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authorLuis R. Rodriguez <lrodriguez@atheros.com>2010-09-25 03:59:57 +0200
committerJohn W. Linville <linville@tuxdriver.com>2010-09-28 21:47:55 +0200
commit8d4780eb1ece4e8109b4f6b2e5e61f7fc593c3f4 (patch)
tree4d68c0dea0d852cddc64e0d65a2d303c918c0e6d /net/mac80211
parentwl12xx: fix separate-object-folder builds (diff)
downloadlinux-8d4780eb1ece4e8109b4f6b2e5e61f7fc593c3f4.tar.xz
linux-8d4780eb1ece4e8109b4f6b2e5e61f7fc593c3f4.zip
mac80211: fix offchannel assumption upon association
Association is dealt with as an atomic offchannel operation, we do this because we don't know we are associated until we get the associatin response from the AP. When we do get the associatin response though we were never clearing the offchannel state. This has a few implications, we told drivers we were still offchannel, and the first configured TX power for the channel does not take into account any power constraints. For ath9k this meant ANI calibration would not start upon association, and we'd have to wait until the first bgscan to be triggered. There may be other issues this resolves but I'm too lazy to comb the code to check. Cc: stable@kernel.org Cc: Amod Bodas <amod.bodas@atheros.com> Cc: Vasanth Thiagarajan <vasanth.thiagarajan@atheros.com> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/main.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 7c8542627351..e24fa5be4264 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -110,7 +110,8 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
chan = scan_chan;
channel_type = NL80211_CHAN_NO_HT;
local->hw.conf.flags |= IEEE80211_CONF_OFFCHANNEL;
- } else if (local->tmp_channel) {
+ } else if (local->tmp_channel &&
+ local->oper_channel != local->tmp_channel) {
chan = scan_chan = local->tmp_channel;
channel_type = local->tmp_channel_type;
local->hw.conf.flags |= IEEE80211_CONF_OFFCHANNEL;