linux-kernel - Re: [PATCH v2 1/3] driver core: Call sync_state() even if supplier has no consumers

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Date:   Fri, 21 Feb 2020 01:48:49 -0800
From:   Saravana Kannan <saravanak@...gle.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Android Kernel Team <kernel-team@...roid.com>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 1/3] driver core: Call sync_state() even if supplier
 has no consumers

On Fri, Feb 21, 2020 at 1:25 AM Greg Kroah-Hartman
<gregkh@...uxfoundation.org> wrote:
>
> On Fri, Feb 21, 2020 at 12:05:08AM -0800, Saravana Kannan wrote:
> > The initial patch that added sync_state() support didn't handle the case
> > where a supplier has no consumers. This was because when a device is
> > successfully bound with a driver, only its suppliers were checked to see
> > if they are eligible to get a sync_state(). This is not sufficient for
> > devices that have no consumers but still need to do device state clean
> > up. So fix this.
> >
> > Fixes: fc5a251d0fd7ca90 (driver core: Add sync_state driver/bus callback)
>
> Should be:
> Fixes: fc5a251d0fd7 ("driver core: Add sync_state driver/bus callback")

Sorry, late night sleepy patches are never good!
Btw I thought the sha should be only 12 characters but then saw
another instance where you used 16 chars. What's the right one?

>
> > Signed-off-by: Saravana Kannan <saravanak@...gle.com>
>
> So this needs to go to 5.5 also, right?

Did you mean 5.4? Yes.

-Saravana