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authorLi RongQing <lirongqing@baidu.com>2018-12-06 16:28:11 +0800
committerDavid S. Miller <davem@davemloft.net>2018-12-06 12:15:53 -0800
commit5c327f673d2f134ac01c068b511c6ab816b4b41c (patch)
tree97164dfb9799a6cf4e1cfeb6c6d35cd0d60efb8f
parent83b1bc122cab87547731a154db5feec5b9d4807c (diff)
downloadlinux-5c327f673d2f134ac01c068b511c6ab816b4b41c.tar.bz2
tun: remove unnecessary check in tun_flow_update
caller has guaranted that rxhash is not zero Signed-off-by: Li RongQing <lirongqing@baidu.com> Acked-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/tun.c5
1 files changed, 1 insertions, 4 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index d0745dc81976..6760b86547df 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -529,10 +529,7 @@ static void tun_flow_update(struct tun_struct *tun, u32 rxhash,
unsigned long delay = tun->ageing_time;
u16 queue_index = tfile->queue_index;
- if (!rxhash)
- return;
- else
- head = &tun->flows[tun_hashfn(rxhash)];
+ head = &tun->flows[tun_hashfn(rxhash)];
rcu_read_lock();