diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-02-09 10:35:56 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-02-10 10:16:42 +0100 |
| commit | 8c99377e614f8abfd881c34611002b2af5ab1ee8 (patch) | |
| tree | 2122c752dc8c47b6be963a18fcfecab2f8735417 /include/linux/device | |
| parent | ad8685d0f61a6fc1dc2e5874f4924ff5028c5954 (diff) | |
driver core: bus: add bus_get_dev_root() function
Instead of poking around in the struct bus_type directly for the
dev_root pointer, provide a function to return it properly reference
counted, if it is present in the bus. This will be needed to move the
pointer out of struct bus_type in the future.
Use the function in the driver core code at the same time it is
introduced to verify that it works properly.
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Link: https://lore.kernel.org/r/20230209093556.19132-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/device')
| -rw-r--r-- | include/linux/device/bus.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/device/bus.h b/include/linux/device/bus.h index 31be18608f83..6ce32ef4b8fd 100644 --- a/include/linux/device/bus.h +++ b/include/linux/device/bus.h @@ -282,5 +282,6 @@ enum bus_notifier_event { }; extern struct kset *bus_get_kset(const struct bus_type *bus); +struct device *bus_get_dev_root(const struct bus_type *bus); #endif |