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driver core: auxiliary bus: Introduce dev_is_auxiliary()

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Introduce dev_is_auxiliary() in analogy with dev_is_platform() to
facilitate subsequent changes.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Danilo Krummrich <dakr@kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://patch.msgid.link/5079467.GXAFRqVoOG@rafael.j.wysocki
This commit is contained in:
Rafael J. Wysocki
2026-03-13 13:53:03 +01:00
parent 6b3f2475a0
commit 97e6fabee5
2 changed files with 12 additions and 0 deletions
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10
drivers/base/auxiliary.c
View File

@@ -502,6 +502,16 @@ struct auxiliary_device *__devm_auxiliary_device_create(struct device *dev,
}
EXPORT_SYMBOL_GPL(__devm_auxiliary_device_create);
/**
* dev_is_auxiliary - check if the device is an auxiliary one
* @dev: device to check
*/
bool dev_is_auxiliary(struct device *dev)
{
return dev->bus == &auxiliary_bus_type;
}
EXPORT_SYMBOL_GPL(dev_is_auxiliary);
void __init auxiliary_bus_init(void)
{
WARN_ON(bus_register(&auxiliary_bus_type));

2
include/linux/auxiliary_bus.h
View File

@@ -271,6 +271,8 @@ struct auxiliary_device *__devm_auxiliary_device_create(struct device *dev,
__devm_auxiliary_device_create(dev, KBUILD_MODNAME, devname, \
platform_data, 0)
bool dev_is_auxiliary(struct device *dev);
/**
* module_auxiliary_driver() - Helper macro for registering an auxiliary driver
* @__auxiliary_driver: auxiliary driver struct