Re: linux-next: suspend tree build warnings

From: Greg KH
Date: Wed Aug 19 2009 - 19:39:57 EST


On Wed, Aug 19, 2009 at 11:38:03PM +0200, Rafael J. Wysocki wrote:
> On Wednesday 19 August 2009, Stephen Rothwell wrote:
> > Hi Rafael,
>
> Hi,
>
> > Today's linux-next build (x86_64 allmodconfig) produced these warnings:
> >
> > drivers/media/dvb/frontends/dib7000p.c: In function âdib7000p_i2c_enumerationâ:
> > drivers/media/dvb/frontends/dib7000p.c:1315: warning: the frame size of 2256 bytes is larger than 2048 bytes
> > drivers/media/dvb/frontends/dib3000mc.c: In function âdib3000mc_i2c_enumerationâ:
> > drivers/media/dvb/frontends/dib3000mc.c:853: warning: the frame size of 2160 bytes is larger than 2048 bytes
> >
> > Introduced by commit 99307958cc9c1b0b2e0dad4bbefdafaf9ac5a681 ("PM:
> > Introduce core framework for run-time PM of I/O devices (rev. 17)").
>
> Well.
>
> This commit increases the size of struct device quite a bit and both of the
> drivers above create a "state" object on the stack that contains struct device
> among other things.

Ick. struct device should _never_ be on the stack, why would this code
want to do such a thing?

thanks,

greg k-h
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/