net: use __packed annotation

cleanup patch.

Use new __packed annotation in net/ and include/
(except netfilter)

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/if_pppox.h b/include/linux/if_pppox.h
index a6577af..1925e0c 100644
--- a/include/linux/if_pppox.h
+++ b/include/linux/if_pppox.h
@@ -59,7 +59,7 @@
        union{ 
                struct pppoe_addr       pppoe; 
        }sa_addr; 
-}__attribute__ ((packed)); 
+} __packed;
 
 /* The use of the above union isn't viable because the size of this
  * struct must stay fixed over time -- applications use sizeof(struct
@@ -70,7 +70,7 @@
 	sa_family_t     sa_family;      /* address family, AF_PPPOX */
 	unsigned int    sa_protocol;    /* protocol identifier */
 	struct pppol2tp_addr pppol2tp;
-}__attribute__ ((packed));
+} __packed;
 
 /* The L2TPv3 protocol changes tunnel and session ids from 16 to 32
  * bits. So we need a different sockaddr structure.
@@ -79,7 +79,7 @@
 	sa_family_t     sa_family;      /* address family, AF_PPPOX */
 	unsigned int    sa_protocol;    /* protocol identifier */
 	struct pppol2tpv3_addr pppol2tp;
-} __attribute__ ((packed));
+} __packed;
 
 /*********************************************************************
  *
@@ -129,7 +129,7 @@
 	__be16 sid;
 	__be16 length;
 	struct pppoe_tag tag[0];
-} __attribute__ ((packed));
+} __packed;
 
 /* Length of entire PPPoE + PPP header */
 #define PPPOE_SES_HLEN	8