[PATCH 4.9 047/101] PCI: Add ACS quirk for Intel 300 series

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>

commit f154a718e6cc0d834f5ac4dc4c3b174e65f3659e upstream.

Intel 300 series chipset still has the same ACS issue as the previous
generations so extend the ACS quirk to cover it as well.

Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>
Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
CC: stable@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/pci/quirks.c |    6 ++++++
 1 file changed, 6 insertions(+)

--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -4236,6 +4236,11 @@ static int pci_quirk_qcom_rp_acs(struct
  *
  * 0x9d10-0x9d1b PCI Express Root port #{1-12}
  *
+ * The 300 series chipset suffers from the same bug so include those root
+ * ports here as well.
+ *
+ * 0xa32c-0xa343 PCI Express Root port #{0-24}
+ *
  * [1] http://www.intel.com/content/www/us/en/chipsets/100-series-chipset-datasheet-vol-2.html
  * [2] http://www.intel.com/content/www/us/en/chipsets/100-series-chipset-datasheet-vol-1.html
  * [3] http://www.intel.com/content/www/us/en/chipsets/100-series-chipset-spec-update.html
@@ -4253,6 +4258,7 @@ static bool pci_quirk_intel_spt_pch_acs_
 	case 0xa110 ... 0xa11f: case 0xa167 ... 0xa16a: /* Sunrise Point */
 	case 0xa290 ... 0xa29f: case 0xa2e7 ... 0xa2ee: /* Union Point */
 	case 0x9d10 ... 0x9d1b: /* 7th & 8th Gen Mobile */
+	case 0xa32c ... 0xa343:				/* 300 series */
 		return true;
 	}