Re: [PATCH V2] LoongArch: Provide kernel fpu functions

[Huacai Chen]

On Mon, Mar 6, 2023 at 11:15 AM Randy Dunlap <rdunlap@xxxxxxxxxxxxx> wrote:
>
> Hi,
>
>
> On 3/5/23 19:12, Huacai Chen wrote:
> > +void kernel_fpu_begin(void)
> > +{
> > +     if(this_cpu_read(in_kernel_fpu))
>
>         if (
> > +             return;
> > +
> > +     preempt_disable();
> > +     this_cpu_write(in_kernel_fpu, true);
> > +
> > +     if (!is_fpu_owner())
> > +             enable_fpu();
> > +     else
> > +             _save_fp(&current->thread.fpu);
> > +}
> > +EXPORT_SYMBOL(kernel_fpu_begin);
> > +
> > +void kernel_fpu_end(void)
> > +{
> > +     if(!this_cpu_read(in_kernel_fpu))
>
>         if (
>
> i.e., add a space after "if".
OK, thanks.

Huacai
>
> > +             return;
> > +
> > +     if (!is_fpu_owner())
> > +             disable_fpu();
> > +     else
> > +             _restore_fp(&current->thread.fpu);
> > +
> > +     this_cpu_write(in_kernel_fpu, false);
> > +     preempt_enable();
> > +}
> > +EXPORT_SYMBOL(kernel_fpu_end);
>
> --
> ~Randy