Re: [PATCH v6 4/8] usb: core: add power sequence handling for USB devices

From: Alan Stern
Date: Tue Aug 23 2016 - 11:39:23 EST


On Tue, 23 Aug 2016, Peter Chen wrote:

> I will add #ifdef CONFIG_OF for related code. And put the content at
> hub_pwrseq_on at hub_probe directly, how about below?
>
> hub_probe() {
>
> ...
>
> if (hub_configure(hub, endpoint) >= 0) {
> #ifdef CONFIG_OF
> for_each_child_of_node(parent->of_node, np) {
> ret = generic_pwrseq_on(np, hub);
> if (ret)
> return ret;
> }
> #else
> return 0;
> #endif
> }

Please make this a separate subroutine like you had before, but now in
hub.c:

#ifdef CONFIG_OF
static int hub_of_pwrseq_on(struct usb_hub *hub)
{
...
}

#else
static inline int hub_of_pwrseq_on(struct usb_hub *hub)
{
return 0;
}
#endif /* CONFIG_OF */


Alan Stern