[PATCH v2 5/6] bitops: Introduce BIT_ULL

From: Srinivas Pandruvada
Date: Fri Oct 04 2013 - 12:41:09 EST


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@xxxxxxxxxxx>
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@xxxxxxxxxxxxxxx>
Signed-off-by: Jacob Pan <jacob.jun.pan@xxxxxxxxxxxxxxx>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
---
include/linux/bitops.h | 3 +++
1 file changed, 3 insertions(+)

diff --git a/include/linux/bitops.h b/include/linux/bitops.h
index a3b6b82..5a1c8b7 100644
--- 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
--
1.8.3.1

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