linux-kernel - Re: [PATCH -mm] x86_64: kill 19000+ sparse warnings

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Message-ID: <Pine.LNX.4.61.0704270849100.506@yvahk01.tjqt.qr>
Date:	Fri, 27 Apr 2007 08:49:54 +0200 (MEST)
From:	Jan Engelhardt <jengelh@...ux01.gwdg.de>
To:	Andi Kleen <ak@...e.de>
cc:	Randy Dunlap <randy.dunlap@...cle.com>,
	lkml <linux-kernel@...r.kernel.org>,
	akpm <akpm@...ux-foundation.org>
Subject: Re: [PATCH -mm] x86_64: kill 19000+ sparse warnings


On Apr 26 2007 11:24, Andi Kleen wrote:
>On Thursday 26 April 2007 07:45:09 Randy Dunlap wrote:
>> From: Randy Dunlap <randy.dunlap@...cle.com>
>> 
>> Eliminate 19439 (!!) sparse warnings like:
>> include/linux/mm.h:321:22: warning: constant 0xffff810000000000 is so big it is unsigned long
>
>Sparse is just wrong here. The C standard does make it unsigned long long
>automatically

Wish it did...

(32bit i386):
08:47 ichi:/dev/shm > cat foo.c
unsigned long long a = 0x123456789;
08:47 ichi:/dev/shm > cc -c foo.c -Wall
foo.c:1: warning: integer constant is too large for ‘long’ type
Or is this something else?

Jan
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