From: Sara Sharon <sara.sharon@intel.com>
Date: Mon, 19 Feb 2018 12:48:40 +0000 (+0200)
Subject: mac80211: add get TID helper
X-Git-Url: https://jxself.org/git/?a=commitdiff_plain;h=c60a8805f6ac6d6ff054c3ab39af6146bb1bc223;p=carl9170fw.git

mac80211: add get TID helper

Extracting the TID from the QOS header is common enough
to justify helper.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
---

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index c2c0eb0..e9efbaf 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -8,6 +8,7 @@
  * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
  * Copyright (c) 2013 - 2014 Intel Mobile Communications GmbH
  * Copyright (c) 2016 - 2017 Intel Deutschland GmbH
+ * Copyright (c) 2018        Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -2518,6 +2519,17 @@ static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
 		return (u8 *)hdr + 24;
 }
 
+/**
+ * ieee80211_get_tid - get qos TID
+ * @hdr: the frame
+ */
+static inline u8 ieee80211_get_tid(struct ieee80211_hdr *hdr)
+{
+	u8 *qc = ieee80211_get_qos_ctl(hdr);
+
+	return qc[0] & IEEE80211_QOS_CTL_TID_MASK;
+}
+
 /**
  * ieee80211_get_SA - get pointer to SA
  * @hdr: the frame