[dpdk-dev] [PATCH v1 1/2] vfio: make API return values consistent

[Anatoly Burakov <anatoly.burakov@intel.com>]

Currently, when VFIO support is not compiled, FreeBSD and Linux have
different return values. Fix Linux implementation to follow FreeBSD one.

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
---

Notes:
    Current minimum support Linux kernel is 4.4, and Meson build file sets the
    RTE_EAL_VFIO config option to `true` simply because we are compiling for Linux.
    So, it looks like VFIO support is pretty much assumed on Linux, so i think we
    can safely drop the fallback dummy implementation from Linux altogether?

 lib/eal/linux/eal_vfio.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/eal/linux/eal_vfio.c b/lib/eal/linux/eal_vfio.c
index 25add2fa5d..b9e4d3ad3c 100644
--- a/lib/eal/linux/eal_vfio.c
+++ b/lib/eal/linux/eal_vfio.c
@@ -2111,19 +2111,19 @@ rte_vfio_enable(__rte_unused const char *modname)
 int
 rte_vfio_is_enabled(__rte_unused const char *modname)
 {
-	return -1;
+	return 0;
 }
 
 int
 rte_vfio_noiommu_is_enabled(void)
 {
-	return -1;
+	return 0;
 }
 
 int
 rte_vfio_clear_group(__rte_unused int vfio_group_fd)
 {
-	return -1;
+	return 0;
 }
 
 int
-- 
2.25.1