optimize 16- and 32-bit moves

function                                             old     new   delta
udhcpd_main                                         1239    1257     +18
udhcp_add_simple_option                               93      92      -1
buffer_read_le_u32                                    19      18      -1
unpack_gz_stream_with_info                           526     520      -6
dnsd_main                                           1470    1463      -7
udhcp_run_script                                    1208    1186     -22
send_ACK                                             255     229     -26
arping_main                                         1661    1623     -38
send_offer                                           470     428     -42
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/8 up/down: 18/-143)          Total: -125 bytes

2 files changed, 21 insertions, 21 deletions

diff --git a/networking/libiproute/libnetlink.c b/networking/libiproute/libnetlink.c
index 01454fbf5..6d51d8deb 100644
--- a/networking/libiproute/libnetlink.c
+++ b/networking/libiproute/libnetlink.c
@@ -341,7 +341,7 @@ int FAST_FUNC addattr32(struct nlmsghdr *n, int maxlen, int type, uint32_t data)
         rta = (struct rtattr*)(((char*)n) + NLMSG_ALIGN(n->nlmsg_len));
         rta->rta_type = type;
         rta->rta_len = len;
-        memcpy(RTA_DATA(rta), &data, 4);
+        move_to_unaligned32(RTA_DATA(rta), data);
         n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + len;
         return 0;
 }
@@ -372,7 +372,7 @@ int FAST_FUNC rta_addattr32(struct rtattr *rta, int maxlen, int type, uint32_t d
         subrta = (struct rtattr*)(((char*)rta) + RTA_ALIGN(rta->rta_len));
         subrta->rta_type = type;
         subrta->rta_len = len;
-        memcpy(RTA_DATA(subrta), &data, 4);
+        move_to_unaligned32(RTA_DATA(subrta), data);
         rta->rta_len = NLMSG_ALIGN(rta->rta_len) + len;
         return 0;
 }
diff --git a/networking/libiproute/ll_addr.c b/networking/libiproute/ll_addr.c
index e732efdb2..f50e37193 100644
--- a/networking/libiproute/ll_addr.c
+++ b/networking/libiproute/ll_addr.c
@@ -43,6 +43,8 @@ const char *ll_addr_n2a(unsigned char *addr, int alen, int type, char *buf, int
 
 int ll_addr_a2n(unsigned char *lladdr, int len, char *arg)
 {
+        int i;
+
         if (strchr(arg, '.')) {
                 inet_prefix pfx;
                 if (get_addr_1(&pfx, arg, AF_INET)) {
@@ -54,26 +56,24 @@ int ll_addr_a2n(unsigned char *lladdr, int len, char *arg)
                 }
                 memcpy(lladdr, pfx.data, 4);
                 return 4;
-        } else {
-                int i;
+        }
 
-                for (i=0; i<len; i++) {
-                        int temp;
-                        char *cp = strchr(arg, ':');
-                        if (cp) {
-                                *cp = 0;
-                                cp++;
-                        }
-                        if (sscanf(arg, "%x", &temp) != 1 || (temp < 0 || temp > 255)) {
-                                bb_error_msg("\"%s\" is invalid lladdr", arg);
-                                return -1;
-                        }
-                        lladdr[i] = temp;
-                        if (!cp) {
-                                break;
-                        }
-                        arg = cp;
+        for (i = 0; i < len; i++) {
+                int temp;
+                char *cp = strchr(arg, ':');
+                if (cp) {
+                        *cp = 0;
+                        cp++;
+                }
+                if (sscanf(arg, "%x", &temp) != 1 || (temp < 0 || temp > 255)) {
+                        bb_error_msg("\"%s\" is invalid lladdr", arg);
+                        return -1;
+                }
+                lladdr[i] = temp;
+                if (!cp) {
+                        break;
                 }
-                return i+1;
+                arg = cp;
         }
+        return i+1;
 }