Thread (8 messages) 8 messages, 3 authors, 2024-10-11
STALE655d

[PATCH] bridge: use promisc arg instead of skb flags

From: Amedeo Baragiola <hidden>
Date: 2024-10-05 01:45:42
Also in: bridge, lkml
Subsystem: ethernet bridge, networking [general], the rest · Maintainers: Nikolay Aleksandrov, Ido Schimmel, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds

Since commit 751de2012eaf ("netfilter: br_netfilter: skip conntrack input hook for promisc packets")
a second argument (promisc) has been added to br_pass_frame_up which
represents whether the interface is in promiscuous mode. However,
internally - in one remaining case - br_pass_frame_up checks the device
flags derived from skb instead of the argument being passed in.
This one-line changes addresses this inconsistency.

Signed-off-by: Amedeo Baragiola <redacted>
---
 net/bridge/br_input.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index ceaa5a89b947..156c18f42fa3 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -50,8 +50,7 @@ static int br_pass_frame_up(struct sk_buff *skb, bool promisc)
 	 * packet is allowed except in promisc mode when someone
 	 * may be running packet capture.
 	 */
-	if (!(brdev->flags & IFF_PROMISC) &&
-	    !br_allowed_egress(vg, skb)) {
+	if (!promisc && !br_allowed_egress(vg, skb)) {
 		kfree_skb(skb);
 		return NET_RX_DROP;
 	}
-- 
2.46.2
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