linux-kernel - Re: linux-next: Tree for Jan 30 (clk related WARNING on arm)

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Message-ID: <54CE7552.9070600@roeck-us.net>
Date:	Sun, 01 Feb 2015 10:49:54 -0800
From:	Guenter Roeck <linux@...ck-us.net>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>
CC:	Stephen Rothwell <sfr@...b.auug.org.au>,
	Linux-Next <linux-next@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Tomeu Vizoso <tomeu.vizoso@...labora.com>,
	Stephen Boyd <sboyd@...eaurora.org>
Subject: Re: linux-next: Tree for Jan 30 (clk related WARNING on arm)

On 02/01/2015 01:23 AM, Geert Uytterhoeven wrote:
> On Fri, Jan 30, 2015 at 8:07 PM, Guenter Roeck <linux@...ck-us.net> wrote:
>> On Fri, Jan 30, 2015 at 06:02:09PM +1100, Stephen Rothwell wrote:
>>> Hi all,
>>>
>>> Changes since 20150129:
>>>
>>> The arm-soc gained conflicts against the arm-current and arm trees.
>>>
>>> The spi tree gained a build failure for which I reverted a commit.
>>>
>>> Non-merge commits (relative to Linus' tree): 6300
>>>   6348 files changed, 255117 insertions(+), 131620 deletions(-)
>>>
>>> ----------------------------------------------------------------------------
>>>
>> I see the following runtime warning repeatedly (with different call
>> paths to vexpress_osc_round_rate) with my qemu vexpress test.
>>
>> Bisect points to commit cb75a8fcd14e71 ("clk: Add rate constraints to clocks").
>>
>> Guenter
>>
>> ---
>> WARNING: CPU: 0 PID: 1 at drivers/clk/versatile/clk-vexpress-osc.c:47
>> vexpress_osc_round_rate+0x58/0x64()
>
> See also the thread started at
> http://www.spinics.net/lists/linux-doc/msg28017.html
>
> Will try the patch after FOSDEM.
>
Hi Geert,

thanks a lot for the pointer.

Stephen Boyd's patch ("clk: Assign a requested rate by default")
fixes the problem seen in my test. Stephen, please feel free to add

Tested-by: Guenter Roeck <linux@...ck-us.net>

to that patch.

Thanks,
Guenter

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