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Patch "PCI: Mark Atheros AR9485 and QCA9882 to avoid bus reset" has been added to the 4.7-stable tree

PATCH [email protected] 1 participant 1 message Aug 18, 2016

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

PCI: Mark Atheros AR9485 and QCA9882 to avoid bus reset

to the 4.7-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:

     pci-mark-atheros-ar9485-and-qca9882-to-avoid-bus-reset.patch

and it can be found in the queue-4.7 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

Quoted 1 line

From 9ac0108c2bac3f1d0255f64fb89fc27e71131b24 Mon Sep 17 00:00:00 2001

From: Chris Blake <[email protected]>
Date: Mon, 30 May 2016 07:26:37 -0500
Subject: PCI: Mark Atheros AR9485 and QCA9882 to avoid bus reset

From: Chris Blake <[email protected]>

commit 9ac0108c2bac3f1d0255f64fb89fc27e71131b24 upstream.

Similar to the AR93xx series, the AR94xx and the Qualcomm QCA988x also have the same quirk for the Bus Reset.

Fixes c3e59ee4e766 ("PCI: Mark Atheros AR93xx to avoid bus reset")
Signed-off-by Chris Blake <[email protected]>
Signed-off-by Bjorn Helgaas <[email protected]>
Signed-off-by Greg Kroah-Hartman <[email protected]>
---
 drivers/pci/quirks.c |   10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)
drivers/pci/quirks.c +6 -4
@@ -3189,13 +3189,15 @@ static void quirk_no_bus_reset(struct pc
 }
 
 /*
- * Atheros AR93xx chips do not behave after a bus reset.  The device will
- * throw a Link Down error on AER-capable systems and regardless of AER,
- * config space of the device is never accessible again and typically
- * causes the system to hang or reset when access is attempted.
+ * Some Atheros AR9xxx and QCA988x chips do not behave after a bus reset.
+ * The device will throw a Link Down error on AER-capable systems and
+ * regardless of AER, config space of the device is never accessible again
+ * and typically causes the system to hang or reset when access is attempted.
  * http://www.spinics.net/lists/linux-pci/msg34797.html
  */
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0030, quirk_no_bus_reset);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0032, quirk_no_bus_reset);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x003c, quirk_no_bus_reset);
 
 static void quirk_no_pm_reset(struct pci_dev *dev)
 {

Patches currently in stable-queue which might be from [email protected] are

queue-4.7/pci-mark-atheros-ar9485-and-qca9882-to-avoid-bus-reset.patch