| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.19 07/34] ping: remove pr_err from ping_lookup | Date | Mon, 28 Feb 2022 18:24:13 +0100 |
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From: Xin Long <lucien.xin@gmail.com>
commit cd33bdcbead882c2e58fdb4a54a7bd75b610a452 upstream.
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@kernel.org> Signed-off-by: Xin Long <lucien.xin@gmail.com> Link: https://lore.kernel.org/r/1ef3f2fcd31bd681a193b1fcf235eee1603819bd.1645674068.git.lucien.xin@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- net/ipv4/ping.c | 1 - 1 file changed, 1 deletion(-)
--- a/net/ipv4/ping.c +++ b/net/ipv4/ping.c @@ -192,7 +192,6 @@ static struct sock *ping_lookup(struct n (int)ident, &ipv6_hdr(skb)->daddr, dif); #endif } else { - pr_err("ping: protocol(%x) is not supported\n", ntohs(skb->protocol)); return NULL; }
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