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

From: Xia, Hui
Date: Mon Aug 10 2020 - 20:27:55 EST




>-----Original Message-----
>From: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
>Sent: 2020年8月7日 6:31
>To: lkp <lkp@xxxxxxxxx>
>Cc: Johnny Chuang <johnny.chuang@xxxxxxxxxx>; kbuild-all@xxxxxxxxxxxx; linux-
>kernel@xxxxxxxxxxxxxxx; Peter Hutterer <peter.hutterer@xxxxxxxxx>
>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@xxxxxxxxx>
>>
>>
>> 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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