linux-kernel - Re: [PATCH] x86: kill ptregscall

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Date:	Fri, 4 Jul 2014 12:48:44 -0700
From:	Andy Lutomirski <luto@...capital.net>
To:	Oleg Nesterov <oleg@...hat.com>
Cc:	"H. Peter Anvin" <hpa@...or.com>, Andi Kleen <andi@...stfloor.org>,
	Tejun Heo <tj@...nel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] x86: kill ptregscall_common

On Fri, Jul 4, 2014 at 11:04 AM, Oleg Nesterov <oleg@...hat.com> wrote:
> It has no users since commit b3af11afe06a "x86: get rid of pt_regs
> argument of iopl(2)".

Looks good to me.

--Andy

>
> Signed-off-by: Oleg Nesterov <oleg@...hat.com>
> ---
>  arch/x86/kernel/entry_64.S |   13 -------------
>  1 files changed, 0 insertions(+), 13 deletions(-)
>
> diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
> index b25ca96..fa64128 100644
> --- a/arch/x86/kernel/entry_64.S
> +++ b/arch/x86/kernel/entry_64.S
> @@ -640,19 +640,6 @@ END(\label)
>         FORK_LIKE  vfork
>         FIXED_FRAME stub_iopl, sys_iopl
>
> -ENTRY(ptregscall_common)
> -       DEFAULT_FRAME 1 8       /* offset 8: return address */
> -       RESTORE_TOP_OF_STACK %r11, 8
> -       movq_cfi_restore R15+8, r15
> -       movq_cfi_restore R14+8, r14
> -       movq_cfi_restore R13+8, r13
> -       movq_cfi_restore R12+8, r12
> -       movq_cfi_restore RBP+8, rbp
> -       movq_cfi_restore RBX+8, rbx
> -       ret $REST_SKIP          /* pop extended registers */
> -       CFI_ENDPROC
> -END(ptregscall_common)
> -
>  ENTRY(stub_execve)
>         CFI_STARTPROC
>         addq $8, %rsp
> --
> 1.5.5.1
>
>



-- 
Andy Lutomirski
AMA Capital Management, LLC
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