linux-kernel - Re: [PATCH v3 5/6] usb: Iterator for ports

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Message-ID: <YGVqLVMaUeqgvT4x@kuha.fi.intel.com>
Date:   Thu, 1 Apr 2021 09:37:33 +0300
From:   Heikki Krogerus <heikki.krogerus@...ux.intel.com>
To:     Guenter Roeck <linux@...ck-us.net>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Alan Stern <stern@...land.harvard.edu>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 5/6] usb: Iterator for ports

On Wed, Mar 31, 2021 at 09:41:22AM -0700, Guenter Roeck wrote:
> > diff --git a/include/linux/usb.h b/include/linux/usb.h
> > index ddd2f5b2a2827..ebcd03d835d04 100644
> > --- a/include/linux/usb.h
> > +++ b/include/linux/usb.h
> > @@ -882,6 +882,15 @@ extern struct usb_host_interface *usb_find_alt_setting(
> >  		unsigned int iface_num,
> >  		unsigned int alt_num);
> >  
> > +#ifdef CONFIG_USB
> 
> #if IS_ENABLED(CONFIG_USB)

Thanks Guenter.

> > +int usb_for_each_port(void *data, int (*fn)(struct device *, void *));
> > +#else
> > +static inline int usb_for_each_port(void *data, int (*fn)(struct device *, void *))
> > +{
> > +	return 0;
> > +}
> > +#endif
> > +
> >  /* port claiming functions */
> >  int usb_hub_claim_port(struct usb_device *hdev, unsigned port1,
> >  		struct usb_dev_state *owner);
> > 

-- 
heikki