diff options
Diffstat (limited to 'include/net/checksum.h')
| -rw-r--r-- | include/net/checksum.h | 24 |
1 files changed, 10 insertions, 14 deletions
diff --git a/include/net/checksum.h b/include/net/checksum.h index 6bc783b7a06c..3cbab35de5ab 100644 --- a/include/net/checksum.h +++ b/include/net/checksum.h @@ -18,8 +18,10 @@ #include <linux/errno.h> #include <asm/types.h> #include <asm/byteorder.h> -#include <linux/uaccess.h> #include <asm/checksum.h> +#if !defined(_HAVE_ARCH_COPY_AND_CSUM_FROM_USER) || !defined(HAVE_CSUM_COPY_USER) +#include <linux/uaccess.h> +#endif #ifndef _HAVE_ARCH_COPY_AND_CSUM_FROM_USER static __always_inline @@ -97,12 +99,6 @@ csum_block_add(__wsum csum, __wsum csum2, int offset) } static __always_inline __wsum -csum_block_add_ext(__wsum csum, __wsum csum2, int offset, int len) -{ - return csum_block_add(csum, csum2, offset); -} - -static __always_inline __wsum csum_block_sub(__wsum csum, __wsum csum2, int offset) { return csum_block_add(csum, ~csum2, offset); @@ -113,12 +109,6 @@ static __always_inline __wsum csum_unfold(__sum16 n) return (__force __wsum)n; } -static __always_inline -__wsum csum_partial_ext(const void *buff, int len, __wsum sum) -{ - return csum_partial(buff, len, sum); -} - #define CSUM_MANGLED_0 ((__force __sum16)0xffff) static __always_inline void csum_replace_by_diff(__sum16 *sum, __wsum diff) @@ -149,6 +139,12 @@ static inline void csum_replace(__wsum *csum, __wsum old, __wsum new) *csum = csum_add(csum_sub(*csum, old), new); } +static inline unsigned short csum_from32to16(unsigned int sum) +{ + sum += (sum >> 16) | (sum << 16); + return (unsigned short)(sum >> 16); +} + struct sk_buff; void inet_proto_csum_replace4(__sum16 *sum, struct sk_buff *skb, __be32 from, __be32 to, bool pseudohdr); @@ -156,7 +152,7 @@ void inet_proto_csum_replace16(__sum16 *sum, struct sk_buff *skb, const __be32 *from, const __be32 *to, bool pseudohdr); void inet_proto_csum_replace_by_diff(__sum16 *sum, struct sk_buff *skb, - __wsum diff, bool pseudohdr); + __wsum diff, bool pseudohdr, bool ipv6); static __always_inline void inet_proto_csum_replace2(__sum16 *sum, struct sk_buff *skb, |