If a device isn't bound by any uio driver (vfio-pci, igb_uio, uio_pci_generic)
and is expected to owned by a kernel space driver, here it's still inserted to
pci_device_list.
This may cause application based on dpdk fetch the device by accident and then
the device is hanlded by dpdk.
For safe, skip it from pci_device_list as if it's unbound, dpdk won't want to
use it.
---
lib/librte_eal/linuxapp/eal/eal_pci.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/lib/librte_eal/linuxapp/eal/eal_pci.c
b/lib/librte_eal/linuxapp/eal/eal_pci.c
index f63febc..432d2e8 100644
--- a/lib/librte_eal/linuxapp/eal/eal_pci.c
+++ b/lib/librte_eal/linuxapp/eal/eal_pci.c
@@ -392,8 +392,12 @@ pci_scan_one(const char *dirname, uint16_t domain, uint8_t
bus,
* fetch it from pci_device_list by accident and then dpdk handles it.
Kernel
* space driver maybe wants to own it.
*/
- if (dev->kdrv == RTE_KDRV_NONE)
+ if (dev->kdrv == RTE_KDRV_NONE) {
+ RTE_LOG(WARNING, EAL, "Skip ubound device\n");
+ free(dev);
return 0;
+ }
+
/* device is valid, add in list (sorted) */
if (TAILQ_EMPTY(&pci_device_list)) {
TAILQ_INSERT_TAIL(&pci_device_list, dev, next);
--
2.1.4
