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-rw-r--r--src/shared/net-util.c11
1 files changed, 1 insertions, 10 deletions
diff --git a/src/shared/net-util.c b/src/shared/net-util.c
index 630be18e56..ba21ae437f 100644
--- a/src/shared/net-util.c
+++ b/src/shared/net-util.c
@@ -59,18 +59,9 @@ bool net_match_config(const struct ether_addr *match_mac,
}
unsigned net_netmask_to_prefixlen(const struct in_addr *addr) {
- unsigned len = 0;
- uint32_t mask;
-
assert(addr);
- mask = be32toh(addr->s_addr);
- while (mask) {
- len++;
- mask = mask << 1;
- }
-
- return len;
+ return 32 - u32ctz(be32toh(addr->s_addr));
}
int config_parse_ifname(const char *unit,