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From: Russell King - ARM Linux admin <linux@armlinux.org.uk>
To: Chris Packham <chris.packham@alliedtelesis.co.nz>
Cc: andrew@lunn.ch, vivien.didelot@gmail.com, f.fainelli@gmail.com,
	olteanv@gmail.com, davem@davemloft.net, kuba@kernel.org,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 3/3] net: dsa: mv88e6xxx: Support serdes ports on MV88E6123/6131
Date: Tue, 20 Oct 2020 11:18:51 +0100	[thread overview]
Message-ID: <20201020101851.GC1551@shell.armlinux.org.uk> (raw)
In-Reply-To: <20201020034558.19438-4-chris.packham@alliedtelesis.co.nz>

On Tue, Oct 20, 2020 at 04:45:58PM +1300, Chris Packham wrote:
> +void mv88e6123_serdes_get_regs(struct mv88e6xxx_chip *chip, int port, void *_p)
> +{
> +	u16 *p = _p;
> +	u16 reg;
> +	int i;
> +
> +	if (mv88e6xxx_serdes_get_lane(chip, port) == 0)
> +		return;
> +
> +	for (i = 0; i < 26; i++) {
> +		mv88e6xxx_phy_read(chip, port, i, &reg);

Shouldn't this deal with a failed read in some way, rather than just
assigning the last or possibly uninitialised value to p[i] ?

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!

  reply	other threads:[~2020-10-20 10:19 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-20  3:45 [PATCH v3 0/3] net: dsa: mv88e6xxx: serdes link without phy Chris Packham
2020-10-20  3:45 ` [PATCH v3 1/3] net: dsa: mv88e6xxx: Don't force link when using in-band-status Chris Packham
2020-10-20 10:15   ` Russell King - ARM Linux admin
2020-10-20 13:49     ` Marek Behun
2020-10-20 14:05       ` Andrew Lunn
2020-10-20 14:15         ` Russell King - ARM Linux admin
2020-10-20 14:51           ` Marek Behun
2020-10-20 14:58             ` Andrew Lunn
2020-10-20 21:04               ` Chris Packham
2020-10-20 21:15                 ` Andrew Lunn
2020-10-20 21:06             ` Chris Packham
2020-10-20 21:18               ` Russell King - ARM Linux admin
2020-10-21  2:20                 ` Chris Packham
2020-10-20  3:45 ` [PATCH v3 2/3] net: dsa: mv88e6xxx: Support serdes ports on MV88E6097/6095/6185 Chris Packham
2020-10-20  3:45 ` [PATCH v3 3/3] net: dsa: mv88e6xxx: Support serdes ports on MV88E6123/6131 Chris Packham
2020-10-20 10:18   ` Russell King - ARM Linux admin [this message]
2020-10-20 21:24     ` Chris Packham
2020-10-20 21:34       ` Russell King - ARM Linux admin

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