From 9ea88a153001ffeb3d8810917e8eea62ca9b6f25 Mon Sep 17 00:00:00 2001
From: Dmitry Popov <ixaphire@qrator.net>
Date: Thu, 7 Aug 2014 02:38:22 +0400
Subject: [PATCH] tcp: md5: check md5 signature without socket lock

Since a8afca032 (tcp: md5: protects md5sig_info with RCU) tcp_md5_do_lookup
doesn't require socket lock, rcu_read_lock is enough. Therefore socket lock is
no longer required for tcp_v{4,6}_inbound_md5_hash too, so we can move these
calls (wrapped with rcu_read_{,un}lock) before bh_lock_sock:
from tcp_v{4,6}_do_rcv to tcp_v{4,6}_rcv.

Signed-off-by: Dmitry Popov <ixaphire@qrator.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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