linux-kernel - Re: randconfig build error with next-20141204, in drivers/pwm

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Message-ID: <20141218094442.GA24383@ulmo>
Date:	Thu, 18 Dec 2014 10:44:44 +0100
From:	Thierry Reding <thierry.reding@...il.com>
To:	Jim Davis <jim.epost@...il.com>
Cc:	Stephen Rothwell <sfr@...b.auug.org.au>,
	Boris Brezillon <boris.brezillon@...e-electrons.com>,
	linux-next <linux-next@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	linux-pwm@...r.kernel.org
Subject: Re: randconfig build error with next-20141204, in drivers/pwm

On Thu, Dec 04, 2014 at 09:10:55AM -0700, Jim Davis wrote:
> Building with the attached random configuration file,
> 
> ERROR: "____ilog2_NaN" [drivers/pwm/pwm-atmel-hlcdc.ko] undefined!

This took a while to figure out. The attached patch fixes this build
failure, though the driver should probably be fixed to avoid division by
zero, just in case. Adding Boris for visibility.

Thierry

View attachment "0001-pwm-atmel-hlcdc-Depend-on-HAVE_CLK.patch" of type "text/x-diff" (2030 bytes)

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