X-Git-Url: https://jxself.org/git/?a=blobdiff_plain;f=include%2Flinux%2Fieee80211.h;h=6729ad02e2398f785692c7b7450fa36ae8915ebc;hb=3d744935c5ad5735c5a5ea0486e0c6389aa2c94f;hp=d2d4435610290efd3b6005fd277110149879ad95;hpb=83cf639325d2819ac04cae9c086b7062da60b762;p=carl9170fw.git

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index d2d4435..6729ad0 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -1724,6 +1724,23 @@ static inline bool ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
 	return false;
 }
 
+/**
+ * ieee80211_is_public_action - check if frame is a public action frame
+ * @hdr: the frame
+ * @len: length of the frame
+ */
+static inline bool ieee80211_is_public_action(struct ieee80211_hdr *hdr,
+					      size_t len)
+{
+	struct ieee80211_mgmt *mgmt = (void *)hdr;
+
+	if (len < IEEE80211_MIN_ACTION_SIZE)
+		return false;
+	if (!ieee80211_is_action(hdr->frame_control))
+		return false;
+	return mgmt->u.action.category == WLAN_CATEGORY_PUBLIC;
+}
+
 /**
  * ieee80211_fhss_chan_to_freq - get channel frequency
  * @channel: the FHSS channel