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Date: Tue, 31 Mar 2020 10:09:39 -0700 (PDT) From: David Miller <davem@...emloft.net> To: rmk+kernel@...linux.org.uk Cc: andrew@...n.ch, netdev@...r.kernel.org, f.fainelli@...il.com, ioana.ciornei@....com, olteanv@...il.com, vivien.didelot@...il.com, kuba@...nel.org Subject: Re: [PATCH net-next] net: dsa: fix oops while probing Marvell DSA switches From: Russell King <rmk+kernel@...linux.org.uk> Date: Tue, 31 Mar 2020 15:17:36 +0100 > Fix an oops in dsa_port_phylink_mac_change() caused by a combination > of a20f997010c4 ("net: dsa: Don't instantiate phylink for CPU/DSA > ports unless needed") and the net-dsa-improve-serdes-integration > series of patches 65b7a2c8e369 ("Merge branch > 'net-dsa-improve-serdes-integration'"). > > Unable to handle kernel NULL pointer dereference at virtual address 00000124 > pgd = c0004000 > [00000124] *pgd=00000000 > Internal error: Oops: 805 [#1] SMP ARM > Modules linked in: tag_edsa spi_nor mtd xhci_plat_hcd mv88e6xxx(+) xhci_hcd armada_thermal marvell_cesa dsa_core ehci_orion libdes phy_armada38x_comphy at24 mcp3021 sfp evbug spi_orion sff mdio_i2c > CPU: 1 PID: 214 Comm: irq/55-mv88e6xx Not tainted 5.6.0+ #470 > Hardware name: Marvell Armada 380/385 (Device Tree) > PC is at phylink_mac_change+0x10/0x88 > LR is at mv88e6352_serdes_irq_status+0x74/0x94 [mv88e6xxx] > > Signed-off-by: Russell King <rmk+kernel@...linux.org.uk> Applied, thanks.
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