From: Catalin Marinas <catalin.marinas@arm.com>
To: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] ARM: fix co-processor register typo
Date: Wed, 9 Mar 2022 19:10:58 +0000 [thread overview]
Message-ID: <Yij7wjXvJh+jMIWr@arm.com> (raw)
In-Reply-To: <E1nS1fu-00GcNN-24@rmk-PC.armlinux.org.uk>
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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prev parent reply other threads:[~2022-03-09 19:12 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-09 19:08 [PATCH] ARM: fix co-processor register typo Russell King (Oracle)
2022-03-09 19:10 ` Catalin Marinas [this message]
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