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From: Richard Weinberger <richard@nod.at>
To: Manfred Schlaegl <manfred.schlaegl@gmx.at>,
	Jeff Dike <jdike@addtoit.com>
Cc: Daniel Walter <dwalter@google.com>,
	Randy Dunlap <rdunlap@infradead.org>,
	user-mode-linux-devel@lists.sourceforge.net,
	user-mode-linux-user@lists.sourceforge.net,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] um: Remove unused bp stack-frame pointer
Date: Sat, 18 Oct 2014 17:19:28 +0200	[thread overview]
Message-ID: <54428500.6020304@nod.at> (raw)
In-Reply-To: <54428348.2050209@gmx.at>

Am 18.10.2014 um 17:12 schrieb Manfred Schlaegl:
> On 2014-10-18 16:42, Richard Weinberger wrote:
>> Am 18.10.2014 um 16:23 schrieb Manfred Schlaegl:
>>> The pointer to bp stack-frame is no longer used. Removed it.
>>
>> Good catch!
> Thank you.
> 
>>
>>> This also removes a corresponding compiler-warning.
>>
>> Which warning exactly?
> 
> On "normal" (defconfig) builds the warning does not show up because CONFIG_FRAME_POINTER is set.
> I've found the unused bp because CONFIG_FRAME_POINTER was not set in my configuration.
> 
>   CC      arch/um/kernel/sysrq.o
> arch/um/kernel/sysrq.c: In function ‘show_stack’:
> arch/um/kernel/sysrq.c:32:29: warning: unused variable ‘bp’ [-Wunused-variable]

Looks like my gcc need's an upgrade. :D

Thanks,
//richard
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WARNING: multiple messages have this Message-ID (diff)
From: Richard Weinberger <richard@nod.at>
To: Manfred Schlaegl <manfred.schlaegl@gmx.at>,
	Jeff Dike <jdike@addtoit.com>
Cc: Daniel Walter <dwalter@google.com>,
	Randy Dunlap <rdunlap@infradead.org>,
	user-mode-linux-devel@lists.sourceforge.net,
	user-mode-linux-user@lists.sourceforge.net,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] um: Remove unused bp stack-frame pointer
Date: Sat, 18 Oct 2014 17:19:28 +0200	[thread overview]
Message-ID: <54428500.6020304@nod.at> (raw)
In-Reply-To: <54428348.2050209@gmx.at>

Am 18.10.2014 um 17:12 schrieb Manfred Schlaegl:
> On 2014-10-18 16:42, Richard Weinberger wrote:
>> Am 18.10.2014 um 16:23 schrieb Manfred Schlaegl:
>>> The pointer to bp stack-frame is no longer used. Removed it.
>>
>> Good catch!
> Thank you.
> 
>>
>>> This also removes a corresponding compiler-warning.
>>
>> Which warning exactly?
> 
> On "normal" (defconfig) builds the warning does not show up because CONFIG_FRAME_POINTER is set.
> I've found the unused bp because CONFIG_FRAME_POINTER was not set in my configuration.
> 
>   CC      arch/um/kernel/sysrq.o
> arch/um/kernel/sysrq.c: In function ‘show_stack’:
> arch/um/kernel/sysrq.c:32:29: warning: unused variable ‘bp’ [-Wunused-variable]

Looks like my gcc need's an upgrade. :D

Thanks,
//richard

  reply	other threads:[~2014-10-18 15:19 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-18 14:23 [PATCH] um: Remove unused bp stack-frame pointer Manfred Schlaegl
2014-10-18 14:42 ` [uml-devel] " Richard Weinberger
2014-10-18 14:42   ` Richard Weinberger
2014-10-18 15:12   ` Manfred Schlaegl
2014-10-18 15:12     ` Manfred Schlaegl
2014-10-18 15:19     ` Richard Weinberger [this message]
2014-10-18 15:19       ` Richard Weinberger
2014-10-18 15:24       ` Manfred Schlaegl
2014-10-18 15:24         ` Manfred Schlaegl
2014-10-18 15:40         ` Richard Weinberger
2014-10-18 15:40           ` Richard Weinberger
2014-10-19 17:28           ` Manfred Schlaegl
2014-10-19 17:28             ` Manfred Schlaegl

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