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
| ||
|
Date: Tue, 3 Dec 2013 12:34:54 +0000 From: Kim Phillips <kim.phillips@...aro.org> To: linux-kernel@...r.kernel.org, Greg Kroah-Hartman <gregkh@...uxfoundation.org> Cc: kvm@...r.kernel.org, scottwood@...escale.com, R65777@...escale.com, B07421@...escale.com, B08248@...escale.com, christoffer.dall@...aro.org, alex.williamson@...hat.com, a.motakis@...tualopensystems.com, agraf@...e.de, B16395@...escale.com Subject: [REPOST][PATCH 2/2] driver core: platform: allow platform drivers to bind to any device Platform drivers such as the vfio-platform "meta-" driver [1] should be allowed to specify that they can bind to any device, much like PCI drivers can with PCI_ANY_ID. Currently, binding platform drivers to devices depends on: - a string match in the device node's compatible entry (OF) - a string match in the ACPI id list (ACPI) - a string match in the id_table (platform data) - a string match on the driver name (fall-back) none of which allow for the notion of "match any." This patch adds the notion by adding a "match any device" boolean to struct platform_driver, for drivers to be able to set and thus not cause platform_match() to fail when a bind is requested. [1] http://www.spinics.net/lists/kvm/msg96701.html Signed-off-by: Kim Phillips <kim.phillips@...aro.org> --- rebased onto 3.13-rc2, and reposted from first submission which received no comments: https://lkml.org/lkml/2013/10/11/48 drivers/base/platform.c | 4 ++++ include/linux/platform_device.h | 1 + 2 files changed, 5 insertions(+) diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 3a94b79..78a5b62 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -736,6 +736,10 @@ static int platform_match(struct device *dev, struct device_driver *drv) struct platform_device *pdev = to_platform_device(dev); struct platform_driver *pdrv = to_platform_driver(drv); + /* the driver matches any device */ + if (pdrv->match_any_dev) + return 1; + /* Attempt an OF style match first */ if (of_driver_match_device(dev, drv)) return 1; diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h index 16f6654..55e76b1 100644 --- a/include/linux/platform_device.h +++ b/include/linux/platform_device.h @@ -179,6 +179,7 @@ struct platform_driver { struct device_driver driver; const struct platform_device_id *id_table; bool prevent_deferred_probe; + bool match_any_dev; }; #define to_platform_driver(drv) (container_of((drv), struct platform_driver, \ -- 1.8.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists