Hi, Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> writes: >> Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> writes: >> > diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c >> > index 7fcb9f782931..f3d6b1ab80cb 100644 >> > --- a/drivers/usb/core/usb.c >> > +++ b/drivers/usb/core/usb.c >> > @@ -1185,19 +1185,17 @@ static struct notifier_block usb_bus_nb = { >> > .notifier_call = usb_bus_notify, >> > }; >> > >> > -struct dentry *usb_debug_root; >> > -EXPORT_SYMBOL_GPL(usb_debug_root); >> > +static struct dentry *usb_devices_root; >> > >> > static void usb_debugfs_init(void) >> > { >> > - usb_debug_root = debugfs_create_dir("usb", NULL); >> > - debugfs_create_file("devices", 0444, usb_debug_root, NULL, >> > - &usbfs_devices_fops); >> > + usb_devices_root = debugfs_create_file("devices", 0444, usb_debug_root, >> >> don't we have a race now? Can usbcore ever probe before usb common? > > How can that happen if usb_debug_root is in usb common? The module > loader will not let that happen. Or it shouldn't :) argh, indeed. The very fact that usbcore tries to resolve usb_debug_root already forces a dependency :-p -- balbi
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