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bf76b144fe
Currently, when using WCN7850 or QCN9274 as AP, ath12k always performs down grade phy mode operation regardless of whether the firmware supports EHT capability or not and then vdev will start in HE mode. When stations that support EHT capability try to connect to the AP, the AP will set phy mode to EHT after receiving the association request packet, and then send WMI_PEER_ASSOC_CMDID command to firmware, AP’s firmware will crash. This is because when the ath12k_mac_copy_sband_iftype_data() function handles EHT capability, it does not copy the EHT capability into the iftype[band][type] array according to the interface type. So, interface type should not be used as an index to get eht_cap in ath12k_mac_check_down_grade_phy_mode() function. To address this issue, use types_mask to select the eht_cap in ath12k_mac_check_down_grade_phy_mode() function. This patch affects QCN9274 and WCN7850 because they have the same issue. Hostapd log: wlo1: STA 02:03:7f:37:12:34 IEEE 802.11: Could not set STA to kernel driver Kernel log: [270894.816076] ath12k_pci 0000:03:00.0: failed to send WMI_PEER_SET_PARAM cmd [270894.816111] ath12k_pci 0000:03:00.0: failed to setup peer SMPS for vdev 0: -108 [270894.816122] ath12k_pci 0000:03:00.0: Failed to associate station: 02:03:7f:37:12:34 [270894.843389] ieee80211 phy5: Hardware restart was requested [270894.843517] ath12k_pci 0000:03:00.0: failed to lookup peer 02:03:7f:37:12:34 on vdev 0 [270894.843616] ath12k_pci 0000:03:00.0: failed to send WMI_PEER_DELETE cmd [270894.843650] ath12k_pci 0000:03:00.0: failed to delete peer vdev_id 0 addr 02:03:7f:37:12:34 ret -108 [270894.843663] ath12k_pci 0000:03:00.0: Failed to delete peer: 02:03:7f:37:12:34 for VDEV: 0 Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1 Signed-off-by: Lingbo Kong <quic_lingbok@quicinc.com> Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com> Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://msgid.link/20240425083837.5340-1-quic_lingbok@quicinc.com |
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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.