netdev - RE: [PATCH v4 03/11] net: mvmdio: use GENMASK for masks

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Date:   Mon, 19 Jun 2017 11:57:51 +0000
From:   David Laight <David.Laight@...LAB.COM>
To:     'Antoine Tenart' <antoine.tenart@...e-electrons.com>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "jason@...edaemon.net" <jason@...edaemon.net>,
        "andrew@...n.ch" <andrew@...n.ch>,
        "gregory.clement@...e-electrons.com" 
        <gregory.clement@...e-electrons.com>,
        "sebastian.hesselbarth@...il.com" <sebastian.hesselbarth@...il.com>,
        "f.fainelli@...il.com" <f.fainelli@...il.com>
CC:     "thomas.petazzoni@...e-electrons.com" 
        <thomas.petazzoni@...e-electrons.com>,
        "nadavh@...vell.com" <nadavh@...vell.com>,
        "mw@...ihalf.com" <mw@...ihalf.com>,
        "linux@...linux.org.uk" <linux@...linux.org.uk>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: RE: [PATCH v4 03/11] net: mvmdio: use GENMASK for masks

From: Antoine Tenart
> Sent: 14 June 2017 16:49
> Cosmetic patch to use the GENMASK helper for masks.
...
> -	ret = val & 0xFFFF;
> +	ret = val & GENMASK(15, 0);

My 2c: It isn't at all clear to me that changes like this in anyway
improve the code readability.
In some sense the '15' should be a named constant - but that just makes
it even less obvious what is going on.

	David