linux-kernel - [074/117] r8169: more broken register writes workaround

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Message-Id: <20100510223324.065549901@kvm.kroah.org>
Date:	Mon, 10 May 2010 15:32:45 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Francois Romieu <romieu@...zoreil.com>,
	"David S. Miller" <davem@...emloft.net>
Subject: [074/117] r8169: more broken register writes workaround

2.6.33-stable review patch.  If anyone has any objections, please let us know.

------------------

From: =?UTF-8?q?fran=C3=A7ois=20romieu?= <romieu@...zoreil.com>

commit 908ba2bfd22253f26fa910cd855e4ccffb1467d0 upstream.

78f1cd02457252e1ffbc6caa44a17424a45286b8 ("fix broken register writes")
does not work for Al Viro's r8169 (XID 18000000).

Signed-off-by: Francois Romieu <romieu@...zoreil.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/net/r8169.c |    5 +++++
 1 file changed, 5 insertions(+)

--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -2832,8 +2832,13 @@ static void rtl_rar_set(struct rtl8169_p
 	spin_lock_irq(&tp->lock);
 
 	RTL_W8(Cfg9346, Cfg9346_Unlock);
+
 	RTL_W32(MAC4, high);
+	RTL_R32(MAC4);
+
 	RTL_W32(MAC0, low);
+	RTL_R32(MAC0);
+
 	RTL_W8(Cfg9346, Cfg9346_Lock);
 
 	spin_unlock_irq(&tp->lock);


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