Hi Matti,

I love your patch! Yet something to improve:

[auto build test ERROR on v5.12-rc6]
[also build test ERROR on next-20210401]
[cannot apply to regulator/for-next]
[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/Matti-Vaittinen/Extend-regulator-notification-support/20210406-151758
base:    e49d033bddf5b565044e2abe4241353959bc9120
config: x86_64-randconfig-a014-20210406 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project a46f59a747a7273cc439efaf3b4f98d8b63d2f20)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        # https://github.com/0day-ci/linux/commit/50f89bb3fbe5e4a21c48a9ca64065f3f3a668e56
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Matti-Vaittinen/Extend-regulator-notification-support/20210406-151758
        git checkout 50f89bb3fbe5e4a21c48a9ca64065f3f3a668e56
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

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

All errors (new ones prefixed by >>):

>> drivers/regulator/irq_helpers.c:46:11: error: expected ')'
           pr_emerg(msg);
                    ^
   drivers/regulator/irq_helpers.c:46:2: note: to match this '('
           pr_emerg(msg);
           ^
   include/linux/printk.h:313:8: note: expanded from macro 'pr_emerg'
           printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
                 ^
   1 error generated.


vim +46 drivers/regulator/irq_helpers.c

    43	
    44	static void die_loudly(const char *msg)
    45	{
  > 46		pr_emerg(msg);
    47		BUG();
    48	}
    49	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org