diff --git a/lib/env_dpdk/memory.c b/lib/env_dpdk/memory.c
index d2d520c28..f0319dc18 100644
--- a/lib/env_dpdk/memory.c
+++ b/lib/env_dpdk/memory.c
@@ -1345,49 +1345,3 @@ spdk_vtophys(void *buf, uint64_t *size)
 		return paddr_2mb + (vaddr & MASK_2MB);
 	}
 }
-
-static int
-spdk_bus_scan(void)
-{
-	return 0;
-}
-
-static int
-spdk_bus_probe(void)
-{
-	return 0;
-}
-
-static struct rte_device *
-spdk_bus_find_device(const struct rte_device *start,
-		     rte_dev_cmp_t cmp, const void *data)
-{
-	return NULL;
-}
-
-#if RTE_VERSION >= RTE_VERSION_NUM(17, 11, 0, 3)
-static enum rte_iova_mode
-spdk_bus_get_iommu_class(void) {
-	/* Since we register our PCI drivers after EAL init, we have no chance
-	 * of switching into RTE_IOVA_VA (virtual addresses as iova) iommu
-	 * class. DPDK uses RTE_IOVA_PA by default because for some platforms
-	 * it's the only supported mode, but then SPDK does not support those
-	 * platforms and doesn't mind defaulting to RTE_IOVA_VA. The rte_pci bus
-	 * will force RTE_IOVA_PA if RTE_IOVA_VA simply can not be used
-	 * (i.e. at least one device on the system is bound to uio_pci_generic),
-	 * so we simply return RTE_IOVA_VA here.
-	 */
-	return RTE_IOVA_VA;
-}
-#endif
-
-struct rte_bus spdk_bus = {
-	.scan = spdk_bus_scan,
-	.probe = spdk_bus_probe,
-	.find_device = spdk_bus_find_device,
-#if RTE_VERSION >= RTE_VERSION_NUM(17, 11, 0, 3)
-	.get_iommu_class = spdk_bus_get_iommu_class,
-#endif
-};
-
-RTE_REGISTER_BUS(spdk, spdk_bus);