linux-kernel - Re: [PATCH v4 3/8] arm64: uaccess: Move existing GCS accessors definitions to gcs.h

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Message-ID: <aICu__TsqPRXJU7m@arm.com>
Date: Wed, 23 Jul 2025 10:44:31 +0100
From: Catalin Marinas <catalin.marinas@....com>
To: Jeremy Linton <jeremy.linton@....com>
Cc: linux-trace-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
	mhiramat@...nel.org, oleg@...hat.com, peterz@...radead.org,
	acme@...nel.org, namhyung@...nel.org, mark.rutland@....com,
	alexander.shishkin@...ux.intel.com, jolsa@...nel.org,
	irogers@...gle.com, adrian.hunter@...el.com,
	kan.liang@...ux.intel.com, thiago.bauermann@...aro.org,
	broonie@...nel.org, yury.khrustalev@....com,
	kristina.martsenko@....com, liaochang1@...wei.com, will@...nel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 3/8] arm64: uaccess: Move existing GCS accessors
 definitions to gcs.h

On Fri, Jul 18, 2025 at 11:37:35PM -0500, Jeremy Linton wrote:
> We are going to add some additional GCS access helpers to gcs.h in
> order to avoid some forward reference problems with uaccess.
> 
> In preparation for that, lets move the existing gcssttr() and
> put_user_gcs() routines into gcs.h where it makes sense to keep all
> the accessors together. Further, the code which uses them already
> includes gcs.h and there is an existing CONFIG_ARM64_GCS check we can
> reuse.
> 
> Signed-off-by: Jeremy Linton <jeremy.linton@....com>

Reviewed-by: Catalin Marinas <catalin.marinas@....com>