linux-kernel - Re: [PATCH net 1/2] socket: fix option SO_TIMESTAMPING

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Date:   Fri, 9 Oct 2020 17:30:30 -0700
From:   Deepa Dinamani <deepa.kernel@...il.com>
To:     Christian Eggers <ceggers@...i.de>
Cc:     "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Willem de Bruijn <willemb@...gle.com>,
        Christoph Hellwig <hch@....de>,
        Linux Network Devel Mailing List <netdev@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH net 1/2] socket: fix option SO_TIMESTAMPING_NEW

On Fri, Oct 9, 2020 at 3:32 AM Christian Eggers <ceggers@...i.de> wrote:
>
> The comparison of optname with SO_TIMESTAMPING_NEW is wrong way around,
> so SOCK_TSTAMP_NEW will first be set and than reset again. Additionally
> move it out of the test for SOF_TIMESTAMPING_RX_SOFTWARE as this seems
> unrelated.

The SOCK_TSTAMP_NEW is reset only in the case when
SOF_TIMESTAMPING_RX_SOFTWARE is not set.
Note that we only call sock_enable_timestamp() at that time.

Why would SOCK_TSTAMP_NEW be relevant otherwise?

-Deepa