Fedor Pchelkin <pchelkin@xxxxxxxxx> wrote:
> The following assertion is triggered on the rtw89 driver startup. It
> looks meaningless to hold wiphy lock on the early init stage so drop the
> assertion.
>
> WARNING: CPU: 7 PID: 629 at drivers/net/wireless/realtek/rtw89/sar.c:502 rtw89_set_sar_from_acpi+0x365/0x4d0 [rtw89_core]
> CPU: 7 UID: 0 PID: 629 Comm: (udev-worker) Not tainted 6.15.0+ #29 PREEMPT(lazy)
> Hardware name: LENOVO 21D0/LNVNB161216, BIOS J6CN50WW 09/27/2024
> RIP: 0010:rtw89_set_sar_from_acpi+0x365/0x4d0 [rtw89_core]
> Call Trace:
> <TASK>
> rtw89_sar_init+0x68/0x2c0 [rtw89_core]
> rtw89_core_init+0x188e/0x1e50 [rtw89_core]
> rtw89_pci_probe+0x530/0xb50 [rtw89_pci]
> local_pci_probe+0xd9/0x190
> pci_call_probe+0x183/0x540
> pci_device_probe+0x171/0x2c0
> really_probe+0x1e1/0x890
> __driver_probe_device+0x18c/0x390
> driver_probe_device+0x4a/0x120
> __driver_attach+0x1a0/0x530
> bus_for_each_dev+0x10b/0x190
> bus_add_driver+0x2eb/0x540
> driver_register+0x1a3/0x3a0
> do_one_initcall+0xd5/0x450
> do_init_module+0x2cc/0x8f0
> init_module_from_file+0xe1/0x150
> idempotent_init_module+0x226/0x760
> __x64_sys_finit_module+0xcd/0x150
> do_syscall_64+0x94/0x380
> entry_SYSCALL_64_after_hwframe+0x76/0x7e
>
> Found by Linux Verification Center (linuxtesting.org).
>
> Fixes: 88ca3107d2ce ("wifi: rtw89: sar: add skeleton for SAR configuration via ACPI")
> Signed-off-by: Fedor Pchelkin <pchelkin@xxxxxxxxx>
2 patch(es) applied to rtw-next branch of rtw.git, thanks.
6fe21445f7e8 wifi: rtw89: sar: drop lockdep assertion in rtw89_set_sar_from_acpi
dad7aafa5216 wifi: rtw89: sar: do not assert wiphy lock held until probing is done
---
https://github.com/pkshih/rtw.git
