[dpdk-dev] [PATCH v3] igb_uio: bind error if pcie bridge

[Ajit Khaparde <ajit.khaparde@broadcom.com>]

From: Darren Edamura <darren.edamura@broadcom.com>

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>
----
v1->v2: add a log message if the condition is true.
v2->v3: rebase against latest dpdk-next-net tree.
---
 kernel/linux/igb_uio/igb_uio.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/kernel/linux/igb_uio/igb_uio.c b/kernel/linux/igb_uio/igb_uio.c
index 4cae4dd27..cbc5ab63a 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;
-- 
2.14.3 (Apple Git-98)