header: fix broken headers for user space

__packed is only defined in kernel space, so we should use
__attribute__((packed)) for the code shared between kernel and user space.

Two __attribute() annotations are replaced with __attribute__() too.

Signed-off-by: Changli Gao <xiaosuo@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 1925e0c..27741e0 100644
--- a/include/linux/if_pppox.h
+++ b/include/linux/if_pppox.h
@@ -59,7 +59,7 @@
        union{ 
                struct pppoe_addr       pppoe; 
        }sa_addr; 
-} __packed;
+} __attribute__((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;
-} __packed;
+} __attribute__((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;
-} __packed;
+} __attribute__((packed));
 
 /*********************************************************************
  *
@@ -101,7 +101,7 @@
 	__be16 tag_type;
 	__be16 tag_len;
 	char tag_data[0];
-} __attribute ((packed));
+} __attribute__ ((packed));
 
 /* Tag identifiers */
 #define PTT_EOL		__cpu_to_be16(0x0000)
@@ -129,7 +129,7 @@
 	__be16 sid;
 	__be16 length;
 	struct pppoe_tag tag[0];
-} __packed;
+} __attribute__((packed));
 
 /* Length of entire PPPoE + PPP header */
 #define PPPOE_SES_HLEN	8