linux-kernel - Re: [PATCH net-next 2/2] drivers: net: Remove device_node checks with of_mdiobus

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Date:   Tue, 15 May 2018 17:57:14 -0500
From:   Grygorii Strashko <grygorii.strashko@...com>
To:     Florian Fainelli <f.fainelli@...il.com>, <netdev@...r.kernel.org>
CC:     Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...oirfairelinux.com>,
        "David S. Miller" <davem@...emloft.net>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Fugang Duan <fugang.duan@....com>,
        Sergei Shtylyov <sergei.shtylyov@...entembedded.com>,
        Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Jose Abreu <joabreu@...opsys.com>,
        Woojung Huh <woojung.huh@...rochip.com>,
        Microchip Linux Driver Support <UNGLinuxDriver@...rochip.com>,
        Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        Antoine Tenart <antoine.tenart@...e-electrons.com>,
        Tobias Jordan <Tobias.Jordan@...ktrobit.com>,
        Russell King <rmk+kernel@...linux.org.uk>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
        Niklas Söderlund 
        <niklas.soderlund+renesas@...natech.se>,
        Simon Horman <horms+renesas@...ge.net.au>,
        Maxim Uvarov <muvarov@...il.com>, Sekhar Nori <nsekhar@...com>,
        open list <linux-kernel@...r.kernel.org>,
        "open list:RENESAS ETHERNET DRIVERS" 
        <linux-renesas-soc@...r.kernel.org>,
        "open list:TI ETHERNET SWITCH DRIVER (CPSW)" 
        <linux-omap@...r.kernel.org>,
        "open list:USB NETWORKING DRIVERS" <linux-usb@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE" 
        <devicetree@...r.kernel.org>
Subject: Re: [PATCH net-next 2/2] drivers: net: Remove device_node checks with
 of_mdiobus_register()



On 05/15/2018 04:59 PM, Florian Fainelli wrote:
> A number of drivers have the following pattern:
> 
> if (np)
> 	of_mdiobus_register()
> else
> 	mdiobus_register()
> 
> which the implementation of of_mdiobus_register() now takes care of.
> Remove that pattern in drivers that strictly adhere to it.
> 
> Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
> ---
>   drivers/net/dsa/bcm_sf2.c                         |  8 ++------
>   drivers/net/dsa/mv88e6xxx/chip.c                  |  5 +----
>   drivers/net/ethernet/cadence/macb_main.c          | 12 +++---------
>   drivers/net/ethernet/freescale/fec_main.c         |  8 ++------
>   drivers/net/ethernet/marvell/mvmdio.c             |  5 +----
>   drivers/net/ethernet/renesas/sh_eth.c             | 11 +++--------
>   drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c |  5 +----
>   drivers/net/ethernet/ti/davinci_mdio.c            |  6 ++----
>   drivers/net/phy/mdio-gpio.c                       |  6 +-----
>   drivers/net/phy/mdio-mscc-miim.c                  |  6 +-----
>   drivers/net/usb/lan78xx.c                         |  7 ++-----
>   11 files changed, 19 insertions(+), 60 deletions(-)
> 

...

>   		goto bus_register_fail;
> diff --git a/drivers/net/ethernet/ti/davinci_mdio.c b/drivers/net/ethernet/ti/davinci_mdio.c
> index 98a1c97fb95e..e720244e7f71 100644
> --- a/drivers/net/ethernet/ti/davinci_mdio.c
> +++ b/drivers/net/ethernet/ti/davinci_mdio.c
> @@ -431,10 +431,8 @@ static int davinci_mdio_probe(struct platform_device *pdev)
>   	 */
>   	if (dev->of_node && of_get_child_count(dev->of_node)) {

It causes build error due to "{" above.

>   		data->skip_scan = true;
> -		ret = of_mdiobus_register(data->bus, dev->of_node);
> -	} else {
> -		ret = mdiobus_register(data->bus);
> -	}
> +
> +	ret = of_mdiobus_register(data->bus, dev->of_node);
>   	if (ret)
>   		goto bail_out;
>   
> diff --git a/drivers/net/phy/mdio-gpio.c b/drivers/net/phy/mdio-gpio.c
> index b501221819e1..4e4c8daf44c3 100644
> --- a/drivers/net/phy/mdio-gpio.c
> +++ b/drivers/net/phy/mdio-gpio.c
> @@ -179,11 +179,7 @@ static int mdio_gpio_probe(struct platform_device *pdev)

[...]

-- 
regards,
-grygorii