netdev - [PATCH next 1/3] net: remove duplicate code.

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Message-Id: <20170118230249.20744-1-mahesh@bandewar.net>
Date:   Wed, 18 Jan 2017 15:02:49 -0800
From:   Mahesh Bandewar <mahesh@...dewar.net>
To:     David Miller <davem@...emloft.net>
Cc:     Eric Dumazet <edumazet@...gle.com>,
        netdev <netdev@...r.kernel.org>,
        Mahesh Bandewar <mahesh@...dewar.net>,
        Mahesh Bandewar <maheshb@...gle.com>
Subject: [PATCH next 1/3] net: remove duplicate code.

From: Mahesh Bandewar <maheshb@...gle.com>

netdev_rx_handler_register() checks to see if the handler is already
busy which was recently separated into netdev_is_rx_handler_busy(). So
use the same function inside register() to avoid code duplication.
Essentially this change should be a no-op

Signed-off-by: Mahesh Bandewar <maheshb@...gle.com>
---
 net/core/dev.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/net/core/dev.c b/net/core/dev.c
index ad5959e56116..c8f1f67ff16c 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3961,9 +3961,7 @@ int netdev_rx_handler_register(struct net_device *dev,
 			       rx_handler_func_t *rx_handler,
 			       void *rx_handler_data)
 {
-	ASSERT_RTNL();
-
-	if (dev->rx_handler)
+	if (netdev_is_rx_handler_busy(dev))
 		return -EBUSY;
 
 	/* Note: rx_handler_data must be set before rx_handler */
-- 
2.11.0.483.g087da7b7c-goog