cfg80211: ibss: use 11a mandatory rates for 6GHz band operation

The default mandatory rates, ie. when not specified by user-space, is
determined by the band. Select 11a rateset for 6GHz band.

Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Leon Zegers <leon.zegers@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Link: https://lore.kernel.org/r/1564745465-21234-8-git-send-email-arend.vanspriel@broadcom.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 11 insertions, 5 deletions

diff --git a/net/wireless/ibss.c b/net/wireless/ibss.c
index d1743e6abc34..ae8fe66a9bb8 100644
--- a/net/wireless/ibss.c
+++ b/net/wireless/ibss.c
@@ -104,13 +104,19 @@ int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
                 * use the mandatory rate set for 11b or
                 * 11a for maximum compatibility.
                 */
-                struct ieee80211_supported_band *sband =
-                        rdev->wiphy.bands[params->chandef.chan->band];
+                struct ieee80211_supported_band *sband;
+                enum nl80211_band band;
+                u32 flag;
                 int j;
-                u32 flag = params->chandef.chan->band == NL80211_BAND_5GHZ ?
-                        IEEE80211_RATE_MANDATORY_A :
-                        IEEE80211_RATE_MANDATORY_B;
 
+                band = params->chandef.chan->band;
+                if (band == NL80211_BAND_5GHZ ||
+                    band == NL80211_BAND_6GHZ)
+                        flag = IEEE80211_RATE_MANDATORY_A;
+                else
+                        flag = IEEE80211_RATE_MANDATORY_B;
+
+                sband = rdev->wiphy.bands[band];
                 for (j = 0; j < sband->n_bitrates; j++) {
                         if (sband->bitrates[j].flags & flag)
                                 params->basic_rates |= BIT(j);