From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1763205Ab3DKVAJ (ORCPT ); Thu, 11 Apr 2013 17:00:09 -0400 Received: from hrndva-omtalb.mail.rr.com ([71.74.56.122]:11684 "EHLO hrndva-omtalb.mail.rr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935800Ab3DKUtW (ORCPT ); Thu, 11 Apr 2013 16:49:22 -0400 X-Authority-Analysis: v=2.0 cv=F+XVh9dN c=1 sm=0 a=rXTBtCOcEpjy1lPqhTCpEQ==:17 a=mNMOxpOpBa8A:10 a=Ciwy3NGCPMMA:10 a=ZDYxgX4iq60A:10 a=5SG0PmZfjMsA:10 a=bbbx4UPp9XUA:10 a=meVymXHHAAAA:8 a=v8_7Gzy7jK4A:10 a=pGLkceISAAAA:8 a=VwQbUJbxAAAA:8 a=vmLDa1wCAAAA:8 a=ci0R9jrIFp8a7j49ubkA:9 a=MSl-tDqOz04A:10 a=gv_BBZfBKR8A:10 a=jeBq3FmKZ4MA:10 a=rXTBtCOcEpjy1lPqhTCpEQ==:117 X-Cloudmark-Score: 0 X-Authenticated-User: X-Originating-IP: 74.67.115.198 Message-Id: <20130411202600.596526625@goodmis.org> User-Agent: quilt/0.60-1 Date: Thu, 11 Apr 2013 16:26:31 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= , "John W. Linville" Subject: [ 088/171 ] b43: N-PHY: increase initial value of "mind" in RSSI calibration References: <20130411202503.783159048@goodmis.org> Content-Disposition: inline; filename=0088-b43-N-PHY-increase-initial-value-of-mind-in-RSSI-cal.patch Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.6.11.2 stable review patch. If anyone has any objections, please let me know. ------------------ From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= [ Upstream commit e67dd874e60529dbd2e8232babb1e23479ba2ffa ] We're using "mind" variable to find the VCM that got the best polling results. For each VCM we calculte "currd" which is compared to the "mind". For PHY rev3+ "currd" gets values around 14k-40k. Looking for a value smaller than 40 makes no sense, so increase the initial value. This fixes a regression introduced in 3.4 by commit: e0c9a0219a8f542e3946fe972a68aacf8c3f906c (my BCM4322 performance dropped from 18,4Mb/s to 9,26Mb/s) Signed-off-by: Rafał Miłecki Cc: stable@vger.kernel.org Signed-off-by: John W. Linville Signed-off-by: Steven Rostedt --- drivers/net/wireless/b43/phy_n.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c index b92bb9c..e167a88 100644 --- a/drivers/net/wireless/b43/phy_n.c +++ b/drivers/net/wireless/b43/phy_n.c @@ -1371,7 +1371,7 @@ static void b43_nphy_rev3_rssi_cal(struct b43_wldev *dev) } for (i = 0; i < 4; i += 2) { s32 curr; - s32 mind = 40; + s32 mind = 0x100000; s32 minpoll = 249; u8 minvcm = 0; if (2 * core != i) @@ -1555,7 +1555,7 @@ static void b43_nphy_rev2_rssi_cal(struct b43_wldev *dev, u8 type) } for (i = 0; i < 4; i++) { - s32 mind = 40; + s32 mind = 0x100000; u8 minvcm = 0; s32 minpoll = 249; s32 curr; -- 1.7.10.4