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powerpc: Remove the empty giveup_fpu() function on 32bit kernel

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Instead of implementing an empty giveup_fpu() function for each
32bit processor type, replace them with an unique empty inline
function.

Signed-off-by: Kevin Hao <haokexin@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Kevin Hao
2013-07-14 17:02:06 +08:00
committed by Benjamin Herrenschmidt
parent 037f0eed57
commit 5f20be4478
6 changed files with 4 additions and 33 deletions
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3
arch/powerpc/include/asm/switch_to.h
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@@ -16,7 +16,6 @@ struct thread_struct;
extern struct task_struct *_switch(struct thread_struct *prev,
struct thread_struct *next);
extern void giveup_fpu(struct task_struct *);
extern void load_up_fpu(void);
extern void enable_kernel_fp(void);
extern void enable_kernel_altivec(void);
@@ -38,8 +37,10 @@ static inline void discard_lazy_cpu_state(void)
#ifdef CONFIG_PPC_FPU
extern void flush_fp_to_thread(struct task_struct *);
extern void giveup_fpu(struct task_struct *);
#else
static inline void flush_fp_to_thread(struct task_struct *t) { }
static inline void giveup_fpu(struct task_struct *t) { }
#endif
#ifdef CONFIG_ALTIVEC