From nobody Mon Feb 9 09:22:59 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 06AEA3224; Fri, 24 Jan 2025 17:34:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737740048; cv=none; b=ZBdGtFKJj5Ga8+K5idt0Bg0ElhEECLaXYFyT1u8oeFzu42mVh45/DY1lBin/dPEMCaRSdI5bwsc3ss7mqVLTQV1FZRZpNJR0/lCeedcfPGOfDMdZVYin/2E1jeeCnA6pndRd+f0iW5lPMzSabhRhmdq3n+uNOK9giP/gRgnt5TY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737740048; c=relaxed/simple; bh=Wfb3nCJHrFZ/ER3+NaAKiTIh4tK6aoLhRwbmFqRcZq4=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:Cc; b=fomik6qGZAx+SJoZmHata78Uo9CDbmxTvPb1nnxF4qH4mIfInuzdOvxXwAUnggCc4FO81Yf/8cwtHY1lk5CjfcNqyQ3t5Jphrcq8PHyYxJ4rsyU6/EnsK5HwizDs9Ff8gczZlMZ4mMgiXTmr8fYJzxb7TKYbVaTJtHxx8BPTRjQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=LVDoYpKz; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="LVDoYpKz" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A54CDC4CED2; Fri, 24 Jan 2025 17:34:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1737740047; bh=Wfb3nCJHrFZ/ER3+NaAKiTIh4tK6aoLhRwbmFqRcZq4=; h=From:Date:Subject:To:Cc:From; b=LVDoYpKzXIJX9ChjvY3/s4fCfrmROugPfMq71vG8hIdFhyBgKuqH0zexCVZzWrDth c+1nh6MrS40V6dh1kInB6kwMnlgvKr7y7SeHTEoqp8L0ZbrzeJFdxLgwIrm26X3qCh QtAGmGSg+XYr57rODjCCTgKoaGURk3N0cnT4HAWZpE/MKKHCzsaBp9J/fcpiqB5PYX /7Nq0a2VtiHezyZw0Vi76DOQo4PeZPqFuJ5SbvYBsDP/4ko45/gvegx0wZXy/CFrWS xZUpSbRXNAEu6YIgEfn0f1M4IG/qYtWN/7Y1XB5ju49mFCV1zISY5hnBUJdcI9J6AB jr1WZx+vwjhNg== From: Mark Brown Date: Fri, 24 Jan 2025 17:33:22 +0000 Subject: [PATCH] arm64/gcs: Fix documentation for HWCAP Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250124-arm64-gcs-hwcap-doc-v1-1-fa9368b01ca6@kernel.org> X-B4-Tracking: v=1; b=H4sIAOHOk2cC/x3MQQqAIBBA0avErBtQ0YKuEi1Ep5pFGg5UIN09a fkW/1cQKkwCU1eh0MXCOTXovoOw+7QRcmwGo4xT2lj05RgsbkFwv4M/MeaAbhyiW61WZvTQyrP Qys9/nZf3/QChb8zqZQAAAA== X-Change-ID: 20250124-arm64-gcs-hwcap-doc-576d5f41027a To: Catalin Marinas , Will Deacon , Jonathan Corbet , Thiago Jung Bauermann , Yury Khrustalev Cc: linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, David Spickett , Mark Brown X-Mailer: b4 0.15-dev-1b0d6 X-Developer-Signature: v=1; a=openpgp-sha256; l=1133; i=broonie@kernel.org; h=from:subject:message-id; bh=Wfb3nCJHrFZ/ER3+NaAKiTIh4tK6aoLhRwbmFqRcZq4=; b=owEBbQGS/pANAwAKASTWi3JdVIfQAcsmYgBnk88M8xVJBNItAkMMTYAz53ygbsLKSqUxNKWD5HxM wskB0qSJATMEAAEKAB0WIQSt5miqZ1cYtZ/in+ok1otyXVSH0AUCZ5PPDAAKCRAk1otyXVSH0Ic5B/ 9JtV6z5AGvOTKCCbgK/5m7AhexBmNehPccFzXR4jInlgXQ4UcR052/3PXNHGSOgye6MYfwAWWLQe0h O3I6rkdWLHv9crGWKeN3wOfT8/DnbCoT7e8Dr8TIfpr0F2ooPDS3yBOZpNYR/HCjOlmZLlIoQXO1VZ IggAi1O3wKVSRFa9MRGoRiE+zD3CEW+Wbi/piOiYqCdT6YLwR1sfAq3eOGj/l/VnTOu10Cc4QLfYmC xXheoRbeovwv1gIFwyMqn6A1PV942WgmH/D6gdQc91f+eOvQkDJuBGP69Q/VN9Bsl4L2PGykWcy9qz MnDSJ9umh6TDdrhwbKHHU+uluossqb X-Developer-Key: i=broonie@kernel.org; a=openpgp; fpr=3F2568AAC26998F9E813A1C5C3F436CA30F5D8EB In one of the renumberings of the GCS hwcap a stray reference to HWCAP2 was left, fix it. Reported-by: David Spickett Fixes: 7058bf87cd59 ("arm64/gcs: Document the ABI for Guarded Control Stack= s") Signed-off-by: Mark Brown --- Documentation/arch/arm64/gcs.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/arch/arm64/gcs.rst b/Documentation/arch/arm64/gc= s.rst index 1f65a3193e7765dce9bfd6ad88b9fbd6a225ed86..226c0b008456f28c57c2221f45e= ed7e99610be46 100644 --- a/Documentation/arch/arm64/gcs.rst +++ b/Documentation/arch/arm64/gcs.rst @@ -37,7 +37,7 @@ intended to be exhaustive. shadow stacks rather than GCS. =20 * Support for GCS is reported to userspace via HWCAP_GCS in the aux vector - AT_HWCAP2 entry. + AT_HWCAP entry. =20 * GCS is enabled per thread. While there is support for disabling GCS at runtime this should be done with great care. --- base-commit: ffd294d346d185b70e28b1a28abe367bbfe53c04 change-id: 20250124-arm64-gcs-hwcap-doc-576d5f41027a Best regards, --=20 Mark Brown