Arend van Spriel <arend.vanspriel@xxxxxxxxxxxx> wrote:
> An issue was reported in which periodically error messages are
> printed in the kernel log:
>
> [ 26.303445] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6
> [ 26.303554] brcmfmac mmc1:0001:1: Direct firmware load for brcm/brcmfmac43455-sdio.raspberrypi,3-model-b-plus.bin failed with error -2
> [ 26.516752] brcmfmac_wcc: brcmf_wcc_attach: executing
> [ 26.528264] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4345/6 wl0: Jan 4 2021 19:56:29 version 7.45.229 (617f1f5 CY) FWID 01-2dbd9d2e
> [ 27.076829] Bluetooth: hci0: BCM: features 0x2f
> [ 27.078592] Bluetooth: hci0: BCM43455 37.4MHz Raspberry Pi 3+
> [ 27.078601] Bluetooth: hci0: BCM4345C0 (003.001.025) build 0342
> [ 30.142104] Adding 102396k swap on /var/swap. Priority:-2 extents:1 across:102396k SS
> [ 30.590017] Bluetooth: MGMT ver 1.22
> [ 104.897615] brcmfmac: cfg80211_set_channel: set chanspec 0x100e fail, reason -52
> [ 104.897992] brcmfmac: cfg80211_set_channel: set chanspec 0xd022 fail, reason -52
> [ 105.007672] brcmfmac: cfg80211_set_channel: set chanspec 0xd026 fail, reason -52
> [ 105.117654] brcmfmac: cfg80211_set_channel: set chanspec 0xd02a fail, reason -52
> [ 105.227636] brcmfmac: cfg80211_set_channel: set chanspec 0xd02e fail, reason -52
> [ 106.987552] brcmfmac: cfg80211_set_channel: set chanspec 0xd090 fail, reason -52
> [ 106.987911] brcmfmac: cfg80211_set_channel: set chanspec 0xd095 fail, reason -52
> [ 106.988233] brcmfmac: cfg80211_set_channel: set chanspec 0xd099 fail, reason -52
> [ 106.988565] brcmfmac: cfg80211_set_channel: set chanspec 0xd09d fail, reason -52
> [ 106.988909] brcmfmac: cfg80211_set_channel: set chanspec 0xd0a1 fail, reason -52
>
> This happens in brcmf_cfg80211_dump_survey() because we try a disabled
> channel. When channel is marked as disabled we do not need to fill any
> other info so bail out.
>
> Fixes: 6c04deae1438 ("brcmfmac: Add dump_survey cfg80211 ops for HostApd AutoChannelSelection")
> Reported-by: Stefan Wahren <stefan.wahren@xxxxxxxx>
> Signed-off-by: Arend van Spriel <arend.vanspriel@xxxxxxxxxxxx>
> Tested-by: Stefan Wahren <stefan.wahren@xxxxxxxx>
2 patches applied to wireless.git, thanks.
e5d1ab1a73ad wifi: brcmfmac: avoid handling disabled channels for survey dump
aadb50d15712 wifi: brcmfmac: avoid NULL-deref in survey dump for 2G only device
--
https://patchwork.kernel.org/project/linux-wireless/patch/20230103124117.271988-2-arend.vanspriel@xxxxxxxxxxxx/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
