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authoryangxingwu <xingwu.yang@gmail.com>2019-07-10 21:14:10 +0800
committerDavid S. Miller <davem@davemloft.net>2019-07-11 14:43:25 -0700
commit416e8126a2672f6e91e9e81c6f5c07cf46808b13 (patch)
tree022663d29eb3e3629f3004d2b02c72deb2e89209 /net/ipv6/exthdrs_core.c
parenthsr: switch ->dellink() to ->ndo_uninit() (diff)
downloadlinux-dev-416e8126a2672f6e91e9e81c6f5c07cf46808b13.tar.xz
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ipv6: Use ipv6_authlen for len
The length of AH header is computed manually as (hp->hdrlen+2)<<2. However, in include/linux/ipv6.h, a macro named ipv6_authlen is already defined for exactly the same job. This commit replaces the manual computation code with the macro. Signed-off-by: yangxingwu <xingwu.yang@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
-rw-r--r--net/ipv6/exthdrs_core.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/exthdrs_core.c b/net/ipv6/exthdrs_core.c
index 11a43ee4dd45..b358f1a4dd08 100644
--- a/net/ipv6/exthdrs_core.c
+++ b/net/ipv6/exthdrs_core.c
@@ -266,7 +266,7 @@ int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset,
} else if (nexthdr == NEXTHDR_AUTH) {
if (flags && (*flags & IP6_FH_F_AUTH) && (target < 0))
break;
- hdrlen = (hp->hdrlen + 2) << 2;
+ hdrlen = ipv6_authlen(hp);
} else
hdrlen = ipv6_optlen(hp);