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Subject[PATCH 05/16] x86, asmlinkage: Make 32bit/64bit __switch_to visible
Date
From: Andi Kleen <ak@linux.intel.com>

This function is called from inline assembler, so has to be visible.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
arch/x86/include/asm/switch_to.h | 4 ++--
arch/x86/kernel/process_32.c | 2 +-
arch/x86/kernel/process_64.c | 2 +-
3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/include/asm/switch_to.h b/arch/x86/include/asm/switch_to.h
index 4ec45b3..d7f3b3b 100644
--- a/arch/x86/include/asm/switch_to.h
+++ b/arch/x86/include/asm/switch_to.h
@@ -2,8 +2,8 @@
#define _ASM_X86_SWITCH_TO_H

struct task_struct; /* one of the stranger aspects of C forward declarations */
-struct task_struct *__switch_to(struct task_struct *prev,
- struct task_struct *next);
+__visible struct task_struct *__switch_to(struct task_struct *prev,
+ struct task_struct *next);
struct tss_struct;
void __switch_to_xtra(struct task_struct *prev_p, struct task_struct *next_p,
struct tss_struct *tss);
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index f8adefc..884f98f 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -247,7 +247,7 @@ EXPORT_SYMBOL_GPL(start_thread);
* the task-switch, and shows up in ret_from_fork in entry.S,
* for example.
*/
-__notrace_funcgraph struct task_struct *
+__visible __notrace_funcgraph struct task_struct *
__switch_to(struct task_struct *prev_p, struct task_struct *next_p)
{
struct thread_struct *prev = &prev_p->thread,
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 05646ba..6e8c1d0 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -274,7 +274,7 @@ void start_thread_ia32(struct pt_regs *regs, u32 new_ip, u32 new_sp)
* Kprobes not supported here. Set the probe on schedule instead.
* Function graph tracer not supported too.
*/
-__notrace_funcgraph struct task_struct *
+__visible __notrace_funcgraph struct task_struct *
__switch_to(struct task_struct *prev_p, struct task_struct *next_p)
{
struct thread_struct *prev = &prev_p->thread;
--
1.8.3.1


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