[PATCH 2/4] mn10300: let exit_fpu accept a task

From: Jiri Slaby
Date: Thu Mar 24 2016 - 08:57:44 EST


We need to call exit_thread from copy_process in a fail path. Since
exit_thread on mn10300 calls exit_thread_runtime_instr, make it accept
task_struct as a parameter now.

Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
Cc: David Howells <dhowells@xxxxxxxxxx>
Cc: Koichi Yasutake <yasutake.koichi@xxxxxxxxxxxxxxxx>
Cc: linux-am33-list@xxxxxxxxxx
---
arch/mn10300/include/asm/fpu.h | 6 ++----
arch/mn10300/kernel/process.c | 2 +-
2 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/arch/mn10300/include/asm/fpu.h b/arch/mn10300/include/asm/fpu.h
index 738ff72659d5..a47e995d45f3 100644
--- a/arch/mn10300/include/asm/fpu.h
+++ b/arch/mn10300/include/asm/fpu.h
@@ -76,11 +76,9 @@ static inline void unlazy_fpu(struct task_struct *tsk)
preempt_enable();
}

-static inline void exit_fpu(void)
+static inline void exit_fpu(struct task_struct *tsk)
{
#ifdef CONFIG_LAZY_SAVE_FPU
- struct task_struct *tsk = current;
-
preempt_disable();
if (fpu_state_owner == tsk)
fpu_state_owner = NULL;
@@ -123,7 +121,7 @@ static inline void fpu_init_state(void) {}
static inline void fpu_save(struct fpu_state_struct *s) {}
static inline void fpu_kill_state(struct task_struct *tsk) {}
static inline void unlazy_fpu(struct task_struct *tsk) {}
-static inline void exit_fpu(void) {}
+static inline void exit_fpu(struct task_struct *tsk) {}
static inline void flush_fpu(void) {}
static inline int fpu_setup_sigcontext(struct fpucontext *buf) { return 0; }
static inline int fpu_restore_sigcontext(struct fpucontext *buf) { return 0; }
diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c
index 3707da583d05..74a96ccf7451 100644
--- a/arch/mn10300/kernel/process.c
+++ b/arch/mn10300/kernel/process.c
@@ -105,7 +105,7 @@ void show_regs(struct pt_regs *regs)
*/
void exit_thread(void)
{
- exit_fpu();
+ exit_fpu(current);
}

void flush_thread(void)
--
2.7.4