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author | Al Viro <viro@zeniv.linux.org.uk> | 2020-07-11 07:12:07 +0300 |
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committer | Al Viro <viro@zeniv.linux.org.uk> | 2020-08-20 22:45:14 +0300 |
commit | cc44c17baf7f3f833d36b2f2a1edb1cc0b6f2cc4 (patch) | |
tree | 78e1d7c77dfd8cc862ba559d4c4c6653a5002c1b /arch/x86/include/asm/checksum_64.h | |
parent | 6e41c585e38ff696de3a11509a0ad0a11150b0c3 (diff) | |
download | linux-cc44c17baf7f3f833d36b2f2a1edb1cc0b6f2cc4.tar.xz |
csum_partial_copy_nocheck(): drop the last argument
It's always 0. Note that we theoretically could use ~0U as well -
result will be the same modulo 0xffff, _if_ the damn thing did the
right thing for any value of initial sum; later we'll make use of
that when convenient.
However, unlike csum_and_copy_..._user(), there are instances that
did not work for arbitrary initial sums; c6x is one such.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/x86/include/asm/checksum_64.h')
-rw-r--r-- | arch/x86/include/asm/checksum_64.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/x86/include/asm/checksum_64.h b/arch/x86/include/asm/checksum_64.h index 0a289b87e872..5339f5dfc776 100644 --- a/arch/x86/include/asm/checksum_64.h +++ b/arch/x86/include/asm/checksum_64.h @@ -139,8 +139,7 @@ extern __wsum csum_and_copy_from_user(const void __user *src, void *dst, int len, __wsum isum, int *errp); extern __wsum csum_and_copy_to_user(const void *src, void __user *dst, int len, __wsum isum, int *errp); -extern __wsum csum_partial_copy_nocheck(const void *src, void *dst, - int len, __wsum sum); +extern __wsum csum_partial_copy_nocheck(const void *src, void *dst, int len); /** * ip_compute_csum - Compute an 16bit IP checksum. |