Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759349Ab0GAVSc (ORCPT ); Thu, 1 Jul 2010 17:18:32 -0400 Received: from kroah.org ([198.145.64.141]:33091 "EHLO coco.kroah.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759090Ab0GAVPC (ORCPT ); Thu, 1 Jul 2010 17:15:02 -0400 X-Mailbox-Line: From gregkh@clark.site Thu Jul 1 10:43:00 2010 Message-Id: <20100701174300.327656882@clark.site> User-Agent: quilt/0.48-10.1 Date: Thu, 01 Jul 2010 10:44:13 -0700 From: Greg KH To: linux-kernel@vger.kernel.org, stable@kernel.org Cc: stable-review@kernel.org, torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Reinette Chatre , "John W. Linville" Subject: [163/200] iwlwifi: recalculate average tpt if not current In-Reply-To: <20100701175201.GA2149@kroah.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2024 Lines: 56 2.6.34-stable review patch. If anyone has any objections, please let me know. ------------------ From: Reinette Chatre commit 3d79b2a9eeaa066b35c49fbb17e3156a3c482c3e upstream. We currently have this check as a BUG_ON, which is being hit by people. Previously it was an error with a recalculation if not current, return that code. The BUG_ON was introduced by: commit 3110bef78cb4282c58245bc8fd6d95d9ccb19749 Author: Guy Cohen Date: Tue Sep 9 10:54:54 2008 +0800 iwlwifi: Added support for 3 antennas ... the portion adding the BUG_ON is reverted since we are encountering the error and BUG_ON was created with assumption that error is not encountered. Signed-off-by: Reinette Chatre Signed-off-by: John W. Linville Signed-off-by: Greg Kroah-Hartman --- drivers/net/wireless/iwlwifi/iwl-agn-rs.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) --- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c @@ -2077,10 +2077,12 @@ static void rs_rate_scale_perform(struct } /* Else we have enough samples; calculate estimate of * actual average throughput */ - - /* Sanity-check TPT calculations */ - BUG_ON(window->average_tpt != ((window->success_ratio * - tbl->expected_tpt[index] + 64) / 128)); + if (window->average_tpt != ((window->success_ratio * + tbl->expected_tpt[index] + 64) / 128)) { + IWL_ERR(priv, "expected_tpt should have been calculated by now\n"); + window->average_tpt = ((window->success_ratio * + tbl->expected_tpt[index] + 64) / 128); + } /* If we are searching for better modulation mode, check success. */ if (lq_sta->search_better_tbl && -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/