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authorBruno Randolf <br1@einfach.org>2008-07-30 17:20:06 +0200
committerJohn W. Linville <linville@tuxdriver.com>2008-08-22 16:29:50 -0400
commit9deb1ae572364a37d054d916c5bae858f91a3f9a (patch)
tree5ec264a7d19694940ae1da97a7aaca32d6499418 /net/mac80211/rx.c
parentb4f28bbb9bf0b2c829ecf97ce2173f204fde4f10 (diff)
downloadlwn-9deb1ae572364a37d054d916c5bae858f91a3f9a.tar.gz
lwn-9deb1ae572364a37d054d916c5bae858f91a3f9a.zip
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>
Diffstat (limited to 'net/mac80211/rx.c')
-rw-r--r--net/mac80211/rx.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index ad47a614a202..60e9ea11115f 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -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;