kernel warning about a duplicate filename in sysfs after a resume. CPU: AMD 5600H distro : MX-21.3_ahs_x64 Wildflower September 18 2022 base: Debian GNU/Linux 11 (bullseye) kernel tested: 6.1.0-6mx-amd64 ; 6.1.0-7mx-amd64 ; 6.2.10-1-liquorix-amd64 ; 6.2.11-3-liquorix-amd64 I am using a Lenovo TrackPoint Keyboard II, it's a keyboard with an integrated trackpad. It is paired in bluetooth mode. It is using the hid-lenovo module. Bluetooth is using mediatek mt7921e and btusb After a suspend/resume, sometimes, there is a kernel warning in dmesg. Maybe because the keyboard and mouse are using the same MAC address and it tries to re-create the battery info? [22706.169919] sysfs: cannot create duplicate filename '/class/power_supply/hid-d8:ab:24:63:e7:77-battery' [22706.169928] CPU: 2 PID: 41456 Comm: kworker/2:1 Tainted: P O 6.2.11-3-liquorix-amd64 #1 liquorix 6.2-16~mx21+1 [22706.169934] Hardware name: AZW SER/SER, BIOS V1.15_P4C7M43_Blink 09/17/2022 [22706.169937] Workqueue: events uhid_device_add_worker [uhid] [22706.169955] Call Trace: [22706.169960] <TASK> [22706.169962] dump_stack_lvl+0x44/0x60 [22706.169973] sysfs_warn_dup+0x57/0x70 [22706.169979] sysfs_create_link+0xc2/0xd0 [22706.169983] device_add+0x208/0xb70 [22706.169991] __power_supply_register+0x27b/0x420 [22706.169999] hidinput_setup_battery.isra.0+0x19e/0x240 [22706.170007] hidinput_connect+0x1326/0x4e60 [22706.170016] hid_connect+0x581/0x5d0 [22706.170021] hid_hw_start+0x41/0x70 [22706.170025] lenovo_probe+0x30/0x670 [hid_lenovo] [22706.170038] hid_device_probe+0xf4/0x190 [22706.170044] really_probe+0x1d6/0x3c0 [22706.170050] __driver_probe_device+0x72/0xe0 [22706.170054] driver_probe_device+0x1e/0x170 [22706.170058] __device_attach_driver+0xac/0x160 [22706.170063] ? __pfx___device_attach_driver+0x10/0x10 [22706.170068] bus_for_each_drv+0x7e/0xd0 [22706.170073] device_initial_probe+0xfd/0x1e0 [22706.170079] bus_probe_device+0xa8/0xc0 [22706.170083] device_add+0x3ec/0xb70 [22706.170088] hid_add_device+0xf8/0x3b0 [22706.170092] ? od_dbs_update+0xb9/0x190 [22706.170099] uhid_device_add_worker+0x15/0x60 [uhid] [22706.170108] process_one_work+0x1dc/0x3e0 [22706.170115] worker_thread+0x4d/0x460 [22706.170121] ? __pfx_worker_thread+0x10/0x10 [22706.170126] kthread+0xd8/0x100 [22706.170131] ? __pfx_kthread+0x10/0x10 [22706.170134] ret_from_fork+0x2c/0x50 [22706.170142] </TASK> [22706.170168] lenovo 0005:17EF:60E1.001D: can't register power supply: -17 [22706.170305] input: TrackPoint Keyboard II as /devices/virtual/misc/uhid/0005:17EF:60E1.001D/input/input42 [22706.171437] lenovo 0005:17EF:60E1.001D: input,hidraw4: BLUETOOTH HID v0.47 Keyboard [TrackPoint Keyboard II] on 4c:d5:77:f0:c3:6c [22734.816970] Bluetooth: hci0: ACL packet for unknown connection handle 512 [22735.849582] input: SANWA Gravi Mouse as /devices/virtual/misc/uhid/0005:1915:0040.001E/input/input43 [22735.850012] input: SANWA Gravi Consumer Control as /devices/virtual/misc/uhid/0005:1915:0040.001E/input/input44 [22735.851199] hid-generic 0005:1915:0040.001E: input,hidraw2: BLUETOOTH HID v0.01 Mouse [SANWA Gravi] on 4c:d5:77:f0:c3:6c [22760.786365] sysfs: cannot create duplicate filename '/class/power_supply/hid-d8:ab:24:63:e7:77-battery' [22760.786372] CPU: 6 PID: 37516 Comm: kworker/6:2 Tainted: P O 6.2.11-3-liquorix-amd64 #1 liquorix 6.2-16~mx21+1 [22760.786378] Hardware name: AZW SER/SER, BIOS V1.15_P4C7M43_Blink 09/17/2022 [22760.786380] Workqueue: events uhid_device_add_worker [uhid] [22760.786396] Call Trace: [22760.786400] <TASK> [22760.786402] dump_stack_lvl+0x44/0x60 [22760.786411] sysfs_warn_dup+0x57/0x70 [22760.786416] sysfs_create_link+0xc2/0xd0 [22760.786419] device_add+0x208/0xb70 [22760.786427] __power_supply_register+0x27b/0x420 [22760.786434] hidinput_setup_battery.isra.0+0x19e/0x240 [22760.786441] hidinput_connect+0x1326/0x4e60 [22760.786449] hid_connect+0x581/0x5d0 [22760.786454] hid_hw_start+0x41/0x70 [22760.786459] lenovo_probe+0x30/0x670 [hid_lenovo] [22760.786469] hid_device_probe+0xf4/0x190 [22760.786474] really_probe+0x1d6/0x3c0 [22760.786478] __driver_probe_device+0x72/0xe0 [22760.786483] driver_probe_device+0x1e/0x170 [22760.786487] __device_attach_driver+0xac/0x160 [22760.786491] ? __pfx___device_attach_driver+0x10/0x10 [22760.786495] bus_for_each_drv+0x7e/0xd0 [22760.786499] device_initial_probe+0xfd/0x1e0 [22760.786504] bus_probe_device+0xa8/0xc0 [22760.786507] device_add+0x3ec/0xb70 [22760.786513] hid_add_device+0xf8/0x3b0 [22760.786517] uhid_device_add_worker+0x15/0x60 [uhid] [22760.786526] process_one_work+0x1dc/0x3e0 [22760.786534] worker_thread+0x4d/0x460 [22760.786540] ? __pfx_worker_thread+0x10/0x10 [22760.786545] kthread+0xd8/0x100 [22760.786549] ? __pfx_kthread+0x10/0x10 [22760.786553] ret_from_fork+0x2c/0x50 [22760.786561] </TASK> [22760.786575] lenovo 0005:17EF:60E1.001F: can't register power supply: -17 [22760.786781] input: TrackPoint Keyboard II as /devices/virtual/misc/uhid/0005:17EF:60E1.001F/input/input45 [22760.787191] lenovo 0005:17EF:60E1.001F: input,hidraw4: BLUETOOTH HID v0.47 Keyboard [TrackPoint Keyboard II] on 4c:d5:77:f0:c3:6c
