linux-kernel - Re: [PATCH stable 0/3] SOF_TIMESTAMPING_OPT

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Date:   Fri, 8 Apr 2022 15:29:30 +0000
From:   Vladimir Oltean <vladimir.oltean@....com>
To:     Sasha Levin <sashal@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable <stable@...r.kernel.org>
CC:     lkml <linux-kernel@...r.kernel.org>,
        Willem de Bruijn <willemdebruijn.kernel@...il.com>,
        Soheil Hassas Yeganeh <soheil@...gle.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Jakub Kicinski <kuba@...nel.org>,
        "David S. Miller" <davem@...emloft.net>
Subject: Re: [PATCH stable 0/3] SOF_TIMESTAMPING_OPT_ID backport to 4.14 and
 4.19

Hello Greg, Sasha,

On Wed, Apr 06, 2022 at 10:29:53PM +0300, Vladimir Oltean wrote:
> As discussed with Willem here:
> https://lore.kernel.org/netdev/CA+FuTSdQ57O6RWj_Lenmu_Vd3NEX9xMzMYkB0C3rKMzGgcPc6A@mail.gmail.com/T/
> 
> the kernel silently doesn't act upon the SOF_TIMESTAMPING_OPT_ID socket
> option in several cases on older kernels, yet user space has no way to
> find out about this, practically resulting in broken functionality.
> 
> This patch set backports the support towards linux-4.14.y and linux-4.19.y,
> which fixes the issue described above by simply making the kernel act
> upon SOF_TIMESTAMPING_OPT_ID as expected.
> 
> Testing was done with the most recent (not the vintage-correct one)
> kselftest script at:
> tools/testing/selftests/networking/timestamping/txtimestamp.sh
> with the message "OK. All tests passed".

Could you please pick up these backports for "stable"? Thanks.