linux-kernel - Re: [PATCH] rtlwifi: remove redundant initialization of variable ul

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Date:   Wed, 02 Feb 2022 02:10:40 -0800
From:   Joe Perches <joe@...ches.com>
To:     Dan Carpenter <dan.carpenter@...cle.com>,
        Pkshih <pkshih@...ltek.com>
Cc:     "kvalo@...nel.org" <kvalo@...nel.org>,
        "linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
        "colin.i.king@...il.com" <colin.i.king@...il.com>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "kuba@...nel.org" <kuba@...nel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] rtlwifi: remove redundant initialization of variable
 ul_encalgo

On Wed, 2022-02-02 at 08:02 +0300, Dan Carpenter wrote:
> On Mon, Jan 31, 2022 at 02:53:40AM +0000, Pkshih wrote:
> > On Sun, 2022-01-30 at 22:37 +0000, Colin Ian King wrote:
> > 
> > When I check this patch, I find there is no 'break' for default case.
> > Do we need one? like
> > 
> > @@ -226,6 +226,7 @@ void rtl_cam_empty_entry(struct ieee80211_hw *hw, u8 uc_index)
> >                 break;
> >         default:
> >                 ul_encalgo = rtlpriv->cfg->maps[SEC_CAM_AES];
> > +               break;
> 
> No, it's not necessary.  The choice of style is up to the original
> developer.

every case should have one.

Documentation/process/deprecated.rst:

All switch/case blocks must end in one of:

* break;
* fallthrough;
* continue;
* goto <label>;
* return [expression];