4.10-rc5+ WARNING: CPU: 3 PID: 1 at ./include/drm/drm_crtc.h:857 drm_kms_helper_poll_enable.part.4+0xa8/0xc0

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Hi all,

I see this brand new warning when booting here.

Top commit is v4.10-rc5-107-g883af14e67e8 from Linus' master.

[    2.209255] [drm] Initialized
[    2.210636] [drm] Memory usable by graphics device = 2048M
[    2.210732] [drm] Replacing VGA console driver
[    2.211517] Console: switching to colour dummy device 80x25
[    2.218452] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    2.218471] [drm] Driver supports precise vblank timestamp query.
[    2.219510] i915 0000:00:02.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=io+mem
[    2.297687] ------------[ cut here ]------------
[    2.297714] WARNING: CPU: 3 PID: 1 at ./include/drm/drm_crtc.h:857 drm_kms_helper_poll_enable.part.4+0xa8/0xc0
[    2.297732] Modules linked in:
[    2.297745] CPU: 3 PID: 1 Comm: swapper/0 Not tainted 4.10.0-rc5+ #1
[    2.297757] Hardware name: LENOVO 2320CTO/2320CTO, BIOS G2ET86WW (2.06 ) 11/13/2012
[    2.297772] Call Trace:
[    2.297787]  dump_stack+0x67/0x92
[    2.297801]  __warn+0xcb/0xf0
[    2.297812]  warn_slowpath_null+0x1d/0x20
[    2.297824]  drm_kms_helper_poll_enable.part.4+0xa8/0xc0
[    2.297837]  drm_kms_helper_poll_init+0xaa/0xb0
[    2.297851]  i915_driver_load+0x1384/0x1430
[    2.297864]  i915_pci_probe+0x2d/0x50
[    2.297876]  local_pci_probe+0x42/0xa0
[    2.297888]  ? pci_match_device+0xe0/0x110
[    2.297900]  pci_device_probe+0xdb/0x130
[    2.297915]  driver_probe_device+0x204/0x2e0
[    2.297927]  __driver_attach+0x9f/0xb0
[    2.297938]  ? driver_probe_device+0x2e0/0x2e0
[    2.297950]  bus_for_each_dev+0x66/0xa0
[    2.297961]  driver_attach+0x1e/0x20
[    2.297972]  bus_add_driver+0x1b4/0x230
[    2.297986]  ? mipi_dsi_bus_init+0x12/0x12
[    2.297998]  driver_register+0x60/0xe0
[    2.298009]  ? mipi_dsi_bus_init+0x12/0x12
[    2.298020]  __pci_register_driver+0x5d/0x60
[    2.298032]  i915_init+0x52/0x55
[    2.298045]  do_one_initcall+0x53/0x1a0
[    2.298057]  ? parse_args+0x260/0x3e0
[    2.298071]  kernel_init_freeable+0x11d/0x1a3
[    2.298084]  ? rest_init+0x140/0x140
[    2.298094]  kernel_init+0xe/0x100
[    2.298104]  ret_from_fork+0x2e/0x40
[    2.298120] ---[ end trace a758b84f8e587539 ]---
[    2.302699] ACPI: Video Device [VID] (multi-head: yes  rom: no  post: no)
[    2.304017] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input3
[    2.304287] [drm] Initialized i915 1.6.0 20161121 for 0000:00:02.0 on minor 0


-- 
Regards/Gruss,
    Boris.

Good mailing practices for 400: avoid top-posting and trim the reply.
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