Neeraj Sanjay Kale 3523747538 Bluetooth: btnxpuart: Fix random crash seen while removing driver ... This fixes the random kernel crash seen while removing the driver, when running the load/unload test over multiple iterations. 1) modprobe btnxpuart 2) hciconfig hci0 reset 3) hciconfig (check hci0 interface up with valid BD address) 4) modprobe -r btnxpuart Repeat steps 1 to 4 The ps_wakeup() call in btnxpuart_close() schedules the psdata->work(), which gets scheduled after module is removed, causing a kernel crash. This hidden issue got highlighted after enabling Power Save by default in 4183a7be77 (Bluetooth: btnxpuart: Enable Power Save feature on startup) The new ps_cleanup() deasserts UART break immediately while closing serdev device, cancels any scheduled ps_work and destroys the ps_lock mutex. [ 85.884604] Unable to handle kernel paging request at virtual address ffffd4a61638f258 [ 85.884624] Mem abort info: [ 85.884625] ESR = 0x0000000086000007 [ 85.884628] EC = 0x21: IABT (current EL), IL = 32 bits [ 85.884633] SET = 0, FnV = 0 [ 85.884636] EA = 0, S1PTW = 0 [ 85.884638] FSC = 0x07: level 3 translation fault [ 85.884642] swapper pgtable: 4k pages, 48-bit VAs, pgdp=0000000041dd0000 [ 85.884646] [ffffd4a61638f258] pgd=1000000095fff003, p4d=1000000095fff003, pud=100000004823d003, pmd=100000004823e003, pte=0000000000000000 [ 85.884662] Internal error: Oops: 0000000086000007 [#1] PREEMPT SMP [ 85.890932] Modules linked in: algif_hash algif_skcipher af_alg overlay fsl_jr_uio caam_jr caamkeyblob_desc caamhash_desc caamalg_desc crypto_engine authenc libdes crct10dif_ce polyval_ce polyval_generic snd_soc_imx_spdif snd_soc_imx_card snd_soc_ak5558 snd_soc_ak4458 caam secvio error snd_soc_fsl_spdif snd_soc_fsl_micfil snd_soc_fsl_sai snd_soc_fsl_utils gpio_ir_recv rc_core fuse [last unloaded: btnxpuart(O)] [ 85.927297] CPU: 1 PID: 67 Comm: kworker/1:3 Tainted: G O 6.1.36+g937b1be4345a #1 [ 85.936176] Hardware name: FSL i.MX8MM EVK board (DT) [ 85.936182] Workqueue: events 0xffffd4a61638f380 [ 85.936198] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 85.952817] pc : 0xffffd4a61638f258 [ 85.952823] lr : 0xffffd4a61638f258 [ 85.952827] sp : ffff8000084fbd70 [ 85.952829] x29: ffff8000084fbd70 x28: 0000000000000000 x27: 0000000000000000 [ 85.963112] x26: ffffd4a69133f000 x25: ffff4bf1c8540990 x24: ffff4bf215b87305 [ 85.963119] x23: ffff4bf215b87300 x22: ffff4bf1c85409d0 x21: ffff4bf1c8540970 [ 85.977382] x20: 0000000000000000 x19: ffff4bf1c8540880 x18: 0000000000000000 [ 85.977391] x17: 0000000000000000 x16: 0000000000000133 x15: 0000ffffe2217090 [ 85.977399] x14: 0000000000000001 x13: 0000000000000133 x12: 0000000000000139 [ 85.977407] x11: 0000000000000001 x10: 0000000000000a60 x9 : ffff8000084fbc50 [ 85.977417] x8 : ffff4bf215b7d000 x7 : ffff4bf215b83b40 x6 : 00000000000003e8 [ 85.977424] x5 : 00000000410fd030 x4 : 0000000000000000 x3 : 0000000000000000 [ 85.977432] x2 : 0000000000000000 x1 : ffff4bf1c4265880 x0 : 0000000000000000 [ 85.977443] Call trace: [ 85.977446] 0xffffd4a61638f258 [ 85.977451] 0xffffd4a61638f3e8 [ 85.977455] process_one_work+0x1d4/0x330 [ 85.977464] worker_thread+0x6c/0x430 [ 85.977471] kthread+0x108/0x10c [ 85.977476] ret_from_fork+0x10/0x20 [ 85.977488] Code: bad PC value [ 85.977491] ---[ end trace 0000000000000000 ]--- Preset since v6.9.11 Fixes: 86d55f124b ("Bluetooth: btnxpuart: Deasset UART break before closing serdev device") Signed-off-by: Neeraj Sanjay Kale <neeraj.sanjaykale@nxp.com> Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>		2024-08-23 15:56:04 -04:00
..
ath3k.c	Bluetooth: ath3k: Fix multiple issues reported by checkpatch.pl	2024-05-14 10:51:05 -04:00
bcm203x.c	Bluetooth: bcm203x: remove superfluous header files	2022-03-18 17:12:09 +01:00
bfusb.c	Bluetooth: bfusb: fix division by zero in send path	2021-10-25 15:04:46 +02:00
bluecard_cs.c
bpa10x.c
bt3c_cs.c
btbcm.c	Bluetooth: btbcm: Use devm_kstrdup()	2024-03-06 17:24:06 -05:00
btbcm.h	Bluetooth: hci_bcm: Add support for FW loading in autobaud mode	2022-07-21 17:04:38 -07:00
btintel_pcie.c	Bluetooth: HCI: Invert LE State quirk to be opt-out rather then opt-in	2024-08-15 13:07:55 -04:00
btintel_pcie.h	Bluetooth: btintel_pcie: Refactor and code cleanup	2024-05-14 10:58:30 -04:00
btintel.c	Bluetooth: btintel: Allow configuring drive strength of BRI	2024-08-23 15:56:03 -04:00
btintel.h	Bluetooth: btintel: Add firmware ID to firmware name	2024-07-14 21:34:45 -04:00
btmrvl_debugfs.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_390.RULE	2022-06-10 14:51:36 +02:00
btmrvl_drv.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_390.RULE	2022-06-10 14:51:36 +02:00
btmrvl_main.c	Bluetooth: HCI: Remove HCI_AMP support	2024-05-14 10:54:49 -04:00
btmrvl_sdio.c	Bluetooth: btmrvl_sdio: drop driver owner initialization	2024-04-04 11:09:12 +02:00
btmrvl_sdio.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_390.RULE	2022-06-10 14:51:36 +02:00
btmtk.c	Bluetooth: btmtk: Fix btmtk.c undefined reference build error	2024-07-26 10:54:02 -04:00
btmtk.h	Bluetooth: btmtk: remove #ifdef around declarations	2024-07-26 10:56:54 -04:00
btmtksdio.c	Bluetooth: HCI: Invert LE State quirk to be opt-out rather then opt-in	2024-08-15 13:07:55 -04:00
btmtkuart.c	Bluetooth: btmtk: move btusb_mtk_hci_wmt_sync to btmtk.c	2024-07-15 10:11:46 -04:00
btnxpuart.c	Bluetooth: btnxpuart: Fix random crash seen while removing driver	2024-08-23 15:56:04 -04:00
btqca.c	Bluetooth: qca: Fix error code in qca_read_fw_build_info()	2024-05-14 10:51:09 -04:00
btqca.h	Bluetooth: qca: clean up defines	2024-05-14 10:51:07 -04:00
btqcomsmd.c	Bluetooth: btqcomsmd: Convert to platform remove callback returning void	2024-05-14 10:51:03 -04:00
btrsi.c	Bluetooth: HCI: Remove HCI_AMP support	2024-05-14 10:54:49 -04:00
btrtl.c	Bluetooth: HCI: Invert LE State quirk to be opt-out rather then opt-in	2024-08-15 13:07:55 -04:00
btrtl.h	Bluetooth: btrtl: Add Realtek devcoredump support	2023-08-11 11:35:14 -07:00
btsdio.c	Bluetooth: HCI: Remove HCI_AMP support	2024-05-14 10:54:49 -04:00
btusb.c	Bluetooth: HCI: Invert LE State quirk to be opt-out rather then opt-in	2024-08-15 13:07:55 -04:00
dtl1_cs.c
h4_recv.h
hci_ag6xx.c
hci_ath.c
hci_bcm4377.c	Bluetooth: hci_bcm4377: Add BCM4388 support	2024-07-14 21:34:34 -04:00
hci_bcm.c	Bluetooth: hci_bcm: Limit bcm43455 baudrate to 2000000	2024-05-14 10:51:05 -04:00
hci_bcsp.c	treewide: Convert del_timer*() to timer_shutdown*()	2022-12-25 13:38:09 -08:00
hci_h4.c	Bluetooth: hci_h4: Fix padding calculation error within h4_recv_buf()	2021-11-16 13:57:25 +01:00
hci_h5.c	Bluetooth: btrtl: fix out of bounds memory access	2024-03-06 17:26:21 -05:00
hci_intel.c	Bluetooth: hci_intel: Fix multiple issues reported by checkpatch.pl	2024-05-14 10:51:04 -04:00
hci_ldisc.c	Bluetooth: Use sizeof(*pointer) instead of sizeof(type)	2024-07-14 21:34:28 -04:00
hci_ll.c	Bluetooth: hci_ll: drop of_match_ptr for ID table	2023-04-23 21:49:03 -07:00
hci_mrvl.c	Bluetooth: hci_mrvl: Add serdev support for 88W8997	2023-04-23 21:45:29 -07:00
hci_nokia.c	Bluetooth/nokia: Remove unused struct 'hci_nokia_radio_hdr'	2024-07-14 21:33:33 -04:00
hci_qca.c	Bluetooth: HCI: Invert LE State quirk to be opt-out rather then opt-in	2024-08-15 13:07:55 -04:00
hci_serdev.c	Bluetooth: HCI: Remove HCI_AMP support	2024-05-14 10:54:49 -04:00
hci_uart.h	Bluetooth: HCI: Remove HCI_AMP support	2024-05-14 10:54:49 -04:00
hci_vhci.c	Bluetooth: HCI: Invert LE State quirk to be opt-out rather then opt-in	2024-08-15 13:07:55 -04:00
Kconfig	Bluetooth: btmtk: Fix btmtk.c undefined reference build error harder	2024-07-26 10:56:05 -04:00
Makefile	Bluetooth: btintel_pcie: Add support for PCIe transport	2024-05-14 10:54:56 -04:00
virtio_bt.c	virtio: rename virtio_find_vqs_info() to virtio_find_vqs()	2024-07-17 05:20:58 -04:00