IEEE80211_RADIOTAP_DBM_ANTSIGNAL
ipw_rt->rt_hdr.it_present = cpu_to_le32(1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL);
(1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) |
(1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) |
BIT(IEEE80211_RADIOTAP_DBM_ANTSIGNAL);
cpu_to_le32(BIT(IEEE80211_RADIOTAP_DBM_ANTSIGNAL));
[IEEE80211_RADIOTAP_DBM_ANTSIGNAL] = { .align = 1, .size = 1, },