From 5136dea5734cfddbc6d7ccb7ead85a3ac7ce3de2 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Wed, 14 May 2008 16:10:41 -0700 Subject: [PATCH] x86: bitops take an unsigned long * All (or most) other architectures do this. So should x86. Fix. Cc: Andrea Arcangeli Signed-off-by: Andrew Morton Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- include/asm-x86/bitops.h | 34 +++++++++++++++++----------------- 1 file changed, 17 insertions(+), 17 deletions(-) diff --git a/include/asm-x86/bitops.h b/include/asm-x86/bitops.h index ee4b3ead6a43..7d2494bdc660 100644 --- a/include/asm-x86/bitops.h +++ b/include/asm-x86/bitops.h @@ -43,7 +43,7 @@ * Note that @nr may be almost arbitrarily large; this function is not * restricted to acting on a single-word quantity. */ -static inline void set_bit(int nr, volatile void *addr) +static inline void set_bit(int nr, volatile unsigned long *addr) { asm volatile(LOCK_PREFIX "bts %1,%0" : ADDR : "Ir" (nr) : "memory"); } @@ -57,7 +57,7 @@ static inline void set_bit(int nr, volatile void *addr) * If it's called on the same region of memory simultaneously, the effect * may be that only one operation succeeds. */ -static inline void __set_bit(int nr, volatile void *addr) +static inline void __set_bit(int nr, volatile unsigned long *addr) { asm volatile("bts %1,%0" : ADDR : "Ir" (nr) : "memory"); } @@ -72,7 +72,7 @@ static inline void __set_bit(int nr, volatile void *addr) * you should call smp_mb__before_clear_bit() and/or smp_mb__after_clear_bit() * in order to ensure changes are visible on other processors. */ -static inline void clear_bit(int nr, volatile void *addr) +static inline void clear_bit(int nr, volatile unsigned long *addr) { asm volatile(LOCK_PREFIX "btr %1,%0" : ADDR : "Ir" (nr)); } @@ -85,13 +85,13 @@ static inline void clear_bit(int nr, volatile void *addr) * clear_bit() is atomic and implies release semantics before the memory * operation. It can be used for an unlock. */ -static inline void clear_bit_unlock(unsigned nr, volatile void *addr) +static inline void clear_bit_unlock(unsigned nr, volatile unsigned long *addr) { barrier(); clear_bit(nr, addr); } -static inline void __clear_bit(int nr, volatile void *addr) +static inline void __clear_bit(int nr, volatile unsigned long *addr) { asm volatile("btr %1,%0" : ADDR : "Ir" (nr)); } @@ -108,7 +108,7 @@ static inline void __clear_bit(int nr, volatile void *addr) * No memory barrier is required here, because x86 cannot reorder stores past * older loads. Same principle as spin_unlock. */ -static inline void __clear_bit_unlock(unsigned nr, volatile void *addr) +static inline void __clear_bit_unlock(unsigned nr, volatile unsigned long *addr) { barrier(); __clear_bit(nr, addr); @@ -126,7 +126,7 @@ static inline void __clear_bit_unlock(unsigned nr, volatile void *addr) * If it's called on the same region of memory simultaneously, the effect * may be that only one operation succeeds. */ -static inline void __change_bit(int nr, volatile void *addr) +static inline void __change_bit(int nr, volatile unsigned long *addr) { asm volatile("btc %1,%0" : ADDR : "Ir" (nr)); } @@ -140,7 +140,7 @@ static inline void __change_bit(int nr, volatile void *addr) * Note that @nr may be almost arbitrarily large; this function is not * restricted to acting on a single-word quantity. */ -static inline void change_bit(int nr, volatile void *addr) +static inline void change_bit(int nr, volatile unsigned long *addr) { asm volatile(LOCK_PREFIX "btc %1,%0" : ADDR : "Ir" (nr)); } @@ -153,7 +153,7 @@ static inline void change_bit(int nr, volatile void *addr) * This operation is atomic and cannot be reordered. * It also implies a memory barrier. */ -static inline int test_and_set_bit(int nr, volatile void *addr) +static inline int test_and_set_bit(int nr, volatile unsigned long *addr) { int oldbit; @@ -170,7 +170,7 @@ static inline int test_and_set_bit(int nr, volatile void *addr) * * This is the same as test_and_set_bit on x86. */ -static inline int test_and_set_bit_lock(int nr, volatile void *addr) +static inline int test_and_set_bit_lock(int nr, volatile unsigned long *addr) { return test_and_set_bit(nr, addr); } @@ -184,7 +184,7 @@ static inline int test_and_set_bit_lock(int nr, volatile void *addr) * If two examples of this operation race, one can appear to succeed * but actually fail. You must protect multiple accesses with a lock. */ -static inline int __test_and_set_bit(int nr, volatile void *addr) +static inline int __test_and_set_bit(int nr, volatile unsigned long *addr) { int oldbit; @@ -203,7 +203,7 @@ static inline int __test_and_set_bit(int nr, volatile void *addr) * This operation is atomic and cannot be reordered. * It also implies a memory barrier. */ -static inline int test_and_clear_bit(int nr, volatile void *addr) +static inline int test_and_clear_bit(int nr, volatile unsigned long *addr) { int oldbit; @@ -223,7 +223,7 @@ static inline int test_and_clear_bit(int nr, volatile void *addr) * If two examples of this operation race, one can appear to succeed * but actually fail. You must protect multiple accesses with a lock. */ -static inline int __test_and_clear_bit(int nr, volatile void *addr) +static inline int __test_and_clear_bit(int nr, volatile unsigned long *addr) { int oldbit; @@ -235,7 +235,7 @@ static inline int __test_and_clear_bit(int nr, volatile void *addr) } /* WARNING: non atomic and it can be reordered! */ -static inline int __test_and_change_bit(int nr, volatile void *addr) +static inline int __test_and_change_bit(int nr, volatile unsigned long *addr) { int oldbit; @@ -255,7 +255,7 @@ static inline int __test_and_change_bit(int nr, volatile void *addr) * This operation is atomic and cannot be reordered. * It also implies a memory barrier. */ -static inline int test_and_change_bit(int nr, volatile void *addr) +static inline int test_and_change_bit(int nr, volatile unsigned long *addr) { int oldbit; @@ -266,13 +266,13 @@ static inline int test_and_change_bit(int nr, volatile void *addr) return oldbit; } -static inline int constant_test_bit(int nr, const volatile void *addr) +static inline int constant_test_bit(int nr, const volatile unsigned long *addr) { return ((1UL << (nr % BITS_PER_LONG)) & (((unsigned long *)addr)[nr / BITS_PER_LONG])) != 0; } -static inline int variable_test_bit(int nr, volatile const void *addr) +static inline int variable_test_bit(int nr, volatile const unsigned long *addr) { int oldbit; -- 2.39.2