linux-kernel - Re: [PATCH] carl9170: remove set but not used variable 'udev'

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Date:   Thu, 25 Jul 2019 09:40:29 +0800
From:   Yuehaibing <yuehaibing@...wei.com>
To:     Christian Lamparter <chunkeey@...il.com>
CC:     Kalle Valo <kvalo@...eaurora.org>,
        linux-wireless <linux-wireless@...r.kernel.org>,
        Netdev <netdev@...r.kernel.org>,
        <kernel-janitors@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Hulk Robot <hulkci@...wei.com>
Subject: Re: [PATCH] carl9170: remove set but not used variable 'udev'

On 2019/7/25 3:42, Christian Lamparter wrote:
> On Wed, Jul 24, 2019 at 3:48 AM YueHaibing <yuehaibing@...wei.com> wrote:
>>
>> Fixes gcc '-Wunused-but-set-variable' warning:
>>
>> drivers/net/wireless/ath/carl9170/usb.c: In function 'carl9170_usb_disconnect':
>> drivers/net/wireless/ath/carl9170/usb.c:1110:21: warning:
>>  variable 'udev' set but not used [-Wunused-but-set-variable]
>>
>> It is not used, so can be removed.
>>
>> Reported-by: Hulk Robot <hulkci@...wei.com>
>> Signed-off-by: YueHaibing <yuehaibing@...wei.com>
>> ---
> Isn't this the same patch you sent earlier:
> 
> https://patchwork.kernel.org/patch/11027909/
> 
>>>From what I can tell, it's the same but with an extra [-next], I
> remember that I've acked that one
> but your patch now does not have it? Is this an oversight, because I'm
> the maintainer for this
> driver. So, in my opinion at least the "ack" should have some value
> and shouldn't be "ignored".
> 
> Look, from what I know, Kalle is not ignoring you, It's just that
> carl9170 is no longer top priority.
> So please be patient. As long as its queued in the patchwork it will
> get considered.

Thank you for reminder. I forget the previous patch，and our CI robot
report it again, So I do it again, sorry for confusion.

Just pls drop this and use previous one.

> 
> Cheers,
> Christian
> 
>>  drivers/net/wireless/ath/carl9170/usb.c | 2 --
>>  1 file changed, 2 deletions(-)
>>
>> diff --git a/drivers/net/wireless/ath/carl9170/usb.c b/drivers/net/wireless/ath/carl9170/usb.c
>> index 99f1897a775d..486957a04bd1 100644
>> --- a/drivers/net/wireless/ath/carl9170/usb.c
>> +++ b/drivers/net/wireless/ath/carl9170/usb.c
>> @@ -1107,12 +1107,10 @@ static int carl9170_usb_probe(struct usb_interface *intf,
>>  static void carl9170_usb_disconnect(struct usb_interface *intf)
>>  {
>>         struct ar9170 *ar = usb_get_intfdata(intf);
>> -       struct usb_device *udev;
>>
>>         if (WARN_ON(!ar))
>>                 return;
>>
>> -       udev = ar->udev;
>>         wait_for_completion(&ar->fw_load_wait);
>>
>>         if (IS_INITIALIZED(ar)) {
>>
>>
>>
> 
> .
>