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arm: bitops: fixed bitops to access more than 32 bits

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Signed-off-by: Alexander Kartashov <alekskartashov@parallels.com>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
Alexander Kartashov
2013-06-22 13:16:43 +04:00
committed by Pavel Emelyanov
parent c97911a5f2
commit 1ef1c80f3d
1 changed files with 8 additions and 4 deletions
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12
arch/arm/include/asm/bitops.h
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@@ -20,22 +20,26 @@
#define ADDR BITOP_ADDR(addr) #define ADDR BITOP_ADDR(addr)
static inline void set_bit(int nr, volatile unsigned long *addr) { static inline void set_bit(int nr, volatile unsigned long *addr) {
*addr |= (1 << nr); addr += nr / BITS_PER_LONG;
*addr |= (1 << (nr % BITS_PER_LONG));
} }
static inline void change_bit(int nr, volatile unsigned long *addr) static inline void change_bit(int nr, volatile unsigned long *addr)
{ {
*addr ^= (1 << nr); addr += nr / BITS_PER_LONG;
*addr ^= (1 << (nr % BITS_PER_LONG));
} }
static inline int test_bit(int nr, volatile const unsigned long *addr) static inline int test_bit(int nr, volatile const unsigned long *addr)
{ {
return (*addr & (1 << nr)) ? -1 : 0; addr += nr / BITS_PER_LONG;
return (*addr & (1 << (nr % BITS_PER_LONG))) ? -1 : 0;
} }
static inline void clear_bit(int nr, volatile unsigned long *addr) static inline void clear_bit(int nr, volatile unsigned long *addr)
{ {
*addr &= ~(1 << nr); addr += nr / BITS_PER_LONG;
*addr &= ~(1 << (nr % BITS_PER_LONG));
} }
/** /**