task_stack.h: remove obsolete __HAVE_ARCH_KSTACK_END check

Remove __HAVE_ARCH_KSTACK_END as it has been obsolete since removal of
metag architecture in v4.17.

Link: https://lkml.kernel.org/r/20250403-kstack-end-v1-1-7798e71f34d1@linaro.org
Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com>
Link: https://lore.kernel.org/20240311164638.2015063-2-pasha.tatashin@soleen.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/include/linux/sched/task_stack.h b/include/linux/sched/task_stack.h
index cffad65..85c5a63 100644 (file)
--- a/include/linux/sched/task_stack.h
+++ b/include/linux/sched/task_stack.h
@@ -106,7 +106,6 @@ static inline unsigned long stack_not_used(struct task_struct *p)
 #endif
 extern void set_task_stack_end_magic(struct task_struct *tsk);
 
-#ifndef __HAVE_ARCH_KSTACK_END
 static inline int kstack_end(void *addr)
 {
        /* Reliable end of stack detection:
@@ -114,6 +113,5 @@ static inline int kstack_end(void *addr)
         */
        return !(((unsigned long)addr+sizeof(void*)-1) & (THREAD_SIZE-sizeof(void*)));
 }
-#endif
 
 #endif /* _LINUX_SCHED_TASK_STACK_H */