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netfilter: nft_extdhr: Drop pointless check of tprot_set

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Pablo says, tprot_set is only there to detect if tprot was set to
IPPROTO_IP as that evaluates to zero. Therefore, code asserting a
different value in tprot does not need to check tprot_set.

Fixes: 935b7f6430 ("netfilter: nft_exthdr: add TCP option matching")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Phil Sutter 2021-06-11 19:08:26 +02:00 • committed by Pablo Neira Ayuso
parent 5acc44f394
commit 06e95f0a2a
1 changed files with 1 additions and 1 deletions
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2
net/netfilter/nft_exthdr.c
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@ -164,7 +164,7 @@ nft_tcp_header_pointer(const struct nft_pktinfo *pkt,
{
struct tcphdr *tcph;
if (!pkt->tprot_set || pkt->tprot != IPPROTO_TCP)
if (pkt->tprot != IPPROTO_TCP)
return NULL;
tcph = skb_header_pointer(pkt->skb, nft_thoff(pkt), sizeof(*tcph), buffer);