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mac80211: remove HW_SIGNAL_DB

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Giving the signal in dB isn't much more useful to userspace
than giving the signal in unspecified units. This removes
some radiotap information for zd1211 (the only driver using
this flag), but it helps a lot for getting cfg80211-based
scanning which won't support dB, and zd1211 being dB is a
little fishy anyway.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Cc: Bruno Randolf <bruno@thinktube.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg
2009-01-30 11:13:06 +01:00
committed by John W. Linville
parent 7a7dec6562
commit 7fee5372d8
5 changed files with 11 additions and 28 deletions
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11
net/mac80211/rx.c
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@@ -86,8 +86,7 @@ ieee80211_rx_radiotap_len(struct ieee80211_local *local,
if (status->flag & RX_FLAG_TSFT)
len += 8;
if (local->hw.flags & IEEE80211_HW_SIGNAL_DB ||
local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
len += 1;
if (local->hw.flags & IEEE80211_HW_NOISE_DBM)
len += 1;
@@ -199,14 +198,6 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
*pos = status->antenna;
pos++;
/* IEEE80211_RADIOTAP_DB_ANTSIGNAL */
if (local->hw.flags & IEEE80211_HW_SIGNAL_DB) {
*pos = status->signal;
rthdr->it_present |=
cpu_to_le32(1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL);
pos++;
}
/* IEEE80211_RADIOTAP_DB_ANTNOISE is not used */
/* IEEE80211_RADIOTAP_RX_FLAGS */