Subject: Re: [PATCH] powerpc: Add configurable -Werror for arch/powerpc

From: Michael Ellerman <[email-masked]>
Date: Mon, 15 Jun 2009 17:50:41 +1000

On Wed, 2009-06-10 at 16:48 +1000, Michael Ellerman wrote:
> Add the option to build the code under arch/powerpc with -Werror.
> 
> The intention is to make it harder for people to inadvertantly introduce
> warnings in the arch/powerpc code. It needs to be configurable so that
> if a warning is introduced, people can easily work around it while it's
> being fixed.
> 
> The option is a negative, ie. don't enable -Werror, so that it will be
> turned on for allyes and allmodconfig builds.
> 
> The default is n, in the hope that developers will build with -Werror,
> that will probably lead to some build breaks, I am prepared to be flamed.

Currently this appears to break only one of the defconfigs, chrp32.

http://kisskb.ellerman.id.au/kisskb/head/1907/

And that's a legitimate error AFAICT:

arch/powerpc/platforms/chrp/setup.c:378: error: the frame size of 1040 bytes is larger than 1024 bytes

From:

367 void
368 chrp_event_scan(unsigned long unused)
369 {
370         unsigned char log[1024];
371         int ret = 0;

cheers