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cfg80211: check no-OFDM flag for channels wider than 20 MHz
author
Johannes Berg
<johannes.berg@intel.com>
Tue, 4 Dec 2012 19:49:42 +0000
(20:49 +0100)
committer
Johannes Berg
<johannes.berg@intel.com>
Tue, 4 Dec 2012 19:51:27 +0000
(20:51 +0100)
For channels wider than 20 MHz OFDM will be used, so when
checking whether or not a channel is usable, check for the
no-OFDM flag if the channel is wider than 20 MHz.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
net/wireless/chan.c
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diff --git
a/net/wireless/chan.c
b/net/wireless/chan.c
index
b5f6983
..
a7990bb
100644
(file)
--- a/
net/wireless/chan.c
+++ b/
net/wireless/chan.c
@@
-265,6
+265,9
@@
bool cfg80211_chandef_usable(struct wiphy *wiphy,
/* TODO: missing regulatory check on 80/160 bandwidth */
+ if (width > 20)
+ prohibited_flags |= IEEE80211_CHAN_NO_OFDM;
+
if (!cfg80211_secondary_chans_ok(wiphy, chandef->center_freq1,
width, prohibited_flags))
return false;