linux-kernel - Re: [PATCH 5/9] drivers: clk: st: Fix flexgen lock init

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Date:	Thu, 2 Jul 2015 09:59:52 -0700
From:	Stephen Boyd <sboyd@...eaurora.org>
To:	Gabriel Fernandez <gabriel.fernandez@...aro.org>
Cc:	Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Srinivas Kandagatla <srinivas.kandagatla@...il.com>,
	Maxime Coquelin <maxime.coquelin@...com>,
	Patrice Chotard <patrice.chotard@...com>,
	Russell King <linux@....linux.org.uk>,
	Michael Turquette <mturquette@...libre.com>,
	Peter Griffin <peter.griffin@...aro.org>,
	Pankaj Dev <pankaj.dev@...com>,
	Olivier Bideau <olivier.bideau@...com>,
	Javier Martinez Canillas <javier.martinez@...labora.co.uk>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Fabian Frederick <fabf@...net.be>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	kernel@...inux.com, linux-clk@...r.kernel.org
Subject: Re: [PATCH 5/9] drivers: clk: st: Fix flexgen lock init

On 06/23, Gabriel Fernandez wrote:
> From: Giuseppe Cavallaro <peppe.cavallaro@...com>
> 
> While proving lock, the following warning happens
> and it is fixed after initializing lock in the setup
> function
> 
> INFO: trying to register non-static key.
> the code is fine but needs lockdep annotation.
> turning off the locking correctness validator.
> CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.10.27-02861-g39df285-dirty #33
> [<c00154ac>] (unwind_backtrace+0x0/0xf4) from [<c0011b50>] (show_stack+0x10/0x14)
> [<c0011b50>] (show_stack+0x10/0x14) from [<c00689ac>] (__lock_acquire+0x900/0xb14)
> [<c00689ac>] (__lock_acquire+0x900/0xb14) from [<c0069394>] (lock_acquire+0x68/0x7c)
> [<c0069394>] (lock_acquire+0x68/0x7c) from [<c04958f8>] (_raw_spin_lock_irqsave+0x48/0x5c)
> [<c04958f8>] (_raw_spin_lock_irqsave+0x48/0x5c) from [<c0381e6c>] (clk_gate_endisable+0x28/0x88)
> [<c0381e6c>] (clk_gate_endisable+0x28/0x88) from [<c0381ee0>] (clk_gate_enable+0xc/0x14)
> [<c0381ee0>] (clk_gate_enable+0xc/0x14) from [<c0386c68>] (flexgen_enable+0x28/0x40)
> [<c0386c68>] (flexgen_enable+0x28/0x40) from [<c037f260>] (__clk_enable+0x5c/0x9c)
> [<c037f260>] (__clk_enable+0x5c/0x9c) from [<c037f558>] (clk_enable+0x18/0x2c)
> [<c037f558>] (clk_enable+0x18/0x2c) from [<c064a1dc>] (st_lpc_of_register+0xc0/0x248)
> [<c064a1dc>] (st_lpc_of_register+0xc0/0x248) from [<c0649e44>] (clocksource_of_init+0x34/0x58)
> [<c0649e44>] (clocksource_of_init+0x34/0x58) from [<c0637ddc>] (sti_timer_init+0x10/0x18)
> [<c0637ddc>] (sti_timer_init+0x10/0x18) from [<c06343f8>] (time_init+0x20/0x30)
> [<c06343f8>] (time_init+0x20/0x30) from [<c0632984>] (start_kernel+0x20c/0x2e8)
> [<c0632984>] (start_kernel+0x20c/0x2e8) from [<40008074>] (0x40008074)
> 
> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@...com>
> Signed-off-by: Gabriel Fernandez <gabriel.fernandez@...aro.org>
> ---

Applied to clk-fixes

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