Hi Stephen,

I love your patch! Yet something to improve:

[auto build test ERROR on linus/master]
[cannot apply to v5.3-rc6 next-20190827]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Stephen-Boyd/clk-Evict-unregistered-clks-from-parent-caches/20190827-165138
config: mips-allnoconfig (attached as .config)
compiler: mips-linux-gcc (GCC) 7.4.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=7.4.0 make.cross ARCH=mips 

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

All errors (new ones prefixed by >>):

   drivers/clk/clk.c: In function 'clk_core_evict_parent_cache':
>> drivers/clk/clk.c:3785:15: error: 'all_lists' undeclared (first use in this function); did you mean 'lists'?
     for (lists = all_lists; *lists; lists++)
                  ^~~~~~~~~
                  lists
   drivers/clk/clk.c:3785:15: note: each undeclared identifier is reported only once for each function it appears in

vim +3785 drivers/clk/clk.c

  3776	
  3777	/* Remove this clk from all parent caches */
  3778	static void clk_core_evict_parent_cache(struct clk_core *core)
  3779	{
  3780		struct hlist_head **lists;
  3781		struct clk_core *root;
  3782	
  3783		lockdep_assert_held(&prepare_lock);
  3784	
> 3785		for (lists = all_lists; *lists; lists++)
  3786			hlist_for_each_entry(root, *lists, child_node)
  3787				clk_core_evict_parent_cache_subtree(root, core);
  3788	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation