netdev - [PATCH net-next] net: tcp_memcontrol: minor: remove unused variable

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Message-Id: <dfb368afc3840edaf20d8d96be44c58e0f0bbd87.1365963999.git.dborkman@redhat.com>
Date:	Sun, 14 Apr 2013 20:29:12 +0200
From:	Daniel Borkmann <dborkman@...hat.com>
To:	davem@...emloft.net
Cc:	netdev@...r.kernel.org
Subject: [PATCH net-next] net: tcp_memcontrol: minor: remove unused variable

Commit 10b96f7306e5 (``tcp_memcontrol: remove a redundant statement
in tcp_destroy_cgroup()'') says ``We read the value but make no use
of it.'', but forgot to remove the variable declaration as well. This
was a follow-up commit of 3f1346193 (``memcg: decrement static keys
at real destroy time'') that removed the read of variable 'val'.

This fixes therefore:

  CC      net/ipv4/tcp_memcontrol.o
net/ipv4/tcp_memcontrol.c: In function ‘tcp_destroy_cgroup’:
net/ipv4/tcp_memcontrol.c:67:6: warning: unused variable ‘val’ [-Wunused-variable]

Signed-off-by: Daniel Borkmann <dborkman@...hat.com>
---
 net/ipv4/tcp_memcontrol.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/net/ipv4/tcp_memcontrol.c b/net/ipv4/tcp_memcontrol.c
index d52196f..da14436 100644
--- a/net/ipv4/tcp_memcontrol.c
+++ b/net/ipv4/tcp_memcontrol.c
@@ -64,7 +64,6 @@ void tcp_destroy_cgroup(struct mem_cgroup *memcg)
 {
 	struct cg_proto *cg_proto;
 	struct tcp_memcontrol *tcp;
-	u64 val;
 
 	cg_proto = tcp_prot.proto_cgroup(memcg);
 	if (!cg_proto)
-- 
1.7.11.7

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