Hi All,
just compiled 4.1 and just got this warning, twice, in my dmesg:
[lun giu 22 11:43:18 2015] ------------[ cut here ]------------ [lun giu 22 11:43:18 2015] WARNING: CPU: 1 PID: 2184 at drivers/gpu/drm/drm_ioctl.c:144 drm_setversion+0xe1/0x179() [lun giu 22 11:43:18 2015] No drm_driver.set_busid() implementation provided by 0xffffffff81ec3980. Use drm_dev_set_unique() to set the unique name explicitly. [lun giu 22 11:43:18 2015] Modules linked in: [lun giu 22 11:43:18 2015] bnep algif_skcipher cdc_wdm cdc_acm uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev btusb btbcm btintel bluetooth hp_wmi sparse_keymap intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp snd_hda_codec_hdmi coretemp kvm_intel kvm snd_hda_codec_generic crct10dif_pclmul crc32_pclmul snd_hda_intel iwldvm snd_hda_controller snd_hda_codec snd_hwdep psmouse snd_hda_core iwlwifi snd_pcm snd_timer snd soundcore wmi hp_accel(+) hp_wireless lis3lv02d sch_fq_codel dm_zero dm_persistent_data dm_service_time dm_round_robin dm_queue_length dm_multipath dm_delay virtio_pci virtio_blk virtio_balloon virtio_ring virtio fuse overlay linear raid0 dm_raid dm_snapshot dm_bufio dm_mirror dm_region_hash dm_log ohci_pci ohci_hcd uhci_hcd [lun giu 22 11:43:18 2015] CPU: 1 PID: 2184 Comm: X Tainted: G W 4.1.0 #1 [lun giu 22 11:43:18 2015] Hardware name: Hewlett-Packard HP EliteBook Folio 9470m/18DF, BIOS 68IBD Ver. F.40 02/01/2013 [lun giu 22 11:43:18 2015] 0000000000000000 0000000000000009 ffffffff818d8bfd ffff8800b226fd38 [lun giu 22 11:43:18 2015] ffffffff810c5426 ffff880235437240 ffffffff8152870c ffff8800b2f16000 [lun giu 22 11:43:18 2015] ffff880234ffc000 ffff8800b226fdf0 ffff8800b2c8f300 00000000c0106407 [lun giu 22 11:43:18 2015] Call Trace: [lun giu 22 11:43:18 2015] [<ffffffff818d8bfd>] ? dump_stack+0x47/0x67 [lun giu 22 11:43:18 2015] [<ffffffff810c5426>] ? warn_slowpath_common+0x9d/0xb5 [lun giu 22 11:43:18 2015] [<ffffffff8152870c>] ? drm_setversion+0xe1/0x179 [lun giu 22 11:43:18 2015] [<ffffffff810c5488>] ? warn_slowpath_fmt+0x4a/0x4f [lun giu 22 11:43:18 2015] [<ffffffff8152870c>] ? drm_setversion+0xe1/0x179 [lun giu 22 11:43:18 2015] [<ffffffff81528465>] ? drm_ioctl+0x376/0x3dd [lun giu 22 11:43:18 2015] [<ffffffff8152862b>] ? drm_version+0x8d/0x8d [lun giu 22 11:43:18 2015] [<ffffffff811ca766>] ? do_filp_open+0x30/0x74 [lun giu 22 11:43:18 2015] [<ffffffff811cc591>] ? do_vfs_ioctl+0x379/0x431 [lun giu 22 11:43:18 2015] [<ffffffff811d4784>] ? __fd_install+0x20/0x52 [lun giu 22 11:43:18 2015] [<ffffffff811bccab>] ? do_sys_open+0x1c0/0x1d2 [lun giu 22 11:43:18 2015] [<ffffffff811cc687>] ? SyS_ioctl+0x3e/0x5a [lun giu 22 11:43:18 2015] [<ffffffff818e0d9b>] ? system_call_fastpath+0x16/0x6e [lun giu 22 11:43:18 2015] ---[ end trace 46364eedd82ef148 ]---
It does not seems to affect normal behaviour, but maybe the report could be interesting for maintainers.
Sorry if this has already been reported; if more information is needed just let me know (please CC: me as I'm not subscribed to lists.)
Many thanks.