5a10537cbf
When request scan with duration 120ms on channel 1, it failed with scan abort easily. Because scan_timeout is set to 130ms for the scan in ath10k_hw_scan(), and timed out before scan complete, so lead scan abort. failed log of ath10k: 2021-04-14T14:43:29.936058Z DEBUG kernel: [67384.594846] ath10k_sdio mmc1:0001:1: wmi tlv start scan 2021-04-14T14:43:29.937896Z DEBUG kernel: [67384.595820] ath10k_sdio mmc1:0001:1: scan event started type 1 reason 7 freq 2437 req_id 40961 scan_id 40960 vdev_id 0 state starting (1) 2021-04-14T14:43:29.938357Z DEBUG kernel: [67384.596761] ath10k_sdio mmc1:0001:1: scan event bss channel type 4 reason 7 freq 2437 req_id 40961 scan_id 40960 vdev_id 0 state running (2) 2021-04-14T14:43:29.992497Z DEBUG kernel: [67384.651013] ath10k_sdio mmc1:0001:1: scan event foreign channel type 8 reason 7 freq 2412 req_id 40961 scan_id 40960 vdev_id 0 state running (2) 2021-04-14T14:43:30.063530Z DEBUG kernel: [67384.722139] ath10k_sdio mmc1:0001:1: wmi tlv stop scan 2021-04-14T14:43:30.066592Z DEBUG kernel: [67384.724403] ath10k_sdio mmc1:0001:1: scan event completed [cancelled] type 2 reason 1 freq 2412 req_id 40961 scan_id 40960 vdev_id 0 state aborting (3) failed log of wpa_supplicant: 2021-04-14T14:43:29.981842Z DEBUG wpa_supplicant[887]: wlan0: nl80211: scan request 2021-04-14T14:43:29.981988Z DEBUG wpa_supplicant[887]: nl80211: Passive scan requested 2021-04-14T14:43:29.982202Z DEBUG wpa_supplicant[887]: nl80211: Add NL80211_SCAN_FLAG_FLUSH 2021-04-14T14:43:29.982339Z DEBUG wpa_supplicant[887]: Scan requested (ret=0) - scan timeout 30 seconds 2021-04-14T14:43:29.982491Z DEBUG wpa_supplicant[887]: nl80211: Drv Event 33 (NL80211_CMD_TRIGGER_SCAN) received for wlan0 2021-04-14T14:43:29.982629Z DEBUG wpa_supplicant[887]: wlan0: nl80211: Scan trigger 2021-04-14T14:43:29.982779Z DEBUG wpa_supplicant[887]: wlan0: Event SCAN_STARTED (47) received 2021-04-14T14:43:29.982920Z DEBUG wpa_supplicant[887]: wlan0: Own scan request started a scan in 0.000175 seconds 2021-04-14T14:43:30.082401Z DEBUG wpa_supplicant[887]: nl80211: Drv Event 35 (NL80211_CMD_SCAN_ABORTED) received for wlan0 2021-04-14T14:43:30.082704Z DEBUG wpa_supplicant[887]: wlan0: nl80211: Scan aborted 2021-04-14T14:43:30.082905Z DEBUG wpa_supplicant[887]: nl80211: Scan included frequencies: 2412 2021-04-14T14:43:30.083123Z DEBUG wpa_supplicant[887]: wlan0: Event SCAN_RESULTS (3) received 2021-04-14T14:43:30.083310Z DEBUG wpa_supplicant[887]: wlan0: Scan completed in 0.128655 seconds This is to increase the scan_timeout with 200ms for this situation, then scan will not timed out for this situation. Tested-on: QCA6174 hw3.2 SDIO WLAN.RMH.4.4.1-00049 Signed-off-by: Wen Gong <quic_wgong@quicinc.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/20211026025902.26621-1-quic_wgong@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 Restructured Text 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.