net: Remove casts of void *

Unnecessary casts of void * clutter the code.

These are the remainder casts after several specific
patches to remove netdev_priv and dev_priv.

Done via coccinelle script:

$ cat cast_void_pointer.cocci
@@
type T;
T *pt;
void *pv;
@@

- pt = (T *)pv;
+ pt = pv;

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: David S. Miller <davem@conan.davemloft.net>
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 60038fe..fd31b36 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -476,7 +476,7 @@
 		/* The list may contain either IPv4 or IPv6 address;
 		 * determine the address length for walking thru the list.
 		 */
-		sa_addr = (struct sockaddr *)addr_buf;
+		sa_addr = addr_buf;
 		af = sctp_get_af_specific(sa_addr->sa_family);
 		if (!af) {
 			retval = -EINVAL;
@@ -555,7 +555,7 @@
 		 */
 		addr_buf = addrs;
 		for (i = 0; i < addrcnt; i++) {
-			addr = (union sctp_addr *)addr_buf;
+			addr = addr_buf;
 			af = sctp_get_af_specific(addr->v4.sin_family);
 			if (!af) {
 				retval = -EINVAL;
@@ -588,7 +588,7 @@
 		 */
 		addr_buf = addrs;
 		for (i = 0; i < addrcnt; i++) {
-			addr = (union sctp_addr *)addr_buf;
+			addr = addr_buf;
 			af = sctp_get_af_specific(addr->v4.sin_family);
 			memcpy(&saveaddr, addr, af->sockaddr_len);
 			retval = sctp_add_bind_addr(bp, &saveaddr,
@@ -659,7 +659,7 @@
 			goto err_bindx_rem;
 		}
 
-		sa_addr = (union sctp_addr *)addr_buf;
+		sa_addr = addr_buf;
 		af = sctp_get_af_specific(sa_addr->sa.sa_family);
 		if (!af) {
 			retval = -EINVAL;
@@ -758,7 +758,7 @@
 		 */
 		addr_buf = addrs;
 		for (i = 0; i < addrcnt; i++) {
-			laddr = (union sctp_addr *)addr_buf;
+			laddr = addr_buf;
 			af = sctp_get_af_specific(laddr->v4.sin_family);
 			if (!af) {
 				retval = -EINVAL;
@@ -830,7 +830,7 @@
 		 */
 		addr_buf = addrs;
 		for (i = 0; i < addrcnt; i++) {
-			laddr = (union sctp_addr *)addr_buf;
+			laddr = addr_buf;
 			af = sctp_get_af_specific(laddr->v4.sin_family);
 			list_for_each_entry(saddr, &bp->address_list, list) {
 				if (sctp_cmp_addr_exact(&saddr->a, laddr))
@@ -997,7 +997,7 @@
 			return -EINVAL;
 		}
 
-		sa_addr = (struct sockaddr *)addr_buf;
+		sa_addr = addr_buf;
 		af = sctp_get_af_specific(sa_addr->sa_family);
 
 		/* If the address family is not supported or if this address
@@ -1088,7 +1088,7 @@
 			goto out_free;
 		}
 
-		sa_addr = (union sctp_addr *)addr_buf;
+		sa_addr = addr_buf;
 		af = sctp_get_af_specific(sa_addr->sa.sa_family);
 
 		/* If the address family is not supported or if this address