linux-kernel - [PATCH 4/5] libgcc: Disable usage of special do

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Message-ID: <20090403154201.GD7200@wavehammer.waldi.eu.org>
Date:	Fri, 3 Apr 2009 17:42:01 +0200
From:	Bastian Blank <waldi@...ian.org>
To:	linux-kernel@...r.kernel.org, linux-s390@...r.kernel.org
Subject: [PATCH 4/5] libgcc: Disable usage of special do_div version

gcc takes care of large div and mod operations and redirects them into
the libgcc.  There is no need to do it by hand in this case.

Signed-off-by: Bastian Blank <waldi@...ian.org>
---
 include/asm-generic/div64.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/include/asm-generic/div64.h b/include/asm-generic/div64.h
index 8f4e319..45f618d 100644
--- a/include/asm-generic/div64.h
+++ b/include/asm-generic/div64.h
@@ -20,7 +20,7 @@
 #include <linux/types.h>
 #include <linux/compiler.h>
 
-#if BITS_PER_LONG == 64
+#if BITS_PER_LONG == 64 || CONFIG_LIBGCC_SUPPORT
 
 # define do_div(n,base) ({					\
 	uint32_t __base = (base);				\
-- 
1.6.2.1
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