netdev - Re: [PATCH 20/33] ipv4: add ip_sock_set

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Message-ID: <20200514103025.GB12680@lst.de>
Date:   Thu, 14 May 2020 12:30:25 +0200
From:   Christoph Hellwig <hch@....de>
To:     Joe Perches <joe@...ches.com>
Cc:     Christoph Hellwig <hch@....de>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        Alexey Kuznetsov <kuznet@....inr.ac.ru>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
        Vlad Yasevich <vyasevich@...il.com>,
        Neil Horman <nhorman@...driver.com>,
        Marcelo Ricardo Leitner <marcelo.leitner@...il.com>,
        Jon Maloy <jmaloy@...hat.com>,
        Ying Xue <ying.xue@...driver.com>, drbd-dev@...ts.linbit.com,
        linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-rdma@...r.kernel.org, linux-nvme@...ts.infradead.org,
        target-devel@...r.kernel.org, linux-afs@...ts.infradead.org,
        linux-cifs@...r.kernel.org, cluster-devel@...hat.com,
        ocfs2-devel@....oracle.com, netdev@...r.kernel.org,
        linux-sctp@...r.kernel.org, ceph-devel@...r.kernel.org,
        rds-devel@....oracle.com, linux-nfs@...r.kernel.org
Subject: Re: [PATCH 20/33] ipv4: add ip_sock_set_recverr

On Wed, May 13, 2020 at 02:00:43PM -0700, Joe Perches wrote:
> On Wed, 2020-05-13 at 08:26 +0200, Christoph Hellwig wrote:
> > Add a helper to directly set the IP_RECVERR sockopt from kernel space
> > without going through a fake uaccess.
> 
> This seems used only with true as the second arg.
> Is there reason to have that argument at all?

Mostly to keep it symmetric with the sockopt.  I could probably remove
a few arguments in the series if we want to be strict.