[dpdk-dev] [PATCH 05/14] eal/common: introduce function to_pci_device

[Jan Viktorin]

Signed-off-by: Jan Viktorin <viktorin at rehivetech.com>
---
 lib/librte_eal/common/include/rte_pci.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/lib/librte_eal/common/include/rte_pci.h b/lib/librte_eal/common/include/rte_pci.h
index 1321654..204ee82 100644
--- a/lib/librte_eal/common/include/rte_pci.h
+++ b/lib/librte_eal/common/include/rte_pci.h
@@ -171,6 +171,17 @@ struct rte_pci_device {
 	enum rte_kernel_driver kdrv;            /**< Kernel driver passthrough */
 };
 
+static inline struct rte_pci_device *
+to_pci_device(void *p)
+{
+	unsigned int *magic = (unsigned int *) p;
+	if (*magic == RTE_PCI_DEVICE_MAGIC)
+		return (struct rte_pci_device *) p;
+
+	rte_panic("%s: bad cast (%p: %08x)\n", __func__, p, *magic);
+	return NULL;
+}
+
 /** Any PCI device identifier (vendor, device, ...) */
 #define PCI_ANY_ID (0xffff)
 
-- 
2.6.3