powerpc/kernel: Make function __giveup_fpu() static

__giveup_fpu() is never called outside process.c, so it can be static.
That also means we don't need an empty definition in switch_to.h

Signed-off-by: Mathieu Malaterre <malat@debian.org>
[mpe: Also drop the empty version, rewrite change log]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

diff --git a/arch/powerpc/include/asm/switch_to.h b/arch/powerpc/include/asm/switch_to.h
index c3ca42c..be8c9fa 100644 (file)
--- a/arch/powerpc/include/asm/switch_to.h
+++ b/arch/powerpc/include/asm/switch_to.h
@@ -35,7 +35,6 @@ static inline void disable_kernel_fp(void)
        msr_check_and_clear(MSR_FP);
 }
 #else
-static inline void __giveup_fpu(struct task_struct *t) { }
 static inline void save_fpu(struct task_struct *t) { }
 static inline void flush_fp_to_thread(struct task_struct *t) { }
 #endif

diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 1738c41..ec4f363 100644 (file)
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -173,7 +173,7 @@ void __msr_check_and_clear(unsigned long bits)
 EXPORT_SYMBOL(__msr_check_and_clear);
 
 #ifdef CONFIG_PPC_FPU
-void __giveup_fpu(struct task_struct *tsk)
+static void __giveup_fpu(struct task_struct *tsk)
 {
        unsigned long msr;
 
@@ -556,7 +556,7 @@ void restore_math(struct pt_regs *regs)
        regs->msr = msr;
 }
 
-void save_all(struct task_struct *tsk)
+static void save_all(struct task_struct *tsk)
 {
        unsigned long usermsr;