Hi Greg, After merging the usb tree, today's linux-next build (sparc64 defconfig) failed like this: drivers/usb/core/hub.c: In function 'port_event': drivers/usb/core/hub.c:4853:2: error: implicit declaration of function 'hub_handle_remote_wakeup' [-Werror=implicit-function-declaration] Caused by commits af376a461cf0 ("usb: refactor port handling in hub_events()") and 7e73be227b15 ("usb: hub_handle_remote_wakeup() depends on CONFIG_PM_RUNTIME=y") This build has CONFIG_PM not set ... I have added this fix patch for today (there is probably a better way): From: Stephen Rothwell Date: Thu, 29 May 2014 18:55:06 +1000 Subject: [PATCH] usb: hub_handle_remote_wakeup() only exists for CONFIG_PM=y Signed-off-by: Stephen Rothwell --- drivers/usb/core/hub.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 5672752bfd2c..879b66e13370 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -3977,6 +3977,12 @@ EXPORT_SYMBOL_GPL(usb_disable_ltm); void usb_enable_ltm(struct usb_device *udev) { } EXPORT_SYMBOL_GPL(usb_enable_ltm); +static int hub_handle_remote_wakeup(struct usb_hub *hub, unsigned int port, + u16 portstatus, u16 portchange) +{ + return 0; +} + #endif /* CONFIG_PM */ -- 2.0.0 -- Cheers, Stephen Rothwell sfr@canb.auug.org.au