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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-01-11 12:23:31 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-01-18 11:00:48 +0300
commited9f918174cb35ba51d2fc86a613305dd8bc4cfe (patch)
treea0a3fb21add95b53e1921168f758068aa0cd0c6c /drivers/base/dd.c
parent504450d05c545a839b22542c72ddc388740462ac (diff)
downloadlinux-ed9f918174cb35ba51d2fc86a613305dd8bc4cfe.tar.xz
driver core: bus: move bus notifier logic into bus.c
The logic to touch the bus notifier was open-coded in numberous places in the driver core. Clean that up by creating a local bus_notify() function and have everyone call this function instead, making the reading of the caller code simpler and easier to maintain over time. Reviewed-by: Rafael J. Wysocki <rafael@kernel.org> Link: https://lore.kernel.org/r/20230111092331.3946745-2-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/base/dd.c')
-rw-r--r--drivers/base/dd.c28
1 files changed, 7 insertions, 21 deletions
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index 69daf9d414eb..817ef27a78f7 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -411,10 +411,7 @@ static void driver_bound(struct device *dev)
driver_deferred_probe_del(dev);
driver_deferred_probe_trigger();
- if (dev->bus)
- blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
- BUS_NOTIFY_BOUND_DRIVER, dev);
-
+ bus_notify(dev, BUS_NOTIFY_BOUND_DRIVER);
kobject_uevent(&dev->kobj, KOBJ_BIND);
}
@@ -433,9 +430,7 @@ static int driver_sysfs_add(struct device *dev)
{
int ret;
- if (dev->bus)
- blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
- BUS_NOTIFY_BIND_DRIVER, dev);
+ bus_notify(dev, BUS_NOTIFY_BIND_DRIVER);
ret = sysfs_create_link(&dev->driver->p->kobj, &dev->kobj,
kobject_name(&dev->kobj));
@@ -500,9 +495,8 @@ int device_bind_driver(struct device *dev)
device_links_force_bind(dev);
driver_bound(dev);
}
- else if (dev->bus)
- blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
- BUS_NOTIFY_DRIVER_NOT_BOUND, dev);
+ else
+ bus_notify(dev, BUS_NOTIFY_DRIVER_NOT_BOUND);
return ret;
}
EXPORT_SYMBOL_GPL(device_bind_driver);
@@ -693,9 +687,7 @@ dev_groups_failed:
probe_failed:
driver_sysfs_remove(dev);
sysfs_failed:
- if (dev->bus)
- blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
- BUS_NOTIFY_DRIVER_NOT_BOUND, dev);
+ bus_notify(dev, BUS_NOTIFY_DRIVER_NOT_BOUND);
if (dev->bus && dev->bus->dma_cleanup)
dev->bus->dma_cleanup(dev);
pinctrl_bind_failed:
@@ -1241,10 +1233,7 @@ static void __device_release_driver(struct device *dev, struct device *parent)
driver_sysfs_remove(dev);
- if (dev->bus)
- blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
- BUS_NOTIFY_UNBIND_DRIVER,
- dev);
+ bus_notify(dev, BUS_NOTIFY_UNBIND_DRIVER);
pm_runtime_put_sync(dev);
@@ -1258,11 +1247,8 @@ static void __device_release_driver(struct device *dev, struct device *parent)
klist_remove(&dev->p->knode_driver);
device_pm_check_callbacks(dev);
- if (dev->bus)
- blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
- BUS_NOTIFY_UNBOUND_DRIVER,
- dev);
+ bus_notify(dev, BUS_NOTIFY_UNBOUND_DRIVER);
kobject_uevent(&dev->kobj, KOBJ_UNBIND);
}
}