linux-kernel - Re: [Intel-gfx] [PATCH v3 0/2] mei: add timeout to send

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Date:   Wed, 30 Nov 2022 18:43:09 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Rodrigo Vivi <rodrigo.vivi@...el.com>
Cc:     Alexander Usyskin <alexander.usyskin@...el.com>,
        Jani Nikula <jani.nikula@...ux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        David Airlie <airlied@...hat.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com>,
        linux-kernel@...r.kernel.org,
        Tomas Winkler <tomas.winkler@...el.com>,
        Vitaly Lubart <vitaly.lubart@...el.com>,
        intel-gfx@...ts.freedesktop.org
Subject: Re: [Intel-gfx] [PATCH v3 0/2] mei: add timeout to send

On Wed, Nov 30, 2022 at 09:20:28AM -0500, Rodrigo Vivi wrote:
> On Wed, Nov 16, 2022 at 02:47:33PM +0200, Alexander Usyskin wrote:
> > When driver wakes up the firmware from the low power state,
> > it is sending a memory ready message.
> > The send is done via synchronous/blocking function to ensure
> > that firmware is in ready state. However, in case of firmware
> > undergoing reset send might be block forever.
> > To address this issue a timeout is added to blocking
> > write command on the internal bus.
> > 
> > Introduce the __mei_cl_send_timeout function to use instead of
> > __mei_cl_send in cases where timeout is required.
> > The mei_cl_write has only two callers and there is no need to split
> > it into two functions.
> > 
> > V2: address review comments:
> >  - split __mei_cl_send and __mei_cl_send_timeout
> >  - add units to timeout KDoc
> >  - use MAX_SCHEDULE_TIMEOUT to squash wait to one macro
> > 
> > V3: - split the state fix into separate patch
> >     - document define unit
> >     - expand timeout KDoc
> 
> These 2 patches looks good to me now.
> 
> Greg, whenever you review it, please let me know if it is
> okay to me to push these through the drm-fixes, or if you
> prefer these to the mei branches.

These have been in my tree for over a week now, sorry.  No one told me
not to take them...

{sigh}

greg k-h