* [PATCH] ARM: fix co-processor register typo
@ 2022-03-09 19:08 Russell King (Oracle)
2022-03-09 19:10 ` Catalin Marinas
0 siblings, 1 reply; 2+ messages in thread
From: Russell King (Oracle) @ 2022-03-09 19:08 UTC (permalink / raw)
To: Linus Torvalds; +Cc: Catalin Marinas, linux-arm-kernel
In the recent Spectre BHB patches, there was a typo that is only
exposed in certain configurations: mcr p15,0,XX,c7,r5,4 should have
been mcr p15,0,XX,c7,c5,4
Reported-by: kernel test robot <lkp@intel.com>
Fixes: b9baf5c8c5c3 ("ARM: Spectre-BHB workaround")
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
---
arch/arm/include/asm/assembler.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h
index cc8851e09f0d..34fe8d2dd5d1 100644
--- a/arch/arm/include/asm/assembler.h
+++ b/arch/arm/include/asm/assembler.h
@@ -117,7 +117,7 @@ THUMB( fpreg .req r7 )
.endm
.macro isb, args
- mcr p15, 0, r0, c7, r5, 4
+ mcr p15, 0, r0, c7, c5, 4
.endm
#endif
--
2.30.2
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^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] ARM: fix co-processor register typo
2022-03-09 19:08 [PATCH] ARM: fix co-processor register typo Russell King (Oracle)
@ 2022-03-09 19:10 ` Catalin Marinas
0 siblings, 0 replies; 2+ messages in thread
From: Catalin Marinas @ 2022-03-09 19:10 UTC (permalink / raw)
To: Russell King (Oracle); +Cc: Linus Torvalds, linux-arm-kernel
On Wed, Mar 09, 2022 at 07:08:42PM +0000, Russell King wrote:
> In the recent Spectre BHB patches, there was a typo that is only
> exposed in certain configurations: mcr p15,0,XX,c7,r5,4 should have
> been mcr p15,0,XX,c7,c5,4
>
> Reported-by: kernel test robot <lkp@intel.com>
> Fixes: b9baf5c8c5c3 ("ARM: Spectre-BHB workaround")
> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
> ---
> arch/arm/include/asm/assembler.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h
> index cc8851e09f0d..34fe8d2dd5d1 100644
> --- a/arch/arm/include/asm/assembler.h
> +++ b/arch/arm/include/asm/assembler.h
> @@ -117,7 +117,7 @@ THUMB( fpreg .req r7 )
> .endm
>
> .macro isb, args
> - mcr p15, 0, r0, c7, r5, 4
> + mcr p15, 0, r0, c7, c5, 4
> .endm
> #endif
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
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