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From: Florian Fainelli <f.fainelli@gmail.com>
To: David Binderman <dcb314@hotmail.com>,
	"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	dmurphy@ti.com
Subject: Re: drivers/net/phy/dp83867.c:167: possible bad if ?
Date: Mon, 20 Jul 2015 10:28:38 -0700	[thread overview]
Message-ID: <55AD2FC6.60508@gmail.com> (raw)
In-Reply-To: <DUB128-W6216BE4A8E21E94EEB06DE9C850@phx.gbl>

Adding Dan,

On 20/07/15 05:37, David Binderman wrote:
> Hello there,
> 
> drivers/net/phy/dp83867.c:167:57: warning: logical ‘or’ of collectively exhaustive tests is always true [-Wlogical-op]
> 
> Source code is
> 
>     if ((phydev->interface>= PHY_INTERFACE_MODE_RGMII_ID) ||
>         (phydev->interface <= PHY_INTERFACE_MODE_RGMII_RXID)) {
> 
> Maybe
> 
>     if ((phydev->interface>= PHY_INTERFACE_MODE_RGMII_ID) &&
>         (phydev->interface <= PHY_INTERFACE_MODE_RGMII_RXID)) {

Sounds like the former is the intended comparison that will make sure
that phydev->interface is between MODE_RGMII_ID and MODE_RGMII_RXID, and
not below or after.
-- 
Florian

  reply	other threads:[~2015-07-20 17:30 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-20 12:37 drivers/net/phy/dp83867.c:167: possible bad if ? David Binderman
2015-07-20 17:28 ` Florian Fainelli [this message]
2015-07-20 17:37   ` Dan Murphy
2015-07-20 17:40     ` Florian Fainelli
2015-07-20 17:52       ` Dan Murphy
2015-07-20 18:00         ` David Binderman

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