[PATCH v2 1/2] powerpc/math-emu: move the flush FPU state function into do_mathemu

[Benjamin Herrenschmidt]

On Fri, 2013-07-12 at 13:36 +0800, Kevin Hao wrote:
> +       /*
> +        * If we support a HW FPU, we need to ensure the FP state
> +        * if flushed into the thread_struct before attempting
> +        * emulation
> +        */
> +#ifdef CONFIG_PPC_FPU
> +       flush_fp_to_thread(current);
> +#endif
> +

While at it, care to send a patch that defined an empty
flush_fp_to_thread() in the header instead ?

ie, switch_to.h

#ifdef CONFIG_PPC_FPU
extern void flush_fp_to_thread(struct task-struct *);
#else
static inline void flush_fp_to_thread(struct task-struct *) { };
#endif

And get rid of the ifdef's here (and elsewhere if any) ?

Thanks !

Cheers,
Ben.