[PATCH] net: Avoid unnecessary inet_addr_type() call when addr is INADDR_ANY

[Miaohe Lin]

We can avoid unnecessary inet_addr_type() call by check addr against
INADDR_ANY first.

Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
---
 net/ipv4/ping.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index cc09d1135ce2..19a947bf0faa 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -310,10 +310,10 @@ static int ping_check_bind_addr(struct sock *sk, struct inet_sock *isk,
 		pr_debug("ping_check_bind_addr(sk=%p,addr=%pI4,port=%d)\n",
 			 sk, &addr->sin_addr.s_addr, ntohs(addr->sin_port));
 
-		chk_addr_ret = inet_addr_type(net, addr->sin_addr.s_addr);
-
 		if (addr->sin_addr.s_addr == htonl(INADDR_ANY))
 			chk_addr_ret = RTN_LOCAL;
+		else
+			chk_addr_ret = inet_addr_type(net, addr->sin_addr.s_addr);
 
 		if ((!inet_can_nonlocal_bind(net, isk) &&
 		     chk_addr_ret != RTN_LOCAL) ||
-- 
2.19.1