linux-kernel - Re: __packed vs. __attribute_

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Message-ID: <1308848277.6688.7.camel@Joe-Laptop>
Date:	Thu, 23 Jun 2011 09:57:57 -0700
From:	Joe Perches <joe@...ches.com>
To:	Markus Trippelsdorf <markus@...ppelsdorf.de>
Cc:	Nick Bowler <nbowler@...iptictech.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Mike Frysinger <vapier@...too.org>,
	Sam Ravnborg <sam@...nborg.org>,
	Artem Bityutskiy <Artem.Bityutskiy@...ia.com>
Subject: Re: __packed vs. __attribute__((packed)) in kernel headers

On Thu, 2011-06-23 at 17:02 +0200, Markus Trippelsdorf wrote:
> On 2011.06.23 at 09:42 -0400, Nick Bowler wrote:
> > On 2011-06-22 08:34 +0200, Markus Trippelsdorf wrote:
> > > One possible solution would be to let the "scripts/headers_install.pl"
> > > script automatically substitute __packed with __attribute__((packed)):
> > > 
> > > diff --git a/scripts/headers_install.pl b/scripts/headers_install.pl
[]
> I'm not an expert of Perl regular expressions, but maybe this:
>  $line =~ s/\s__packed;$/ __attribute__((packed));/g
> is a little bit closer to the intention?

Maybe:

s/\b__packed\b/__attribute__((packed))/g

though this argues against redefining
gcc __attributes__ in the first place. 

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