From: Catalin Marinas <catalin.marinas@arm.com>
To: Mark Brown <broonie@kernel.org>
Cc: Will Deacon <will@kernel.org>, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] arm64/mte: Clarify mode reported by PR_GET_TAGGED_ADDR_CTRL
Date: Tue, 1 Feb 2022 18:31:04 +0000 [thread overview]
Message-ID: <Yfl8aGc1QtIOJyxt@arm.com> (raw)
In-Reply-To: <20220127190324.660405-1-broonie@kernel.org>
On Thu, Jan 27, 2022 at 07:03:23PM +0000, Mark Brown wrote:
> With the current wording readers might infer that PR_GET_TAGGED_ADDR_CTRL
> will report the mode currently active in the thread however this is not the
> actual behaviour, instead all modes currently selected by the process will
> be reported with the mode used depending on the combination of the
> requested modes and the default set for the current CPU. This has been the
> case since 433c38f40f6a81 ("arm64: mte: change ASYNC and SYNC TCF settings
> into bitfields"), before that we did not allow more than one mode to be
> requested simultaneously.
>
> Update the documentation to more clearly reflect current behaviour.
>
> Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
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next prev parent reply other threads:[~2022-02-01 18:32 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-27 19:03 [PATCH] arm64/mte: Clarify mode reported by PR_GET_TAGGED_ADDR_CTRL Mark Brown
2022-02-01 18:31 ` Catalin Marinas [this message]
2022-02-15 23:18 ` Will Deacon
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