netdev - [PATCH net-next 1/1] driver: ipvlan: Remove unnecessary ipvlan NULL check in ipvlan_count

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Message-Id: <1482110679-1967-1-git-send-email-fgao@ikuai8.com>
Date:   Mon, 19 Dec 2016 09:24:39 +0800
From:   fgao@...ai8.com
To:     davem@...emloft.net, maheshb@...gle.com, edumazet@...gle.com,
        netdev@...r.kernel.org, gfree.wind@...il.com
Cc:     Gao Feng <fgao@...ai8.com>
Subject: [PATCH net-next 1/1] driver: ipvlan: Remove unnecessary ipvlan NULL check in ipvlan_count_rx

From: Gao Feng <fgao@...ai8.com>

There are three functions which would invoke the ipvlan_count_rx. They
are ipvlan_process_multicast, ipvlan_rcv_frame, and ipvlan_nf_input.
The former two functions already use the ipvlan directly before
ipvlan_count_rx, and ipvlan_nf_input gets the ipvlan from
ipvl_addr->master, it is not possible to be NULL too.
So the ipvlan pointer check is unnecessary in ipvlan_count_rx.

Signed-off-by: Gao Feng <fgao@...ai8.com>
---
 drivers/net/ipvlan/ipvlan_core.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/net/ipvlan/ipvlan_core.c b/drivers/net/ipvlan/ipvlan_core.c
index b4e9907..082f9f1 100644
--- a/drivers/net/ipvlan/ipvlan_core.c
+++ b/drivers/net/ipvlan/ipvlan_core.c
@@ -19,9 +19,6 @@ void ipvlan_init_secret(void)
 static void ipvlan_count_rx(const struct ipvl_dev *ipvlan,
 			    unsigned int len, bool success, bool mcast)
 {
-	if (!ipvlan)
-		return;
-
 	if (likely(success)) {
 		struct ipvl_pcpu_stats *pcptr;
 
-- 
1.9.1