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arch: remove unused *_segments() macros/functions

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Some architectures define the no-op macros/functions copy_segments,
release_segments and forget_segments. These are used nowhere in the
tree, so removed them.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Vineet Gupta <vgupta@synopsys.com>   [for arch/arc]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Tobias Klauser 2017-09-22 09:42:42 +02:00 committed by Linus Torvalds
parent 0a8abd97dc
commit c17c02040b
10 changed files with 0 additions and 51 deletions
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3
arch/arc/include/asm/processor.h
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@ -78,9 +78,6 @@ struct task_struct;
#endif
#define copy_segments(tsk, mm) do { } while (0)
#define release_segments(mm) do { } while (0)
#define KSTK_EIP(tsk) (task_pt_regs(tsk)->ret)
#define KSTK_ESP(tsk) (task_pt_regs(tsk)->sp)

3
arch/c6x/include/asm/processor.h
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@ -92,9 +92,6 @@ static inline void release_thread(struct task_struct *dead_task)
{
}
#define copy_segments(tsk, mm) do { } while (0)
#define release_segments(mm) do { } while (0)
/*
* saved kernel SP and DP of a blocked thread.
*/

4
arch/frv/include/asm/processor.h
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@ -92,10 +92,6 @@ static inline void release_thread(struct task_struct *dead_task)
extern asmlinkage void save_user_regs(struct user_context *target);
extern asmlinkage void *restore_user_regs(const struct user_context *target, ...);
#define copy_segments(tsk, mm) do { } while (0)
#define release_segments(mm) do { } while (0)
#define forget_segments() do { } while (0)
unsigned long get_wchan(struct task_struct *p);
#define KSTK_EIP(tsk) ((tsk)->thread.frame0->pc)

8
arch/m32r/include/asm/processor.h
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@ -118,14 +118,6 @@ struct mm_struct;
/* Free all resources held by a thread. */
extern void release_thread(struct task_struct *);
/* Copy and release all segment info associated with a VM */
extern void copy_segments(struct task_struct *p, struct mm_struct * mm);
extern void release_segments(struct mm_struct * mm);
/* Copy and release all segment info associated with a VM */
#define copy_segments(p, mm) do { } while (0)
#define release_segments(mm) do { } while (0)
unsigned long get_wchan(struct task_struct *p);
#define KSTK_EIP(tsk) ((tsk)->thread.lr)
#define KSTK_ESP(tsk) ((tsk)->thread.sp)

3
arch/metag/include/asm/processor.h
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@ -131,9 +131,6 @@ static inline void release_thread(struct task_struct *dead_task)
{
}
#define copy_segments(tsk, mm) do { } while (0)
#define release_segments(mm) do { } while (0)
/*
* Return saved PC of a blocked thread.
*/

12
arch/mn10300/kernel/process.c
View File

@ -59,10 +59,6 @@ void arch_cpu_idle(void)
}
#endif
void release_segments(struct mm_struct *mm)
{
}
void machine_restart(char *cmd)
{
#ifdef CONFIG_KERNEL_DEBUGGER
@ -112,14 +108,6 @@ void release_thread(struct task_struct *dead_task)
{
}
/*
* we do not have to muck with descriptors here, that is
* done in switch_mm() as needed.
*/
void copy_segments(struct task_struct *p, struct mm_struct *new_mm)
{
}
/*
* this gets called so that we can store lazy state into memory and copy the
* current task into the new thread.

4
arch/sh/include/asm/processor_32.h
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@ -136,10 +136,6 @@ extern void start_thread(struct pt_regs *regs, unsigned long new_pc, unsigned lo
/* Free all resources held by a thread. */
extern void release_thread(struct task_struct *);
/* Copy and release all segment info associated with a VM */
#define copy_segments(p, mm) do { } while(0)
#define release_segments(mm) do { } while(0)
/*
* FPU lazy state save handling.
*/

4
arch/sh/include/asm/processor_64.h
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@ -170,10 +170,6 @@ struct mm_struct;
/* Free all resources held by a thread. */
extern void release_thread(struct task_struct *);
/* Copy and release all segment info associated with a VM */
#define copy_segments(p, mm) do { } while (0)
#define release_segments(mm) do { } while (0)
#define forget_segments() do { } while (0)
/*
* FPU lazy state save handling.
*/

5
arch/um/include/asm/processor-generic.h
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@ -58,11 +58,6 @@ static inline void release_thread(struct task_struct *task)
{
}
static inline void mm_copy_segments(struct mm_struct *from_mm,
struct mm_struct *new_mm)
{
}
#define init_stack (init_thread_union.stack)
/*

5
arch/xtensa/include/asm/processor.h
View File

@ -208,11 +208,6 @@ struct mm_struct;
/* Free all resources held by a thread. */
#define release_thread(thread) do { } while(0)
/* Copy and release all segment info associated with a VM */
#define copy_segments(p, mm) do { } while(0)
#define release_segments(mm) do { } while(0)
#define forget_segments() do { } while (0)
extern unsigned long get_wchan(struct task_struct *p);
#define KSTK_EIP(tsk) (task_pt_regs(tsk)->pc)