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Subject: Re: [PATCH 05/33] cxgb4: use match_string() helper
To:     Andy Shevchenko <andy.shevchenko@gmail.com>
References: <1526903890-35761-1-git-send-email-xieyisheng1@huawei.com>
 <1526903890-35761-6-git-send-email-xieyisheng1@huawei.com>
 <CAHp75Vcpfeey_womFqoqp_gyy0=jqMHgW+30WJs-BcVTM-vHQA@mail.gmail.com>
CC:     Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Ganesh Goudar <ganeshgr@chelsio.com>,
        netdev <netdev@vger.kernel.org>
From:   Yisheng Xie <xieyisheng1@huawei.com>
Message-ID: <ef794053-e1db-130c-46dd-312907e26b29@huawei.com>
Date:   Tue, 22 May 2018 08:55:37 +0800
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Hi Andy,

On 2018/5/22 5:39, Andy Shevchenko wrote:
> On Mon, May 21, 2018 at 2:57 PM, Yisheng Xie <xieyisheng1@huawei.com> wrote:
>> match_string() returns the index of an array for a matching string,
>> which can be used intead of open coded variant.
> 
>> -       for (i = 0; i < ARRAY_SIZE(cudbg_region); i++) {
>> -               if (!strcmp(cudbg_region[i], region_name)) {
>> -                       found = 1;
>> -                       idx = i;
>> -                       break;
>> -               }
>> -       }
>> -       if (!found)
>> -               return -EINVAL;
>> +       rc = match_string(cudbg_region, ARRAY_SIZE(cudbg_region), region_name);
>> +       if (rc < 0)
>> +               return rc;
>>
>> -       found = 0;
>> +       idx = rc;
> 
> Is found still in use after this?
> If so, is it initialized properly now?
it is initialized  when define 'found', so no need to be initialized once more.

Thanks
Yisheng

>