Re: [PATCH v2 2/4] mfd: rk8xx-core: allow to customize RK806 reset mode

[Quentin Schulz]

Hi all,

On 6/7/25 7:46 AM, kernel test robot wrote:
> Hi Quentin,
>
> kernel test robot noticed the following build errors:
>
> [auto build test ERROR on ec7714e4947909190ffb3041a03311a975350fe0]
>
> url:    https://github.com/intel-lab-lkp/linux/commits/Quentin-Schulz/dt-bindings-mfd-rk806-allow-to-customize-PMIC-reset-mode/20250605-234243
> base:   ec7714e4947909190ffb3041a03311a975350fe0
> patch link:    https://lore.kernel.org/r/20250605-rk8xx-rst-fun-v2-2-143d190596dd%40cherry.de
> patch subject: [PATCH v2 2/4] mfd: rk8xx-core: allow to customize RK806 reset mode
> config: arc-randconfig-001-20250607 (https://download.01.org/0day-ci/archive/20250607/202506071321.Ze0gsxC0-lkp@xxxxxxxxx/config)
> compiler: arc-linux-gcc (GCC) 15.1.0
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250607/202506071321.Ze0gsxC0-lkp@xxxxxxxxx/reproduce)
>
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <lkp@xxxxxxxxx>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202506071321.Ze0gsxC0-lkp@xxxxxxxxx/
>
> All errors (new ones prefixed by >>):
>
>     drivers/mfd/rk8xx-core.c: In function 'rk8xx_probe':
> > > drivers/mfd/rk8xx-core.c:740:42: error: implicit declaration of function 'FIELD_PREP' [-Wimplicit-function-declaration]

This should be simply fixed with the addition of

#include <linux/bitfield.h>

Though somehow I cannot reproduce the error locally as I get:

COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-15.1.0 
~/work/upstream/lkp-tests/kbuild/make.cross W=1 O=build/0day ARCH=arc 
olddefconfig
Compiler will be installed in /home/qschulz/0day
lftpget -c 
https://cdn.kernel.org/pub/tools/crosstool/files/bin/x86_64/15.1.0/x86_64-gcc-15.1.0-nolibc-sparc-linux.tar.xz
/home/qschulz/work/upstream/linux
tar Jxf 
/home/qschulz/0day/15.1.0/x86_64-gcc-15.1.0-nolibc-sparc-linux.tar.xz -C 
/home/qschulz/0day
No gcc cross compiler for arc
setup_crosstool failed

But I'm pretty sure that should be enough to fix it :)

Since it's a minor change, I'll give this v2 some time on the ML to 
hopefully gather some feedback before I send a v3.

Cheers,
Quentin