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Re: [PATCH] mac80211: Fix radiotap header channel flag for 6GHz band

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On 2020-09-11 00:36, Johannes Berg wrote:
On Fri, 2020-09-11 at 01:11 +0000, Aloka Dixit wrote:
Radiotap header field 'Channel flags' has '2 GHz spectrum' set to
'true' for 6GHz packet.
Change it to 5GHz as there isn't a separate option available for 6GHz.

Signed-off-by: Aloka Dixit <alokad@xxxxxxxxxxxxxx>
---
 net/mac80211/rx.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 836cde516a18..a959ebf56852 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -451,7 +451,8 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
 	else if (status->bw == RATE_INFO_BW_5)
 		channel_flags |= IEEE80211_CHAN_QUARTER;

-	if (status->band == NL80211_BAND_5GHZ)
+	if (status->band == NL80211_BAND_5GHZ ||
+	    status->band == NL80211_BAND_6GHZ)
 		channel_flags |= IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ;

I guess we should just not set any of those flags?

Not that anything even cares ... so there's no point in adding a 6GHz
flag to radiotap.

johannes

Separate flag for 6GHz would have been best option, but I still think better to set 5GHz as 6GHz frequencies start in 5GHz range.
Thanks.



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