mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-11-01 08:58:07 +00:00
0bab9cb2d9
That logic is unused since
320100a5ff ("x86/entry: Remove the TRACE_IRQS cruft")
Remove it.
Suggested-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/YAAszZJ2GcIYZmB5@hirez.programming.kicks-ass.net
56 lines
1.1 KiB
ArmAsm
56 lines
1.1 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* Save registers before calling assembly functions. This avoids
|
|
* disturbance of register allocation in some inline assembly constructs.
|
|
* Copyright 2001,2002 by Andi Kleen, SuSE Labs.
|
|
*/
|
|
#include <linux/linkage.h>
|
|
#include "calling.h"
|
|
#include <asm/asm.h>
|
|
#include <asm/export.h>
|
|
|
|
/* rdi: arg1 ... normal C conventions. rax is saved/restored. */
|
|
.macro THUNK name, func
|
|
SYM_FUNC_START_NOALIGN(\name)
|
|
pushq %rbp
|
|
movq %rsp, %rbp
|
|
|
|
pushq %rdi
|
|
pushq %rsi
|
|
pushq %rdx
|
|
pushq %rcx
|
|
pushq %rax
|
|
pushq %r8
|
|
pushq %r9
|
|
pushq %r10
|
|
pushq %r11
|
|
|
|
call \func
|
|
jmp __thunk_restore
|
|
SYM_FUNC_END(\name)
|
|
_ASM_NOKPROBE(\name)
|
|
.endm
|
|
|
|
#ifdef CONFIG_PREEMPTION
|
|
THUNK preempt_schedule_thunk, preempt_schedule
|
|
THUNK preempt_schedule_notrace_thunk, preempt_schedule_notrace
|
|
EXPORT_SYMBOL(preempt_schedule_thunk)
|
|
EXPORT_SYMBOL(preempt_schedule_notrace_thunk)
|
|
#endif
|
|
|
|
#ifdef CONFIG_PREEMPTION
|
|
SYM_CODE_START_LOCAL_NOALIGN(__thunk_restore)
|
|
popq %r11
|
|
popq %r10
|
|
popq %r9
|
|
popq %r8
|
|
popq %rax
|
|
popq %rcx
|
|
popq %rdx
|
|
popq %rsi
|
|
popq %rdi
|
|
popq %rbp
|
|
ret
|
|
_ASM_NOKPROBE(__thunk_restore)
|
|
SYM_CODE_END(__thunk_restore)
|
|
#endif
|