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mac80211: radiotap: assume modulation from rates 

use the rates ERP flag to derive CCK or OFDM modulation for the radiotap
header.

(it might be more correct to get this information from the hardware itself, but it
seems safe to assume this in most practical cases.)

Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Bruno Randolf 2008-07-30 17:20:06 +02:00 committed by John W. Linville
parent b4f28bbb9b
commit 9deb1ae572
1 changed files with 4 additions and 1 deletions
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5
net/mac80211/rx.c
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@ -157,8 +157,11 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
if (status->band == IEEE80211_BAND_5GHZ)
*(__le16 *)pos = cpu_to_le16(IEEE80211_CHAN_OFDM |
IEEE80211_CHAN_5GHZ);
else if (rate->flags & IEEE80211_RATE_ERP_G)
*(__le16 *)pos = cpu_to_le16(IEEE80211_CHAN_OFDM |
IEEE80211_CHAN_2GHZ);
else
*(__le16 *)pos = cpu_to_le16(IEEE80211_CHAN_DYN |
*(__le16 *)pos = cpu_to_le16(IEEE80211_CHAN_CCK |
IEEE80211_CHAN_2GHZ);
pos += 2;