commit 2683eeb627 breaks buffalo wzr600dhp

[Russell Senior]

Building master (182eaa4916) with kernel 5.10 and booting, I get:

[...]
[    0.706515] spi-nor spi0.0: mx25l12805d (16384 Kbytes)
[    0.716193] spi-nor spi0.1: unrecognized JEDEC id bytes: 20 18 c2 20 18 c2
[    0.723165] spi-nor: probe of spi0.1 failed with error -2
[    0.730576] libphy: Fixed MDIO Bus: probed
[    0.737716] ag71xx 19000000.eth: invalid MAC address, using random address
[    1.062573] libphy: ag71xx_mdio: probed
[    1.069024] switch0: Atheros AR8316 rev. 1 switch registered on mdio.0
[    1.077657] ag71xx 19000000.eth: connected to PHY at fixed-0:00 [uid=00000000, driver=Generic PHY]
[    1.087283] eth0: Atheros AG71xx at 0xb9000000, irq 4, mode: rgmii
[    1.093851] ag71xx 1a000000.eth: invalid MAC address, using random address
[    1.164292] random: fast init done
[    1.417471] ar8316: Using port 4 as PHY
[    2.470428] ag71xx 1a000000.eth: connected to PHY at mdio.0:04 [uid=004dd041, driver=Atheros AR8216/AR8236/AR8316]
[    2.481391] eth1: Atheros AG71xx at 0xba000000, irq 5, mode: rgmii
[    2.487813] i2c /dev entries driver
[    2.492936] NET: Registered protocol family 10
[    2.502467] Segment Routing with IPv6
[    2.506307] NET: Registered protocol family 17
[    2.510841] 8021q: 802.1Q VLAN Support v1.8
[    2.518597] /dev/root: Can't open blockdev
[    2.522754] VFS: Cannot open root device "(null)" or unknown-block(0,0): error -6
[    2.530242] Please append a correct "root=" boot option; here are the available partitions:
[    2.538600] 1f00           16384 mtdblock0
[    2.538604]  (driver?)
[    2.545140] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
[    2.553386] Rebooting in 1 seconds..

Reverting 2683eeb627 lets it work again.


-- 
Russell Senior, President
russell at personaltelco.net