Re: [PATCH] Input: i8042: Remove unneeded variable

From: kernel test robot
Date: Thu Feb 25 2021 - 10:32:42 EST


Hi angkery,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on input/next]
[also build test ERROR on v5.11 next-20210225]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url: https://github.com/0day-ci/linux/commits/angkery/Input-i8042-Remove-unneeded-variable/20210225-215352
base: https://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git next
config: i386-randconfig-r031-20210225 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
# https://github.com/0day-ci/linux/commit/d3f5af97cbc5d1ff5f8a3e96e4d858335f910e78
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review angkery/Input-i8042-Remove-unneeded-variable/20210225-215352
git checkout d3f5af97cbc5d1ff5f8a3e96e4d858335f910e78
# save the attached .config to linux build tree
make W=1 ARCH=i386

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

In file included from drivers/input/serio/i8042.h:23,
from drivers/input/serio/i8042.c:131:
drivers/input/serio/i8042-x86ia64io.h:591:14: warning: initialized field overwritten [-Woverride-init]
591 | .matches = {
| ^
drivers/input/serio/i8042-x86ia64io.h:591:14: note: (near initialization for 'i8042_dmi_noselftest_table[0].matches')
drivers/input/serio/i8042.c: In function 'i8042_panic_blink':
>> drivers/input/serio/i8042.c:1125:37: error: 'delay' undeclared (first use in this function); did you mean 'mdelay'?
1125 | #define DELAY do { mdelay(1); if (++delay > 10) return delay; } while(0)
| ^~~~~
drivers/input/serio/i8042.c:1133:3: note: in expansion of macro 'DELAY'
1133 | DELAY;
| ^~~~~
drivers/input/serio/i8042.c:1125:37: note: each undeclared identifier is reported only once for each function it appears in
1125 | #define DELAY do { mdelay(1); if (++delay > 10) return delay; } while(0)
| ^~~~~
drivers/input/serio/i8042.c:1133:3: note: in expansion of macro 'DELAY'
1133 | DELAY;
| ^~~~~


vim +1125 drivers/input/serio/i8042.c

^1da177e4c3f41 Linus Torvalds 2005-04-16 1113
^1da177e4c3f41 Linus Torvalds 2005-04-16 1114
^1da177e4c3f41 Linus Torvalds 2005-04-16 1115 /*
c7ff0d9c92435e TAMUKI Shoichi 2010-08-10 1116 * i8042_panic_blink() will turn the keyboard LEDs on or off and is called
c7ff0d9c92435e TAMUKI Shoichi 2010-08-10 1117 * when kernel panics. Flashing LEDs is useful for users running X who may
aa5e5dc2a8878e Michael Opdenacker 2013-09-18 1118 * not see the console and will help distinguishing panics from "real"
^1da177e4c3f41 Linus Torvalds 2005-04-16 1119 * lockups.
^1da177e4c3f41 Linus Torvalds 2005-04-16 1120 *
^1da177e4c3f41 Linus Torvalds 2005-04-16 1121 * Note that DELAY has a limit of 10ms so we will not get stuck here
^1da177e4c3f41 Linus Torvalds 2005-04-16 1122 * waiting for KBC to free up even if KBD interrupt is off
^1da177e4c3f41 Linus Torvalds 2005-04-16 1123 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 1124
^1da177e4c3f41 Linus Torvalds 2005-04-16 @1125 #define DELAY do { mdelay(1); if (++delay > 10) return delay; } while(0)
^1da177e4c3f41 Linus Torvalds 2005-04-16 1126

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