From: Guo Ren <guoren@xxxxxxxxxxxxxxxxx> This macro isn't used in Linux, now. Delete in include/linux/sched.h and arch's include/asm. This would confuse people who are implementing the COMPAT feature for architecture. Here is the comment by Arnd: Looking through the git history, I see commit a06db751c321 ("pagemap: check permissions and capabilities at open time") removing the last user. Signed-off-by: Guo Ren <guoren@xxxxxxxxxxxxxxxxx> Signed-off-by: Guo Ren <guoren@xxxxxxxxxx> Reviewed-by: Arnd Bergmann <arnd@xxxxxxxx> --- include/linux/sched.h | 4 ---- 1 file changed, 4 deletions(-) diff --git a/include/linux/sched.h b/include/linux/sched.h index 78c351e35fec..8e5689d06ac8 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -2166,10 +2166,6 @@ static inline bool vcpu_is_preempted(int cpu) extern long sched_setaffinity(pid_t pid, const struct cpumask *new_mask); extern long sched_getaffinity(pid_t pid, struct cpumask *mask); -#ifndef TASK_SIZE_OF -#define TASK_SIZE_OF(tsk) TASK_SIZE -#endif - #ifdef CONFIG_SMP /* Returns effective CPU energy utilization, as seen by the scheduler */ unsigned long sched_cpu_util(int cpu, unsigned long max); -- 2.25.1