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openvswitch: Fix overreporting of drops in dropwatch

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[ Upstream commit c21ab2afa2 ]

Currently queue_userspace_packet will call kfree_skb for all frames,
whether or not an error occurred. This can result in a single dropped
frame being reported as multiple drops in dropwatch. This functions
caller may also call kfree_skb in case of an error. This patch will
consume the skbs instead and allow caller's to use kfree_skb.

Signed-off-by: Mike Pattrick <mkp@redhat.com>
Link: https://bugzilla.redhat.com/show_bug.cgi?id=2109957
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Mike Pattrick 2022-08-17 11:06:35 -04:00 committed by Greg Kroah-Hartman
parent 8a1a8ed053
commit 684c3694d3
1 changed files with 3 additions and 2 deletions
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5
net/openvswitch/datapath.c
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@ -553,8 +553,9 @@ static int queue_userspace_packet(struct datapath *dp, struct sk_buff *skb,
out:
if (err)
skb_tx_error(skb);
kfree_skb(user_skb);
kfree_skb(nskb);
consume_skb(user_skb);
consume_skb(nskb);
return err;
}