From 185a88359742a7002b282b3b91e63cf723e4fd42 Mon Sep 17 00:00:00 2001
From: Ilya Maximets <i.maximets@samsung.com>
Date: Thu, 6 Jul 2017 16:30:43 +0300
Subject: [PATCH] vhost: print reason of NUMA node query failure

syscall always returns '-1' on failure and there is no point
in printing that value. 'errno' is much more informative.

Fixes: 586e39001317 ("vhost: export numa node")

Signed-off-by: Ilya Maximets <i.maximets@samsung.com>
Acked-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
---
 lib/librte_vhost/vhost.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/librte_vhost/vhost.c b/lib/librte_vhost/vhost.c
index 653152fc7d..0b6aa1cc4f 100644
--- a/lib/librte_vhost/vhost.c
+++ b/lib/librte_vhost/vhost.c
@@ -40,6 +40,7 @@
 #include <numaif.h>
 #endif
 
+#include <rte_errno.h>
 #include <rte_ethdev.h>
 #include <rte_log.h>
 #include <rte_string_fns.h>
@@ -295,7 +296,8 @@ rte_vhost_get_numa_node(int vid)
 			    MPOL_F_NODE | MPOL_F_ADDR);
 	if (ret < 0) {
 		RTE_LOG(ERR, VHOST_CONFIG,
-			"(%d) failed to query numa node: %d\n", vid, ret);
+			"(%d) failed to query numa node: %s\n",
+			vid, rte_strerror(errno));
 		return -1;
 	}
 
-- 
2.20.1