Messages in this thread Patch in this message | | | From | Ben Hutchings <> | Date | Mon, 12 Mar 2018 03:03:34 +0000 | Subject | [PATCH 3.2 034/104] bitops: Introduce BIT_ULL |
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3.2.101-rc1 review patch. If anyone has any objections, please let me know.
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From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
commit bfd1ff6375c82930bfb3b401eee2c96720fa8e84 upstream.
Adding BIT(x) equivalent for unsigned long long type, BIT_ULL(x). Also added BIT_ULL_MASK and BIT_ULL_WORD.
Suggested-by: Joe Perches <joe@perches.com> Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> --- include/linux/bitops.h | 3 +++ 1 file changed, 3 insertions(+)
--- a/include/linux/bitops.h +++ b/include/linux/bitops.h @@ -4,8 +4,11 @@ #ifdef __KERNEL__ #define BIT(nr) (1UL << (nr)) +#define BIT_ULL(nr) (1ULL << (nr)) #define BIT_MASK(nr) (1UL << ((nr) % BITS_PER_LONG)) #define BIT_WORD(nr) ((nr) / BITS_PER_LONG) +#define BIT_ULL_MASK(nr) (1ULL << ((nr) % BITS_PER_LONG_LONG)) +#define BIT_ULL_WORD(nr) ((nr) / BITS_PER_LONG_LONG) #define BITS_PER_BYTE 8 #define BITS_TO_LONGS(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long)) #endif
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