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| author | Yajun Deng <yajun.deng@linux.dev> | 2024-01-04 11:28:22 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-01-04 16:06:32 +0100 |
| commit | 49a78b05d5ca1e23fd737747a8757b8bdc319b30 (patch) | |
| tree | 9b6c082d0f6101495782b1501710d9771f0c4cea /drivers/usb/core/usb.h | |
| parent | 33d4137d57997476404bc968fcc5b2ed5639a22f (diff) | |
| download | linux-stable-49a78b05d5ca1e23fd737747a8757b8bdc319b30.tar.gz linux-stable-49a78b05d5ca1e23fd737747a8757b8bdc319b30.tar.bz2 linux-stable-49a78b05d5ca1e23fd737747a8757b8bdc319b30.zip | |
USB: core: Use device_driver directly in struct usb_driver and usb_device_driver
There is usbdrv_wrap in struct usb_driver and usb_device_driver, it
contains device_driver and for_devices. for_devices is used to
distinguish between device drivers and interface drivers.
Like the is_usb_device(), it tests the type of the device. We can test
that if the probe of device_driver is equal to usb_probe_device in
is_usb_device_driver(), and then the struct usbdrv_wrap is no longer
needed.
Clean up struct usbdrv_wrap, use device_driver directly in struct
usb_driver and usb_device_driver. This makes the code cleaner.
Signed-off-by: Yajun Deng <yajun.deng@linux.dev>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://lore.kernel.org/r/20240104032822.1896596-1-yajun.deng@linux.dev
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/core/usb.h')
| -rw-r--r-- | drivers/usb/core/usb.h | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h index 60363153fc3f..bfecb50773b6 100644 --- a/drivers/usb/core/usb.h +++ b/drivers/usb/core/usb.h @@ -175,13 +175,7 @@ static inline int is_root_hub(struct usb_device *udev) return (udev->parent == NULL); } -/* Do the same for device drivers and interface drivers. */ - -static inline int is_usb_device_driver(struct device_driver *drv) -{ - return container_of(drv, struct usbdrv_wrap, driver)-> - for_devices; -} +extern bool is_usb_device_driver(const struct device_driver *drv); /* for labeling diagnostics */ extern const char *usbcore_name; |