From patchwork Mon Dec 2 19:02:56 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Thomas_Wei=C3=9Fschuh?= X-Patchwork-Id: 846995 Received: from todd.t-8ch.de (todd.t-8ch.de [159.69.126.157]) (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 6646A1DE3D4; Mon, 2 Dec 2024 19:03:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=159.69.126.157 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733166181; cv=none; b=OYCb+rq3O+5JfEQdrlyWv2DhMZ3GAEyTnTOoWz9KKleknJvVGMUC1QGqe3O/Xz0j6xgIXeDAiyiAdvFKLXcunz3Cgzq4S1Mzglcw7V9iQb5B7OvR2k9aS7BYmvWdfcAMjvyzIWj2xfsnsdZXANN08SRmOvRxk3B9cI7/WHV3KSs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733166181; c=relaxed/simple; bh=+lQgrVXGmqskGkJ0EZVsQvVGvqiHQqZh0rqrRdQ2bXQ=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=Gd1w0clvWDnXacEAO80ntm8sLrrXTiX38KqZFAqmhwBja9MSLnONIsFZ9mXg6/f0dCoh4hJHObz8E7IZFexw2jQKDE+1C+xerJLgk+pCmWQ7Lf40MHddmuIEwZQ01TrLTGibScSwZ5d3DVxCiPMrmz0UM/pQUEQ9hUbgfV9OweI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=weissschuh.net; spf=pass smtp.mailfrom=weissschuh.net; dkim=pass (1024-bit key) header.d=weissschuh.net header.i=@weissschuh.net header.b=ORIs5AhQ; arc=none smtp.client-ip=159.69.126.157 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=weissschuh.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=weissschuh.net Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=weissschuh.net header.i=@weissschuh.net header.b="ORIs5AhQ" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=weissschuh.net; s=mail; t=1733166178; bh=+lQgrVXGmqskGkJ0EZVsQvVGvqiHQqZh0rqrRdQ2bXQ=; h=From:Subject:Date:To:Cc:From; b=ORIs5AhQzO9Vc6vUE/7EUlp6YcbuwevsJZU1ECLwEGIPQThg1QS4Mw0kFWdZXLXRl 0/yjxj/lbqWBle7vbJ94owbJwmPrDDB9bde0Igl0qeg2iGpq891MyRQCJDIeFeF85C YDhs5JxyrhN/84ipc2Kajg597L6mLvU0HMZBuZyw= From: =?utf-8?q?Thomas_Wei=C3=9Fschuh?= Subject: [PATCH 0/4] PCI: Constify 'struct bin_attribute' Date: Mon, 02 Dec 2024 20:02:56 +0100 Message-Id: <20241202-sysfs-const-bin_attr-pci-v1-0-c32360f495a7@weissschuh.net> Precedence: bulk X-Mailing-List: linux-acpi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-B4-Tracking: v=1; b=H4sIAGAETmcC/x3MMQqAMAxA0atIZgM2VBGvIiK1Rs1SpSmiiHe3O L7h/weUo7BCVzwQ+RSVPWSYsgC/ubAyypwNVJE1VBnUWxdFvwdNOEkYXUoRDy84MVmq2bi2biD nR+RFrn/dD+/7ARGkquZqAAAA X-Change-ID: 20241201-sysfs-const-bin_attr-pci-be2425e1a856 To: Bjorn Helgaas , Logan Gunthorpe , "Rafael J. Wysocki" , Len Brown Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, =?utf-8?q?Thomas_Wei=C3=9Fschuh?= X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1733166177; l=1067; i=linux@weissschuh.net; s=20221212; h=from:subject:message-id; bh=+lQgrVXGmqskGkJ0EZVsQvVGvqiHQqZh0rqrRdQ2bXQ=; b=3cSuvdzQxw91cAQKKffNXHOj12Mh5lJT+gcQuAZXR2P819DWMthaAjgCc1bhmmGoBYdRtNELF /6ve7/vm8uFDWPNLdG8GBI6FXxIbIOeYgb3x0NvNpp02XYMafUaVJll X-Developer-Key: i=linux@weissschuh.net; a=ed25519; pk=KcycQgFPX2wGR5azS7RhpBqedglOZVgRPfdFSPB1LNw= The sysfs core now allows instances of 'struct bin_attribute' to be moved into read-only memory. Make use of that to protect them against accidental or malicious modifications. The usage of read_new/write_new/bin_attrs_new is a transition mechanism and will be reverted after the transition is complete. Signed-off-by: Thomas Weißschuh --- Thomas Weißschuh (4): PCI/sysfs: Constify 'struct bin_attribute' PCI/VPD: Constify 'struct bin_attribute' PCI/P2PDMA: Constify 'struct bin_attribute' PCI/ACPI: Constify 'struct bin_attribute' drivers/pci/hotplug/acpiphp_ibm.c | 6 +++--- drivers/pci/p2pdma.c | 6 +++--- drivers/pci/pci-sysfs.c | 42 +++++++++++++++++++-------------------- drivers/pci/vpd.c | 14 ++++++------- 4 files changed, 34 insertions(+), 34 deletions(-) --- base-commit: e70140ba0d2b1a30467d4af6bcfe761327b9ec95 change-id: 20241201-sysfs-const-bin_attr-pci-be2425e1a856 Best regards,