linux-kernel - Re: [RFC PATCH 1/5] livepatch: ftrace: arm64: Add support for DYNAMIC_FTRACE_WITH

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Date:	Fri, 29 May 2015 16:01:33 +0800
From:	Li Bin <huawei.libin@...wei.com>
To:	Paul Bolle <pebolle@...cali.nl>
CC:	<rostedt@...dmis.org>, <mingo@...nel.org>, <jpoimboe@...hat.com>,
	<sjenning@...hat.com>, <jkosina@...e.cz>, <vojtech@...e.cz>,
	<catalin.marinas@....com>, <will.deacon@....com>,
	<masami.hiramatsu.pt@...achi.com>, <live-patching@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <lizefan@...wei.com>,
	<felix.yang@...wei.com>, <guohanjun@...wei.com>,
	<xiexiuqi@...wei.com>
Subject: Re: [RFC PATCH 1/5] livepatch: ftrace: arm64: Add support for DYNAMIC_FTRACE_WITH_REGS

On 2015/5/29 15:14, Paul Bolle wrote:
> On Thu, 2015-05-28 at 13:51 +0800, Li Bin wrote:
>> --- a/arch/arm64/Kconfig
>> +++ b/arch/arm64/Kconfig
> 
>>  	select HAVE_DYNAMIC_FTRACE
>> +	select HAVE_DYNAMIC_FTRACE_WITH_REGS if HAVE_DYNAMIC_FTRACE
> 
> What's the point of "if HAVE_DYNAMIC_FTRACE" here? That test should
> always evaluate to true, because HAVE_DYNAMIC_FTRACE is also selected.
> 

Ah, I'll modify it.
Thanks!
	Li Bin

> 
> Paul Bolle
> 
> 
> 
> 
> .
> 


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