netdev - Re: [PATCH net-next] net: Remove redundant if statements

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Date:   Fri, 06 Aug 2021 09:13:21 +0000
From:   yajun.deng@...ux.dev
To:     "Matthieu Baerts" <matthieu.baerts@...sares.net>,
        davem@...emloft.net, kuba@...nel.org
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next] net: Remove redundant if statements

August 6, 2021 4:58 PM, "Matthieu Baerts" <matthieu.baerts@...sares.net> wrote:

> Hi Yajun,
> 
> Thank you for sharing this patch.
> 
> On 06/08/2021 08:38, Yajun Deng wrote:
> 
>> The if statement already move into sock_{put , hold},
>> just remove it.
> 
> I was wondering in which subtree you had 'sock_put' checking the socket
> pointer but then I realised you sent another patch just before adding
> this check: "net: sock: add the case if sk is NULL"
> 
> Please next time send them in the same series to clearly indicate that
> this is the 2nd patch (2/2) and it depends on patch 1/2.
> 
OK, Thank you for your advice.

> Related to the modification in MPTCP part: it looks OK but we do a few
> other calls to 'sock_put()' where we don't need to check if the socket
> is NULL or not.
> 
> In other words, if your patch "net: sock: add the case if sk is NULL" is
> accepted, then the modification in "net/mptcp/subflow.c" is OK for us.
> 
> Cheers,
> Matt
> --
> Tessares | Belgium | Hybrid Access Solutions
> www.tessares.net