From 8cb25e14fe80d0fac42412364df573eb3e8e83cc Mon Sep 17 00:00:00 2001 From: Helmut Schaa Date: Thu, 8 Dec 2011 13:11:54 +0100 Subject: [PATCH] ieee80211: Introduce ieee80211_is_first_frag Signed-off-by: Helmut Schaa Signed-off-by: John W. Linville --- include/linux/ieee80211.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index 17f2a76..210e2c3 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -544,6 +544,15 @@ static inline int ieee80211_is_qos_nullfunc(__le16 fc) cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC); } +/** + * ieee80211_is_first_frag - check if IEEE80211_SCTL_FRAG is not set + * @seq_ctrl: frame sequence control bytes in little-endian byteorder + */ +static inline int ieee80211_is_first_frag(__le16 seq_ctrl) +{ + return (seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0; +} + struct ieee80211s_hdr { u8 flags; u8 ttl; -- 2.7.4