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csum_partial_copy_nocheck(): drop the last argument

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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>
This commit is contained in:
Al Viro
2020-07-11 00:12:07 -04:00
parent 6e41c585e3
commit cc44c17baf
27 changed files with 49 additions and 48 deletions
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3
arch/m68k/lib/checksum.c
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@@ -324,9 +324,10 @@ EXPORT_SYMBOL(csum_and_copy_from_user);
*/
__wsum
csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum)
csum_partial_copy_nocheck(const void *src, void *dst, int len)
{
unsigned long tmp1, tmp2;
__wsum sum = 0;
__asm__("movel %2,%4\n\t"
"btst #1,%4\n\t" /* Check alignment */
"jeq 2f\n\t"