enic: fix build with gcc 4.7.2

Compile warnings/errors was found on gcc 4.7.2 as follows. Variables
was reported of being used but uninitialized. Assigning an initial
value to it is needed.

lib/librte_pmd_enic/vnic/vnic_dev.c: In function vnic_dev_get_mac_addr:
lib/librte_pmd_enic/vnic/vnic_dev.c:393:16: error: a1 may be used uninitialized
	in this function [-Werror=uninitialized]
lib/librte_pmd_enic/vnic/vnic_dev.c:629:10: note: a1 was declared here
lib/librte_pmd_enic/vnic/vnic_dev.c: In function vnic_dev_set_mac_addr:
lib/librte_pmd_enic/vnic/vnic_dev.c:393:16: error: a1 may be used uninitialized
	in this function [-Werror=uninitialized]
lib/librte_pmd_enic/vnic/vnic_dev.c:980:10: note: a1 was declared here

Signed-off-by: Helin Zhang <helin.zhang@intel.com>
Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>

diff --git a/lib/librte_pmd_enic/vnic/vnic_dev.c b/lib/librte_pmd_enic/vnic/vnic_dev.c
index b1cd63f..6407994 100644 (file)
--- a/lib/librte_pmd_enic/vnic/vnic_dev.c
+++ b/lib/librte_pmd_enic/vnic/vnic_dev.c
@@ -626,7 +626,7 @@ int vnic_dev_soft_reset_done(struct vnic_dev *vdev, int *done)
 
 int vnic_dev_get_mac_addr(struct vnic_dev *vdev, u8 *mac_addr)
 {
-       u64 a0, a1;
+       u64 a0, a1 = 0;
        int wait = 1000;
        int err, i;
 
@@ -977,7 +977,7 @@ struct rte_pci_device *vnic_dev_get_pdev(struct vnic_dev *vdev)
 
 int vnic_dev_set_mac_addr(struct vnic_dev *vdev, u8 *mac_addr)
 {
-       u64 a0, a1;
+       u64 a0, a1 = 0;
        int wait = 1000;
        int i;