Re: [PATCH] staging: wfx: fix scan with WFM200 and WW regulation

Jérôme Pouiller
2022-02-18T10:58:04Z

On Friday 18 February 2022 11:53:58 CET Jerome Pouiller wrote:
> From: Riccardo Ferrazzo <rferrazzo@came.com>
>
> Some variants of the WF200 disallow active scan on channel 12 and 13.
> For these parts, the channels 12 and 13 are marked IEEE80211_CHAN_NO_IR.
>
> However, the beacon hint procedure was removing the flag
> IEEE80211_CHAN_NO_IR from channels where a BSS is discovered. This was
> making subsequent scans to fail because the driver was trying active
> scans on prohibited channels.
>
> Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>

I forgot to mention I have reviewed on this patch:

Reviewed-by: Jérôme Pouiller <jerome.pouiller@silabs.com>

> ---
> drivers/staging/wfx/main.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/staging/wfx/main.c b/drivers/staging/wfx/main.c
> index d832a22850c7..5999e81dc44d 100644
> --- a/drivers/staging/wfx/main.c
> +++ b/drivers/staging/wfx/main.c
> @@ -381,6 +381,7 @@ int wfx_probe(struct wfx_dev *wdev)
> }
>
> if (wdev->hw_caps.region_sel_mode) {
> + wdev->hw->wiphy->regulatory_flags |= REGULATORY_DISABLE_BEACON_HINTS;
> wdev->hw->wiphy->bands[NL80211_BAND_2GHZ]->channels[11].flags |=
> IEEE80211_CHAN_NO_IR;
> wdev->hw->wiphy->bands[NL80211_BAND_2GHZ]->channels[12].flags |=