kernel/cgroup/legacy_freezer.c:353:35: error: passing argument 1 of 'static_key_slow_inc_cpuslocked' from incompatible pointer type [-Werror=incompatible-pointer-types] kernel/cgroup/legacy_freezer.c:364:36: error: passing argument 1 of 'static_key_slow_dec_cpuslocked' from incompatible pointer type [-Werror=incompatible-pointer-types] kernel/cgroup/legacy_freezer.c:382:2: error: implicit declaration of function 'cpus_read_lock'; did you mean 'rcu_read_lock'? [-Werror=implicit-function-declaration] kernel/cgroup/legacy_freezer.c:411:2: error: implicit declaration of function 'cpus_read_unlock'; did you mean 'rcu_read_unlock'? [-Werror=implicit-function-declaration]