From feccc30d90155bcbc937f87643182a43d25873eb Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Mon, 3 Mar 2008 15:15:59 -0500 Subject: USB: remove CONFIG_USB_PERSIST setting This patch (as1047) removes the USB_PERSIST Kconfig option, enabling it permanently. It also prevents the power/persist attribute from being created for hub devices; there's no point in having it since USB-PERSIST is always turned on for hubs. Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/quirks.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'drivers/usb/core/quirks.c') diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c index dfc5418ea10..f384edf35b4 100644 --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -97,4 +97,16 @@ void usb_detect_quirks(struct usb_device *udev) if (udev->descriptor.bDeviceClass != USB_CLASS_HUB) udev->autosuspend_disabled = 1; #endif + +#ifdef CONFIG_PM + /* Hubs are automatically enabled for USB-PERSIST */ + if (udev->descriptor.bDeviceClass == USB_CLASS_HUB) + udev->persist_enabled = 1; +#else + /* In the absense of PM, we can safely enable USB-PERSIST + * for all devices. It will affect things like hub resets + * and EMF-related port disables. + */ + udev->persist_enabled = 1; +#endif /* CONFIG_PM */ } -- cgit v1.2.3