netdev - [PATCH net] ping: remove pr_err from ping

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Message-Id: <1ef3f2fcd31bd681a193b1fcf235eee1603819bd.1645674068.git.lucien.xin@gmail.com>
Date:   Wed, 23 Feb 2022 22:41:08 -0500
From:   Xin Long <lucien.xin@...il.com>
To:     network dev <netdev@...r.kernel.org>
Cc:     davem@...emloft.net, kuba@...nel.org
Subject: [PATCH net] ping: remove pr_err from ping_lookup

As Jakub noticed, prints should be avoided on the datapath.
Also, as packets would never come to the else branch in
ping_lookup(), remove pr_err() from ping_lookup().

Fixes: 35a79e64de29 ("ping: fix the dif and sdif check in ping_lookup")
Reported-by: Jakub Kicinski <kuba@...nel.org>
Signed-off-by: Xin Long <lucien.xin@...il.com>
---
 net/ipv4/ping.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index 3a5994b50571..3ee947557b88 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -187,7 +187,6 @@ static struct sock *ping_lookup(struct net *net, struct sk_buff *skb, u16 ident)
 			 (int)ident, &ipv6_hdr(skb)->daddr, dif);
 #endif
 	} else {
-		pr_err("ping: protocol(%x) is not supported\n", ntohs(skb->protocol));
 		return NULL;
 	}
 
-- 
2.31.1