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Message-ID: <369bce8101f2db6685c0e2446976eb7ea16510eb.camel@xry111.site>
Subject: Ping: [PATCH] LoongArch: Slightly clean up drdtime
From:   Xi Ruoyao <xry111@xry111.site>
To:     Huacai Chen <chenhuacai@kernel.org>,
        WANG Xuerui <kernel@xen0n.name>
Cc:     loongarch@lists.linux.dev, linux-kernel@vger.kernel.org
Date:   Tue, 05 Dec 2023 16:01:11 +0800
In-Reply-To: <20231126121727.47303-2-xry111@xry111.site>
References: <20231126121727.47303-2-xry111@xry111.site>
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Ping.

On Sun, 2023-11-26 at 20:17 +0800, Xi Ruoyao wrote:
> As we are just discarding the stable clock ID, simply write it into
> $zero instead of allocating a temporary register.
>=20
> Signed-off-by: Xi Ruoyao <xry111@xry111.site>
> ---
> =C2=A0arch/loongarch/include/asm/loongarch.h | 5 ++---
> =C2=A01 file changed, 2 insertions(+), 3 deletions(-)
>=20
> diff --git a/arch/loongarch/include/asm/loongarch.h b/arch/loongarch/incl=
ude/asm/loongarch.h
> index 9b4957cefa8a..46366e783c84 100644
> --- a/arch/loongarch/include/asm/loongarch.h
> +++ b/arch/loongarch/include/asm/loongarch.h
> @@ -1098,12 +1098,11 @@
> =C2=A0
> =C2=A0static __always_inline u64 drdtime(void)
> =C2=A0{
> -	int rID =3D 0;
> =C2=A0	u64 val =3D 0;
> =C2=A0
> =C2=A0	__asm__ __volatile__(
> -		"rdtime.d %0, %1 \n\t"
> -		: "=3Dr"(val), "=3Dr"(rID)
> +		"rdtime.d %0, $zero\n\t"
> +		: "=3Dr"(val)
> =C2=A0		:
> =C2=A0		);
> =C2=A0	return val;

--=20
Xi Ruoyao <xry111@xry111.site>
School of Aerospace Science and Technology, Xidian University