Subject: Re: linux-next: build failure after merge of the usb tree

From: Greg KH <[email-masked]>
Date: Thu, 29 May 2014 11:18:44 -0700

On Thu, May 29, 2014 at 07:01:29PM +1000, Stephen Rothwell wrote:
> 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 <[email-masked]>
> 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 <[email-masked]>
> ---
>  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 */
>  
>  

Dan, any objection to me taking this patch?

thanks,

greg k-h