linux-kernel - Re: [net PATCH v2 1/7] octeontx2-af: Secure APR table update with the lock

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Message-ID: <ZDF7KFavZuM2SoGO@corigine.com>
Date:   Sat, 8 Apr 2023 16:33:12 +0200
From:   Simon Horman <simon.horman@...igine.com>
To:     Sai Krishna <saikrishnag@...vell.com>
Cc:     davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, sgoutham@...vell.com,
        gakula@...vell.com, richardcochran@...il.com, lcherian@...vell.com,
        jerinj@...vell.com, hkelam@...vell.com, sbhatta@...vell.com
Subject: Re: [net PATCH v2 1/7] octeontx2-af: Secure APR table update with
 the lock

On Fri, Apr 07, 2023 at 05:53:38PM +0530, Sai Krishna wrote:
> From: Geetha sowjanya <gakula@...vell.com>
> 
> APR table contains the lmtst base address of PF/VFs.
> These entries are updated by the PF/VF during the
> device probe. Due to race condition while updating the
> entries are getting corrupted. Hence secure the APR
> table update with the lock.

Hi Sai, Geetha,

I think it would be useful to describe what races with
rvu_mbox_handler_lmtst_tbl_setup().

...