[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 <linmia...@huawei.com>
---
 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