[TCP] inet_twdr_hangman: Delete unnecessary memory barrier().

As per Ralf Baechle's observations, the schedule_work() call
should give enough of a memory barrier, so the explicit one
here is totally unnecessary.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 1 deletions

diff --git a/net/ipv4/inet_timewait_sock.c b/net/ipv4/inet_timewait_sock.c
index 75373f35383f..061fd7a961b8 100644
--- a/net/ipv4/inet_timewait_sock.c
+++ b/net/ipv4/inet_timewait_sock.c
@@ -178,7 +178,6 @@ void inet_twdr_hangman(unsigned long data)
         need_timer = 0;
         if (inet_twdr_do_twkill_work(twdr, twdr->slot)) {
                 twdr->thread_slots |= (1 << twdr->slot);
-                smp_mb();
                 schedule_work(&twdr->twkill_work);
                 need_timer = 1;
         } else {