mac80211: split sched scan IEs

Split sched scan IEs to band specific and not band specific
blocks. Common IEs blocks may be sent to the FW once per command,
instead of per band.

This allows optimization of size of the command, which may be
required by some drivers (eg. iwlmvm with newer firmware version).

As this changes the mac80211 API, update all drivers to use the
new version correctly, even if they don't (yet) make use of the
split data.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Reviewed-by: Alexander Bondar <alexander.bondar@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 4 insertions, 19 deletions

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 9536ee3..545d2fa 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -754,26 +754,11 @@ struct ieee80211_tx_info {
 };
 
 /**
- * struct ieee80211_sched_scan_ies - scheduled scan IEs
- *
- * This structure is used to pass the appropriate IEs to be used in scheduled
- * scans for all bands.  It contains both the IEs passed from the userspace
- * and the ones generated by mac80211.
- *
- * @ie: array with the IEs for each supported band
- * @len: array with the total length of the IEs for each band
- */
-struct ieee80211_sched_scan_ies {
-	u8 *ie[IEEE80211_NUM_BANDS];
-	size_t len[IEEE80211_NUM_BANDS];
-};
-
-/**
  * struct ieee80211_scan_ies - descriptors for different blocks of IEs
  *
- * This structure is used to point to different blocks of IEs in HW scan.
- * These blocks contain the IEs passed by userspace and the ones generated
- * by mac80211.
+ * This structure is used to point to different blocks of IEs in HW scan
+ * and scheduled scan. These blocks contain the IEs passed by userspace
+ * and the ones generated by mac80211.
  *
  * @ies: pointers to band specific IEs.
  * @len: lengths of band_specific IEs.
@@ -2917,7 +2902,7 @@ struct ieee80211_ops {
 	int (*sched_scan_start)(struct ieee80211_hw *hw,
 				struct ieee80211_vif *vif,
 				struct cfg80211_sched_scan_request *req,
-				struct ieee80211_sched_scan_ies *ies);
+				struct ieee80211_scan_ies *ies);
 	int (*sched_scan_stop)(struct ieee80211_hw *hw,
 			       struct ieee80211_vif *vif);
 	void (*sw_scan_start)(struct ieee80211_hw *hw);