linux-kernel - Re: [PATCH RESEND net-next v5 3/4] net: icmp: introduce __ping_queue_rcv

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Date:   Fri, 8 Apr 2022 22:05:10 -0600
From:   David Ahern <dsahern@...nel.org>
To:     menglong8.dong@...il.com, kuba@...nel.org, pabeni@...hat.com
Cc:     rostedt@...dmis.org, mingo@...hat.com, xeb@...l.ru,
        davem@...emloft.net, yoshfuji@...ux-ipv6.org,
        imagedong@...cent.com, edumazet@...gle.com, kafai@...com,
        talalahmad@...gle.com, keescook@...omium.org, alobakin@...me,
        flyingpeng@...cent.com, mengensun@...cent.com,
        dongli.zhang@...cle.com, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, benbjiang@...cent.com
Subject: Re: [PATCH RESEND net-next v5 3/4] net: icmp: introduce
 __ping_queue_rcv_skb() to report drop reasons

On 4/7/22 12:20 AM, menglong8.dong@...il.com wrote:
> From: Menglong Dong <imagedong@...cent.com>
> 
> In order to avoid to change the return value of ping_queue_rcv_skb(),
> introduce the function __ping_queue_rcv_skb(), which is able to report
> the reasons of skb drop as its return value, as Paolo suggested.
> 
> Meanwhile, make ping_queue_rcv_skb() a simple call to
> __ping_queue_rcv_skb().
> 
> The kfree_skb() and sock_queue_rcv_skb() used in ping_queue_rcv_skb()
> are replaced with kfree_skb_reason() and sock_queue_rcv_skb_reason()
> now.
> 
> Reviewed-by: Hao Peng <flyingpeng@...cent.com>
> Reviewed-by: Jiang Biao <benbjiang@...cent.com>
> Signed-off-by: Menglong Dong <imagedong@...cent.com>
> ---
> v4:
> - fix the return value problem of ping_queue_rcv_skb()
> 
> v3:
> - fix aligenment problem
> 
> v2:
> - introduce __ping_queue_rcv_skb() instead of change the return value
>   of ping_queue_rcv_skb()
> ---
>  net/ipv4/ping.c | 18 +++++++++++++-----
>  1 file changed, 13 insertions(+), 5 deletions(-)
> 


Reviewed-by: David Ahern <dsahern@...nel.org>