linux-kernel - [PATCH v4 02/10] driver core: add irq_get_affinity callback device

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20241113-refactor-blk-affinity-helpers-v4-2-dd3baa1e267f@kernel.org>
Date: Wed, 13 Nov 2024 15:26:16 +0100
From: Daniel Wagner <wagi@...nel.org>
To: Jens Axboe <axboe@...nel.dk>, Bjorn Helgaas <bhelgaas@...gle.com>, 
 "Michael S. Tsirkin" <mst@...hat.com>, Jason Wang <jasowang@...hat.com>, 
 Xuan Zhuo <xuanzhuo@...ux.alibaba.com>, 
 Eugenio Pérez <eperezma@...hat.com>, 
 "Martin K. Petersen" <martin.petersen@...cle.com>, 
 Keith Busch <kbusch@...nel.org>, Christoph Hellwig <hch@....de>, 
 Sagi Grimberg <sagi@...mberg.me>, John Garry <john.g.garry@...cle.com>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Hannes Reinecke <hare@...e.de>
Cc: linux-block@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-pci@...r.kernel.org, virtualization@...ts.linux.dev, 
 linux-scsi@...r.kernel.org, megaraidlinux.pdl@...adcom.com, 
 mpi3mr-linuxdrv.pdl@...adcom.com, MPT-FusionLinux.pdl@...adcom.com, 
 storagedev@...rochip.com, linux-nvme@...ts.infradead.org, 
 Daniel Wagner <wagi@...nel.org>
Subject: [PATCH v4 02/10] driver core: add irq_get_affinity callback
 device_driver

Introducing a callback in struct device_driver so that a device driver
can hook up the getters directly. This approach avoids exposing random
getters in drivers.

Signed-off-by: Daniel Wagner <wagi@...nel.org>
---
 include/linux/device/driver.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/linux/device/driver.h b/include/linux/device/driver.h
index 5c04b8e3833b995f9fd4d65b8732b3dfce2eba7e..0d1aee423f6c076ae102bdd0536233c259947fac 100644
--- a/include/linux/device/driver.h
+++ b/include/linux/device/driver.h
@@ -74,6 +74,7 @@ enum probe_type {
  * @suspend:	Called to put the device to sleep mode. Usually to a
  *		low power state.
  * @resume:	Called to bring a device from sleep mode.
+ * @irq_get_affinity:	Get IRQ affinity mask for the device.
  * @groups:	Default attributes that get created by the driver core
  *		automatically.
  * @dev_groups:	Additional attributes attached to device instance once
@@ -112,6 +113,8 @@ struct device_driver {
 	void (*shutdown) (struct device *dev);
 	int (*suspend) (struct device *dev, pm_message_t state);
 	int (*resume) (struct device *dev);
+	const struct cpumask *(*irq_get_affinity)(struct device *dev,
+			unsigned int irq_vec);
 	const struct attribute_group **groups;
 	const struct attribute_group **dev_groups;

-- 
2.47.0