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authorIngo Molnar <mingo@kernel.org>2019-08-26 11:20:55 +0200
committerIngo Molnar <mingo@kernel.org>2019-08-26 11:20:55 +0200
commitb3e30c9884407599353e690a4eb36d0c4671bf62 (patch)
treed752d32d8a1a395cacd220313f24b933b2ed7294 /drivers/usb/core/usb.h
parent342061c53a049569fc7f56d237753c26b4b2166d (diff)
parenta55aa89aab90fae7c815b0551b07be37db359d76 (diff)
Merge tag 'v5.3-rc6' into x86/cpu, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/usb/core/usb.h')
-rw-r--r--drivers/usb/core/usb.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h
index bd8d01f85a13..0c9fde5ad052 100644
--- a/drivers/usb/core/usb.h
+++ b/drivers/usb/core/usb.h
@@ -153,6 +153,11 @@ static inline int is_usb_port(const struct device *dev)
return dev->type == &usb_port_device_type;
}
+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)