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authorAlex Shi <alex.shi@intel.com>2013-06-13 01:05:10 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2013-06-13 03:29:47 +0400
commitc2853c8df57f49620d26f317d7d43347c29bfc2e (patch)
tree4aa0a7f658e1db70c0f8e903cda95590bdb9b1c5
parent89dc991f0f5272c307c746fdd57d0bff382b1ba2 (diff)
downloadlinux-c2853c8df57f49620d26f317d7d43347c29bfc2e.tar.xz
include/linux/math64.h: add div64_ul()
There is div64_long() to handle the s64/long division, but no mocro do u64/ul division. It is necessary in some scenarios, so add this function. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Alex Shi <alex.shi@intel.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--include/linux/math64.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/include/linux/math64.h b/include/linux/math64.h
index b8ba85544721..2913b86eb12a 100644
--- a/include/linux/math64.h
+++ b/include/linux/math64.h
@@ -6,7 +6,8 @@
#if BITS_PER_LONG == 64
-#define div64_long(x,y) div64_s64((x),(y))
+#define div64_long(x, y) div64_s64((x), (y))
+#define div64_ul(x, y) div64_u64((x), (y))
/**
* div_u64_rem - unsigned 64bit divide with 32bit divisor with remainder
@@ -47,7 +48,8 @@ static inline s64 div64_s64(s64 dividend, s64 divisor)
#elif BITS_PER_LONG == 32
-#define div64_long(x,y) div_s64((x),(y))
+#define div64_long(x, y) div_s64((x), (y))
+#define div64_ul(x, y) div_u64((x), (y))
#ifndef div_u64_rem
static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)