From: Will Deacon <will@kernel.org>
To: Peter Collingbourne <pcc@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
Russell King <linux@armlinux.org.uk>,
linux-arm-kernel@lists.infradead.org, stable@vger.kernel.org
Subject: Re: [PATCH] arm: fix inline asm in load_unaligned_zeropad()
Date: Thu, 1 Apr 2021 18:16:55 +0100 [thread overview]
Message-ID: <20210401171655.GD9447@willie-the-truck> (raw)
In-Reply-To: <20210401165543.3957816-1-pcc@google.com>
On Thu, Apr 01, 2021 at 09:55:43AM -0700, Peter Collingbourne wrote:
> The inline asm's addr operand is marked as input-only, however in
> the case where an exception is taken it may be modified by the BIC
> instruction on the exception path. Fix the problem by using a temporary
> register as the destination register for the BIC instruction.
>
> Signed-off-by: Peter Collingbourne <pcc@google.com>
> Cc: stable@vger.kernel.org
> Link: https://linux-review.googlesource.com/id/I0f9ad1682821f874fb9b47e1279721943b2e5325
> ---
> arch/arm/include/asm/word-at-a-time.h | 10 +++++-----
> 1 file changed, 5 insertions(+), 5 deletions(-)
Acked-by: Will Deacon <will@kernel.org>
Please can you put this into Russell's patch system?
Thanks,
Will
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prev parent reply other threads:[~2021-04-01 17:18 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-01 16:55 [PATCH] arm: fix inline asm in load_unaligned_zeropad() Peter Collingbourne
2021-04-01 17:16 ` Will Deacon [this message]
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