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authorAl Viro2020-07-11 00:12:07 -0400
committerAl Viro2020-08-20 15:45:14 -0400
commitcc44c17baf7f3f833d36b2f2a1edb1cc0b6f2cc4 (patch)
tree78e1d7c77dfd8cc862ba559d4c4c6653a5002c1b /arch/m68k
parent6e41c585e38ff696de3a11509a0ad0a11150b0c3 (diff)
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/m68k')
-rw-r--r--arch/m68k/include/asm/checksum.h3
-rw-r--r--arch/m68k/lib/checksum.c3
2 files changed, 3 insertions, 3 deletions
diff --git a/arch/m68k/include/asm/checksum.h b/arch/m68k/include/asm/checksum.h
index ab16881d84cb..d5e74c64b6cd 100644
--- a/arch/m68k/include/asm/checksum.h
+++ b/arch/m68k/include/asm/checksum.h
@@ -38,8 +38,7 @@ extern __wsum csum_and_copy_from_user(const void __user *src,
int *csum_err);
extern __wsum csum_partial_copy_nocheck(const void *src,
- void *dst, int len,
- __wsum sum);
+ void *dst, int len);
/*
* This is a version of ip_fast_csum() optimized for IP headers,
diff --git a/arch/m68k/lib/checksum.c b/arch/m68k/lib/checksum.c
index 31797be9a3dc..86ddd2ee187d 100644
--- a/arch/m68k/lib/checksum.c
+++ b/arch/m68k/lib/checksum.c
@@ -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"