lkml.org 
[lkml]   [2007]   [Jun]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [patch] use __asm__ and __volatile__ in i386/arm/s390 byteorder.h
From
Date
On Mon, 2007-06-18 at 01:24 +0200, Arnd Bergmann wrote:
> On Monday 18 June 2007, Arjan van de Ven wrote:
> >
> > On Sun, 2007-06-17 at 18:33 -0400, Mike Frysinger wrote:
> > > This changes asm() to __asm__() and volatile to __volatile__ so that these
> > > headers can be used with gcc's -std=c99.
> >
> > hmm but the kernel doesn't use -std=c99...
>
> The byteorder headers are exported to user space through
> include/asm-generic/Kbuild.asm, and they are used by a number
> of other exported headers, so they should work with any
> gcc flags that a user might want to use.

Even those headers which are exported are _still_ kernel headers¹. The
'caveat emptor' principle still applies to them, and we don't have to be
_that_ anal about it. GNU extensions (and proper C types, for that
matter) should be acceptable, surely?

--
dwmw2

¹ well, except perhaps for the very few headers which get included
directly by glibc's headers, but aren't we still pretending that
doesn't happen?


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

\
 
 \ /
  Last update: 2007-06-18 10:53    [W:0.040 / U:0.648 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site