Patch "PCI: Fix TI816X class code quirk" has been added to the 3.10-stable tree
Subsystems (2)
This is a note to let you know that I've just added the patch titled
PCI: Fix TI816X class code quirk
to the 3.10-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-3.10 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
d1541dc977d376406f4584d8eb055488655c98ecMon Sep 17 00:00:00 2001
From: Bjorn Helgaas <[email protected]>
Date: Fri, 19 Jun 2015 15:58:24 -0500
Subject: PCI: Fix TI816X class code quirk
From: Bjorn Helgaas <[email protected]>
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.
--- drivers/pci/quirks.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)
drivers/pci/quirks.c +6 -3
@@ -2796,12 +2796,15 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INstatic 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 [email protected] are
queue-3.10/pci-fix-ti816x-class-code-quirk.patch