task_stack.h: remove obsolete __HAVE_ARCH_KSTACK_END check

soleen · akpm00 · commit db80bd2cea1b · 2025-05-11T17:54:04.000-07:00
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
@@ -106,14 +106,12 @@ 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:
 	 * Some APM bios versions misalign the stack
 	 */
 	return !(((unsigned long)addr+sizeof(void*)-1) & (THREAD_SIZE-sizeof(void*)));
 }
-#endif
 
 #endif /* _LINUX_SCHED_TASK_STACK_H */

Original file line number	Diff line number	Diff line change
`@@ -106,14 +106,12 @@ static inline unsigned long stack_not_used(struct task_struct *p)`
`106`	`106`	`#endif`
`107`	`107`	`extern void set_task_stack_end_magic(struct task_struct *tsk);`
`108`	`108`
`109`		`-#ifndef __HAVE_ARCH_KSTACK_END`
`110`	`109`	`static inline int kstack_end(void *addr)`
`111`	`110`	`{`
`112`	`111`	`/* Reliable end of stack detection:`
`113`	`112`	`* Some APM bios versions misalign the stack`
`114`	`113`	`*/`
`115`	`114`	`return !(((unsigned long)addr+sizeof(void)-1) & (THREAD_SIZE-sizeof(void)));`
`116`	`115`	`}`
`117`		`-#endif`
`118`	`116`
`119`	`117`	`#endif /* _LINUX_SCHED_TASK_STACK_H */`