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

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Date:   Sat, 6 Oct 2018 19:48:04 -0500
From:   Larry Finger <Larry.Finger@...inger.net>
To:     Joe Perches <joe@...ches.com>, Kalle Valo <kvalo@...eaurora.org>,
        Colin King <colin.king@...onical.com>
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 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?

Larry