cfg80211: allow passing frame type to cfg80211_inform_bss()

When using the cfg80211_inform_bss[_width]() functions drivers
cannot currently indicate whether the data was received in a
beacon or probe response. Fix that by passing a new enum that
indicates such (or unknown).

For good measure, use it in ath6kl.

Acked-by: Kalle Valo <kvalo@qca.qualcomm.com> [ath6kl]
Acked-by: Arend van Spriel <arend@broadcom.com> [brcmfmac]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 13 insertions, 2 deletions

diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index ad1a1a2808d3..620a4b40d466 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -884,6 +884,7 @@ struct cfg80211_bss*
 cfg80211_inform_bss_width(struct wiphy *wiphy,
                           struct ieee80211_channel *rx_channel,
                           enum nl80211_bss_scan_width scan_width,
+                          enum cfg80211_bss_frame_type ftype,
                           const u8 *bssid, u64 tsf, u16 capability,
                           u16 beacon_interval, const u8 *ie, size_t ielen,
                           s32 signal, gfp_t gfp)
@@ -911,7 +912,7 @@ cfg80211_inform_bss_width(struct wiphy *wiphy,
         tmp.pub.beacon_interval = beacon_interval;
         tmp.pub.capability = capability;
         /*
-         * Since we do not know here whether the IEs are from a Beacon or Probe
+         * If we do not know here whether the IEs are from a Beacon or Probe
          * Response frame, we need to pick one of the options and only use it
          * with the driver that does not provide the full Beacon/Probe Response
          * frame. Use Beacon frame pointer to avoid indicating that this should
@@ -926,7 +927,17 @@ cfg80211_inform_bss_width(struct wiphy *wiphy,
         ies->from_beacon = false;
         memcpy(ies->data, ie, ielen);
 
-        rcu_assign_pointer(tmp.pub.beacon_ies, ies);
+        switch (ftype) {
+        case CFG80211_BSS_FTYPE_BEACON:
+                ies->from_beacon = true;
+                /* fall through to assign */
+        case CFG80211_BSS_FTYPE_UNKNOWN:
+                rcu_assign_pointer(tmp.pub.beacon_ies, ies);
+                break;
+        case CFG80211_BSS_FTYPE_PRESP:
+                rcu_assign_pointer(tmp.pub.proberesp_ies, ies);
+                break;
+        }
         rcu_assign_pointer(tmp.pub.ies, ies);
 
         signal_valid = abs(rx_channel->center_freq - channel->center_freq) <=