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sh: Kill off udivdi3 div64_32 wrapping.

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Previously we've been handling udivdi3 references and wrapping
them in to div64_32() automatically. This doesn't get a lot of
use, however, and as akpm noted in the recent thread on l-k:

	http://lkml.org/lkml/2007/2/27/241

we're better off simply ripping it out and going the do_div()
route if there happen to be any places that need it.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2007-03-28 17:14:45 +09:00 committed by Paul Mundt
parent 01066625e9
commit cdf50b23bf
3 changed files with 1 additions and 20 deletions
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1
arch/sh/kernel/sh_ksyms.c
View File

@ -65,7 +65,6 @@ EXPORT_SYMBOL(__div64_32);
/* These symbols are generated by the compiler itself */
DECLARE_EXPORT(__udivsi3);
DECLARE_EXPORT(__udivdi3);
DECLARE_EXPORT(__sdivsi3);
DECLARE_EXPORT(__ashrdi3);
DECLARE_EXPORT(__ashldi3);

4
arch/sh/lib/Makefile
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@ -3,11 +3,9 @@
#
lib-y = delay.o memset.o memmove.o memchr.o \
checksum.o strlen.o div64.o udivdi3.o \
div64-generic.o
checksum.o strlen.o div64.o div64-generic.o
memcpy-y := memcpy.o
memcpy-$(CONFIG_CPU_SH4) := memcpy-sh4.o
lib-y += $(memcpy-y)

16
arch/sh/lib/udivdi3.c
View File

@ -1,16 +0,0 @@
/*
* Simple __udivdi3 function which doesn't use FPU.
*/
#include <linux/types.h>
extern u64 __xdiv64_32(u64 n, u32 d);
extern void panic(const char * fmt, ...);
u64 __udivdi3(u64 n, u64 d)
{
if (d & ~0xffffffff)
panic("Need true 64-bit/64-bit division");
return __xdiv64_32(n, (u32)d);
}