linux-kernel - Re: [PATCH 4.19 006/103] net: phy: phy driver features are mandatory

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Message-ID: <20190129170326.GE13334@lunn.ch>
Date:   Tue, 29 Jan 2019 18:03:26 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Camelia Alexandra Groza <camelia.groza@....com>,
        Holger Hoffstätte 
        <holger@...lied-asynchrony.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>,
        Scott Wood <oss@...error.net>,
        "David S. Miller" <davem@...emloft.net>,
        Heiner Kallweit <hkallweit1@...il.com>
Subject: Re: [PATCH 4.19 006/103] net: phy: phy driver features are mandatory

> > Hi
> > 
> > This points to an issue with the Generic 10G PHY driver. The following patch seems to be missing from the 4.19 stable tree and should be merged:
> > f802912 net: phy: genphy_10g_driver: Avoid NULL pointer dereference
> 
> But that patch says it:
> Fixes: 719655a14971 ("net: phy: Replace phy driver features u32 with link_mode bitmap")
> 
> Which is not in 4.19.y, it showed up in 4.20.
> 
> Ah, wait, I think that there was a patch backported to the 4.19.y queue
> that should not have, specifically:
> 	3e64cf7a435e ("net: phy: phy driver features are mandatory")
> which said it too fixes:
> 	719655a14971 ("net: phy: Replace phy driver features u32 with link_mode bitmap")

Hi Greg

None of these patches should be backported to v4.19. All the link mode
and features stuff is v4.20 and later.

Thanks
	Andrew