diff options
| author | yangxingwu | 2019-07-10 21:14:10 +0800 |
|---|---|---|
| committer | David S. Miller | 2019-07-11 14:43:25 -0700 |
| commit | 416e8126a2672f6e91e9e81c6f5c07cf46808b13 (patch) | |
| tree | 022663d29eb3e3629f3004d2b02c72deb2e89209 /net/ipv6/ah6.c | |
| parent | 311633b604063a8a5d3fbc74d0565b42df721f68 (diff) | |
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 'net/ipv6/ah6.c')
| -rw-r--r-- | net/ipv6/ah6.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c index 25e1172fd1c3..95835e8d99aa 100644 --- a/net/ipv6/ah6.c +++ b/net/ipv6/ah6.c @@ -464,7 +464,7 @@ static void ah6_input_done(struct crypto_async_request *base, int err) struct ah_data *ahp = x->data; struct ip_auth_hdr *ah = ip_auth_hdr(skb); int hdr_len = skb_network_header_len(skb); - int ah_hlen = (ah->hdrlen + 2) << 2; + int ah_hlen = ipv6_authlen(ah); if (err) goto out; @@ -546,7 +546,7 @@ static int ah6_input(struct xfrm_state *x, struct sk_buff *skb) ahash = ahp->ahash; nexthdr = ah->nexthdr; - ah_hlen = (ah->hdrlen + 2) << 2; + ah_hlen = ipv6_authlen(ah); if (ah_hlen != XFRM_ALIGN8(sizeof(*ah) + ahp->icv_full_len) && ah_hlen != XFRM_ALIGN8(sizeof(*ah) + ahp->icv_trunc_len)) |