netdev - Re: [PATCH net-next] mdio_bus: Remove unneeded gpiod NULL check

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Message-ID: <CAOMZO5ABD9iasv67ehcpTzcjU-iD9=8vQ2vM7Gwc4-v9pnUt-Q@mail.gmail.com>
Date:   Tue, 18 Jul 2017 09:39:48 -0300
From:   Fabio Estevam <festevam@...il.com>
To:     Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Fabio Estevam <fabio.estevam@....com>
Subject: Re: [PATCH net-next] mdio_bus: Remove unneeded gpiod NULL check

On Tue, Jul 18, 2017 at 6:56 AM, Sergei Shtylyov
<sergei.shtylyov@...entembedded.com> wrote:

>    Won't this result in kernel WARNING when GPIO is disabled?

Not sure if I understood your point, but gpiod_set_value_cansleep() is
a no-op when the gpiod is NULL.