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authorLuis R. Rodriguez <lrodriguez@atheros.com>2010-01-08 01:24:55 +0300
committerJohn W. Linville <linville@tuxdriver.com>2010-01-15 02:16:53 +0300
commite99c7cd57b2481ee36b2338040e3ce1cd17e0763 (patch)
treec4571af4478a1b020702b361aec4bd6e34f4ec58 /net/wireless
parent6021e08db47386507108a475e6c820a7006a4632 (diff)
downloadlinux-e99c7cd57b2481ee36b2338040e3ce1cd17e0763.tar.xz
cfg80211: fix 2 GHz subband calculation for country IEs
Country IEs triplets are getting an extra channel with the current count. This does not affect regulatory because we always took the intersection between what the AP gave and what CRDA believed is correct. This however does fix processing some Country IEs with multiple sequential 2 GHz triplets. Since our parser and the spec mandates all channels be monitonically increasing we would drop the IE after noticing the second triplet begins on a channel already processed. APs that send these type of country IEs seems rare though. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/wireless')
-rw-r--r--net/wireless/reg.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index a5c2d3a6cbb2..f0859eada758 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -740,7 +740,7 @@ static struct ieee80211_regdomain *country_ie_2_rd(
/* 2 GHz */
if (triplet->chans.first_channel <= 14)
end_channel = triplet->chans.first_channel +
- triplet->chans.num_channels;
+ triplet->chans.num_channels - 1;
else
/*
* 5 GHz -- For example in country IEs if the first
@@ -863,7 +863,7 @@ static struct ieee80211_regdomain *country_ie_2_rd(
/* 2 GHz */
if (triplet->chans.first_channel <= 14)
end_channel = triplet->chans.first_channel +
- triplet->chans.num_channels;
+ triplet->chans.num_channels -1;
else
end_channel = triplet->chans.first_channel +
(4 * (triplet->chans.num_channels - 1));