From: Darren Edamura <darren.edamura@broadcom.com>
Date: Thu, 29 Mar 2018 16:37:35 +0000 (-0700)
Subject: igb_uio: bind error if PCIe bridge
X-Git-Url: http://git.droids-corp.org/?p=dpdk.git;a=commitdiff_plain;h=6f0841b7701bd7f962d2fa982f6a827760f65907;ds=sidebyside

igb_uio: bind error if PCIe bridge

Probe function should exit immediately if pcie bridge detected

Signed-off-by: Darren Edamura <darren.edamura@broadcom.com>
Signed-off-by: Rahul Gupta <rahul.gupta@broadcom.com>
Signed-off-by: Scott Branden <scott.branden@broadcom.com>
Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
---

diff --git a/kernel/linux/igb_uio/igb_uio.c b/kernel/linux/igb_uio/igb_uio.c
index 4cae4dd271..cbc5ab63ad 100644
--- a/kernel/linux/igb_uio/igb_uio.c
+++ b/kernel/linux/igb_uio/igb_uio.c
@@ -473,6 +473,11 @@ igbuio_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	void *map_addr;
 	int err;
 
+	if (pci_is_bridge(dev)) {
+		dev_warn(&dev->dev, "Ignoring PCI bridge device\n");
+		return -ENODEV;
+	}
+
 	udev = kzalloc(sizeof(struct rte_uio_pci_dev), GFP_KERNEL);
 	if (!udev)
 		return -ENOMEM;