[dpdk-stable] patch 'vfio: fix PCI address comparison' has been queued to LTS release 17.11.4

[Yongseok Koh <yskoh@mellanox.com>]

Hi,

FYI, your patch has been queued to LTS release 17.11.4

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 07/28/18. So please
shout if anyone has objections.

Thanks.

Yongseok

---
>From 8cd25bd5635f6b7e9e36dea7eee8919355531cb6 Mon Sep 17 00:00:00 2001
From: Qi Zhang <qi.z.zhang@intel.com>
Date: Thu, 12 Jul 2018 22:01:42 +0800
Subject: [PATCH] vfio: fix PCI address comparison

[ upstream commit 2a3de3710fbc54499867b44951b5b41cdb2aba35 ]

When use memcmp to compare two PCI address, sizeof(struct rte_pci_addr)
is 4 bytes aligned, and it is 8. While only 7 byte of struct rte_pci_addr
is valid. So compare the 8th byte will cause the unexpected result, which
happens when repeatedly attach/detach a device.

Fixes: 94c0776b1bad ("vfio: support hotplug")

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Gaetan Rivet <gaetan.rivet@6wind.com>
---
 drivers/bus/pci/linux/pci_vfio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/bus/pci/linux/pci_vfio.c b/drivers/bus/pci/linux/pci_vfio.c
index e7d7f5dc1..745db260c 100644
--- a/drivers/bus/pci/linux/pci_vfio.c
+++ b/drivers/bus/pci/linux/pci_vfio.c
@@ -671,7 +671,7 @@ pci_vfio_unmap_resource(struct rte_pci_device *dev)
 	vfio_res_list = RTE_TAILQ_CAST(rte_vfio_tailq.head, mapped_pci_res_list);
 	/* Get vfio_res */
 	TAILQ_FOREACH(vfio_res, vfio_res_list, next) {
-		if (memcmp(&vfio_res->pci_addr, &dev->addr, sizeof(dev->addr)))
+		if (rte_pci_addr_cmp(&vfio_res->pci_addr, &dev->addr))
 			continue;
 		break;
 	}
-- 
2.11.0