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authorPatrick McHardy <kaber@trash.net>2010-05-10 20:39:28 +0400
committerPatrick McHardy <kaber@trash.net>2010-05-10 20:39:28 +0400
commit1e4b1057121bc756b91758a434b504d2010f6088 (patch)
treeb016cf2c728289c7e36d9e4e488f30ab0bd0ae6e /drivers/net/wireless/iwlwifi/iwl-calib.c
parent3b254c54ec46eb022cb26ee6ab37fae23f5f7d6a (diff)
parent3ee943728fff536edaf8f59faa58aaa1aa7366e3 (diff)
downloadlinux-1e4b1057121bc756b91758a434b504d2010f6088.tar.xz
Merge branch 'master' of /repos/git/net-next-2.6
Conflicts: net/bridge/br_device.c net/bridge/br_forward.c Signed-off-by: Patrick McHardy <kaber@trash.net>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-calib.c')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-calib.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-calib.c b/drivers/net/wireless/iwlwifi/iwl-calib.c
index 0471c3f8713e..f1fd00b1a65d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-calib.c
+++ b/drivers/net/wireless/iwlwifi/iwl-calib.c
@@ -808,6 +808,18 @@ void iwl_chain_noise_calibration(struct iwl_priv *priv,
}
}
+ /*
+ * The above algorithm sometimes fails when the ucode
+ * reports 0 for all chains. It's not clear why that
+ * happens to start with, but it is then causing trouble
+ * because this can make us enable more chains than the
+ * hardware really has.
+ *
+ * To be safe, simply mask out any chains that we know
+ * are not on the device.
+ */
+ active_chains &= priv->hw_params.valid_rx_ant;
+
num_tx_chains = 0;
for (i = 0; i < NUM_RX_CHAINS; i++) {
/* loops on all the bits of