commit d05be13bcc6ec615fb2e9556a9b85d52800669b6
author Jiri Slaby <jirislaby@gmail.com> Thu Oct 18 23:40:31 2007 -0700
committer Linus Torvalds <torvalds@woody.linux-foundation.org> Fri Oct 19 11:53:42 2007 -0700
tree e75cee7b28e2a22d94f29fdd44746ea14f4fc6b8
parent 5159f40742508e03aed4273a9b3ef06f4e71929f

define first set of BIT* macros

define first set of BIT* macros

- move BITOP_MASK and BITOP_WORD from asm-generic/bitops/atomic.h to
  include/linux/bitops.h and rename it to BIT_MASK and BIT_WORD
- move BITS_TO_LONGS and BITS_PER_BYTE to bitops.h too and allow easily
  define another BITS_TO_something (e.g. in event.c) by BITS_TO_TYPE macro
Remaining (and common) BIT macro will be defined after all occurences and
conflicts will be sorted out in the patches.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

include/asm-generic/bitops/atomic.h

diff --git a/include/asm-generic/bitops/atomic.h b/include/asm-generic/bitops/atomic.h
index cd8a964..4657f3e 100644
--- a/include/asm-generic/bitops/atomic.h
+++ b/include/asm-generic/bitops/atomic.h
@@ -3,9 +3,6 @@
 
 #include <asm/types.h>
 
-#define BITOP_MASK(nr)		(1UL << ((nr) % BITS_PER_LONG))
-#define BITOP_WORD(nr)		((nr) / BITS_PER_LONG)
-
 #ifdef CONFIG_SMP
 #include <asm/spinlock.h>
 #include <asm/cache.h>		/* we use L1_CACHE_BYTES */
@@ -66,8 +63,8 @@
  */
 static inline void set_bit(int nr, volatile unsigned long *addr)
 {
-	unsigned long mask = BITOP_MASK(nr);
-	unsigned long *p = ((unsigned long *)addr) + BITOP_WORD(nr);
+	unsigned long mask = BIT_MASK(nr);
+	unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
 	unsigned long flags;
 
 	_atomic_spin_lock_irqsave(p, flags);
@@ -87,8 +84,8 @@
  */
 static inline void clear_bit(int nr, volatile unsigned long *addr)
 {
-	unsigned long mask = BITOP_MASK(nr);
-	unsigned long *p = ((unsigned long *)addr) + BITOP_WORD(nr);
+	unsigned long mask = BIT_MASK(nr);
+	unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
 	unsigned long flags;
 
 	_atomic_spin_lock_irqsave(p, flags);
@@ -108,8 +105,8 @@
  */
 static inline void change_bit(int nr, volatile unsigned long *addr)
 {
-	unsigned long mask = BITOP_MASK(nr);
-	unsigned long *p = ((unsigned long *)addr) + BITOP_WORD(nr);
+	unsigned long mask = BIT_MASK(nr);
+	unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
 	unsigned long flags;
 
 	_atomic_spin_lock_irqsave(p, flags);
@@ -128,8 +125,8 @@
  */
 static inline int test_and_set_bit(int nr, volatile unsigned long *addr)
 {
-	unsigned long mask = BITOP_MASK(nr);
-	unsigned long *p = ((unsigned long *)addr) + BITOP_WORD(nr);
+	unsigned long mask = BIT_MASK(nr);
+	unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
 	unsigned long old;
 	unsigned long flags;
 
@@ -152,8 +149,8 @@
  */
 static inline int test_and_clear_bit(int nr, volatile unsigned long *addr)
 {
-	unsigned long mask = BITOP_MASK(nr);
-	unsigned long *p = ((unsigned long *)addr) + BITOP_WORD(nr);
+	unsigned long mask = BIT_MASK(nr);
+	unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
 	unsigned long old;
 	unsigned long flags;
 
@@ -175,8 +172,8 @@
  */
 static inline int test_and_change_bit(int nr, volatile unsigned long *addr)
 {
-	unsigned long mask = BITOP_MASK(nr);
-	unsigned long *p = ((unsigned long *)addr) + BITOP_WORD(nr);
+	unsigned long mask = BIT_MASK(nr);
+	unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
 	unsigned long old;
 	unsigned long flags;