[PATCH v2 2/2] wifi: ath11k: move update channel list to worker for wait flag

[Jeff Johnson]

On 9/5/2024 8:32 PM, Kang Yang wrote:
> From: Wen Gong <quic_wgong at quicinc.com>
> 
> When wait flag is set for ath11k_reg_update_chan_list(), it will wait
> the completion of 11d/hw scan if 11d/hw scan is running.
> 
> With the previous patch "wifi: ath11k: move update channel list from
> update reg worker to reg notifier", ath11k_reg_update_chan_list() will
> be called when reg_work is running. The global lock rtnl_lock will be
> held by reg_work in the meantime. If the wait_for_completion_timeout()
> is called due to 11d/hw scan is running, the occupation time of
> rtnl_lock will increase. This will increase blocking time for other
> threads if they want to use rtnl_lock.
> 
> Move update channel list operation in ath11k_reg_update_chan_list() to
> a new worker, then the wait of completion of 11d/hw scan will not
> happen in reg_work and not increase the occupation time of the rtnl_lock.
> 
> Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3
> 
> Signed-off-by: Wen Gong <quic_wgong at quicinc.com>
> Co-developed-by: Kang Yang <quic_kangyang at quicinc.com>
> Signed-off-by: Kang Yang <quic_kangyang at quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson at quicinc.com>