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authorAl Viro <viro@zeniv.linux.org.uk>2020-02-18 14:26:32 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2020-05-29 16:11:50 -0400
commit5904122c46581a5ccee54a51ef07e0d891fd7aef (patch)
tree433bbafc1e3a3cdbfd291d51cfd858186683dff2 /arch/s390
parent24f9aa928c3cc88bae573b39b6976844968f80a0 (diff)
downloadlinux-5904122c46581a5ccee54a51ef07e0d891fd7aef.tar.bz2
take the dummy csum_and_copy_from_user() into net/checksum.h
now that can be done conveniently - all non-trivial cases have _HAVE_ARCH_COPY_AND_CSUM_FROM_USER defined, so the fallback in net/checksum.h is used only for dummy (copy_from_user, then csum_partial) implementation. Allowing us to get rid of all dummy instances, both of csum_and_copy_from_user() and csum_partial_copy_from_user(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/include/asm/checksum.h19
1 files changed, 0 insertions, 19 deletions
diff --git a/arch/s390/include/asm/checksum.h b/arch/s390/include/asm/checksum.h
index 91e376b0d28c..6d01c96aeb5c 100644
--- a/arch/s390/include/asm/checksum.h
+++ b/arch/s390/include/asm/checksum.h
@@ -39,25 +39,6 @@ csum_partial(const void *buff, int len, __wsum sum)
return sum;
}
-/*
- * the same as csum_partial_copy, but copies from user space.
- *
- * here even more important to align src and dst on a 32-bit (or even
- * better 64-bit) boundary
- *
- * Copy from userspace and compute checksum.
- */
-static inline __wsum
-csum_partial_copy_from_user(const void __user *src, void *dst,
- int len, __wsum sum,
- int *err_ptr)
-{
- if (unlikely(copy_from_user(dst, src, len)))
- *err_ptr = -EFAULT;
- return csum_partial(dst, len, sum);
-}
-
-
static inline __wsum
csum_partial_copy_nocheck (const void *src, void *dst, int len, __wsum sum)
{