linux-kernel - Re: [PATCH 4/5] x86: ret_from_fork

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Message-ID: <aa79d98a0811270327i28f89148w3fa0f7030ad8cd54@mail.gmail.com>
Date:	Thu, 27 Nov 2008 14:27:12 +0300
From:	"Cyrill Gorcunov" <gorcunov@...il.com>
To:	"Alexander van Heukelum" <heukelum@...tmail.fm>
Cc:	"Ingo Molnar" <mingo@...e.hu>,
	"Thomas Gleixner" <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/5] x86: ret_from_fork - add CFI proc annotation

On Thu, Nov 27, 2008 at 1:15 PM, Alexander van Heukelum
<heukelum@...tmail.fm> wrote:
>
> On Wed, 26 Nov 2008 22:17:03 +0300, gorcunov@...il.com said:
>> From: Cyrill Gorcunov <gorcunov@...il.com>
>>
>> ret_from_fork is definitly procedure so mark it as that.
>>
>> Signed-off-by: Cyrill Gorcunov <gorcunov@...il.com>
>> ---
>>  arch/x86/kernel/entry_64.S |    1 +
>>  1 files changed, 1 insertions(+), 0 deletions(-)
>>
>> diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
>> index c409f73..a21be86 100644
>> --- a/arch/x86/kernel/entry_64.S
>> +++ b/arch/x86/kernel/entry_64.S
>> @@ -370,6 +370,7 @@ END(save_paranoid)
>>   */
>>  /* rdi:      prev */
>>  ENTRY(ret_from_fork)
>> +     CFI_STARTPROC
>>       DEFAULT_FRAME
>>       push kernel_eflags(%rip)
>>       CFI_ADJUST_CFA_OFFSET 8
>
> This is not needed/wanted. DEFAULT_FRAME includes "CFI_STARTPROC simple"
> already.
>
> Alexander
>
>> 1.6.0.4.603.gbc9c0
>>
> --
>  Alexander van Heukelum
>  heukelum@...tmail.fm
>
> --
> http://www.fastmail.fm - The professional email service
>
>

Indeed, thanks (such an indirect and nested definition sometime confusing)
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