diff options
| author |   Suzuki K Poulose <suzuki.poulose@arm.com> | 2019-07-23 23:18:37 +0100 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-07-30 13:07:42 +0200 |
| commit | 6bf85ba9e55f659ddc0747bf1bb504ec6d15f525 (patch) | |
| tree | 4b240fa6a535a1e9c045152afe9276aa9266622a /include/linux/device.h | |
| parent | drivers: Introduce device lookup variants by ACPI_COMPANION device (diff) | |
| download | linux-dev-6bf85ba9e55f659ddc0747bf1bb504ec6d15f525.tar.xz linux-dev-6bf85ba9e55f659ddc0747bf1bb504ec6d15f525.zip | |
drivers: Add generic helper to match any device
Add a generic helper to match any/all devices. Using this
introduce new wrappers {bus/driver/class}_find_next_device().
Cc: Elie Morisse <syniurge@gmail.com>
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: Nehal Shah <nehal-bakulchandra.shah@amd.com>
Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Cc: Shyam Sundar S K <shyam-sundar.s-k@amd.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com> # PCI
Link: https://lore.kernel.org/r/20190723221838.12024-7-suzuki.poulose@arm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/device.h')
| -rw-r--r-- | include/linux/device.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/linux/device.h b/include/linux/device.h index 7514ef3d3f1a..8ae3f4b47293 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -169,6 +169,7 @@ int device_match_of_node(struct device *dev, const void *np); int device_match_fwnode(struct device *dev, const void *fwnode); int device_match_devt(struct device *dev, const void *pdevt); int device_match_acpi_dev(struct device *dev, const void *adev); +int device_match_any(struct device *dev, const void *unused); int bus_for_each_dev(struct bus_type *bus, struct device *start, void *data, int (*fn)(struct device *dev, void *data)); @@ -225,6 +226,16 @@ static inline struct device *bus_find_device_by_devt(struct bus_type *bus, return bus_find_device(bus, NULL, &devt, device_match_devt); } +/** + * bus_find_next_device - Find the next device after a given device in a + * given bus. + */ +static inline struct device * +bus_find_next_device(struct bus_type *bus,struct device *cur) +{ + return bus_find_device(bus, cur, NULL, device_match_any); +} + #ifdef CONFIG_ACPI struct acpi_device; @@ -465,6 +476,12 @@ static inline struct device *driver_find_device_by_devt(struct device_driver *dr return driver_find_device(drv, NULL, &devt, device_match_devt); } +static inline struct device *driver_find_next_device(struct device_driver *drv, + struct device *start) +{ + return driver_find_device(drv, start, NULL, device_match_any); +} + #ifdef CONFIG_ACPI /** * driver_find_device_by_acpi_dev : device iterator for locating a particular |