From: Rafał Miłecki Date: Tue, 19 Mar 2013 06:52:48 +0000 (+0100) Subject: b43: N-PHY: increase initial value of "mind" in RSSI calibration X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=e67dd874e60529dbd2e8232babb1e23479ba2ffa;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git b43: N-PHY: increase initial value of "mind" in RSSI calibration 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 --- diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c index 3c35382ee6c2..e014a7a8154d 100644 --- a/drivers/net/wireless/b43/phy_n.c +++ b/drivers/net/wireless/b43/phy_n.c @@ -1615,7 +1615,7 @@ 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) @@ -1799,7 +1799,7 @@ 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;