linux-kernel - Re: [PATCH net v2] net: phy: phy driver features are mandatory

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Date:   Sat, 19 Jan 2019 10:04:46 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     camelia.groza@....com
Cc:     andrew@...n.ch, f.fainelli@...il.com, hkallweit1@...il.com,
        oss@...error.net, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net v2] net: phy: phy driver features are mandatory

From: Camelia Groza <camelia.groza@....com>
Date: Thu, 17 Jan 2019 14:22:36 +0200

> Since phy driver features became a link_mode bitmap, phy drivers that
> don't have a list of features configured will cause the kernel to crash
> when probed.
> 
> Prevent the phy driver from registering if the features field is missing.
> 
> Fixes: 719655a14971 ("net: phy: Replace phy driver features u32 with link_mode bitmap")
> Reported-by: Scott Wood <oss@...error.net>
> Signed-off-by: Camelia Groza <camelia.groza@....com>
> ---
> v2: Print the name of the driver that has missing features.
> 
> This patch should be merged to 4.20 stable.

Applied and queued up for -stable.