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mac80211: add get TID helper

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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>
This commit is contained in:
Sara Sharon
2018-02-19 14:48:40 +02:00
committed by Johannes Berg
parent 7299d6f7bf
commit a1f2ba04cc
8 changed files with 23 additions and 21 deletions
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12
include/linux/ieee80211.h
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@@ -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
@@ -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