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| author | Anton Blanchard <anton@samba.org> | 2010-08-02 22:11:36 +0200 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-09-02 06:07:30 +0200 |
| commit | 8c77391475bc3284a380fc46aaf0bcf26bde3ae6 (patch) | |
| tree | 0948ebdf02ce03948faf8dc41af8414f84652239 /arch/powerpc/include/asm/checksum.h | |
| parent | powerpc: Optimise 64bit csum_partial_copy_generic and add csum_and_copy_from_... (diff) | |
| download | linux-8c77391475bc3284a380fc46aaf0bcf26bde3ae6.tar.xz linux-8c77391475bc3284a380fc46aaf0bcf26bde3ae6.zip | |
powerpc: Add 64bit csum_and_copy_to_user
This adds the equivalent of csum_and_copy_from_user for the receive side so we
can copy and checksum in one pass. It is modelled on the generic checksum
routine.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include/asm/checksum.h')
| -rw-r--r-- | arch/powerpc/include/asm/checksum.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/checksum.h b/arch/powerpc/include/asm/checksum.h index 9ea58c0e7cfb..ce0c28495f9a 100644 --- a/arch/powerpc/include/asm/checksum.h +++ b/arch/powerpc/include/asm/checksum.h @@ -57,6 +57,9 @@ extern __wsum csum_partial_copy_generic(const void *src, void *dst, #define _HAVE_ARCH_COPY_AND_CSUM_FROM_USER extern __wsum csum_and_copy_from_user(const void __user *src, void *dst, int len, __wsum sum, int *err_ptr); +#define HAVE_CSUM_COPY_USER +extern __wsum csum_and_copy_to_user(const void *src, void __user *dst, + int len, __wsum sum, int *err_ptr); #else /* * the same as csum_partial, but copies from src to dst while it |