netdev - Re: [PATCH] rtlwifi: rtl8821ae: add in a missing break in switch statement

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Message-ID: <ef823992-8f30-8fe7-88e1-52b29aa267a8@canonical.com>
Date:   Mon, 8 Oct 2018 09:55:10 +0100
From:   Colin Ian King <colin.king@...onical.com>
To:     Larry Finger <Larry.Finger@...inger.net>,
        Joe Perches <joe@...ches.com>,
        Kalle Valo <kvalo@...eaurora.org>
Cc:     Ping-Ke Shih <pkshih@...ltek.com>,
        "David S . Miller" <davem@...emloft.net>,
        Tsang-Shian Lin <thlin@...ltek.com>,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] rtlwifi: rtl8821ae: add in a missing break in switch
 statement

On 07/10/18 01:48, Larry Finger wrote:
> On 10/6/18 5:03 PM, Joe Perches wrote:
>> On Sat, 2018-10-06 at 17:00 -0500, Larry Finger wrote:
>>> On 10/6/18 3:17 PM, Joe Perches wrote:
>>>> On Sat, 2018-10-06 at 15:05 -0500, Larry Finger wrote:
>>>>> On 10/6/18 2:30 PM, Kalle Valo wrote:
>>>>>> Colin King <colin.king@...onical.com> writes:
>>>>>>
>>>>>>> From: Colin Ian King <colin.king@...onical.com>
>>>>>>>
>>>>>>> The switch case RATR_INX_WIRELESS_MC has a missing break, this seems
>>>>>>> to be unintentional as the setting of variable ret gets overwritten
>>>>>>> when the case falls through to the following RATR_INX_WIRELESS_AC_5N
>>>>>>> case.  Fix this by adding in the missing break.
>>>>>>>
>>>>>>> Detected by CoverityScan, CID#1167237 ("Missing break in switch")
>>>>>>>
>>>>>>> Fixes: 3c05bedb5fef ("Staging: rtl8812ae: Add Realtek 8821 PCI
>>>>>>> WIFI driver")
>>>>>>> Signed-off-by: Colin Ian King <colin.king@...onical.com>
>>>>>>> ---
>>>>>>>     drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c | 1 +
>>>>>>
>>>>>> Is the fixes line correct? This patch is not for staging.
>>>>>
>>>>> No, the correct fixes commit is 21e4b0726dc67 (" rtlwifi:
>>>>> rtl8821ae: Move driver
>>>>> from staging to regular tree").
>>>>>
>>>>> This driver was initially placed in staging as it was needed for a
>>>>> special
>>>>> project, which is the commit that Colin used. As the patch subject
>>>>> states, the
>>>>> driver was later moved to the regular wireless tree.
>>>>>
>>>>> That break is required, thus ACKed-by: Larry Finger
>>>>> <Larry.Finger@...inger.net>
>>>>
>>>> Why not remove this entirely and use the generic routine in
>>>> drivers/net/wireless/realtek/rtlwifi/base.c?
>>>>
>>>> Is there a real difference?
>>>
>>> I did not see any difference other than the removal of a bunch of
>>> magic numbers
>>> and better formatting.
>>
>> Me neither.
> 
> Colin,
> 
> Do you want to push the new patch removing the duplicate routine from
> rtl8821ae?

Indeed. Sent.
> 
> Larry