b43: N-PHY: don't calculate values for TSSI if we can't transmit

This process requires sending some sample tone, so make sure we're
allowed to transmit first.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c
index 44bb58b748dd..d269fbb27b9e 100644
--- a/drivers/net/wireless/b43/phy_n.c
+++ b/drivers/net/wireless/b43/phy_n.c
@@ -3957,7 +3957,8 @@ static void b43_nphy_tx_power_ctl_idle_tssi(struct b43_wldev *dev)
         u32 tmp;
         s32 rssi[4] = { };
 
-        /* TODO: check if we can transmit */
+        if (phy->chandef->chan->flags & IEEE80211_CHAN_NO_IR)
+                return;
 
         if (b43_nphy_ipa(dev))
                 b43_nphy_ipa_internal_tssi_setup(dev);