Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) client-ip=2620:137:e000::1:18;
Message-ID: <ed0e9f7b-9ba9-b0c8-8261-397bf793b9b9@gmail.com>
Date:   Sun, 3 Apr 2022 18:59:26 +0300
MIME-Version: 1.0
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101
 Thunderbird/91.7.0
Subject: Re: [PATCH] staging: r8188eu: simplify control flow
Content-Language: en-US
To:     Sevinj Aghayeva <sevinj.aghayeva@gmail.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc:     linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org,
        outreachy@lists.linux.dev
References: <20220403155111.GA333187@euclid>
From:   Pavel Skripkin <paskripkin@gmail.com>
In-Reply-To: <20220403155111.GA333187@euclid>
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
Precedence: bulk

Hi Sevinj,

On 4/3/22 18:51, Sevinj Aghayeva wrote:
> The function iterates an index from 0 to NUM_PMKID_CACHE and returns
> the first index for which the condition is true. If no such index is
> found, the function returns -1. Current code has a complex control
> flow that obfuscates this simple task. Replace it with a loop.
> 
> Also, given the shortened function body, replace the long variable
> name psecuritypriv with a short variable name p.
> 
> Reported by checkpatch:
> 
> WARNING: else is not generally useful after a break or return
> 
> Signed-off-by: Sevinj Aghayeva <sevinj.aghayeva@gmail.com>
> ---

[code snip]

> +	for (i = 0; i < NUM_PMKID_CACHE; i++)
> +		if ((p->PMKIDList[i].bUsed) &&
> +				(!memcmp(p->PMKIDList[i].Bssid, bssid, ETH_ALEN)))
> +			return i;
> +	return -1;
>   }
>   
>   /*  */

Looks good, but let's not introduce new checkpatch issue:

CHECK: Alignment should match open parenthesis
#62: FILE: drivers/staging/r8188eu/core/rtw_mlme.c:1645:
+		if ((p->PMKIDList[i].bUsed) &&
+				(!memcmp(p->PMKIDList[i].Bssid, bssid, ETH_ALEN)))


With regards,
Pavel Skripkin