lkml.org 
[lkml]   [2019]   [Jul]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH] ARM: check stmfd instruction using right shift
Gentle ping

probably this patch was missed or entered into spam?

On Mon, 22 Jul 2019 at 15:14, Chunyan Zhang <zhang.lyra@gmail.com> wrote:
>
> From: Lvqiang Huang <Lvqiang.Huang@unisoc.com>
>
> In the commit ef41b5c92498 ("ARM: make kernel oops easier to read"),
> - .word 0xe92d0000 >> 10 @ stmfd sp!, {}
> + .word 0xe92d0000 >> 11 @ stmfd sp!, {}
> then the shift need to change to 11.
>
> Fixes: ef41b5c92498 ("ARM: make kernel oops easier to read")
> Signed-off-by: Lvqiang Huang <Lvqiang.Huang@unisoc.com>
> Signed-off-by: Chunyan Zhang <zhang.lyra@gmail.com>
> ---
> arch/arm/lib/backtrace.S | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm/lib/backtrace.S b/arch/arm/lib/backtrace.S
> index 7d7952e..926851b 100644
> --- a/arch/arm/lib/backtrace.S
> +++ b/arch/arm/lib/backtrace.S
> @@ -70,7 +70,7 @@ for_each_frame: tst frame, mask @ Check for address exceptions
>
> 1003: ldr r2, [sv_pc, #-4] @ if stmfd sp!, {args} exists,
> ldr r3, .Ldsi+4 @ adjust saved 'pc' back one
> - teq r3, r2, lsr #10 @ instruction
> + teq r3, r2, lsr #11 @ instruction
> subne r0, sv_pc, #4 @ allow for mov
> subeq r0, sv_pc, #8 @ allow for mov + stmia
>
> --
> 1.7.9.5
>

\
 
 \ /
  Last update: 2019-07-30 09:19    [W:0.033 / U:0.484 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site