mac80211: give virtual interface to hw_scan

When scanning, it is somewhat important to scan
on the correct virtual interface. All drivers
that currently implement hw_scan only support a
single virtual interface, but that may change
and then we'd want to be ready.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

3 files changed, 11 insertions, 7 deletions

diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index d1f8a7c2225a..997008e236ff 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -154,14 +154,15 @@ static inline void drv_update_tkip_key(struct ieee80211_local *local,
 }
 
 static inline int drv_hw_scan(struct ieee80211_local *local,
+                              struct ieee80211_sub_if_data *sdata,
                               struct cfg80211_scan_request *req)
 {
         int ret;
 
         might_sleep();
 
-        ret = local->ops->hw_scan(&local->hw, req);
-        trace_drv_hw_scan(local, req, ret);
+        ret = local->ops->hw_scan(&local->hw, &sdata->vif, req);
+        trace_drv_hw_scan(local, sdata, req, ret);
         return ret;
 }
 
diff --git a/net/mac80211/driver-trace.h b/net/mac80211/driver-trace.h
index e209cb82ff29..ce734b58d07a 100644
--- a/net/mac80211/driver-trace.h
+++ b/net/mac80211/driver-trace.h
@@ -363,23 +363,26 @@ TRACE_EVENT(drv_update_tkip_key,
 
 TRACE_EVENT(drv_hw_scan,
         TP_PROTO(struct ieee80211_local *local,
+                 struct ieee80211_sub_if_data *sdata,
                  struct cfg80211_scan_request *req, int ret),
 
-        TP_ARGS(local, req, ret),
+        TP_ARGS(local, sdata, req, ret),
 
         TP_STRUCT__entry(
                 LOCAL_ENTRY
+                VIF_ENTRY
                 __field(int, ret)
         ),
 
         TP_fast_assign(
                 LOCAL_ASSIGN;
+                VIF_ASSIGN;
                 __entry->ret = ret;
         ),
 
         TP_printk(
-                LOCAL_PR_FMT " ret:%d",
-                LOCAL_PR_ARG, __entry->ret
+                LOCAL_PR_FMT VIF_PR_FMT " ret:%d",
+                LOCAL_PR_ARG,VIF_PR_ARG, __entry->ret
         )
 );
 
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index eb86a5f6e645..2b1f1f3d6a58 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -410,7 +410,7 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata,
 
         if (local->ops->hw_scan) {
                 WARN_ON(!ieee80211_prep_hw_scan(local));
-                rc = drv_hw_scan(local, local->hw_scan_req);
+                rc = drv_hw_scan(local, sdata, local->hw_scan_req);
         } else
                 rc = ieee80211_start_sw_scan(local);
 
@@ -654,7 +654,7 @@ void ieee80211_scan_work(struct work_struct *work)
         }
 
         if (local->hw_scan_req) {
-                int rc = drv_hw_scan(local, local->hw_scan_req);
+                int rc = drv_hw_scan(local, sdata, local->hw_scan_req);
                 mutex_unlock(&local->scan_mtx);
                 if (rc)
                         ieee80211_scan_completed(&local->hw, true);