Subject: Re: [PATCH RFC net-next v2 03/12] net: mdio: mdiobus_register: update validation test

From: "Russell King (Oracle)" <[email-masked]>
Date: Tue, 3 Jan 2023 10:13:55 +0000

Hi Michael,

Thanks for picking this up!

On Wed, Dec 28, 2022 at 12:07:19AM +0100, Michael Walle wrote:
> +	if (!bus || !bus->name)
> +		return -EINVAL;
> +
> +	/* An access method always needs both read and write operations */
> +	if ((bus->read && !bus->write) ||
> +	    (!bus->read && bus->write) ||
> +	    (bus->read_c45 && !bus->write_c45) ||
> +	    (!bus->read_c45 && bus->write_c45))

I wonder whether the following would be even more readable:

	if (!bus->read != !bus->write || !bus->read_c45 != !bus->write_c45)

which essentially asserts that the boolean of !method for the read and
write methods must match.

-- 
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