[paulmck-rcu:dev.2023.08.14a 48/51] kernel/rcu/tree_stall.h:11:10: fatal error: linux/rcu_notifier.h: No such file or directory

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev.2023.08.14a
head:   a90c4cbc91475bd5df35f712a954972fbfff40a1
commit: 815c9a53ab6b20e0dc90e733336151310a05cba2 [48/51] rcu: Add RCU CPU stall notifier
config: parisc-defconfig (https://download.01.org/0day-ci/archive/20230816/202308161041.0EOMbdcX-lkp@xxxxxxxxx/config)
compiler: hppa-linux-gcc (GCC) 12.3.0
reproduce: (https://download.01.org/0day-ci/archive/20230816/202308161041.0EOMbdcX-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/202308161041.0EOMbdcX-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

   In file included from kernel/rcu/tree.c:5066:
>> kernel/rcu/tree_stall.h:11:10: fatal error: linux/rcu_notifier.h: No such file or directory
      11 | #include <linux/rcu_notifier.h>
         |          ^~~~~~~~~~~~~~~~~~~~~~
   compilation terminated.


vim +11 kernel/rcu/tree_stall.h

  > 11	#include <linux/rcu_notifier.h>
    12	

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