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

From: kernel test robot
Date: Tue Mar 01 2022 - 21:51:48 EST


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
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