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

PCI: Apply Cavium ACS quirk only to CN81xx/CN83xx/CN88xx devices

to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: pci-apply-cavium-acs-quirk-only-to-cn81xx-cn83xx-cn88xx-devices.patch and it can be found in the queue-4.9 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 foo@baz Sun Mar 18 16:55:33 CET 2018

From: Manish Jaggi mjaggi@caviumnetworks.com Date: Thu, 30 Mar 2017 18:47:14 -0500 Subject: PCI: Apply Cavium ACS quirk only to CN81xx/CN83xx/CN88xx devices

From: Manish Jaggi mjaggi@caviumnetworks.com

[ Upstream commit b77d537d00d08fcf0bf641cd3491dd7df0ad1475 ]

Only apply the Cavium ACS quirk to devices with ID in the range 0xa000-0xa0ff. These are the on-chip PCI devices for CN81xx/CN83xx/CN88xx.

Fixes: b404bcfbf035 ("PCI: Add ACS quirk for all Cavium devices") Reported-by: Alex Williamson alex.williamson@redhat.com Signed-off-by: Manish Jaggi mjaggi@cavium.com Acked-by: David Daney david.daney@cavium.com Acked-by: Alex Williamson alex.williamson@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/pci/quirks.c | 3 +++ 1 file changed, 3 insertions(+)

--- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -4104,6 +4104,9 @@ static int pci_quirk_cavium_acs(struct p */ acs_flags &= ~(PCI_ACS_RR | PCI_ACS_CR | PCI_ACS_SV | PCI_ACS_UF);

+ if (!((dev->device >= 0xa000) && (dev->device <= 0xa0ff))) + return -ENOTTY; + return acs_flags ? 0 : 1; }

Patches currently in stable-queue which might be from mjaggi@caviumnetworks.com are

queue-4.9/pci-apply-cavium-acs-quirk-only-to-cn81xx-cn83xx-cn88xx-devices.patch