Patch "b43: fix support for 14e4:4321 PCI dev with BCM4321 chipset" has been added to the 4.1-stable tree

Patch "b43: fix support for 14e4:4321 PCI dev with BCM4321 chipset" has been added to the 4.1-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    b43: fix support for 14e4:4321 PCI dev with BCM4321 chipset

to the 4.1-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     b43-fix-support-for-14e4-4321-pci-dev-with-bcm4321-chipset.patch
and it can be found in the queue-4.1 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 90f91b129810c3f169e443252be30ed7c0130326 Mon Sep 17 00:00:00 2001
From: Rafał Miłecki <zajec5@gmail.com>
Date: Sat, 6 Jun 2015 22:45:59 +0200
Subject: b43: fix support for 14e4:4321 PCI dev with BCM4321 chipset
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

From: Rafał Miłecki <zajec5@gmail.com>

commit 90f91b129810c3f169e443252be30ed7c0130326 upstream.

It seems Broadcom released two devices with conflicting device id. There
are for sure 14e4:4321 PCI devices with BCM4321 (N-PHY) chipset, they
can be found in routers, e.g. Netgear WNR834Bv2. However, according to
Broadcom public sources 0x4321 is also used for 5 GHz BCM4306 (G-PHY).
It's unsure if they meant PCI device id, or "virtual" id (from SPROM).
To distinguish these devices lets check PHY type (G vs. N).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Cc: <stable@vger.kernel.org> # 3.16+
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/net/wireless/b43/main.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -5365,6 +5365,10 @@ static void b43_supported_bands(struct b
 		*have_5ghz_phy = true;
 		return;
 	case 0x4321: /* BCM4306 */
+		/* There are 14e4:4321 PCI devs with 2.4 GHz BCM4321 (N-PHY) */
+		if (dev->phy.type != B43_PHYTYPE_G)
+			break;
+		/* fall through */
 	case 0x4313: /* BCM4311 */
 	case 0x431a: /* BCM4318 */
 	case 0x432a: /* BCM4321 */


Patches currently in stable-queue which might be from zajec5@gmail.com are

queue-4.1/b43-fix-support-for-14e4-4321-pci-dev-with-bcm4321-chipset.patch