Patch "PCI: Apply Cavium ACS quirk only to CN81xx/CN83xx/CN88xx devices" has been added to the 4.9-stable tree

Patch "PCI: Apply Cavium ACS quirk only to CN81xx/CN83xx/CN88xx devices" has been added to the 4.9-stable tree

[gregkh]

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;a=summary

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