From: Ralf Baechle sysdev.h uses THIS_MODULE so should include . [akpm@linux-foundation.org: couple of fixes] Signed-off-by: Ralf Baechle Cc: Andi Kleen Signed-off-by: Andrew Morton --- arch/s390/kernel/time.c | 1 + include/linux/cpu.h | 3 +++ include/linux/sched.h | 3 --- include/linux/sysdev.h | 1 + 4 files changed, 5 insertions(+), 3 deletions(-) diff -puN arch/s390/kernel/time.c~linux-sysdevh-needs-to-include-linux-moduleh arch/s390/kernel/time.c --- a/arch/s390/kernel/time.c~linux-sysdevh-needs-to-include-linux-moduleh +++ a/arch/s390/kernel/time.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include #include diff -puN include/linux/cpu.h~linux-sysdevh-needs-to-include-linux-moduleh include/linux/cpu.h --- a/include/linux/cpu.h~linux-sysdevh-needs-to-include-linux-moduleh +++ a/include/linux/cpu.h @@ -41,6 +41,9 @@ extern void cpu_remove_sysdev_attr(struc extern int cpu_add_sysdev_attr_group(struct attribute_group *attrs); extern void cpu_remove_sysdev_attr_group(struct attribute_group *attrs); +extern struct sysdev_attribute attr_sched_mc_power_savings; +extern struct sysdev_attribute attr_sched_smt_power_savings; +extern int sched_create_sysfs_power_savings_entries(struct sysdev_class *cls); #ifdef CONFIG_HOTPLUG_CPU extern void unregister_cpu(struct cpu *cpu); diff -puN include/linux/sched.h~linux-sysdevh-needs-to-include-linux-moduleh include/linux/sched.h --- a/include/linux/sched.h~linux-sysdevh-needs-to-include-linux-moduleh +++ a/include/linux/sched.h @@ -1641,10 +1641,7 @@ static inline void arch_pick_mmap_layout extern long sched_setaffinity(pid_t pid, cpumask_t new_mask); extern long sched_getaffinity(pid_t pid, cpumask_t *mask); -#include extern int sched_mc_power_savings, sched_smt_power_savings; -extern struct sysdev_attribute attr_sched_mc_power_savings, attr_sched_smt_power_savings; -extern int sched_create_sysfs_power_savings_entries(struct sysdev_class *cls); extern void normalize_rt_tasks(void); diff -puN include/linux/sysdev.h~linux-sysdevh-needs-to-include-linux-moduleh include/linux/sysdev.h --- a/include/linux/sysdev.h~linux-sysdevh-needs-to-include-linux-moduleh +++ a/include/linux/sysdev.h @@ -22,6 +22,7 @@ #define _SYSDEV_H_ #include +#include #include _