From: Dan Carpenter <dan.carpenter@oracle.com>
To: kernel-janitors@vger.kernel.org
Subject: re: phy: micrel: Add ethtool statistics counters
Date: Mon, 04 Jan 2016 21:15:45 +0000 [thread overview]
Message-ID: <20160104211545.GA9452@mwanda> (raw)
Hello Andrew Lunn,
The patch 2b2427d06426: "phy: micrel: Add ethtool statistics
counters" from Dec 30, 2015, leads to the following static checker
warning:
drivers/net/phy/micrel.c:609 kszphy_get_stat()
warn: unsigned 'val' is never less than zero.
drivers/net/phy/micrel.c
602 static u64 kszphy_get_stat(struct phy_device *phydev, int i)
603 {
604 struct kszphy_hw_stat stat = kszphy_hw_stats[i];
605 struct kszphy_priv *priv = phydev->priv;
606 u64 val;
607
608 val = phy_read(phydev, stat.reg);
609 if (val < 0) {
^^^^^^^
Unpossible!
610 val = UINT64_MAX;
611 } else {
612 val = val & ((1 << stat.bits) - 1);
613 priv->stats[i] += val;
614 val = priv->stats[i];
615 }
616
617 return val;
618 }
regards,
dan carpenter
next reply other threads:[~2016-01-04 21:15 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-04 21:15 Dan Carpenter [this message]
2016-01-04 21:20 ` phy: micrel: Add ethtool statistics counters Andrew Lunn
2016-01-04 22:20 ` Dan Carpenter
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