RE: [PATCH v2 7/9] usb: cdns3: core: removed 'goto not_otg'

2020-08-02 Thread Pawel Laszczak
>
>On 20-07-13 12:05:52, Pawel Laszczak wrote:
>> Patch removes 'goto not_otg' instruction from
>> cdns3_hw_role_state_machine function.
>>
>> Signed-off-by: Pawel Laszczak 
>> ---
>>  drivers/usb/cdns3/core.c | 20 +---
>>  1 file changed, 9 insertions(+), 11 deletions(-)
>>
>> diff --git a/drivers/usb/cdns3/core.c b/drivers/usb/cdns3/core.c
>> index c498b585eb13..8e3996f211a8 100644
>> --- a/drivers/usb/cdns3/core.c
>> +++ b/drivers/usb/cdns3/core.c
>> @@ -191,11 +191,17 @@ static int cdns3_core_init_role(struct cdns3 *cdns)
>>   */
>>  static enum usb_role cdns3_hw_role_state_machine(struct cdns3 *cdns)
>>  {
>> -enum usb_role role;
>> +enum usb_role role = USB_ROLE_NONE;
>>  int id, vbus;
>>
>> -if (cdns->dr_mode != USB_DR_MODE_OTG)
>> -goto not_otg;
>> +if (cdns->dr_mode != USB_DR_MODE_OTG) {
>> +if (cdns3_is_host(cdns))
>> +role = USB_ROLE_HOST;
>> +if (cdns3_is_device(cdns))
>> +role = USB_ROLE_DEVICE;
>> +
>> +return role;
>> +}
>
>Would you please improve it a bit like below:
>
>   if (cdns->dr_mode != USB_DR_MODE_OTG) {
>   if (cdns3_is_host(cdns))
>   role = USB_ROLE_HOST;
>   else if (cdns3_is_device(cdns))
>   role = USB_ROLE_DEVICE;
>   else
>   role = USB_ROLE_NONE;
>
>   return role;
>   }
>

Sorry for delay, I had holiday. 
Currently this patch was added by Greg to his usb-next branch, so 
I don't want to change anything.  Next time I will add such changes. 

>Peter
>>
>>  id = cdns3_get_id(cdns);
>>  vbus = cdns3_get_vbus(cdns);
>> @@ -232,14 +238,6 @@ static enum usb_role cdns3_hw_role_state_machine(struct 
>> cdns3 *cdns)
>>  dev_dbg(cdns->dev, "role %d -> %d\n", cdns->role, role);
>>
>>  return role;
>> -
>> -not_otg:
>> -if (cdns3_is_host(cdns))
>> -role = USB_ROLE_HOST;
>> -if (cdns3_is_device(cdns))
>> -role = USB_ROLE_DEVICE;
>> -
>> -return role;
>>  }
>>
>>  static int cdns3_idle_role_start(struct cdns3 *cdns)
>> --
>> 2.17.1
>>
>
>--
>
>Thanks,
>Peter Chen

Thanks,
Pawel


Re: [PATCH v2 7/9] usb: cdns3: core: removed 'goto not_otg'

2020-07-21 Thread Peter Chen
On 20-07-13 12:05:52, Pawel Laszczak wrote:
> Patch removes 'goto not_otg' instruction from
> cdns3_hw_role_state_machine function.
> 
> Signed-off-by: Pawel Laszczak 
> ---
>  drivers/usb/cdns3/core.c | 20 +---
>  1 file changed, 9 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/usb/cdns3/core.c b/drivers/usb/cdns3/core.c
> index c498b585eb13..8e3996f211a8 100644
> --- a/drivers/usb/cdns3/core.c
> +++ b/drivers/usb/cdns3/core.c
> @@ -191,11 +191,17 @@ static int cdns3_core_init_role(struct cdns3 *cdns)
>   */
>  static enum usb_role cdns3_hw_role_state_machine(struct cdns3 *cdns)
>  {
> - enum usb_role role;
> + enum usb_role role = USB_ROLE_NONE;
>   int id, vbus;
>  
> - if (cdns->dr_mode != USB_DR_MODE_OTG)
> - goto not_otg;
> + if (cdns->dr_mode != USB_DR_MODE_OTG) {
> + if (cdns3_is_host(cdns))
> + role = USB_ROLE_HOST;
> + if (cdns3_is_device(cdns))
> + role = USB_ROLE_DEVICE;
> +
> + return role;
> + }

Would you please improve it a bit like below:

if (cdns->dr_mode != USB_DR_MODE_OTG) {
if (cdns3_is_host(cdns))
role = USB_ROLE_HOST;
else if (cdns3_is_device(cdns))
role = USB_ROLE_DEVICE;
else
role = USB_ROLE_NONE;

return role;
}

Peter
>  
>   id = cdns3_get_id(cdns);
>   vbus = cdns3_get_vbus(cdns);
> @@ -232,14 +238,6 @@ static enum usb_role cdns3_hw_role_state_machine(struct 
> cdns3 *cdns)
>   dev_dbg(cdns->dev, "role %d -> %d\n", cdns->role, role);
>  
>   return role;
> -
> -not_otg:
> - if (cdns3_is_host(cdns))
> - role = USB_ROLE_HOST;
> - if (cdns3_is_device(cdns))
> - role = USB_ROLE_DEVICE;
> -
> - return role;
>  }
>  
>  static int cdns3_idle_role_start(struct cdns3 *cdns)
> -- 
> 2.17.1
> 

-- 

Thanks,
Peter Chen