netconf: replace macro with a function

The number of casts in macro was excessive.

diff --git a/ip/ipnetconf.c b/ip/ipnetconf.c
index 58657a91553946aeea25b072092212ded6788bd8..158cfa6a429946bef9e4750b9fca75f899648c06 100644 (file)
--- a/ip/ipnetconf.c
+++ b/ip/ipnetconf.c
@@ -24,8 +24,7 @@
 #include "utils.h"
 #include "ip_common.h"
 
-static struct
-{
+static struct {
        int family;
        int ifindex;
 } filter;
@@ -38,7 +37,11 @@ static void usage(void)
        exit(-1);
 }
 
-#define NETCONF_RTA(r) ((struct rtattr *)(((char *)(r)) + NLMSG_ALIGN(sizeof(struct netconfmsg))))
+static struct rtattr *netconf_rta(struct netconfmsg *ncm)
+{
+       return (struct rtattr *)((char *)ncm
+                                + NLMSG_ALIGN(sizeof(struct netconfmsg)));
+}
 
 int print_netconf(const struct sockaddr_nl *who, struct rtnl_ctrl_data *ctrl,
                  struct nlmsghdr *n, void *arg)
@@ -65,7 +68,7 @@ int print_netconf(const struct sockaddr_nl *who, struct rtnl_ctrl_data *ctrl,
        if (filter.family && filter.family != ncm->ncm_family)
                return 0;
 
-       parse_rtattr(tb, NETCONFA_MAX, NETCONF_RTA(ncm),
+       parse_rtattr(tb, NETCONFA_MAX, netconf_rta(ncm),
                     NLMSG_PAYLOAD(n, sizeof(*ncm)));
 
        switch (ncm->ncm_family) {