From: Darren Hart <dvhart@infradead.org>
To: "Pali Rohár" <pali.rohar@gmail.com>,
"Rafael Wysocki" <rjw@rjwysocki.net>
Cc: Gabriele Mazzotta <gabriele.mzt@gmail.com>,
platform-driver-x86@vger.kernel.org,
linux-kernel@vger.kernel.org,
Andrei Borzenkov <arvidjaar@gmail.com>
Subject: Re: [PATCH] dell-rbtn: Ignore ACPI notifications if device is suspended
Date: Mon, 23 Nov 2015 11:24:43 -0800 [thread overview]
Message-ID: <20151123192443.GX7413@malice.jf.intel.com> (raw)
In-Reply-To: <20151123144858.GE24147@pali>
On Mon, Nov 23, 2015 at 03:48:58PM +0100, Pali Rohár wrote:
> On Saturday 21 November 2015 15:16:15 Gabriele Mazzotta wrote:
> > Some BIOSes unconditionally send an ACPI notification to RBTN when the
> > system is resuming from suspend. This makes dell-rbtn send an input
> > event to userspace as if a function key was pressed. Prevent this by
> > ignoring all the notifications received while the device is suspended.
> >
> > Link: https://bugzilla.kernel.org/show_bug.cgi?id=106031
> > Signed-off-by: Gabriele Mazzotta <gabriele.mzt@gmail.com>
>
> Andrei Borzenkov (CCed) tested this patch and patch does not fix bug.
> Probably there is race condition and ACPI event is sent *after* function
> rbtn_resume is called.
I'm dropping this one until we can sort out a proper fix.
Is direction still needed from the ACPI side?
+Rafael
--
Darren Hart
Intel Open Source Technology Center
prev parent reply other threads:[~2015-11-23 19:24 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-21 14:16 [PATCH] dell-rbtn: Ignore ACPI notifications if device is suspended Gabriele Mazzotta
2015-11-21 19:18 ` Pali Rohár
2015-11-23 14:48 ` Pali Rohár
2015-11-23 19:24 ` Darren Hart [this message]
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