From a1f2ba04cc92414b6b933289365eab878b0b2bf4 Mon Sep 17 00:00:00 2001 From: Sara Sharon Date: Mon, 19 Feb 2018 14:48:40 +0200 Subject: mac80211: add get TID helper Extracting the TID from the QOS header is common enough to justify helper. Signed-off-by: Sara Sharon Signed-off-by: Luca Coelho Signed-off-by: Johannes Berg --- include/linux/ieee80211.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'include') diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index e4cba332b705..8fe7e4306816 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -8,6 +8,7 @@ * Copyright (c) 2006, Michael Wu * 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 @@ -2501,6 +2502,17 @@ 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 -- cgit v1.2.3