[ammarfaizi2-block:crng/random/jd/notifier 54/55] include/linux/notifier.h:75:22: error: field 'mutex' has incomplete type

[kernel test robot]

tree:   https://github.com/ammarfaizi2/linux-block crng/random/jd/notifier
head:   3c87f9e874ba4807cbb5473bab3eb5c2f5d716db
commit: d8ac9430b0435d0f09b5c909f80f8980183c93d1 [54/55] random: replace custom notifier chain with standard one
config: arm64-randconfig-r033-20220301 (https://download.01.org/0day-ci/archive/20220302/202203020810.W9y73VFu-lkp@xxxxxxxxx/config)
compiler: aarch64-linux-gcc (GCC) 11.2.0
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
        # https://github.com/ammarfaizi2/linux-block/commit/d8ac9430b0435d0f09b5c909f80f8980183c93d1
        git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
        git fetch --no-tags ammarfaizi2-block crng/random/jd/notifier
        git checkout d8ac9430b0435d0f09b5c909f80f8980183c93d1
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm64 prepare

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 include/linux/srcu.h:49,
                    from include/linux/notifier.h:16,
                    from include/linux/random.h:10,
                    from arch/arm64/include/asm/pointer_auth.h:7,
                    from arch/arm64/include/asm/processor.h:42,
                    from include/linux/mutex.h:19,
                    from include/linux/kernfs.h:11,
                    from include/linux/sysfs.h:16,
                    from include/linux/kobject.h:20,
                    from include/linux/of.h:17,
                    from include/linux/irqdomain.h:35,
                    from include/linux/acpi.h:13,
                    from include/acpi/apei.h:9,
                    from include/acpi/ghes.h:5,
                    from include/linux/arm_sdei.h:8,
                    from arch/arm64/kernel/asm-offsets.c:10:
>> include/linux/srcutree.h:68:22: error: field 'srcu_cb_mutex' has incomplete type
      68 |         struct mutex srcu_cb_mutex;             /* Serialize CB preparation. */
         |                      ^~~~~~~~~~~~~
>> include/linux/srcutree.h:70:22: error: field 'srcu_gp_mutex' has incomplete type
      70 |         struct mutex srcu_gp_mutex;             /* Serialize GP work. */
         |                      ^~~~~~~~~~~~~
>> include/linux/srcutree.h:78:22: error: field 'srcu_barrier_mutex' has incomplete type
      78 |         struct mutex srcu_barrier_mutex;        /* Serialize barrier ops. */
         |                      ^~~~~~~~~~~~~~~~~~
   In file included from include/linux/random.h:10,
                    from arch/arm64/include/asm/pointer_auth.h:7,
                    from arch/arm64/include/asm/processor.h:42,
                    from include/linux/mutex.h:19,
                    from include/linux/kernfs.h:11,
                    from include/linux/sysfs.h:16,
                    from include/linux/kobject.h:20,
                    from include/linux/of.h:17,
                    from include/linux/irqdomain.h:35,
                    from include/linux/acpi.h:13,
                    from include/acpi/apei.h:9,
                    from include/acpi/ghes.h:5,
                    from include/linux/arm_sdei.h:8,
                    from arch/arm64/kernel/asm-offsets.c:10:
>> include/linux/notifier.h:75:22: error: field 'mutex' has incomplete type
      75 |         struct mutex mutex;
         |                      ^~~~~
   make[2]: *** [scripts/Makefile.build:121: arch/arm64/kernel/asm-offsets.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [Makefile:1191: prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:219: __sub-make] Error 2
   make: Target 'prepare' not remade because of errors.


vim +/mutex +75 include/linux/notifier.h

e041c683412d5b Alan Stern    2006-03-27  73  
eabc069401bcf4 Alan Stern    2006-10-04  74  struct srcu_notifier_head {
eabc069401bcf4 Alan Stern    2006-10-04 @75  	struct mutex mutex;
eabc069401bcf4 Alan Stern    2006-10-04  76  	struct srcu_struct srcu;
374a8e0dc33c98 Arnd Bergmann 2010-02-24  77  	struct notifier_block __rcu *head;
eabc069401bcf4 Alan Stern    2006-10-04  78  };
eabc069401bcf4 Alan Stern    2006-10-04  79  

:::::: The code at line 75 was first introduced by commit
:::::: eabc069401bcf45bcc3f19e643017bf761780aa8 [PATCH] Add SRCU-based notifier chains

:::::: TO: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
:::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxx>

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