From 76ed390a52769c5ca64db5496a2adcb43df72035 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Fri, 15 Jan 2021 09:42:33 +0100 Subject: net/eth: Simplify _eth_get_rss_ex_dst_addr() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The length field is already contained in the ip6_ext_hdr structure. Check it direcly in eth_parse_ipv6_hdr() before calling _eth_get_rss_ex_dst_addr(), which gets a bit simplified. Signed-off-by: Philippe Mathieu-Daudé --- net/eth.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/net/eth.c b/net/eth.c index 1e0821c5f8..7d4dd48c1f 100644 --- a/net/eth.c +++ b/net/eth.c @@ -407,9 +407,7 @@ _eth_get_rss_ex_dst_addr(const struct iovec *pkt, int pkt_frags, { struct ip6_ext_hdr_routing *rthdr = (struct ip6_ext_hdr_routing *) ext_hdr; - if ((rthdr->rtype == 2) && - (rthdr->len == sizeof(struct in6_address) / 8) && - (rthdr->segleft == 1)) { + if ((rthdr->rtype == 2) && (rthdr->segleft == 1)) { size_t input_size = iov_size(pkt, pkt_frags); size_t bytes_read; @@ -528,10 +526,12 @@ bool eth_parse_ipv6_hdr(const struct iovec *pkt, int pkt_frags, } if (curr_ext_hdr_type == IP6_ROUTING) { - info->rss_ex_dst_valid = - _eth_get_rss_ex_dst_addr(pkt, pkt_frags, - ip6hdr_off + info->full_hdr_len, - &ext_hdr, &info->rss_ex_dst); + if (ext_hdr.ip6r_len == sizeof(struct in6_address) / 8) { + info->rss_ex_dst_valid = + _eth_get_rss_ex_dst_addr(pkt, pkt_frags, + ip6hdr_off + info->full_hdr_len, + &ext_hdr, &info->rss_ex_dst); + } } else if (curr_ext_hdr_type == IP6_DESTINATON) { info->rss_ex_src_valid = _eth_get_rss_ex_src_addr(pkt, pkt_frags, -- 2.18.4