Public bug reported:
After upgrading from 4.15.0-1052-raspi2 to 4.15.0-1053-raspi2:
ubuntu@ubuntu:~$ cat /proc/device-tree/model
Raspberry Pi 3 Model B Rev 1.2
[ 3.129125] ------------[ cut here ]------------
[ 3.222394] random: fast init done
[ 4.894369] /soc/spi@7e204000/spidev@0: buggy DT: spidev listed directly in
DT
[ 4.904121] WARNING: CPU: 0 PID: 35 at
/build/linux-raspi2-LrAkG8/linux-raspi2-4.15.0/drivers/spi/spidev.c:730
spidev_probe+0x13c/0x200
[ 4.918910] Modules linked in: aes_neon_bs aes_neon_blk crypto_simd cryptd
aes_arm64
[ 4.929200] CPU: 0 PID: 35 Comm: kworker/0:1 Tainted: G W
4.15.0-1053-raspi2 #57-Ubuntu
[ 4.941032] Hardware name: Raspberry Pi 3 Model B Rev 1.2 (DT)
[ 4.949434] Workqueue: events deferred_probe_work_func
[ 4.957132] pstate: 40400005 (nZcv daif +PAN -UAO)
[ 4.964468] pc : spidev_probe+0x13c/0x200
[ 4.971010] lr : spidev_probe+0x13c/0x200
[ 4.977517] sp : ffff00000814b7a0
[ 4.983301] x29: ffff00000814b7a0 x28: 0000000000000000
[ 4.991117] x27: 0000000000000000 x26: 0000000000000000
[ 4.998917] x25: ffff256606df7000 x24: 0000000000000005
[ 5.006697] x23: ffff256606cb8a38 x22: 0000000000000000
[ 5.014466] x21: 0000000000000000 x20: ffffc79d73473000
[ 5.022247] x19: ffff256606cb8a18 x18: 0000000000000001
[ 5.030015] x17: 0000000000000001 x16: 0000000000000001
[ 5.037762] x15: ffff256606269000 x14: 0000000000000020
[ 5.045496] x13: 0000000000000000 x12: 00000000ffffffff
[ 5.053210] x11: 0000000000000001 x10: ffff256606c09c40
[ 5.060900] x9 : 00000000ff000000 x8 : ffff256605c14968
[ 5.068561] x7 : ffffc79d79563d60 x6 : 0000000000000104
[ 5.076159] x5 : 0000000000000000 x4 : 0000000000000000
[ 5.083790] x3 : ffffffffffffffff x2 : ffff256606c2a308
[ 5.091391] x1 : f9b69bb55a180d00 x0 : 0000000000000000
[ 5.098999] Call trace:
[ 5.103646] spidev_probe+0x13c/0x200
[ 5.109523] spi_drv_probe+0x80/0xd0
[ 5.115290] driver_probe_device+0x2fc/0x468
[ 5.121757] __device_attach_driver+0xa0/0x138
[ 5.128397] bus_for_each_drv+0x74/0xd8
[ 5.134398] __device_attach+0xe0/0x160
[ 5.140347] device_initial_probe+0x24/0x30
[ 5.146669] bus_probe_device+0x9c/0xa8
[ 5.152636] device_add+0x3fc/0x618
[ 5.158215] spi_add_device+0xfc/0x1a0
[ 5.164082] of_register_spi_device+0x1e4/0x368
[ 5.170747] spi_register_controller+0x1e0/0x738
[ 5.177497] devm_spi_register_controller+0x4c/0xa0
[ 5.184513] bcm2835_spi_probe+0x2a8/0x3d0
[ 5.190674] platform_drv_probe+0x60/0xc0
[ 5.196734] driver_probe_device+0x2fc/0x468
[ 5.203056] __device_attach_driver+0xa0/0x138
[ 5.209563] bus_for_each_drv+0x74/0xd8
[ 5.215459] __device_attach+0xe0/0x160
[ 5.221346] device_initial_probe+0x24/0x30
[ 5.227580] bus_probe_device+0x9c/0xa8
[ 5.233443] deferred_probe_work_func+0x60/0x180
[ 5.240101] process_one_work+0x1d8/0x490
[ 5.246140] worker_thread+0x248/0x478
[ 5.251897] kthread+0x134/0x138
[ 5.257051] ret_from_fork+0x10/0x1c
[ 5.262549] ---[ end trace c44065d7c3da2ac2 ]---
[ 5.269391] usb 1-1: New USB device found, idVendor=0424, idProduct=9514
[ 5.269672] ------------[ cut here ]------------
[ 5.278071] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 5.284598] /soc/spi@7e204000/spidev@1: buggy DT: spidev listed directly in
DT
[ 5.294158] hub 1-1:1.0: USB hub found
[ 5.303012] WARNING: CPU: 0 PID: 35 at
/build/linux-raspi2-LrAkG8/linux-raspi2-4.15.0/drivers/spi/spidev.c:730
spidev_probe+0x13c/0x200
[ 5.308736] hub 1-1:1.0: 5 ports detected
[ 5.322971] Modules linked in: aes_neon_bs aes_neon_blk crypto_simd cryptd
aes_arm64
[ 5.322991] CPU: 0 PID: 35 Comm: kworker/0:1 Tainted: G W
4.15.0-1053-raspi2 #57-Ubuntu
[ 5.322995] Hardware name: Raspberry Pi 3 Model B Rev 1.2 (DT)
[ 5.357822] Workqueue: events deferred_probe_work_func
[ 5.364924] pstate: 40400005 (nZcv daif +PAN -UAO)
[ 5.371672] pc : spidev_probe+0x13c/0x200
[ 5.377622] lr : spidev_probe+0x13c/0x200
[ 5.383568] sp : ffff00000814b7a0
[ 5.388811] x29: ffff00000814b7a0 x28: 0000000000000000
[ 5.396097] x27: 0000000000000000 x26: 0000000000000000
[ 5.403379] x25: ffff256606df7000 x24: 0000000000000006
[ 5.410667] x23: ffff256606cb8a38 x22: 0000000000000000
[ 5.417951] x21: 0000000000000000 x20: ffffc79d73472000
[ 5.425200] x19: ffff256606cb8a18 x18: 0000000000000001
[ 5.432482] x17: 0000000000000001 x16: 0000000000000001
[ 5.439763] x15: ffff256606269000 x14: 0000000000000020
[ 5.447042] x13: 0000000000000000 x12: 00000000ffffffff
[ 5.454329] x11: 0000000000000001 x10: ffff256606c09c40
[ 5.461607] x9 : 00000000ff000000 x8 : ffff256605c14968
[ 5.468894] x7 : ffffc79d795636a0 x6 : 0000000000000015
[ 5.476143] x5 : 0000000000000000 x4 : 0000000000000000
[ 5.483418] x3 : ffffffffffffffff x2 : ffff256606c2a308
[ 5.490700] x1 : f9b69bb55a180d00 x0 : 0000000000000000
[ 5.497983] Call trace:
[ 5.502330] spidev_probe+0x13c/0x200
[ 5.507898] spi_drv_probe+0x80/0xd0
[ 5.513399] driver_probe_device+0x2fc/0x468
[ 5.519616] __device_attach_driver+0xa0/0x138
[ 5.526004] bus_for_each_drv+0x74/0xd8
[ 5.531772] __device_attach+0xe0/0x160
[ 5.537540] device_initial_probe+0x24/0x30
[ 5.543669] bus_probe_device+0x9c/0xa8
[ 5.549440] device_add+0x3fc/0x618
[ 5.554855] spi_add_device+0xfc/0x1a0
[ 5.560542] of_register_spi_device+0x1e4/0x368
[ 5.567027] spi_register_controller+0x1e0/0x738
[ 5.573589] devm_spi_register_controller+0x4c/0xa0
[ 5.580421] bcm2835_spi_probe+0x2a8/0x3d0
[ 5.586460] platform_drv_probe+0x60/0xc0
[ 5.592399] driver_probe_device+0x2fc/0x468
[ 5.598613] __device_attach_driver+0xa0/0x138
[ 5.605005] bus_for_each_drv+0x74/0xd8
[ 5.610777] __device_attach+0xe0/0x160
[ 5.616553] device_initial_probe+0x24/0x30
[ 5.622681] bus_probe_device+0x9c/0xa8
[ 5.628450] deferred_probe_work_func+0x60/0x180
[ 5.635027] process_one_work+0x1d8/0x490
[ 5.640949] worker_thread+0x248/0x478
[ 5.646627] kthread+0x134/0x138
[ 5.651777] ret_from_fork+0x10/0x1c
[ 5.657256] ---[ end trace c44065d7c3da2ac3 ]---
** Affects: linux-raspi2 (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux-raspi2 (Ubuntu Bionic)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1858658
Title:
WARNING: CPU: 3 PID: 33 at /build/linux-raspi2-LrAkG8/linux-
raspi2-4.15.0/drivers/spi/spidev.c:730 spidev_probe+0x13c/0x200
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