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From: Michal Marek <mmarek@suse.cz>
To: Markus Trippelsdorf <markus@trippelsdorf.de>
Cc: Joe Perches <joe@perches.com>,
	Nick Bowler <nbowler@elliptictech.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Mike Frysinger <vapier@gentoo.org>,
	Sam Ravnborg <sam@ravnborg.org>,
	Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Subject: Re: {PATCH] fix __packed in exported kernel headers
Date: Fri, 24 Jun 2011 17:17:29 +0200	[thread overview]
Message-ID: <4E04AA89.9030909@suse.cz> (raw)
In-Reply-To: <20110624135100.GB1708@x4.trippels.de>

On 24.6.2011 15:51, Markus Trippelsdorf wrote:
> checkpatch.pl warns about using __attribute__((packed)) in kernel
> headers: "__packed is preferred over __attribute__((packed))". If one
> follows that advice it could cause problems in the exported header
> files, because the outside world doesn't know about this shortcut.
>
> For example busybox will fail to compile:
>   CC      miscutils/ubi_attach_detach.o
>   In file included from miscutils/ubi_attach_detach.c:27:0:
>   /usr/include/mtd/ubi-user.h:330:3: error: conflicting types for ‘__packed’
>   /usr/include/mtd/ubi-user.h:314:3: note: previous declaration of ‘__packed’ was here
> ...
>
> Fix the problem by substituting __packed with __attribute__((packed)) in
> the header_install.pl script.
>
> Cc: Artem Bityutskiy<Artem.Bityutskiy@nokia.com>
> CC: Joe Perches<joe@perches.com>
> Signed-off-by: Markus Trippelsdorf<markus@trippelsdorf.de>
> ---
>   scripts/headers_install.pl |    1 +
>   1 files changed, 1 insertions(+), 0 deletions(-)

Thanks, applied to kbuild-2.6.git#kbuild.

Michal

  reply	other threads:[~2011-06-24 15:17 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-06-22  6:34 __packed vs. __attribute__((packed)) in kernel headers Markus Trippelsdorf
2011-06-23 13:42 ` Nick Bowler
2011-06-23 15:02   ` Markus Trippelsdorf
2011-06-23 16:57     ` Joe Perches
2011-06-24 13:07       ` Michal Marek
2011-06-24 13:51         ` {PATCH] fix __packed in exported " Markus Trippelsdorf
2011-06-24 15:17           ` Michal Marek [this message]
2011-06-24 16:33           ` Arnd Bergmann
2011-06-24 17:00             ` Mike Frysinger
2011-06-30 18:26               ` H. Peter Anvin
2011-06-30 18:48                 ` Mike Frysinger
2011-06-30 18:52                   ` H. Peter Anvin
2011-06-30 18:58                     ` Mike Frysinger
2011-06-30 19:01                       ` H. Peter Anvin
2011-06-30 19:13                         ` Mike Frysinger
2011-06-30 20:02                           ` H. Peter Anvin
2011-06-30 21:56                             ` Mike Frysinger
2011-06-24 17:01             ` Markus Trippelsdorf
2011-06-23 17:04 ` __packed vs. __attribute__((packed)) in " richard -rw- weinberger
2011-06-23 17:46   ` Markus Trippelsdorf
2011-06-23 17:54 ` Mike Frysinger

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