net: tun: split run_ebpf_filter() and pskb_trim() into different "if statement"

[ Upstream commit 45a15d89fb ]

No functional change.

Just to split the if statement into different conditions to use
kfree_skb_reason() to trace the reason later.

Cc: Joao Martins <joao.m.martins@oracle.com>
Cc: Joe Jin <joe.jin@oracle.com>
Signed-off-by: Dongli Zhang <dongli.zhang@oracle.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Dongli Zhang 2022-03-04 06:55:06 -08:00 committed by Greg Kroah-Hartman
parent f52af853be
commit d2dba226ac

View File

@ -1097,7 +1097,10 @@ static netdev_tx_t tun_net_xmit(struct sk_buff *skb, struct net_device *dev)
goto drop;
len = run_ebpf_filter(tun, skb, len);
if (len == 0 || pskb_trim(skb, len))
if (len == 0)
goto drop;
if (pskb_trim(skb, len))
goto drop;
if (unlikely(skb_orphan_frags_rx(skb, GFP_ATOMIC)))