Re: [GIT] HID

From: Jiri Kosina
Date: Fri May 10 2013 - 07:49:40 EST


On Fri, 10 May 2013, Ingo Molnar wrote:

> hi Jiri,
>
> * Jiri Kosina <jkosina@xxxxxxx> wrote:
>
> > Linus,
> >
> > please pull from
> >
> > git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid.git for-linus
> >
> > to receive HID subsystem updates for 3.10. Highlights:
> >
> >
> > - hid driver transport cleanup, finalizing the long-desired decoupling of
> > core from transport layers, by Benjamin Tissoires and Henrik Rydberg
> > - support for hybrid finger/pen multitouch HID devices, by Benjamin
> > Tissoires
> > - fix for long-standing issue in Logitech unifying driver sometimes not
> > inializing properly due to device specifics, by Andrew de los Reyes
> > - Wii remote driver updates to support 2nd generation of devices, by David
> > Herrmann
> > - support for Apple IR remote
> > - roccat driver now supports new devices (Roccat Kone Pure, IskuFX), by
> > Stefan Achatz
> > - debugfs locking fixes in hid debug interface, by Jiri Kosina
>
> FYI, there's a new HID related lockdep and RCU splat upstream, probably
> relatd to the debugfs locking fixes:
>
> [ 79.088631] ======================================================
> [ 79.088631] [ INFO: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected ]
> [ 79.088631] 3.9.0-13694-g7cf229a-dirty #224212 Tainted: G W
> [ 79.088631] ------------------------------------------------------
> [ 79.088631] swapper/0/1 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire:
> [ 79.088631] (&hdev->debug_list_lock){+.+...}, at: [<ffffffff82e510d9>] hid_debug_event+0x2e/0xd0
> [ 79.088631]
>
> See the full bootlog below. It's from an allyesconfig x86-64 bootup log.

Hi Ingo,

thanks for the report. I have a fix for this in my tree already and am
going to send pull request to Linus shortly.

Thanks,

--
Jiri Kosina
SUSE Labs
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