+	/* 32-bit res (sizeof==4): 10 chars in dec, 10 in hex ("0x" + 8)
+	 * 64-bit res (sizeof==8): 20 chars in dec, 18 in hex ("0x" + 16) */
+#define RSRC_BUF_SIZE		((2 * sizeof(resource_size_t)) + 4)
+#define FLAG_BUF_SIZE		(2 * sizeof(res->flags))
+#define DECODED_BUF_SIZE	sizeof("[mem - 64bit pref disabled]")
+#define RAW_BUF_SIZE		sizeof("[mem - flags 0x]")
+	char sym[max(2*RSRC_BUF_SIZE + DECODED_BUF_SIZE,
+		     2*RSRC_BUF_SIZE + FLAG_BUF_SIZE + RAW_BUF_SIZE)];
+
 	char *p = sym, *pend = sym + sizeof(sym);
-	int size = -1;
+	int size = -1, addr = 0;
+	int decode = (fmt[0] == 'R') ? 1 : 0;
 
-	if (res->flags & IORESOURCE_IO)
+	if (res->flags & IORESOURCE_IO) {
 		size = IO_RSRC_PRINTK_SIZE;
-	else if (res->flags & IORESOURCE_MEM)
+		addr = 1;
+	} else if (res->flags & IORESOURCE_MEM) {
 		size = MEM_RSRC_PRINTK_SIZE;
+		addr = 1;
+	}
 
 	*p++ = '[';
-	num_spec.field_width = size;
-	p = number(p, pend, res->start, num_spec);
-	*p++ = '-';
-	p = number(p, pend, res->end, num_spec);
+	if (res->flags & IORESOURCE_IO)
+		p = string(p, pend, "io  ", str_spec);
+	else if (res->flags & IORESOURCE_MEM)
+		p = string(p, pend, "mem ", str_spec);
+	else if (res->flags & IORESOURCE_IRQ)
+		p = string(p, pend, "irq ", str_spec);
+	else if (res->flags & IORESOURCE_DMA)
+		p = string(p, pend, "dma ", str_spec);
+	else {
+		p = string(p, pend, "??? ", str_spec);
+		decode = 0;
+	}
+	hex_spec.field_width = size;
+	p = number(p, pend, res->start, addr ? hex_spec : dec_spec);
+	if (res->start != res->end) {
+		*p++ = '-';
+		p = number(p, pend, res->end, addr ? hex_spec : dec_spec);
+	}
+	if (decode) {
+		if (res->flags & IORESOURCE_MEM_64)
+			p = string(p, pend, " 64bit", str_spec);
+		if (res->flags & IORESOURCE_PREFETCH)
+			p = string(p, pend, " pref", str_spec);
+		if (res->flags & IORESOURCE_DISABLED)
+			p = string(p, pend, " disabled", str_spec);
+	} else {
+		p = string(p, pend, " flags ", str_spec);
+		p = number(p, pend, res->flags, flag_spec);
+	}
 	*p++ = ']';
-	*p = 0;
+	*p = '\0';
 
 	return string(buf, end, sym, spec);
 }
@@ -666,22 +711,19 @@ static char *ip4_string(char *p, const u8 *addr, bool leading_zeros)
 		if (i < 3)
 			*p++ = '.';
 	}
-
 	*p = '\0';
+
 	return p;
 }
 
 static char *ip6_compressed_string(char *p, const char *addr)
 {
-	int i;
-	int j;
-	int range;
+	int i, j, range;
 	unsigned char zerolength[8];
 	int longest = 1;
 	int colonpos = -1;
 	u16 word;
-	u8 hi;
-	u8 lo;
+	u8 hi, lo;
 	bool needcolon = false;
 	bool useIPv4;
 	struct in6_addr in6;
@@ -735,8 +777,9 @@ static char *ip6_compressed_string(char *p, const char *addr)
 				p = pack_hex_byte(p, hi);
 			else
 				*p++ = hex_asc_lo(hi);
+			p = pack_hex_byte(p, lo);
 		}
-		if (hi || lo > 0x0f)
+		else if (lo > 0x0f)
 			p = pack_hex_byte(p, lo);
 		else
 			*p++ = hex_asc_lo(lo);
@@ -748,22 +791,23 @@ static char *ip6_compressed_string(char *p, const char *addr)
 			*p++ = ':';
 		p = ip4_string(p, &in6.s6_addr[12], false);
 	}
-
 	*p = '\0';
+
 	return p;
 }
 
 static char *ip6_string(char *p, const char *addr, const char *fmt)
 {
 	int i;
+
 	for (i = 0; i < 8; i++) {
 		p = pack_hex_byte(p, *addr++);
 		p = pack_hex_byte(p, *addr++);
 		if (fmt[0] == 'I' && i != 7)
 			*p++ = ':';
 	}
-
 	*p = '\0';
+
 	return p;
 }
 
@@ -790,6 +834,52 @@ static char *ip4_addr_string(char *buf, char *end, const u8 *addr,
 	return string(buf, end, ip4_addr, spec);
 }
 
+static char *uuid_string(char *buf, char *end, const u8 *addr,
+			 struct printf_spec spec, const char *fmt)
+{
+	char uuid[sizeof("xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx")];
+	char *p = uuid;
+	int i;
+	static const u8 be[16] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
+	static const u8 le[16] = {3,2,1,0,5,4,7,6,8,9,10,11,12,13,14,15};
+	const u8 *index = be;
+	bool uc = false;
+
+	switch (*(++fmt)) {
+	case 'L':
+		uc = true;		/* fall-through */
+	case 'l':
+		index = le;
+		break;
+	case 'B':
+		uc = true;
+		break;
+	}
+
+	for (i = 0; i < 16; i++) {
+		p = pack_hex_byte(p, addr[index[i]]);
+		switch (i) {
+		case 3:
+		case 5:
+		case 7:
+		case 9:
+			*p++ = '-';
+			break;
+		}
+	}
+
+	*p = 0;
+
+	if (uc) {
+		p = uuid;
+		do {
+			*p = toupper(*p);
+		} while (*(++p));
+	}
+
+	return string(buf, end, uuid, spec);
+}
+
 /*
  * Show a '%p' thing.  A kernel extension is that the '%p' is followed
  * by an extra set of alphanumeric characters that are extended format
@@ -801,8 +891,8 @@ static char *ip4_addr_string(char *buf, char *end, const u8 *addr,
  * - 'f' For simple symbolic function names without offset
  * - 'S' For symbolic direct pointers with offset
  * - 's' For symbolic direct pointers without offset
- * - 'R' For a struct resource pointer, it prints the range of
- *       addresses (not the name nor the flags)
+ * - 'R' For decoded struct resource, e.g., [mem 0x0-0x1f 64bit pref]
+ * - 'r' For raw struct resource, e.g., [mem 0x0-0x1f flags 0x201]
  * - 'M' For a 6-byte MAC address, it prints the address in the
  *       usual colon-separated hex notation
  * - 'm' For a 6-byte MAC address, it prints the hex address without colons
@@ -814,6 +904,18 @@ static char *ip4_addr_string(char *buf, char *end, const u8 *addr,
  *       IPv4 uses dot-separated decimal with leading 0's (010.123.045.006)
  * - 'I6c' for IPv6 addresses printed as specified by
  *       http://www.ietf.org/id/draft-kawamura-ipv6-text-representation-03.txt
+ * - 'U' For a 16 byte UUID/GUID, it prints the UUID/GUID in the form
+ *       "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
+ *       Options for %pU are:
+ *         b big endian lower case hex (default)
+ *         B big endian UPPER case hex
+ *         l little endian lower case hex
+ *         L little endian UPPER case hex
+ *           big endian output byte order is:
+ *             [0][1][2][3]-[4][5]-[6][7]-[8][9]-[10][11][12][13][14][15]
+ *           little endian output byte order is:
+ *             [3][2][1][0]-[5][4]-[7][6]-[8][9]-[10][11][12][13][14][15]
+ *
  * Note: The difference between 'S' and 'F' is that on ia64 and ppc64
  * function pointers are really function descriptors, which contain a
  * pointer to the real address.
@@ -828,12 +930,13 @@ static char *pointer(const char *fmt, char *buf, char *end, void *ptr,
 	case 'F':
 	case 'f':
 		ptr = dereference_function_descriptor(ptr);
-	case 's':
 		/* Fallthrough */
 	case 'S':
+	case 's':
 		return symbol_string(buf, end, ptr, spec, *fmt);
 	case 'R':
-		return resource_string(buf, end, ptr, spec);
+	case 'r':
+		return resource_string(buf, end, ptr, spec, fmt);
 	case 'M':			/* Colon separated: 00:01:02:03:04:05 */
 	case 'm':			/* Contiguous: 000102030405 */
 		return mac_address_string(buf, end, ptr, spec, fmt);
@@ -853,6 +956,8 @@ static char *pointer(const char *fmt, char *buf, char *end, void *ptr,
 			return ip4_addr_string(buf, end, ptr, spec, fmt);
 		}
 		break;
+	case 'U':
+		return uuid_string(buf, end, ptr, spec, fmt);
 	}
 	spec.flags |= SMALL;
 	if (spec.field_width == -1) {
@@ -970,8 +1075,8 @@ precision:
 qualifier:
 	/* get the conversion qualifier */
 	spec->qualifier = -1;
-	if (*fmt == 'h' || *fmt == 'l' || *fmt == 'L' ||
-	    *fmt == 'Z' || *fmt == 'z' || *fmt == 't') {
+	if (*fmt == 'h' || TOLOWER(*fmt) == 'l' ||
+	    TOLOWER(*fmt) == 'z' || *fmt == 't') {
 		spec->qualifier = *fmt++;
 		if (unlikely(spec->qualifier == *fmt)) {
 			if (spec->qualifier == 'l') {
@@ -1038,7 +1143,7 @@ qualifier:
 			spec->type = FORMAT_TYPE_LONG;
 		else
 			spec->type = FORMAT_TYPE_ULONG;
-	} else if (spec->qualifier == 'Z' || spec->qualifier == 'z') {
+	} else if (TOLOWER(spec->qualifier) == 'z') {
 		spec->type = FORMAT_TYPE_SIZE_T;
 	} else if (spec->qualifier == 't') {
 		spec->type = FORMAT_TYPE_PTRDIFF;
@@ -1074,7 +1179,18 @@ qualifier:
  * %ps output the name of a text symbol without offset
  * %pF output the name of a function pointer with its offset
  * %pf output the name of a function pointer without its offset
- * %pR output the address range in a struct resource
+ * %pR output the address range in a struct resource with decoded flags
+ * %pr output the address range in a struct resource with raw flags
+ * %pM output a 6-byte MAC address with colons
+ * %pm output a 6-byte MAC address without colons
+ * %pI4 print an IPv4 address without leading zeros
+ * %pi4 print an IPv4 address with leading zeros
+ * %pI6 print an IPv6 address with colons
+ * %pi6 print an IPv6 address without colons
+ * %pI6c print an IPv6 address as specified by
+ *   http://www.ietf.org/id/draft-kawamura-ipv6-text-representation-03.txt
+ * %pU[bBlL] print a UUID/GUID in big or little endian using lower or upper
+ *   case.
  * %n is ignored
  *
  * The return value is the number of characters which would
@@ -1091,8 +1207,7 @@ qualifier:
 int vsnprintf(char *buf, size_t size, const char *fmt, va_list args)
 {
 	unsigned long long num;
-	char *str, *end, c;
-	int read;
+	char *str, *end;
 	struct printf_spec spec = {0};
 
 	/* Reject out-of-range values early.  Large positive sizes are
@@ -1111,8 +1226,7 @@ int vsnprintf(char *buf, size_t size, const char *fmt, va_list args)
 
 	while (*fmt) {
 		const char *old_fmt = fmt;
-
-		read = format_decode(fmt, &spec);
+		int read = format_decode(fmt, &spec);
 
 		fmt += read;
 
@@ -1136,7 +1250,9 @@ int vsnprintf(char *buf, size_t size, const char *fmt, va_list args)
 			spec.precision = va_arg(args, int);
 			break;
 
-		case FORMAT_TYPE_CHAR:
+		case FORMAT_TYPE_CHAR: {
+			char c;
+
 			if (!(spec.flags & LEFT)) {
 				while (--spec.field_width > 0) {
 					if (str < end)
@@ -1155,6 +1271,7 @@ int vsnprintf(char *buf, size_t size, const char *fmt, va_list args)
 				++str;
 			}
 			break;
+		}
 
 		case FORMAT_TYPE_STR:
 			str = string(str, end, va_arg(args, char *), spec);
@@ -1185,8 +1302,7 @@ int vsnprintf(char *buf, size_t size, const char *fmt, va_list args)
 			if (qualifier == 'l') {
 				long *ip = va_arg(args, long *);
 				*ip = (str - buf);
-			} else if (qualifier == 'Z' ||
-					qualifier == 'z') {
+			} else if (TOLOWER(qualifier) == 'z') {
 				size_t *ip = va_arg(args, size_t *);
 				*ip = (str - buf);
 			} else {
@@ -1269,7 +1385,8 @@ int vscnprintf(char *buf, size_t size, const char *fmt, va_list args)
 {
 	int i;
 
-	i=vsnprintf(buf,size,fmt,args);
+	i = vsnprintf(buf, size, fmt, args);
+
 	return (i >= size) ? (size - 1) : i;
 }
 EXPORT_SYMBOL(vscnprintf);
@@ -1288,14 +1405,15 @@ EXPORT_SYMBOL(vscnprintf);
  *
  * See the vsnprintf() documentation for format string extensions over C99.
  */
-int snprintf(char * buf, size_t size, const char *fmt, ...)
+int snprintf(char *buf, size_t size, const char *fmt, ...)
 {
 	va_list args;
 	int i;
 
 	va_start(args, fmt);
-	i=vsnprintf(buf,size,fmt,args);
+	i = vsnprintf(buf, size, fmt, args);
 	va_end(args);
+
 	return i;
 }
 EXPORT_SYMBOL(snprintf);
@@ -1311,7 +1429,7 @@ EXPORT_SYMBOL(snprintf);
  * the trailing '\0'. If @size is <= 0 the function returns 0.
  */
 
-int scnprintf(char * buf, size_t size, const char *fmt, ...)
+int scnprintf(char *buf, size_t size, const char *fmt, ...)
 {
 	va_list args;
 	int i;
@@ -1319,6 +1437,7 @@ int scnprintf(char * buf, size_t size, const char *fmt, ...)
 	va_start(args, fmt);
 	i = vsnprintf(buf, size, fmt, args);
 	va_end(args);
+
 	return (i >= size) ? (size - 1) : i;
 }
 EXPORT_SYMBOL(scnprintf);
@@ -1356,14 +1475,15 @@ EXPORT_SYMBOL(vsprintf);
  *
  * See the vsnprintf() documentation for format string extensions over C99.
  */
-int sprintf(char * buf, const char *fmt, ...)
+int sprintf(char *buf, const char *fmt, ...)
 {
 	va_list args;
 	int i;
 
 	va_start(args, fmt);
-	i=vsnprintf(buf, INT_MAX, fmt, args);
+	i = vsnprintf(buf, INT_MAX, fmt, args);
 	va_end(args);
+
 	return i;
 }
 EXPORT_SYMBOL(sprintf);
@@ -1396,7 +1516,6 @@ int vbin_printf(u32 *bin_buf, size_t size, const char *fmt, va_list args)
 {
 	struct printf_spec spec = {0};
 	char *str, *end;
-	int read;
 
 	str = (char *)bin_buf;
 	end = (char *)(bin_buf + size);
@@ -1421,14 +1540,15 @@ do {									\
 	str += sizeof(type);						\
 } while (0)
 
-
 	while (*fmt) {
-		read = format_decode(fmt, &spec);
+		int read = format_decode(fmt, &spec);
 
 		fmt += read;
 
 		switch (spec.type) {
 		case FORMAT_TYPE_NONE:
+		case FORMAT_TYPE_INVALID:
+		case FORMAT_TYPE_PERCENT_CHAR:
 			break;
 
 		case FORMAT_TYPE_WIDTH:
@@ -1443,13 +1563,14 @@ do {									\
 		case FORMAT_TYPE_STR: {
 			const char *save_str = va_arg(args, char *);
 			size_t len;
+
 			if ((unsigned long)save_str > (unsigned long)-PAGE_SIZE
 					|| (unsigned long)save_str < PAGE_SIZE)
-				save_str = "<NULL>";
-			len = strlen(save_str);
-			if (str + len + 1 < end)
-				memcpy(str, save_str, len + 1);
-			str += len + 1;
+				save_str = "(null)";
+			len = strlen(save_str) + 1;
+			if (str + len < end)
+				memcpy(str, save_str, len);
+			str += len;
 			break;
 		}
 
@@ -1460,19 +1581,13 @@ do {									\
 				fmt++;
 			break;
 
-		case FORMAT_TYPE_PERCENT_CHAR:
-			break;
-
-		case FORMAT_TYPE_INVALID:
-			break;
-
 		case FORMAT_TYPE_NRCHARS: {
 			/* skip %n 's argument */
 			int qualifier = spec.qualifier;
 			void *skip_arg;
 			if (qualifier == 'l')
 				skip_arg = va_arg(args, long *);
-			else if (qualifier == 'Z' || qualifier == 'z')
+			else if (TOLOWER(qualifier) == 'z')
 				skip_arg = va_arg(args, size_t *);
 			else
 				skip_arg = va_arg(args, int *);
@@ -1508,8 +1623,8 @@ do {									\
 			}
 		}
 	}
-	return (u32 *)(PTR_ALIGN(str, sizeof(u32))) - bin_buf;
 
+	return (u32 *)(PTR_ALIGN(str, sizeof(u32))) - bin_buf;
 #undef save_arg
 }
 EXPORT_SYMBOL_GPL(vbin_printf);
@@ -1538,11 +1653,9 @@ EXPORT_SYMBOL_GPL(vbin_printf);
  */
 int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf)
 {
-	unsigned long long num;
-	char *str, *end, c;
-	const char *args = (const char *)bin_buf;
-
 	struct printf_spec spec = {0};
+	char *str, *end;
+	const char *args = (const char *)bin_buf;
 
 	if (WARN_ON_ONCE((int) size < 0))
 		return 0;
@@ -1572,10 +1685,8 @@ int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf)
 	}
 
 	while (*fmt) {
-		int read;
 		const char *old_fmt = fmt;
-
-		read = format_decode(fmt, &spec);
+		int read = format_decode(fmt, &spec);
 
 		fmt += read;
 
@@ -1599,7 +1710,9 @@ int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf)
 			spec.precision = get_arg(int);
 			break;
 
-		case FORMAT_TYPE_CHAR:
+		case FORMAT_TYPE_CHAR: {
+			char c;
+
 			if (!(spec.flags & LEFT)) {
 				while (--spec.field_width > 0) {
 					if (str < end)
@@ -1617,11 +1730,11 @@ int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf)
 				++str;
 			}
 			break;
+		}
 
 		case FORMAT_TYPE_STR: {
 			const char *str_arg = args;
-			size_t len = strlen(str_arg);
-			args += len + 1;
+			args += strlen(str_arg) + 1;
 			str = string(str, end, (char *)str_arg, spec);
 			break;
 		}
@@ -1633,11 +1746,6 @@ int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf)
 			break;
 
 		case FORMAT_TYPE_PERCENT_CHAR:
-			if (str < end)
-				*str = '%';
-			++str;
-			break;
-
 		case FORMAT_TYPE_INVALID:
 			if (str < end)
 				*str = '%';
@@ -1648,15 +1756,15 @@ int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf)
 			/* skip */
 			break;
 
-		default:
+		default: {
+			unsigned long long num;
+
 			switch (spec.type) {
 
 			case FORMAT_TYPE_LONG_LONG:
 				num = get_arg(long long);
 				break;
 			case FORMAT_TYPE_ULONG:
-				num = get_arg(unsigned long);
-				break;
 			case FORMAT_TYPE_LONG:
 				num = get_arg(unsigned long);
 				break;
@@ -1686,8 +1794,9 @@ int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf)
 			}
 
 			str = number(str, end, num, spec);
-		}
-	}
+		} /* default: */
+		} /* switch(spec.type) */
+	} /* while(*fmt) */
 
 	if (size > 0) {
 		if (str < end)
@@ -1721,6 +1830,7 @@ int bprintf(u32 *bin_buf, size_t size, const char *fmt, ...)
 	va_start(args, fmt);
 	ret = vbin_printf(bin_buf, size, fmt, args);
 	va_end(args);
+
 	return ret;
 }
 EXPORT_SYMBOL_GPL(bprintf);
@@ -1733,27 +1843,23 @@ EXPORT_SYMBOL_GPL(bprintf);
  * @fmt:	format of buffer
  * @args:	arguments
  */
-int vsscanf(const char * buf, const char * fmt, va_list args)
+int vsscanf(const char *buf, const char *fmt, va_list args)
 {
 	const char *str = buf;
 	char *next;
 	char digit;
 	int num = 0;
-	int qualifier;
-	int base;
-	int field_width;
-	int is_sign = 0;
+	int qualifier, base, field_width;
+	bool is_sign;
 
-	while(*fmt && *str) {
+	while (*fmt && *str) {
 		/* skip any white space in format */
 		/* white space in format matchs any amount of
 		 * white space, including none, in the input.
 		 */
 		if (isspace(*fmt)) {
-			while (isspace(*fmt))
-				++fmt;
-			while (isspace(*str))
-				++str;
+			fmt = skip_spaces(++fmt);
+			str = skip_spaces(str);
 		}
 
 		/* anything that is not a conversion must match exactly */
@@ -1766,7 +1872,7 @@ int vsscanf(const char * buf, const char * fmt, va_list args)
 		if (!*fmt)
 			break;
 		++fmt;
-		
+
 		/* skip this conversion.
 		 * advance both strings to next white space
 		 */
@@ -1785,8 +1891,8 @@ int vsscanf(const char * buf, const char * fmt, va_list args)
 
 		/* get conversion qualifier */
 		qualifier = -1;
-		if (*fmt == 'h' || *fmt == 'l' || *fmt == 'L' ||
-		    *fmt == 'Z' || *fmt == 'z') {
+		if (*fmt == 'h' || TOLOWER(*fmt) == 'l' ||
+		    TOLOWER(*fmt) == 'z') {
 			qualifier = *fmt++;
 			if (unlikely(qualifier == *fmt)) {
 				if (qualifier == 'h') {
@@ -1798,16 +1904,17 @@ int vsscanf(const char * buf, const char * fmt, va_list args)
 				}
 			}
 		}
-		base = 10;
-		is_sign = 0;
 
 		if (!*fmt || !*str)
 			break;
 
-		switch(*fmt++) {
+		base = 10;
+		is_sign = 0;
+
+		switch (*fmt++) {
 		case 'c':
 		{
-			char *s = (char *) va_arg(args,char*);
+			char *s = (char *)va_arg(args, char*);
 			if (field_width == -1)
 				field_width = 1;
 			do {
@@ -1818,17 +1925,15 @@ int vsscanf(const char * buf, const char * fmt, va_list args)
 		continue;
 		case 's':
 		{
-			char *s = (char *) va_arg(args, char *);
-			if(field_width == -1)
+			char *s = (char *)va_arg(args, char *);
+			if (field_width == -1)
 				field_width = INT_MAX;
 			/* first, skip leading white space in buffer */
-			while (isspace(*str))
-				str++;
+			str = skip_spaces(str);
 
 			/* now copy until next white space */
-			while (*str && !isspace(*str) && field_width--) {
+			while (*str && !isspace(*str) && field_width--)
 				*s++ = *str++;
-			}
 			*s = '\0';
 			num++;
 		}
@@ -1836,7 +1941,7 @@ int vsscanf(const char * buf, const char * fmt, va_list args)
 		case 'n':
 			/* return number of characters read so far */
 		{
-			int *i = (int *)va_arg(args,int*);
+			int *i = (int *)va_arg(args, int*);
 			*i = str - buf;
 		}
 		continue;
@@ -1848,14 +1953,14 @@ int vsscanf(const char * buf, const char * fmt, va_list args)
 			base = 16;
 			break;
 		case 'i':
-                        base = 0;
+			base = 0;
 		case 'd':
 			is_sign = 1;
 		case 'u':
 			break;
 		case '%':
 			/* looking for '%' in str */
-			if (*str++ != '%') 
+			if (*str++ != '%')
 				return num;
 			continue;
 		default:
@@ -1866,71 +1971,70 @@ int vsscanf(const char * buf, const char * fmt, va_list args)
 		/* have some sort of integer conversion.
 		 * first, skip white space in buffer.
 		 */
-		while (isspace(*str))
-			str++;
+		str = skip_spaces(str);
 
 		digit = *str;
 		if (is_sign && digit == '-')
 			digit = *(str + 1);
 
 		if (!digit
-                    || (base == 16 && !isxdigit(digit))
-                    || (base == 10 && !isdigit(digit))
-                    || (base == 8 && (!isdigit(digit) || digit > '7'))
-                    || (base == 0 && !isdigit(digit)))
-				break;
+		    || (base == 16 && !isxdigit(digit))
+		    || (base == 10 && !isdigit(digit))
+		    || (base == 8 && (!isdigit(digit) || digit > '7'))
+		    || (base == 0 && !isdigit(digit)))
+			break;
 
-		switch(qualifier) {
+		switch (qualifier) {
 		case 'H':	/* that's 'hh' in format */
 			if (is_sign) {
-				signed char *s = (signed char *) va_arg(args,signed char *);
-				*s = (signed char) simple_strtol(str,&next,base);
+				signed char *s = (signed char *)va_arg(args, signed char *);
+				*s = (signed char)simple_strtol(str, &next, base);
 			} else {
-				unsigned char *s = (unsigned char *) va_arg(args, unsigned char *);
-				*s = (unsigned char) simple_strtoul(str, &next, base);
+				unsigned char *s = (unsigned char *)va_arg(args, unsigned char *);
+				*s = (unsigned char)simple_strtoul(str, &next, base);
 			}
 			break;
 		case 'h':
 			if (is_sign) {
-				short *s = (short *) va_arg(args,short *);
-				*s = (short) simple_strtol(str,&next,base);
+				short *s = (short *)va_arg(args, short *);
+				*s = (short)simple_strtol(str, &next, base);
 			} else {
-				unsigned short *s = (unsigned short *) va_arg(args, unsigned short *);
-				*s = (unsigned short) simple_strtoul(str, &next, base);
+				unsigned short *s = (unsigned short *)va_arg(args, unsigned short *);
+				*s = (unsigned short)simple_strtoul(str, &next, base);
 			}
 			break;
 		case 'l':
 			if (is_sign) {
-				long *l = (long *) va_arg(args,long *);
-				*l = simple_strtol(str,&next,base);
+				long *l = (long *)va_arg(args, long *);
+				*l = simple_strtol(str, &next, base);
 			} else {
-				unsigned long *l = (unsigned long*) va_arg(args,unsigned long*);
-				*l = simple_strtoul(str,&next,base);
+				unsigned long *l = (unsigned long *)va_arg(args, unsigned long *);
+				*l = simple_strtoul(str, &next, base);
 			}
 			break;
 		case 'L':
 			if (is_sign) {
-				long long *l = (long long*) va_arg(args,long long *);
-				*l = simple_strtoll(str,&next,base);
+				long long *l = (long long *)va_arg(args, long long *);
+				*l = simple_strtoll(str, &next, base);
 			} else {
-				unsigned long long *l = (unsigned long long*) va_arg(args,unsigned long long*);
-				*l = simple_strtoull(str,&next,base);
+				unsigned long long *l = (unsigned long long *)va_arg(args, unsigned long long *);
+				*l = simple_strtoull(str, &next, base);
 			}
 			break;
 		case 'Z':
 		case 'z':
 		{
-			size_t *s = (size_t*) va_arg(args,size_t*);
-			*s = (size_t) simple_strtoul(str,&next,base);
+			size_t *s = (size_t *)va_arg(args, size_t *);
+			*s = (size_t)simple_strtoul(str, &next, base);
 		}
 		break;
 		default:
 			if (is_sign) {
-				int *i = (int *) va_arg(args, int*);
-				*i = (int) simple_strtol(str,&next,base);
+				int *i = (int *)va_arg(args, int *);
+				*i = (int)simple_strtol(str, &next, base);
 			} else {
-				unsigned int *i = (unsigned int*) va_arg(args, unsigned int*);
-				*i = (unsigned int) simple_strtoul(str,&next,base);
+				unsigned int *i = (unsigned int *)va_arg(args, unsigned int*);
+				*i = (unsigned int)simple_strtoul(str, &next, base);
 			}
 			break;
 		}
@@ -1961,14 +2065,15 @@ EXPORT_SYMBOL(vsscanf);
  * @fmt:	formatting of buffer
  * @...:	resulting arguments
  */
-int sscanf(const char * buf, const char * fmt, ...)
+int sscanf(const char *buf, const char *fmt, ...)
 {
 	va_list args;
 	int i;
 
-	va_start(args,fmt);
-	i = vsscanf(buf,fmt,args);
+	va_start(args, fmt);
+	i = vsscanf(buf, fmt, args);
 	va_end(args);
+
 	return i;
 }
 EXPORT_SYMBOL(sscanf);