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Currently when resume ath12k_core_restart() calls ath12k_core_pre_reconfigure_recovery() where mac80211 queues are stopped by calling ieee80211_stop_queues(). Then in ath12k_mac_op_reconfig_complete() those queues are not started because ieee80211_wake_queues() is skipped due to the check on reconfig_type. The result is that mac80211 could not deliver any frame to ath12k to send out, finally making connection fail. [84473.104249] PM: suspend exit [84479.372397] wlan0: no VHT 160 MHz capability on 5 GHz, limiting to 80 MHz [84479.372401] wlan0: determined local STA to be EHT, BW limited to 80 MHz [84479.372416] wlan0: determined AP 00:03:7f:12:b7:b7 to be HE [84479.372420] wlan0: connecting with HE mode, max bandwidth 80 MHz [84479.580348] wlan0: authenticate with 00:03:7f:12:b7:b7 (local address=00:03:7f:37:11:53) [84479.580351] wlan0: send auth to 00:03:7f:12:b7:b7 (try 1/3) [84480.698993] wlan0: send auth to 00:03:7f:12:b7:b7 (try 2/3) [84481.816505] wlan0: send auth to 00:03:7f:12:b7:b7 (try 3/3) [84482.810966] wlan0: authentication with 00:03:7f:12:b7:b7 timed out Actually we don't need to stop/start queues during suspend/resume, so remove ath12k_core_pre_reconfigure_recovery() from ath12k_core_restart(). This won't cause any regression because currently the only chance ath12k_core_restart() gets called is in reset case, where ab->is_reset is set so that function will never be executed. Also remove ath12k_core_post_reconfigure_recovery() because it is not needed in suspend/resume case. This is also valid due to above analysis. Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4 Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1 Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://msgid.link/20240412060620.27519-9-quic_bqiang@quicinc.com
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.