Re: [rfc] headers_check cleanups break the whole world

From: H. Peter Anvin
Date: Wed Feb 25 2009 - 02:12:50 EST


Kyle McMartin wrote:
>
> Yeah, sorry, I should have been clearer, libcap does stupid
> #define _LINUX_TYPES_H_
> typedef unsigned int __u32;
> #include <linux/header.h>
>
> Which is just horribly broken when it's included early in a file and
> then we try to #include <asm/sigcontext.h> (and doesn't get the rest
> of those types since it now includes <linux/types.h> instead of
> <asm/types.h>) (coreutils was doing this.)
>
> The real case is something like using the dvb headers, which legitimately
> is trying to include both <sys/*.h> and then <linux/dvb/*.h> and expecting
> it to work.
>
> The footnote in the prior mail was really just an example of why not
> having just the plain __u32 et al types in their own header.
>

Because <linux/types.h> should work just fine once we get rid of the
__KERNEL_STRICT_NAMES idiocy?

FWIW, Arnd Bergmann has been working on exactly this cleanup.

-hpa

--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.

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