ifenslave: Fix unused variable warnings.

Documentation/networking/ifenslave.c: In function ‘if_getconfig’:
Documentation/networking/ifenslave.c:508:14: warning: variable ‘mtu’ set but not used [-Wunused-but-set-variable]
Documentation/networking/ifenslave.c:508:6: warning: variable ‘metric’ set but not used [-Wunused-but-set-variable]

The purpose of this function is to simply print out the values
it probes, so...

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/Documentation/networking/ifenslave.c b/Documentation/networking/ifenslave.c
index 65968fbf1e49..ac5debb2f16c 100644
--- a/Documentation/networking/ifenslave.c
+++ b/Documentation/networking/ifenslave.c
@@ -539,12 +539,14 @@ static int if_getconfig(char *ifname)
                 metric = 0;
         } else
                 metric = ifr.ifr_metric;
+        printf("The result of SIOCGIFMETRIC is %d\n", metric);
 
         strcpy(ifr.ifr_name, ifname);
         if (ioctl(skfd, SIOCGIFMTU, &ifr) < 0)
                 mtu = 0;
         else
                 mtu = ifr.ifr_mtu;
+        printf("The result of SIOCGIFMTU is %d\n", mtu);
 
         strcpy(ifr.ifr_name, ifname);
         if (ioctl(skfd, SIOCGIFDSTADDR, &ifr) < 0) {