Re: [dpdk-dev] [PATCH] eal: update all buses default scan mode

diff --git a/lib/librte_eal/common/eal_common_bus.c b/lib/librte_eal/common/eal_common_bus.c
index baa5b532af..ebbb3995f6 100644
--- a/lib/librte_eal/common/eal_common_bus.c
+++ b/lib/librte_eal/common/eal_common_bus.c

@@ -277,3 +277,19 @@ rte_bus_sigbus_handler(const void *failure_addr)
 
 	return ret;
 }
+
+static bool mode_set;

+
+void
+rte_bus_scan_mode_update(enum rte_bus_scan_mode mode)
+{
+	struct rte_bus *bus;
+
+	if (mode_set)
+		return;
+	TAILQ_FOREACH(bus, &rte_bus_list, next) {
+		if (bus->conf.scan_mode == RTE_BUS_SCAN_UNDEFINED)
+			bus->conf.scan_mode = mode;
+	}
+	mode_set = true;
+}

 /**
  * Create the unix channel for primary/secondary communication.
  *

diff --git a/lib/librte_eal/rte_eal_exports.def b/lib/librte_eal/rte_eal_exports.def
index 474cf123fa..2757f31461 100644
--- a/lib/librte_eal/rte_eal_exports.def
+++ b/lib/librte_eal/rte_eal_exports.def

@@ -11,6 +11,7 @@ EXPORTS
 	rte_bus_probe
 	rte_bus_register
 	rte_bus_scan
+	rte_bus_scan_mode_update
 	rte_bus_unregister
 	rte_calloc
 	rte_calloc_socket

diff --git a/lib/librte_eal/version.map b/lib/librte_eal/version.map
index fce90a112f..171bca478d 100644
--- a/lib/librte_eal/version.map
+++ b/lib/librte_eal/version.map

@@ -417,6 +417,8 @@ EXPERIMENTAL {
 INTERNAL {
 	global:
 
+	rte_bus_scan_mode_update;
+
 	rte_mem_lock;
 	rte_mem_map;
 	rte_mem_page_size;