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ipv6: Use ipv6_authlen for len in ipv6_skip_exthdr 

In ipv6_skip_exthdr, the lengh 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: Xiang Gao <qasdfgtyuiop@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Xiang Gao 2017-09-20 12:18:17 -04:00 committed by David S. Miller
parent 8ca712c373
commit d4e1b299ec
1 changed files with 1 additions and 1 deletions
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2
net/ipv6/exthdrs_core.c
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@ -99,7 +99,7 @@ int ipv6_skip_exthdr(const struct sk_buff *skb, int start, u8 *nexthdrp,
break;
hdrlen = 8;
} else if (nexthdr == NEXTHDR_AUTH)
hdrlen = (hp->hdrlen+2)<<2;
hdrlen = ipv6_authlen(hp);
else
hdrlen = ipv6_optlen(hp);