Re: [PATCH v2] drm/amd/display: Use root connector's colorspace property for MST

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On 7/13/23 21:58, Harry Wentland wrote:
> After driver init we shouldn't create new properties. Doing so
> will lead to a warning storm from __drm_mode_object_add.
> 
> We don't really need to create the property for MST connectors.
> Re-using the mst_root connector's property is fine.
> 
> v2: Add curly braces to avoid possibly 'else' confusion

I'm still hitting WARNINGs with this, see attachment.


-- 
Earthling Michel Dänzer            |                  https://redhat.com
Libre software enthusiast          |         Mesa and Xwayland developer
WARNING: CPU: 3 PID: 232 at drivers/gpu/drm/drm_mode_object.c:242 drm_object_attach_property+0x6d/0xb0 [drm]
Modules linked in: amdgpu(E+) crc32c_intel(E) i2c_algo_bit(E) drm_ttm_helper(E) ttm(E) drm_suballoc_helper(E) amdxcp(E) drm_buddy(E) gpu_sched(E) drm_display_helper(E) nvme(E) aesni_intel(E) xhci_pci(E) drm_kms_helper(E) nvme_core(E) crypto_simd(E) xhci_hcd(E) psmouse(E) evdev(E) t10_pi(E) cryptd(E) drm(E) serio_raw(E) cec(E) usbcore(E) rc_core(E) usb_common(E) crc64_rocksoft(E) crc64(E) crc_t10dif(E) crct10dif_generic(E) crct10dif_pclmul(E) crct10dif_common(E) video(E) wmi(E)
CPU: 3 PID: 232 Comm: kworker/3:2 Tainted: G            E      6.4.3+ #4
Hardware name: LENOVO 20NF0000GE/20NF0000GE, BIOS R11ET36W (1.16 ) 03/30/2020
Workqueue: events_long drm_dp_mst_link_probe_work [drm_display_helper]
RIP: 0010:drm_object_attach_property+0x6d/0xb0 [drm]
Code: 48 8b 47 08 83 00 01 31 c0 31 d2 31 c9 31 f6 31 ff 45 31 c0 45 31 c9 45 31 d2 e9 2e 0e b8 f6 4d 85 d2 75 c6 83 7f 78 01 75 c0 <0f> 0b eb bc 41 80 78 68 00 74 b5 0f 0b eb b1 44 89 ce 48 c7 c7 00
RSP: 0018:ffffbfbc410bbb80 EFLAGS: 00010246
RAX: 0000000000000011 RBX: ffff9e679998a000 RCX: ffff9e67a1a041b8
RDX: 0000000000000000 RSI: ffff9e684a11a180 RDI: ffff9e67a1a04040
RBP: 000000000000000a R08: ffff9e67a2000010 R09: 00000000c0c0c0c0
R10: 0000000000000000 R11: 0000000000000000 R12: ffff9e679998a040
R13: ffff9e67a2045ca8 R14: ffff9e67a2000010 R15: 0000000000000003
FS:  0000000000000000(0000) GS:ffff9e6a30ac0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f31b4f4a055 CR3: 0000000120eb8000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 ? drm_object_attach_property+0x6d/0xb0 [drm]
 ? __warn+0x81/0x130
 ? drm_object_attach_property+0x6d/0xb0 [drm]
 ? report_bug+0x1a2/0x1d0
 ? handle_bug+0x42/0x80
 ? exc_invalid_op+0x17/0x80
 ? asm_exc_invalid_op+0x1a/0x20
 ? drm_object_attach_property+0x6d/0xb0 [drm]
 drm_connector_attach_colorspace_property+0x1b/0x30 [drm]
 amdgpu_dm_connector_init_helper+0x1ed/0x300 [amdgpu]
 dm_dp_add_mst_connector+0xbd/0x1b0 [amdgpu]
 drm_dp_mst_port_add_connector+0x13f/0x1e0 [drm_display_helper]
 drm_dp_send_link_address+0x542/0xaf0 [drm_display_helper]
 ? __slab_free+0xe0/0x330
 ? queue_work_on+0x63/0x70
 drm_dp_check_and_send_link_address+0x7e/0xa0 [drm_display_helper]
 drm_dp_mst_link_probe_work+0x12e/0x1b0 [drm_display_helper]
 process_one_work+0x1c8/0x3c0
 worker_thread+0x51/0x3a0
 ? __pfx_worker_thread+0x10/0x10
 kthread+0xfa/0x130
 ? __pfx_kthread+0x10/0x10
 ret_from_fork+0x2c/0x50
 </TASK>
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: CPU: 3 PID: 232 at drivers/gpu/drm/drm_mode_object.c:242 drm_object_attach_property+0x6d/0xb0 [drm]
Modules linked in: amdgpu(E+) crc32c_intel(E) i2c_algo_bit(E) drm_ttm_helper(E) ttm(E) drm_suballoc_helper(E) amdxcp(E) drm_buddy(E) gpu_sched(E) drm_display_helper(E) nvme(E) aesni_intel(E) xhci_pci(E) drm_kms_helper(E) nvme_core(E) crypto_simd(E) xhci_hcd(E) psmouse(E) evdev(E) t10_pi(E) cryptd(E) drm(E) serio_raw(E) cec(E) usbcore(E) rc_core(E) usb_common(E) crc64_rocksoft(E) crc64(E) crc_t10dif(E) crct10dif_generic(E) crct10dif_pclmul(E) crct10dif_common(E) video(E) wmi(E)
CPU: 3 PID: 232 Comm: kworker/3:2 Tainted: G        W   E      6.4.3+ #4
Hardware name: LENOVO 20NF0000GE/20NF0000GE, BIOS R11ET36W (1.16 ) 03/30/2020
Workqueue: events_long drm_dp_mst_link_probe_work [drm_display_helper]
RIP: 0010:drm_object_attach_property+0x6d/0xb0 [drm]
Code: 48 8b 47 08 83 00 01 31 c0 31 d2 31 c9 31 f6 31 ff 45 31 c0 45 31 c9 45 31 d2 e9 2e 0e b8 f6 4d 85 d2 75 c6 83 7f 78 01 75 c0 <0f> 0b eb bc 41 80 78 68 00 74 b5 0f 0b eb b1 44 89 ce 48 c7 c7 00
RSP: 0018:ffffbfbc410bbb80 EFLAGS: 00010246
RAX: 0000000000000012 RBX: ffff9e679998e000 RCX: ffff9e67a1a041b8
RDX: 0000000000000000 RSI: ffff9e684a11a180 RDI: ffff9e67a1a04040
RBP: 000000000000000a R08: ffff9e67a2000010 R09: 00000000c0c0c0c0
R10: 0000000000000000 R11: 0000000000000000 R12: ffff9e679998e040
R13: ffff9e67a2045ca8 R14: ffff9e67a2000010 R15: 0000000000000003
FS:  0000000000000000(0000) GS:ffff9e6a30ac0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f31b4f4a055 CR3: 0000000120eb8000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 ? drm_object_attach_property+0x6d/0xb0 [drm]
 ? __warn+0x81/0x130
 ? drm_object_attach_property+0x6d/0xb0 [drm]
 ? report_bug+0x1a2/0x1d0
 ? handle_bug+0x42/0x80
 ? exc_invalid_op+0x17/0x80
 ? asm_exc_invalid_op+0x1a/0x20
 ? drm_object_attach_property+0x6d/0xb0 [drm]
 drm_connector_attach_colorspace_property+0x1b/0x30 [drm]
 amdgpu_dm_connector_init_helper+0x1ed/0x300 [amdgpu]
 dm_dp_add_mst_connector+0xbd/0x1b0 [amdgpu]
 drm_dp_mst_port_add_connector+0x13f/0x1e0 [drm_display_helper]
 drm_dp_send_link_address+0x542/0xaf0 [drm_display_helper]
 ? __slab_free+0xe0/0x330
 ? queue_work_on+0x63/0x70
 drm_dp_check_and_send_link_address+0x7e/0xa0 [drm_display_helper]
 drm_dp_mst_link_probe_work+0x12e/0x1b0 [drm_display_helper]
 process_one_work+0x1c8/0x3c0
 worker_thread+0x51/0x3a0
 ? __pfx_worker_thread+0x10/0x10
 kthread+0xfa/0x130
 ? __pfx_kthread+0x10/0x10
 ret_from_fork+0x2c/0x50
 </TASK>
---[ end trace 0000000000000000 ]---
hid: raw HID events driver (C) Jiri Kosina
------------[ cut here ]------------
WARNING: CPU: 3 PID: 232 at drivers/gpu/drm/drm_mode_object.c:242 drm_object_attach_property+0x6d/0xb0 [drm]
Modules linked in: usbhid(E+) hid(E) amdgpu(E+) crc32c_intel(E) i2c_algo_bit(E) drm_ttm_helper(E) ttm(E) drm_suballoc_helper(E) amdxcp(E) drm_buddy(E) gpu_sched(E) drm_display_helper(E) nvme(E) aesni_intel(E) xhci_pci(E) drm_kms_helper(E) nvme_core(E) crypto_simd(E) xhci_hcd(E) psmouse(E) evdev(E) t10_pi(E) cryptd(E) drm(E) serio_raw(E) cec(E) usbcore(E) rc_core(E) usb_common(E) crc64_rocksoft(E) crc64(E) crc_t10dif(E) crct10dif_generic(E) crct10dif_pclmul(E) crct10dif_common(E) video(E) wmi(E)
CPU: 3 PID: 232 Comm: kworker/3:2 Tainted: G        W   E      6.4.3+ #4
Hardware name: LENOVO 20NF0000GE/20NF0000GE, BIOS R11ET36W (1.16 ) 03/30/2020
Workqueue: events_long drm_dp_mst_link_probe_work [drm_display_helper]
RIP: 0010:drm_object_attach_property+0x6d/0xb0 [drm]
Code: 48 8b 47 08 83 00 01 31 c0 31 d2 31 c9 31 f6 31 ff 45 31 c0 45 31 c9 45 31 d2 e9 2e 0e b8 f6 4d 85 d2 75 c6 83 7f 78 01 75 c0 <0f> 0b eb bc 41 80 78 68 00 74 b5 0f 0b eb b1 44 89 ce 48 c7 c7 00
RSP: 0018:ffffbfbc410bbb80 EFLAGS: 00010246
RAX: 0000000000000013 RBX: ffff9e6799988000 RCX: ffff9e67a1a041b8
RDX: 0000000000000000 RSI: ffff9e684a11a180 RDI: ffff9e67a1a04040
RBP: 000000000000000a R08: ffff9e67a2000010 R09: 00000000c0c0c0c0
R10: 0000000000000000 R11: 0000000000000000 R12: ffff9e6799988040
R13: ffff9e67a2045ca8 R14: ffff9e67a2000010 R15: 0000000000000003
FS:  0000000000000000(0000) GS:ffff9e6a30ac0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f31b4f4a055 CR3: 0000000120eb8000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 ? drm_object_attach_property+0x6d/0xb0 [drm]
 ? __warn+0x81/0x130
 ? drm_object_attach_property+0x6d/0xb0 [drm]
 ? report_bug+0x1a2/0x1d0
 ? handle_bug+0x42/0x80
 ? exc_invalid_op+0x17/0x80
 ? asm_exc_invalid_op+0x1a/0x20
 ? drm_object_attach_property+0x6d/0xb0 [drm]
 drm_connector_attach_colorspace_property+0x1b/0x30 [drm]
 amdgpu_dm_connector_init_helper+0x1ed/0x300 [amdgpu]
 dm_dp_add_mst_connector+0xbd/0x1b0 [amdgpu]
 drm_dp_mst_port_add_connector+0x13f/0x1e0 [drm_display_helper]
 drm_dp_send_link_address+0x542/0xaf0 [drm_display_helper]
 ? __slab_free+0xe0/0x330
 ? queue_work_on+0x63/0x70
 drm_dp_check_and_send_link_address+0x7e/0xa0 [drm_display_helper]
 drm_dp_mst_link_probe_work+0x12e/0x1b0 [drm_display_helper]
 process_one_work+0x1c8/0x3c0
 worker_thread+0x51/0x3a0
 ? __pfx_worker_thread+0x10/0x10
 kthread+0xfa/0x130
 ? __pfx_kthread+0x10/0x10
 ret_from_fork+0x2c/0x50
 </TASK>

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