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Date: Mon, 2 Sep 2024 19:56:32 +0100
From: Catalin Marinas <catalin.marinas@arm.com>
To: Mark Brown <broonie@kernel.org>
Cc: Will Deacon <will@kernel.org>, Jonathan Corbet <corbet@lwn.net>,
	Andrew Morton <akpm@linux-foundation.org>,
	Marc Zyngier <maz@kernel.org>,
	Oliver Upton <oliver.upton@linux.dev>,
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	Suzuki K Poulose <suzuki.poulose@arm.com>,
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	Eric Biederman <ebiederm@xmission.com>,
	Shuah Khan <shuah@kernel.org>,
	"Rick P. Edgecombe" <rick.p.edgecombe@intel.com>,
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Subject: Re: [PATCH v12 26/39] arm64/ptrace: Expose GCS via ptrace and core
 files
Message-ID: <ZtYKYMWjApRxFO_-@arm.com>
References: <20240829-arm64-gcs-v12-0-42fec947436a@kernel.org>
 <20240829-arm64-gcs-v12-26-42fec947436a@kernel.org>
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In-Reply-To: <20240829-arm64-gcs-v12-26-42fec947436a@kernel.org>

On Thu, Aug 29, 2024 at 12:27:42AM +0100, Mark Brown wrote:
> +static int gcs_get(struct task_struct *target,
> +		   const struct user_regset *regset,
> +		   struct membuf to)
> +{
> +	struct user_gcs user_gcs;
> +
> +	if (target == current)
> +		gcs_preserve_current_state();

What's the use-case where target == current and do we need something
similar for gcs_set()?

-- 
Catalin