netdev - [PATCH 3/4] ipv4: use SNMP macro assuming softirq context in ip

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <3c324aaf986e6d5a0678cac6d292dd0b96bd9766.1390304505.git.popovich_sergei@mail.ru>
Date:	Tue, 21 Jan 2014 13:48:50 +0200
From:	Sergey Popovich <popovich_sergei@...l.ru>
To:	netdev@...r.kernel.org
Subject: [PATCH 3/4] ipv4: use SNMP macro assuming softirq context in ip_forward().

ip_forward() runs entirely in softirq context, we could use
version of SNMP macro which updates stats counters assuming that.

Signed-off-by: Sergey Popovich <popovich_sergei@...l.ru>
---
 net/ipv4/ip_forward.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv4/ip_forward.c b/net/ipv4/ip_forward.c
index e9f1217..fd7eeec 100644
--- a/net/ipv4/ip_forward.c
+++ b/net/ipv4/ip_forward.c
@@ -93,7 +93,7 @@ int ip_forward(struct sk_buff *skb)
 	mtu = ip_dst_mtu_maybe_forward(&rt->dst, true);
 	if (unlikely(skb->len > mtu && !skb_is_gso(skb) &&
 		     (ip_hdr(skb)->frag_off & htons(IP_DF))) && !skb->local_df) {
-		IP_INC_STATS(dev_net(rt->dst.dev), IPSTATS_MIB_FRAGFAILS);
+		IP_INC_STATS_BH(dev_net(rt->dst.dev), IPSTATS_MIB_FRAGFAILS);
 		icmp_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED,
 			  htonl(mtu));
 		goto drop;
-- 
1.8.3.4

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html