RE: [PATCH v4 2/3] wifi: rtl8xxxu: Fix the channel width reporting

[Ping-Ke Shih <pkshih@realtek.com>]

> -----Original Message-----
> From: Bitterblue Smith <rtl8821cerfe2@gmail.com>
> Sent: Thursday, December 1, 2022 10:15 PM
> To: linux-wireless@vger.kernel.org
> Cc: Jes Sorensen <Jes.Sorensen@gmail.com>; Ping-Ke Shih <pkshih@realtek.com>
> Subject: [PATCH v4 2/3] wifi: rtl8xxxu: Fix the channel width reporting
> 
> The gen 2 chips RTL8192EU and RTL8188FU periodically send the driver
> reports about the TX rate, and the driver passes these reports to
> sta_statistics. The reports from RTL8192EU may or may not include the
> channel width. The reports from RTL8188FU do not include it.
> 
> Only access the c2h->ra_report.bw field if the report (skb) is big
> enough.
> 
> The other problem fixed here is that the code was actually never
> changing the channel width initially reported by
> rtl8xxxu_bss_info_changed because the value of RATE_INFO_BW_20 is 0.
> 
> Fixes: 0985d3a410ac ("rtl8xxxu: Feed current txrate information for mac80211")
> Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>

Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>

> ---
> v4:
>  - Use the more convenient offsetofend macro.
> 
> v3:
>  - Don't assume bw will always be 1 byte.
> 
> v2:
>  - Eliminate the magic numbers.
> ---

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