linux-kernel - RE: [kbuild-all] Re: drivers/input/touchscreen/elants_i2c.c:859:45: warning: Clarify calculation precedence for '&' and

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Message-ID: <MN2PR11MB4064AF159BCBC162DEC6A6FDE5450@MN2PR11MB4064.namprd11.prod.outlook.com>
Date:   Tue, 11 Aug 2020 00:27:42 +0000
From:   "Xia, Hui" <hui.xia@...el.com>
To:     Dmitry Torokhov <dmitry.torokhov@...il.com>, lkp <lkp@...el.com>
CC:     Johnny Chuang <johnny.chuang@....com.tw>,
        "kbuild-all@...ts.01.org" <kbuild-all@...ts.01.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Peter Hutterer <peter.hutterer@...-t.net>
Subject: RE: [kbuild-all] Re: drivers/input/touchscreen/elants_i2c.c:859:45:
 warning: Clarify calculation precedence for '&' and



>-----Original Message-----
>From: Dmitry Torokhov <dmitry.torokhov@...il.com>
>Sent: 2020年8月7日 6:31
>To: lkp <lkp@...el.com>
>Cc: Johnny Chuang <johnny.chuang@....com.tw>; kbuild-all@...ts.01.org; linux-
>kernel@...r.kernel.org; Peter Hutterer <peter.hutterer@...-t.net>
>Subject: [kbuild-all] Re: drivers/input/touchscreen/elants_i2c.c:859:45: warning:
>Clarify calculation precedence for '&' and
>
>On Sun, Aug 02, 2020 at 06:18:19AM +0800, kernel test robot wrote:
>> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
>> head:   d52daa8620c65960e1ef882adc1f92061326bd7a
>> commit: f27ad8932725f8dd0cd1a46763de4a40377b1ae6 Input: elants_i2c -
>support palm detection
>> date:   4 months ago
>> compiler: xtensa-linux-gcc (GCC) 9.3.0
>>
>> If you fix the issue, kindly add following tag as appropriate
>> Reported-by: kernel test robot <lkp@...el.com>
>>
>>
>> cppcheck warnings: (new ones prefixed by >>)
>>
>> >> drivers/input/touchscreen/elants_i2c.c:859:45: warning: Clarify
>> >> calculation precedence for '&' and '?'. [clarifyCalculation]
>>     tool_type = buf[FW_POS_TOOL_TYPE] & BIT(0) ?
>>                                                ^
>
>No, there is no need to clarify precedence as it is already clear.

Thanks Dmitry. We will ignore this warning type. Sorry for the noise.

--Hui

>
>Thanks.
>
>--
>Dmitry
>_______________________________________________
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