linux-kernel - Re: [PATCH] kprobes: Fix compiler warning

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Message-Id: <8DAAF0FE-E76A-4C1F-94B7-36BE839EA6BE@kernel.crashing.org>
Date:	Tue, 30 Jan 2007 01:05:47 -0600
From:	Kumar Gala <galak@...nel.crashing.org>
To:	ananth@...ibm.com
Cc:	linux-kernel@...r.kernel.org, Andrew Morton <akpm@...l.org>,
	prasanna@...ibm.com, anil.s.keshavamurthy@...el.com,
	davem@...emloft.net, Paul Mackerras <paulus@...ba.org>,
	masami.hiramatsu.pt@...achi.com
Subject: Re: [PATCH] kprobes: Fix compiler warning


On Jan 29, 2007, at 11:55 PM, Ananth N Mavinakayanahalli wrote:

> On Mon, Jan 29, 2007 at 11:43:33PM -0600, Kumar Gala wrote:
>> On ppc the compiler gripes about:
>>
>> kernel/kprobes.c: In function 'collect_garbage_slots':
>> kernel/kprobes.c:215: warning: comparison is always false due to  
>> limited
>> range of data type
>>
>> The compiler ends up optimizing away the test since char's are  
>> unsigned on
>> ppc.
>
> Kumar,
>
> Masami fixed this last week:
>
> http://marc.theaimsgroup.com/?l=linux-kernel&m=116968723823366&w=2
>
> Patch currently in -mm.
>
> Thanks,
> Ananth

Cool, Masami's patch looks far more complete.

- k

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