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Message-Id: <1370589652-24549-8-git-send-email-alex.shi@intel.com>
Date: Fri, 7 Jun 2013 15:20:50 +0800
From: Alex Shi <alex.shi@...el.com>
To: mingo@...hat.com, peterz@...radead.org, tglx@...utronix.de,
akpm@...ux-foundation.org, bp@...en8.de, pjt@...gle.com,
namhyung@...nel.org, efault@....de, morten.rasmussen@....com
Cc: vincent.guittot@...aro.org, preeti@...ux.vnet.ibm.com,
viresh.kumar@...aro.org, linux-kernel@...r.kernel.org,
alex.shi@...el.com, mgorman@...e.de, riel@...hat.com,
wangyun@...ux.vnet.ibm.com, Jason Low <jason.low2@...com>,
Changlong Xie <changlongx.xie@...el.com>, sgruszka@...hat.com,
fweisbec@...il.com
Subject: [patch v8 7/9] math64: add div64_ul macro
There are div64_long() to handle the s64/long division. But no
macro do u64/ul division in kernel.
It is necessary on some scenarios. So add this macro. And fixed
the coding style error.
Signed-off-by: Alex Shi <alex.shi@...el.com>
---
include/linux/math64.h | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/include/linux/math64.h b/include/linux/math64.h
index b8ba855..2913b86 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)
--
1.7.12
--
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