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

From: Arnd Bergmann <[email-masked]>
Date: Thu, 18 Jun 2009 16:22:18 +0200

On Monday 15 June 2009, Timur Tabi wrote:
> On Mon, Jun 15, 2009 at 2:50 AM, Michael Ellerman<[email-masked]> wrote:
> > arch/powerpc/platforms/chrp/setup.c:378: error: the frame size of 1040 bytes is larger than 1024 bytes
> 
> What's so bad about a frame size larger than 1024?
> 

It's not necessarily a bug, but all frame sizes in the call chain
combined must never exceed the kernel stack size. 1024 is an
arbitrary limit that we warn about for a single function, because
it's likely that things will break if you have more than one of these.

	Arnd <><