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This patch removes a check in ifconfig which disables HT/40 channels

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on frequency bands with DFS. All Atheros chipsets >= AR9001 support
radar event detection on HT40 extension channels.

This should be a chipset specific item rather than enforced in the
regulatory domain database.

In addition, it's irrelevant for STA mode, as the radar detection is
done by the access point, not the STA.

Approved by:	re (kib)
This commit is contained in:
adrian 2011-07-20 05:59:28 +00:00
parent 18fcf58be0
commit e1c30fa66e
1 changed files with 0 additions and 12 deletions
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12
sbin/ifconfig/ifieee80211.c
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@ -2027,18 +2027,6 @@ regdomain_addchans(struct ieee80211req_chaninfo *ci,
"HT40 channel\n", freq);
continue;
}
/*
* DFS and HT40 don't mix. This should be
* expressed in the regdomain database but
* just in case enforce it here.
*/
if ((chanFlags & IEEE80211_CHAN_HT40) &&
(flags & IEEE80211_CHAN_DFS)) {
if (verbose)
printf("%u: skip, HT40+DFS "
"not permitted\n", freq);
continue;
}
/* NB: HT attribute comes from caller */
flags &= ~IEEE80211_CHAN_HT;
flags |= chanFlags & IEEE80211_CHAN_HT;