linux-kernel - Re: 2.6.25-rc2 regression in rt61pci wireless driver

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Date:	Tue, 19 Feb 2008 10:26:57 +0100
From:	Ivo van Doorn <ivdoorn@...il.com>
To:	chris2553@...glemail.com
Cc:	linux-kernel@...r.kernel.org, linux-wireless@...r.kernel.org
Subject: Re: 2.6.25-rc2 regression in rt61pci wireless driver

Hi,

> > I have a series of tests I would like to request from you,
> > you mentioned you already enabled debugfs, and that is just what we need. ;)
> > Please use attached script to create dumps of the hardware register contents.
> > 
> > There are specific moments that should be dumped:
> > - kernel 2.6.24 (last known working version for you).
> > - kernel 2.6.25-rc2 (after ifup, before TX dies)
> > - kernel 2.6.25-rc2 (after ifup, after TX dies)
> >  
> 
> These diagnostics are attached, with obvious filenames.

Thanks. I think I found something, please test below patch:

---
diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
index 015738a..8df1991 100644
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -249,10 +249,10 @@ static void rt2x00lib_evaluate_antenna(struct rt2x00_dev *rt2x00dev)
 	rt2x00dev->link.ant.flags &= ~ANTENNA_TX_DIVERSITY;
 
 	if (rt2x00dev->hw->conf.antenna_sel_rx == 0 &&
-	    rt2x00dev->default_ant.rx != ANTENNA_SW_DIVERSITY)
+	    rt2x00dev->default_ant.rx == ANTENNA_SW_DIVERSITY)
 		rt2x00dev->link.ant.flags |= ANTENNA_RX_DIVERSITY;
 	if (rt2x00dev->hw->conf.antenna_sel_tx == 0 &&
-	    rt2x00dev->default_ant.tx != ANTENNA_SW_DIVERSITY)
+	    rt2x00dev->default_ant.tx == ANTENNA_SW_DIVERSITY)
 		rt2x00dev->link.ant.flags |= ANTENNA_TX_DIVERSITY;
 
 	if (!(rt2x00dev->link.ant.flags & ANTENNA_RX_DIVERSITY) &&



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