netdev - [PATCH net-next] fjes: Fix unnecessary spinlock

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Message-Id: <1462843729-32414-1-git-send-email-izumi.taku@jp.fujitsu.com>
Date:	Tue, 10 May 2016 10:28:49 +0900
From:	Taku Izumi <izumi.taku@...fujitsu.com>
To:	netdev@...r.kernel.org, davem@...emloft.net
Cc:	isimatu.yasuaki@...fujitsu.com,
	Taku Izumi <izumi.taku@...fujitsu.com>
Subject: [PATCH net-next] fjes: Fix unnecessary spinlock_irqsave

commit-bd5a256 introduces a deadlock bug in fjes_change_mtu().
This spin_lock_irqsave() is obviously unnecessary.

This patch eliminates unnecessary spin_lock_irqsave() in
fjes_change_mtu()

Signed-off-by: Taku Izumi <izumi.taku@...fujitsu.com>
---
 drivers/net/fjes/fjes_main.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/fjes/fjes_main.c b/drivers/net/fjes/fjes_main.c
index f4e6926..86c331b 100644
--- a/drivers/net/fjes/fjes_main.c
+++ b/drivers/net/fjes/fjes_main.c
@@ -819,7 +819,6 @@ static int fjes_change_mtu(struct net_device *netdev, int new_mtu)
 	netdev->mtu = new_mtu;
 
 	if (running) {
-		spin_lock_irqsave(&hw->rx_status_lock, flags);
 		for (epidx = 0; epidx < hw->max_epid; epidx++) {
 			if (epidx == hw->my_epid)
 				continue;
-- 
1.9.1