diff options
| author | Baochen Qiang <baochen.qiang@oss.qualcomm.com> | 2025-11-19 10:15:57 +0800 |
|---|---|---|
| committer | Jeff Johnson <jeff.johnson@oss.qualcomm.com> | 2025-11-19 11:52:08 -0800 |
| commit | 5a384854d81f83d59d812b54bfa27fd0e56e36f0 (patch) | |
| tree | 11d41b85b1deb57150958c1325eae2e4bd677e0c /tools/perf/lib/Documentation/tutorial/git@git.tavy.me:linux.git | |
| parent | 7cd7392a07782b8ad4aa6360e4be1967af2eab04 (diff) | |
wifi: ath12k: add the missing RCU lock in ath12k_dp_tx_free_txbuf()
RCU read lock is missing in ath12k_dp_tx_free_txbuf() before calling
ath12k_dp_to_pdev_dp(), causing below warning:
WARNING: suspicious RCU usage
-----------------------------
drivers/net/wireless/ath/ath12k/dp.h:653 ath12k dp to dp pdev called without rcu lock!
Call Trace:
<IRQ>
show_stack
dump_stack_lvl
dump_stack
lockdep_rcu_suspicious.cold
ath12k_dp_tx_free_txbuf
ath12k_wifi7_dp_tx_completion_handler
ath12k_wifi7_dp_service_srng
ath12k_pci_ext_grp_napi_poll
[...]
</IRQ>
Invoke guard(rcu) to fix it.
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00302-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.115823.3
Signed-off-by: Baochen Qiang <baochen.qiang@oss.qualcomm.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20251119-ath12k-fix-missing-rcu-lock-v1-1-8155de1dc4fc@oss.qualcomm.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
Diffstat (limited to 'tools/perf/lib/Documentation/tutorial/git@git.tavy.me:linux.git')
0 files changed, 0 insertions, 0 deletions