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

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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
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2
arch/m68k/include/asm/checksum.h
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@@ -117,7 +117,7 @@ static inline __sum16 ip_compute_csum(const void *buff, int len)
#define _HAVE_ARCH_IPV6_CSUM
static __inline__ __sum16
csum_ipv6_magic(const struct in6_addr *saddr, const struct in6_addr *daddr,
__u32 len, unsigned short proto, __wsum sum)
__u32 len, __u8 proto, __wsum sum)
{
register unsigned long tmp;
__asm__("addl %2@,%0\n\t"