4.9-stable patches

[thirdparty/kernel/stable-queue.git] / releases / 2.6.25.1 / ssb-fix-all-ones-boardflags.patch

From stable-bounces@linux.kernel.org Thu Apr 24 17:06:25 2008
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Thu, 24 Apr 2008 20:00:45 +0200
Subject: ssb: Fix all-ones boardflags
To: stable@kernel.org
Cc: linux-wireless@vger.kernel.org, bcm43xx-dev@lists.berlios.de
Message-ID: <200804242000.45740.mb@bu3sch.de>
Content-Disposition: inline


From: Larry Finger <Larry.Finger@lwfinger.net>

commit 4503183aa32e6886400d82282292934fa64a81b0 upstream

In the SSB SPROM a field set to all ones means the value
is not defined in the SPROM.
In case of the boardflags, we need to set them to zero
to avoid confusing drivers. Drivers will only check the
flags by ANDing.


Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Gabor Stefanik <netrolller.3d@gmail.com>
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/ssb/pci.c |    5 +++++
 1 file changed, 5 insertions(+)

--- a/drivers/ssb/pci.c
+++ b/drivers/ssb/pci.c
@@ -482,6 +482,11 @@ static int sprom_extract(struct ssb_bus 
 			goto unsupported;
 	}
 
+	if (out->boardflags_lo == 0xFFFF)
+		out->boardflags_lo = 0;  /* per specs */
+	if (out->boardflags_hi == 0xFFFF)
+		out->boardflags_hi = 0;  /* per specs */
+
 	return 0;
 unsupported:
 	ssb_printk(KERN_WARNING PFX "Unsupported SPROM revision %d "