1 files changed, 1 insertions, 7 deletions

diff --git a/networking/ifupdown.c b/networking/ifupdown.c
index 6c4ae27f2..9c3640be7 100644
--- a/networking/ifupdown.c
+++ b/networking/ifupdown.c
@@ -306,7 +306,6 @@ static int count_netmask_bits(const char *dotted_quad)
 //      d = ~d; /* 11110000 -> 00001111 */
 
         /* Shorter version */
-        int result;
         struct in_addr ip;
         unsigned d;
 
@@ -316,12 +315,7 @@ static int count_netmask_bits(const char *dotted_quad)
         d = ~d; /* 11110000 -> 00001111 */
         if (d & (d+1)) /* check that it is in 00001111 form */
                 return -1; /* no it is not */
-        result = 32;
-        while (d) {
-                d >>= 1;
-                result--;
-        }
-        return result;
+        return bb_popcnt_32(~d);
 }
 # endif