On Mon, 2 Jun 2014, Dan Williams wrote:

> In preparation for moving hub power management logic to its own file and
> removing instances of #ifdef CONFIG_PM in hub.c, introduce a
> usb_set_reset_resume() helper.
> 
> Signed-off-by: Dan Williams <[email protected]>
> ---
>  drivers/usb/core/hub.c |    5 ++---
>  include/linux/usb.h    |   11 +++++++++++
>  2 files changed, 13 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
> index c8916969d76c..63b1963620a3 100644
> --- a/drivers/usb/core/hub.c
> +++ b/drivers/usb/core/hub.c
> @@ -1172,9 +1172,8 @@ static void hub_activate(struct usb_hub *hub, enum 
> hub_activation_type type)
>                               set_bit(port1, hub->change_bits);
>  
>               } else if (udev->persist_enabled) {
> -#ifdef CONFIG_PM
> -                     udev->reset_resume = 1;
> -#endif
> +                     usb_set_reset_resume(udev);
> +
>                       /* Don't set the change_bits when the device
>                        * was powered off.
>                        */

It seems odd that usb_set_reset_resume() gets used here but not in the 
other places where udev->reset_resume gets set to 1 (or to 0 for that 
matter).  Of course, the other places are all inside #ifdef CONFIG_PM 
regions, so they don't need it.

Acked-by: Alan Stern <[email protected]>

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