Re: [PATCH 1/3] usb: gadget: dummy_hcd: simplify dummy_start()

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, 3 Jun 2014, Pantelis Koukousoulas wrote:

> dummy_start() and dummy_start_ss() do mostly the same things
> so just merge them into a simpler / easier to maintain dummy_start().
> 
> Signed-off-by: Pantelis Koukousoulas <pktoss@xxxxxxxxx>
> ---
>  drivers/usb/gadget/dummy_hcd.c | 35 +++++++----------------------------
>  1 file changed, 7 insertions(+), 28 deletions(-)
> 
> diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c
> index 8c06430..5b67c75 100644
> --- a/drivers/usb/gadget/dummy_hcd.c
> +++ b/drivers/usb/gadget/dummy_hcd.c
> @@ -2314,39 +2314,13 @@ static ssize_t urbs_show(struct device *dev, struct device_attribute *attr,
>  }
>  static DEVICE_ATTR_RO(urbs);
>  
> -static int dummy_start_ss(struct dummy_hcd *dum_hcd)
> -{
> -	init_timer(&dum_hcd->timer);
> -	dum_hcd->timer.function = dummy_timer;
> -	dum_hcd->timer.data = (unsigned long)dum_hcd;
> -	dum_hcd->rh_state = DUMMY_RH_RUNNING;
> -	dum_hcd->stream_en_ep = 0;
> -	INIT_LIST_HEAD(&dum_hcd->urbp_list);
> -	dummy_hcd_to_hcd(dum_hcd)->power_budget = POWER_BUDGET;
> -	dummy_hcd_to_hcd(dum_hcd)->state = HC_STATE_RUNNING;
> -	dummy_hcd_to_hcd(dum_hcd)->uses_new_polling = 1;
> -#ifdef CONFIG_USB_OTG
> -	dummy_hcd_to_hcd(dum_hcd)->self.otg_port = 1;
> -#endif
> -	return 0;
> -
> -	/* FIXME 'urbs' should be a per-device thing, maybe in usbcore */
> -	return device_create_file(dummy_dev(dum_hcd), &dev_attr_urbs);
> -}
> -
>  static int dummy_start(struct usb_hcd *hcd)
>  {
>  	struct dummy_hcd	*dum_hcd = hcd_to_dummy_hcd(hcd);
>  
> -	/*
> -	 * MASTER side init ... we emulate a root hub that'll only ever
> -	 * talk to one device (the slave side).  Also appears in sysfs,
> -	 * just like more familiar pci-based HCDs.
> -	 */

Like I said before, please do not remove this comment.

> -	if (!usb_hcd_is_primary_hcd(hcd))
> -		return dummy_start_ss(dum_hcd);
> +	if (usb_hcd_is_primary_hcd(hcd))
> +		spin_lock_init(&dum_hcd->dum->lock);
>  
> -	spin_lock_init(&dum_hcd->dum->lock);
>  	init_timer(&dum_hcd->timer);
>  	dum_hcd->timer.function = dummy_timer;
>  	dum_hcd->timer.data = (unsigned long)dum_hcd;
> @@ -2362,6 +2336,11 @@ static int dummy_start(struct usb_hcd *hcd)
>  	hcd->self.otg_port = 1;
>  #endif
>  
> +	if (!usb_hcd_is_primary_hcd(hcd)) {
> +		dum_hcd->stream_en_ep = 0;
> +		return 0;
> +	}
> +
>  	/* FIXME 'urbs' should be a per-device thing, maybe in usbcore */
>  	return device_create_file(dummy_dev(dum_hcd), &dev_attr_urbs);
>  }

When you put the comment back, you can add

Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>

--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux Media]     [Linux Input]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Old Linux USB Devel Archive]

  Powered by Linux