cfg80211: remove 80+80 MHz rate reporting

These rates are treated the same as 160 MHz in the spec, so
it makes no sense to distinguish them. As no driver uses them
yet, this is also not a problem, just remove them.

In the userspace API the field remains reserved to preserve
API and ABI.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

4 files changed, 6 insertions, 11 deletions

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 38abc07503fd..0322048fddab 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -875,7 +875,6 @@ int cfg80211_check_station_change(struct wiphy *wiphy,
  * @RATE_INFO_FLAGS_VHT_MCS: mcs field filled with VHT MCS
  * @RATE_INFO_FLAGS_40_MHZ_WIDTH: 40 MHz width transmission
  * @RATE_INFO_FLAGS_80_MHZ_WIDTH: 80 MHz width transmission
- * @RATE_INFO_FLAGS_80P80_MHZ_WIDTH: 80+80 MHz width transmission
  * @RATE_INFO_FLAGS_160_MHZ_WIDTH: 160 MHz width transmission
  * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval
  * @RATE_INFO_FLAGS_60G: 60GHz MCS
@@ -885,10 +884,9 @@ enum rate_info_flags {
         RATE_INFO_FLAGS_VHT_MCS                 = BIT(1),
         RATE_INFO_FLAGS_40_MHZ_WIDTH            = BIT(2),
         RATE_INFO_FLAGS_80_MHZ_WIDTH            = BIT(3),
-        RATE_INFO_FLAGS_80P80_MHZ_WIDTH         = BIT(4),
-        RATE_INFO_FLAGS_160_MHZ_WIDTH           = BIT(5),
-        RATE_INFO_FLAGS_SHORT_GI                = BIT(6),
-        RATE_INFO_FLAGS_60G                     = BIT(7),
+        RATE_INFO_FLAGS_160_MHZ_WIDTH           = BIT(4),
+        RATE_INFO_FLAGS_SHORT_GI                = BIT(5),
+        RATE_INFO_FLAGS_60G                     = BIT(6),
 };
 
 /**
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index b6c1a00bd8d2..11cdb85ac646 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -2278,7 +2278,8 @@ struct nl80211_sta_flag_update {
  * @NL80211_RATE_INFO_VHT_MCS: MCS index for VHT (u8)
  * @NL80211_RATE_INFO_VHT_NSS: number of streams in VHT (u8)
  * @NL80211_RATE_INFO_80_MHZ_WIDTH: 80 MHz VHT rate
- * @NL80211_RATE_INFO_80P80_MHZ_WIDTH: 80+80 MHz VHT rate
+ * @NL80211_RATE_INFO_80P80_MHZ_WIDTH: unused - 80+80 is treated the
+ *      same as 160 for purposes of the bitrates
  * @NL80211_RATE_INFO_160_MHZ_WIDTH: 160 MHz VHT rate
  * @__NL80211_RATE_INFO_AFTER_LAST: internal use
  */
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 380784378df8..8998484ea970 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -3614,9 +3614,6 @@ static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
                 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
                     nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
                         return false;
-                if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
-                    nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
-                        return false;
                 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
                     nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
                         return false;
diff --git a/net/wireless/util.c b/net/wireless/util.c
index d0ac795445b7..6942d48f1ac5 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -1073,8 +1073,7 @@ static u32 cfg80211_calculate_bitrate_vht(struct rate_info *rate)
         if (WARN_ON_ONCE(rate->mcs > 9))
                 return 0;
 
-        idx = rate->flags & (RATE_INFO_FLAGS_160_MHZ_WIDTH |
-                             RATE_INFO_FLAGS_80P80_MHZ_WIDTH) ? 3 :
+        idx = rate->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH ? 3 :
                   rate->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH ? 2 :
                   rate->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH ? 1 : 0;