This is a note to let you know that I've just added the patch titled
PCI: Fix TI816X class code quirk
to the 3.14-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-fix-ti816x-class-code-quirk.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From d1541dc977d376406f4584d8eb055488655c98ec Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Date: Fri, 19 Jun 2015 15:58:24 -0500
Subject: PCI: Fix TI816X class code quirk
From: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
commit d1541dc977d376406f4584d8eb055488655c98ec upstream.
In fixup_ti816x_class(), we assigned "class = PCI_CLASS_MULTIMEDIA_VIDEO".
But PCI_CLASS_MULTIMEDIA_VIDEO is only the two-byte base class/sub-class
and needs to be shifted to make space for the low-order interface byte.
Shift PCI_CLASS_MULTIMEDIA_VIDEO to set the correct class code.
Fixes: 63c4408074cb ("PCI: Add quirk for setting valid class for TI816X Endpoint")
Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
CC: Hemant Pedanekar <hemantp@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/pci/quirks.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -2790,12 +2790,15 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_IN
static void fixup_ti816x_class(struct pci_dev *dev)
{
+ u32 class = dev->class;
+
/* TI 816x devices do not have class code set when in PCIe boot mode */
- dev_info(&dev->dev, "Setting PCI class for 816x PCIe device\n");
- dev->class = PCI_CLASS_MULTIMEDIA_VIDEO;
+ dev->class = PCI_CLASS_MULTIMEDIA_VIDEO << 8;
+ dev_info(&dev->dev, "PCI class overridden (%#08x -> %#08x)\n",
+ class, dev->class);
}
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_TI, 0xb800,
- PCI_CLASS_NOT_DEFINED, 0, fixup_ti816x_class);
+ PCI_CLASS_NOT_DEFINED, 0, fixup_ti816x_class);
/* Some PCIe devices do not work reliably with the claimed maximum
* payload size supported.
Patches currently in stable-queue which might be from bhelgaas@xxxxxxxxxx are
queue-3.14/pci-fix-ti816x-class-code-quirk.patch
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