[PATCH RESEND] reset: sunxi: fix spinlock initialization

Olof Johansson olof at lixom.net
Mon Jan 12 14:13:25 PST 2015


On Mon, Jan 12, 2015 at 05:17:06PM +0100, Maxime Ripard wrote:
> On Mon, Jan 12, 2015 at 07:54:46AM -0800, Tyler Baker wrote:
> > Call spin_lock_init() before the spinlocks are used, both in early init 
> > and probe functions preventing a lockdep splat.
> > 
> > I have been observing lockdep complaining [1] during boot on my a80 optimus [2]
> > when CONFIG_PROVE_LOCKING has been enabled. This patch resolves the splat,
> > and has been tested on a few other sunxi platforms without issue.
> > 
> > [1] http://storage.kernelci.org/next/next-20150107/arm-multi_v7_defconfig+CONFIG_PROVE_LOCKING=y/lab-tbaker/boot-sun9i-a80-optimus.html
> > [2] http://kernelci.org/boot/?a80-optimus
> > 
> > Signed-off-by: Tyler Baker <tyler.baker at linaro.org>
> > Cc: <stable at vger.kernel.org>
> 
> Acked-by: Maxime Ripard <maxime.ripard at free-electrons.com>

Not entirely sure what to do with this one. You sent it to:arm at kernel.org, but
it should probably have gone to Philipp?

We can pick it up with an ack from him though, no problem.


-Olof



More information about the linux-arm-kernel mailing list