diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-generic/checksum.h | 12 | ||||
| -rw-r--r-- | include/linux/skbuff.h | 2 | ||||
| -rw-r--r-- | include/net/checksum.h | 22 |
3 files changed, 15 insertions, 21 deletions
diff --git a/include/asm-generic/checksum.h b/include/asm-generic/checksum.h index cd8b75aa770d..43e18db89c14 100644 --- a/include/asm-generic/checksum.h +++ b/include/asm-generic/checksum.h @@ -16,18 +16,6 @@ */ extern __wsum csum_partial(const void *buff, int len, __wsum sum); -/* - * the same as csum_partial, but copies from src while it - * checksums - * - * here even more important to align src and dst on a 32-bit (or even - * better 64-bit) boundary - */ -#ifndef csum_partial_copy_nocheck -__wsum csum_partial_copy_nocheck(const void *src, void *dst, int len, - __wsum sum); -#endif - #ifndef ip_fast_csum /* * This is a version of ip_compute_csum() optimized for IP headers, diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 04a18e01b362..416bf95cd5f2 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -3545,7 +3545,7 @@ int skb_kill_datagram(struct sock *sk, struct sk_buff *skb, unsigned int flags); int skb_copy_bits(const struct sk_buff *skb, int offset, void *to, int len); int skb_store_bits(struct sk_buff *skb, int offset, const void *from, int len); __wsum skb_copy_and_csum_bits(const struct sk_buff *skb, int offset, u8 *to, - int len, __wsum csum); + int len); int skb_splice_bits(struct sk_buff *skb, struct sock *sk, unsigned int offset, struct pipe_inode_info *pipe, unsigned int len, unsigned int flags); diff --git a/include/net/checksum.h b/include/net/checksum.h index 46754ba9d7b7..0d05b9e8690b 100644 --- a/include/net/checksum.h +++ b/include/net/checksum.h @@ -24,26 +24,32 @@ #ifndef _HAVE_ARCH_COPY_AND_CSUM_FROM_USER static inline __wsum csum_and_copy_from_user (const void __user *src, void *dst, - int len, __wsum sum, int *err_ptr) + int len) { if (copy_from_user(dst, src, len)) - *err_ptr = -EFAULT; - return csum_partial(dst, len, sum); + return 0; + return csum_partial(dst, len, ~0U); } #endif #ifndef HAVE_CSUM_COPY_USER static __inline__ __wsum csum_and_copy_to_user -(const void *src, void __user *dst, int len, __wsum sum, int *err_ptr) +(const void *src, void __user *dst, int len) { - sum = csum_partial(src, len, sum); + __wsum sum = csum_partial(src, len, ~0U); if (copy_to_user(dst, src, len) == 0) return sum; - if (len) - *err_ptr = -EFAULT; + return 0; +} +#endif - return (__force __wsum)-1; /* invalid checksum */ +#ifndef _HAVE_ARCH_CSUM_AND_COPY +static inline __wsum +csum_partial_copy_nocheck(const void *src, void *dst, int len) +{ + memcpy(dst, src, len); + return csum_partial(dst, len, 0); } #endif |