Re: [PATCH v3 07/13] riscv: fpu: switch has_fpu() to riscv_has_extension_likely()

Conor Dooley
2023-01-12T22:09:01Z

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On Thu, Jan 12, 2023 at 01:10:21AM +0800, Jisheng Zhang wrote:
> Switch has_fpu() from statich branch to the new helper

s/statich/static

> riscv_has_extension_likely().
>
> Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
> Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
> Reviewed-by: Heiko Stuebner <heiko@sntech.de>

Modulo whatever psuedo-cpufeature shenanigans require renaming the
function, you can tack my name onto this list also...
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>

Thanks,
Conor.

> ---
> 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; }
> --
> 2.38.1
>
>
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