linux-kernel - Re: [PATCH 3/4] usb: host: ehci.h: remove duplicated return

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Date:	Wed, 9 Dec 2015 23:22:38 +0300
From:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:	"Geyslan G. Bem" <geyslan@...il.com>
Cc:	Peter Senna Tschudin <peter.senna@...il.com>,
	Alan Stern <stern@...land.harvard.edu>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-usb@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/4] usb: host: ehci.h: remove duplicated return

On 12/09/2015 11:15 PM, Geyslan G. Bem wrote:

>>> This patch removes the return of the default switch case, since
>>> 'ehci_port_speed()' already has the same default return.
>>>
>>> Signed-off-by: Geyslan G. Bem <geyslan@...il.com>
>>> ---
>>>    drivers/usb/host/ehci.h | 2 +-
>>>    1 file changed, 1 insertion(+), 1 deletion(-)
>>>
>>> diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
>>> index 0daed80..49b91b6 100644
>>> --- a/drivers/usb/host/ehci.h
>>> +++ b/drivers/usb/host/ehci.h
>>> @@ -664,8 +664,8 @@ ehci_port_speed(struct ehci_hcd *ehci, unsigned int
>>> portsc)
>>>                  case 1:
>>>                          return USB_PORT_STAT_LOW_SPEED;
>>>                  case 2:
>>> +               /* fall through to default function return */
>>
>>
>>     We just don't need the above *case*.
>>
>>>                  default:
>>> -                       return USB_PORT_STAT_HIGH_SPEED;
>>
>>
>>     And n ow we don't need *dafault* too.

> Case 1 only? If not low_speed, high_speed. So, I'll change it to a
> simple if branch.

    There's *case* 0 yet.


>>
>>>                  }
>>>          }
>>>          return USB_PORT_STAT_HIGH_SPEED;

MBR, Sergei

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