ipv6: Pass proto to csum_ipv6_magic as __u8 instead of unsigned short

This patch updates csum_ipv6_magic so that it correctly recognizes that
protocol is a unsigned 8 bit value.

This will allow us to better understand what limitations may or may not be
present in how we handle the data.  For example there are a number of
places that call htonl on the protocol value.  This is likely not necessary
and can be replaced with a multiplication by ntohl(1) which will be
converted to a shift by the compiler.

Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexander Duyck
2016-03-11 14:05:41 -08:00
committed by David S. Miller
parent 01cfbad79a
commit 1e94082963
18 changed files with 21 additions and 29 deletions

View File

@@ -69,7 +69,7 @@ static inline __sum16 csum_fold(__wsum csum)
#define _HAVE_ARCH_IPV6_CSUM 1
struct in6_addr;
extern __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
const struct in6_addr *daddr, __u32 len, unsigned short proto,
__wsum csum);
const struct in6_addr *daddr,
__u32 len, __u8 proto, __wsum csum);
#endif /* _ASM_IA64_CHECKSUM_H */