Re: [PATCH 6/8] riscv: fpu: switch has_fpu() to riscv_has_extension_likely()

Andrew Jones
2022-10-06T13:37:13Z

On Thu, Oct 06, 2022 at 03:08:16PM +0800, Jisheng Zhang wrote:
> Switch has_fpu() from statich branch to the new helper
> riscv_has_extension_likely().
>
> Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
> ---
> arch/riscv/include/asm/switch_to.h | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/arch/riscv/include/asm/switch_to.h b/arch/riscv/include/asm/switch_to.h
> index 11463489fec6..60f8ca01d36e 100644
> --- a/arch/riscv/include/asm/switch_to.h
> +++ b/arch/riscv/include/asm/switch_to.h
> @@ -59,7 +59,8 @@ static inline void __switch_to_aux(struct task_struct *prev,
>
> static __always_inline bool has_fpu(void)
> {
> - return static_branch_likely(&riscv_isa_ext_keys[RISCV_ISA_EXT_KEY_FPU]);
> + return riscv_has_extension_likely(RISCV_ISA_EXT_f) ||
> + riscv_has_extension_likely(RISCV_ISA_EXT_d);
> }
> #else
> static __always_inline bool has_fpu(void) { return false; }
> --
> 2.37.2
>

Reviewed-by: Andrew Jones <ajones@ventanamicro.com>