Date:   Mon, 27 Dec 2021 17:49:54 -0800
From:   Jakub Kicinski <kuba@kernel.org>
To:     Joseph CHAMG <josright123@gmail.com>
Cc:     "David S . Miller" <davem@davemloft.net>,
        Rob Herring <robh+dt@kernel.org>, joseph_chang@davicom.com.tw,
        netdev@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, Andrew Lunn <andrew@lunn.ch>,
        Leon Romanovsky <leon@kernel.org>
Subject: Re: [PATCH v9, 2/2] net: Add dm9051 driver
Message-ID: <20211227174954.1411a643@kicinski-fedora-PC1C0HJN.hsd1.ca.comcast.net>
In-Reply-To: <20211227100233.8037-3-josright123@gmail.com>
References: <20211227100233.8037-1-josright123@gmail.com>
        <20211227100233.8037-3-josright123@gmail.com>
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On Mon, 27 Dec 2021 18:02:33 +0800 Joseph CHAMG wrote:
> +static inline void dm9051_phyup_lock(struct board_info *db)
> +{
> +	int val, ret;
> +
> +	mutex_lock(&db->addr_lock);
> +
> +	ret = dm9051_phy_read(db, MII_BMCR, &val);
> +	if (ret)
> +		return;
> +
> +	/* BMCR Power-up PHY */
> +	ret = dm9051_phy_write(db, MII_BMCR, val & ~0x0800);
> +	if (ret)
> +		return;
> +
> +	/* GPR Power-up PHY */
> +	dm9051_iow(db, DM9051_GPR, 0);
> +	mdelay(1); /* need for activate phyxcer */
> +
> +	mutex_unlock(&db->addr_lock);
> +}
> +
> +static inline void dm9051_phydown_lock(struct board_info *db)
> +{
> +	mutex_lock(&db->addr_lock);
> +	dm9051_iow(db, DM9051_GPR, 0x01); /* Power-Down PHY */
> +	mutex_unlock(&db->addr_lock);
> +}

Please remove the 'inline' qualifier from functions in C sources.
Compiler will know which static functions to inline these days.