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| author | Paul Mundt <lethal@linux-sh.org> | 2007-03-28 17:14:45 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@hera.kernel.org> | 2007-05-07 02:11:55 +0000 |
| commit | cdf50b23bf83624708d0abbb381a1c1694e42e19 (patch) | |
| tree | 88c439ae3f3e679b98adc19fe18cb9286299c64e /arch/sh | |
| parent | 01066625e9ae39742c92e21163f7f2a818e02762 (diff) | |
| download | lwn-cdf50b23bf83624708d0abbb381a1c1694e42e19.tar.gz lwn-cdf50b23bf83624708d0abbb381a1c1694e42e19.zip | |
sh: Kill off udivdi3 div64_32 wrapping.
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>
Diffstat (limited to 'arch/sh')
| -rw-r--r-- | arch/sh/kernel/sh_ksyms.c | 1 | ||||
| -rw-r--r-- | arch/sh/lib/Makefile | 4 | ||||
| -rw-r--r-- | arch/sh/lib/udivdi3.c | 16 |
3 files changed, 1 insertions, 20 deletions
diff --git a/arch/sh/kernel/sh_ksyms.c b/arch/sh/kernel/sh_ksyms.c index 6e0d10fac4a8..17f0b50c5678 100644 --- a/arch/sh/kernel/sh_ksyms.c +++ b/arch/sh/kernel/sh_ksyms.c @@ -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); diff --git a/arch/sh/lib/Makefile b/arch/sh/lib/Makefile index 0b9cca5c7cb4..e23dd1a3fccd 100644 --- a/arch/sh/lib/Makefile +++ b/arch/sh/lib/Makefile @@ -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) - diff --git a/arch/sh/lib/udivdi3.c b/arch/sh/lib/udivdi3.c deleted file mode 100644 index 68f038bf3c50..000000000000 --- a/arch/sh/lib/udivdi3.c +++ /dev/null @@ -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); -} - |