linux-kernel - Re: [PATCH 1/1] Remove an extra operation: The ESR has been stored into x1, and should be directly pass to do_sp_pc

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Message-Id: <BC9ADAC0-BD35-4A54-AEF2-CF4F9520D04A@arm.com>
Date:	Thu, 12 Jun 2014 22:16:09 +0100
From:	Catalin Marinas <catalin.marinas@....com>
To:	Andy Hsu <andy.jhshiu@...il.com>
Cc:	Will Deacon <Will.Deacon@....com>, Mark Brown <broonie@...aro.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linaro-kernel@...ts.linaro.org" <linaro-kernel@...ts.linaro.org>
Subject: Re: [PATCH 1/1] Remove an extra operation: The ESR has been stored into x1, and should be directly pass to do_sp_pc_abort function

On 12 Jun 2014, at 16:32, Andy Hsu <andy.jhshiu@...il.com> wrote:
> Signed-off-by: Andy Hsu <andy.jhshiu@...il.com>
> ---
> arch/arm64/kernel/entry.S |    1 -
> 1 files changed, 0 insertions(+), 1 deletions(-)
> 
> diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
> index fa78916..56ef569 100644
> --- a/arch/arm64/kernel/entry.S
> +++ b/arch/arm64/kernel/entry.S
> @@ -275,7 +275,6 @@ el1_sp_pc:
> 	 * Stack or PC alignment exception handling
> 	 */
> 	mrs	x0, far_el1
> -	mov	x1, x25
> 	mov	x2, sp
> 	b	do_sp_pc_abort
> el1_undef:

I got it already via a different channel but thanks anyway.

Catalin
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