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Message-ID: <CAM0EoM==4T=64FH7t4taURugM4d0Stv2oXFgr5+qNBNEe9bjwQ@mail.gmail.com> Date: Mon, 24 Apr 2023 17:53:03 -0400 From: Jamal Hadi Salim <jhs@...atatu.com> To: Jakub Kicinski <kuba@...nel.org> Cc: Stephen Hemminger <stephen@...workplumber.org>, Leon Romanovsky <leon@...nel.org>, Victor Nogueira <victor@...atatu.com>, davem@...emloft.net, edumazet@...gle.com, pabeni@...hat.com, netdev@...r.kernel.org, xiyou.wangcong@...il.com, jiri@...nulli.us, kernel@...atatu.com Subject: Re: [PATCH net v2] net/sched: act_mirred: Add carrier check On Mon, Apr 24, 2023 at 5:36 PM Jakub Kicinski <kuba@...nel.org> wrote: > > On Mon, 24 Apr 2023 13:59:15 -0400 Jamal Hadi Salim wrote: > > > Then fix the driver. It shouldn't hang. > > > Other drivers just drop packets if link is down. > > > > We didnt do extensive testing of drivers but consider this a safeguard > > against buggy driver (its a huge process upgrading drivers in some > > environments). It may even make sense to move this to dev_queue_xmit() > > i.e the arguement is: why is the core sending a packet to hardware > > that has link down to begin with? BTW, I believe the bridge behaves > > this way ... > > I'm with Stephen, even if the check makes sense in general we should > first drill down into the real bug, and squash it. Ok then, I guess in keeping up with the spirit of trivial patches generating the most discussion, these are two separate issues in my opinion: IOW, the driver bug should be fixed (we have reached out to the vendor) - but the patch stands on its own. cheers, jamal > -- > pw-bot: cr
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