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>

1 files changed, 2 insertions, 3 deletions

diff --git a/arch/score/include/asm/checksum.h b/arch/score/include/asm/checksum.h
index a375bc2700be..539d9fd45d21 100644
--- a/arch/score/include/asm/checksum.h
+++ b/arch/score/include/asm/checksum.h
@@ -179,9 +179,8 @@ static inline unsigned short 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)
+                                      const struct in6_addr *daddr,
+                                      __u32 len, __u8 proto, __wsum sum)
 {
         __asm__ __volatile__(
                 ".set\tvolatile\t\t\t# csum_ipv6_magic\n\t"