From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from charlotte.tuxdriver.com ([70.61.120.58]:56138 "EHLO smtp.tuxdriver.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756317Ab0DOUPL (ORCPT ); Thu, 15 Apr 2010 16:15:11 -0400 Date: Thu, 15 Apr 2010 16:03:31 -0400 From: "John W. Linville" To: davem@davemloft.net Cc: linux-wireless@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: pull request: wireless-2.6 2010-04-15 Message-ID: <20100415200331.GD3020@tuxdriver.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-wireless-owner@vger.kernel.org List-ID: Dave, Another fix intended for 2.6.34...without it some firmware wierdness can induce the driver into hanging the box... :-( Please let me know if there are problems! Thanks, John --- The following changes since commit 4eaa0e3c869acd5dbc7c2e3818a9ae9cbf221d27: Eric Dumazet (1): fib: suppress lockdep-RCU false positive in FIB trie. are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6.git master Johannes Berg (1): iwlwifi: work around bogus active chains detection drivers/net/wireless/iwlwifi/iwl-calib.c | 12 ++++++++++++ 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 845831a..64de42b 100644 --- a/drivers/net/wireless/iwlwifi/iwl-calib.c +++ b/drivers/net/wireless/iwlwifi/iwl-calib.c @@ -807,6 +807,18 @@ 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 -- John W. Linville Someday the world will need a hero, and you linville@tuxdriver.com might be all we have. Be ready.