Re: [2.6 patch] add -Werror-implicit-function-declaration to CFLAGS

Olaf Hering
2005-08-30T16:38:25Z

On Tue, Aug 30, Adrian Bunk wrote:

> On Tue, Aug 30, 2005 at 06:18:14PM +0200, Olaf Hering wrote:
> > On Tue, Aug 30, Adrian Bunk wrote:
> >
> > > Currently, using an undeclared function gives a compile warning, but it
> > > can lead to a link or even a runtime error.
> > >
> > > With -Werror-implicit-function-declaration, we are getting an immediate
> > > compile error instead.
> >
> > You have to fix CONFIG_SWAP=n as well.
> >
> > http://lkml.org/lkml/2005/8/6/72
>
> I don't see any such warning in the 2.6.13 sparc build at Jan's
> crosscompile page [1], and all my patch does is to turn a warning into
> an error.

page_cache_release and release_pages will be undefined when compiling
arch/ppc/configs/common_defconfig, but not arch/i386/defconfig, with
CONFIG_SWAP=n