Driver may allow support for different beacon interval on virtual interfaces.
Allow if such support is advertised by driver. This adds new ext_feature as
NL80211_EXT_FEATURE_DIFF_BEACON_INTERVAL.
Signed-off-by: Purushottam Kushwaha <pkushwah@xxxxxxxxxxxxxxxx>
---
include/uapi/linux/nl80211.h | 3 +++
net/wireless/util.c | 4 ++++
2 files changed, 7 insertions(+)
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 2206941..a910d0e 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -4551,6 +4551,8 @@ enum nl80211_feature_flags {
* (if available).
* @NL80211_EXT_FEATURE_SET_SCAN_DWELL: This driver supports configuration of
* channel dwell time.
+ * @NL80211_EXT_FEATURE_DIFF_BEACON_INTERVAL: This driver supports different
+ * beacon interval on virtual interfaces.
*
* @NUM_NL80211_EXT_FEATURES: number of extended features.
* @MAX_NL80211_EXT_FEATURES: highest extended feature index.
@@ -4562,6 +4564,7 @@ enum nl80211_ext_feature_index {
NL80211_EXT_FEATURE_SCAN_START_TIME,
NL80211_EXT_FEATURE_BSS_PARENT_TSF,
NL80211_EXT_FEATURE_SET_SCAN_DWELL,
+ NL80211_EXT_FEATURE_DIFF_BEACON_INTERVAL,
/* add new features before the definition below */
NUM_NL80211_EXT_FEATURES,
diff --git a/net/wireless/util.c b/net/wireless/util.c
index 2443ee3..65eeb23 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -1560,6 +1560,10 @@ int cfg80211_validate_beacon_int(struct cfg80211_registered_device *rdev,
if (!beacon_int)
return -EINVAL;
+ if (wiphy_ext_feature_isset(&rdev->wiphy,
+ NL80211_EXT_FEATURE_DIFF_BEACON_INTERVAL))
+ return 0;
+
list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
if (!wdev->beacon_interval)
continue;
--
1.9.1
--
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