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ieee80211: Introduce ieee80211_is_first_frag

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Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Helmut Schaa 2011-12-08 13:11:54 +01:00 • committed by John W. Linville
commit 8cb25e14fe
1 changed files with 9 additions and 0 deletions
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9
include/linux/ieee80211.h
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@ -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;