From: Zefan Li <lizefan@huawei.com>
Date: Mon, 8 Apr 2013 19:59:28 +0000 (+0000)
Subject: tcp_memcontrol: remove a redundant statement in tcp_destroy_cgroup()
X-Git-Tag: firefly_0821_release~3680^2~548^2~185
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=10b96f7306e5fbc762c2a04e005fc1d444842d9e;p=firefly-linux-kernel-4.4.55.git

tcp_memcontrol: remove a redundant statement in tcp_destroy_cgroup()

We read the value but make no use of it.

Signed-off-by: Li Zefan <lizefan@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv4/tcp_memcontrol.c b/net/ipv4/tcp_memcontrol.c
index b6f3583ddfe8..d52196f56862 100644
--- a/net/ipv4/tcp_memcontrol.c
+++ b/net/ipv4/tcp_memcontrol.c
@@ -72,8 +72,6 @@ void tcp_destroy_cgroup(struct mem_cgroup *memcg)
 
 	tcp = tcp_from_cgproto(cg_proto);
 	percpu_counter_destroy(&tcp->tcp_sockets_allocated);
-
-	val = res_counter_read_u64(&tcp->tcp_memory_allocated, RES_LIMIT);
 }
 EXPORT_SYMBOL(tcp_destroy_cgroup);