diff options
Diffstat (limited to 'arch/arm/include/asm/checksum.h')
| -rw-r--r-- | arch/arm/include/asm/checksum.h | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/arch/arm/include/asm/checksum.h b/arch/arm/include/asm/checksum.h index 20043e0ebb07..f0f54aef3724 100644 --- a/arch/arm/include/asm/checksum.h +++ b/arch/arm/include/asm/checksum.h @@ -35,10 +35,21 @@ __wsum csum_partial(const void *buff, int len, __wsum sum); */ __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); __wsum -csum_partial_copy_from_user(const void __user *src, void *dst, int len, __wsum sum, int *err_ptr); +csum_partial_copy_from_user(const void __user *src, void *dst, int len); + +#define _HAVE_ARCH_COPY_AND_CSUM_FROM_USER +#define _HAVE_ARCH_CSUM_AND_COPY +static inline +__wsum csum_and_copy_from_user(const void __user *src, void *dst, int len) +{ + if (!access_ok(src, len)) + return 0; + + return csum_partial_copy_from_user(src, dst, len); +} /* * Fold a partial checksum without adding pseudo headers |