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arch: remove unused macro/function thread_saved_pc()

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The only user of thread_saved_pc() in non-arch-specific code was removed
in commit 8243d55977 ("sched/core: Remove pointless printout in
sched_show_task()").  Remove the implementations as well.

Some architectures use thread_saved_pc() in their arch-specific code.
Leave their thread_saved_pc() intact.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Tobias Klauser
2017-06-28 15:30:02 +02:00
committed by Linus Torvalds
parent e547204f1f
commit 6474924e2b
41 changed files with 0 additions and 270 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
arch/sparc/include/asm/processor_32.h
View File

@@ -67,9 +67,6 @@ struct thread_struct {
.current_ds = KERNEL_DS, \
}
/* Return saved PC of a blocked thread. */
unsigned long thread_saved_pc(struct task_struct *t);
/* Do necessary setup to start up a newly executed thread. */
static inline void start_thread(struct pt_regs * regs, unsigned long pc,
unsigned long sp)

2
arch/sparc/include/asm/processor_64.h
View File

@@ -89,9 +89,7 @@ struct thread_struct {
#include <linux/types.h>
#include <asm/fpumacro.h>
/* Return saved PC of a blocked thread. */
struct task_struct;
unsigned long thread_saved_pc(struct task_struct *);
/* On Uniprocessor, even in RMO processes see TSO semantics */
#ifdef CONFIG_SMP

8
arch/sparc/kernel/process_32.c
View File

@@ -176,14 +176,6 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp)
printk("\n");
}
/*
* Note: sparc64 has a pretty intricated thread_saved_pc, check it out.
*/
unsigned long thread_saved_pc(struct task_struct *tsk)
{
return task_thread_info(tsk)->kpc;
}
/*
* Free current thread data structures etc..
*/

19
arch/sparc/kernel/process_64.c
View File

@@ -400,25 +400,6 @@ core_initcall(sparc_sysrq_init);
#endif
unsigned long thread_saved_pc(struct task_struct *tsk)
{
struct thread_info *ti = task_thread_info(tsk);
unsigned long ret = 0xdeadbeefUL;
if (ti && ti->ksp) {
unsigned long *sp;
sp = (unsigned long *)(ti->ksp + STACK_BIAS);
if (((unsigned long)sp & (sizeof(long) - 1)) == 0UL &&
sp[14]) {
unsigned long *fp;
fp = (unsigned long *)(sp[14] + STACK_BIAS);
if (((unsigned long)fp & (sizeof(long) - 1)) == 0UL)
ret = fp[15];
}
}
return ret;
}
/* Free current thread data structures etc.. */
void exit_thread(struct task_struct *tsk)
{