scsi: replace obsolete NLMSG_* with type safe nlmsg_*

Signed-off-by: Hong Zhiguo <honkiko@gmail.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
index e894ca7..e106c27 100644
--- a/drivers/scsi/scsi_transport_fc.c
+++ b/drivers/scsi/scsi_transport_fc.c
@@ -35,7 +35,6 @@
 #include <scsi/scsi_transport.h>
 #include <scsi/scsi_transport_fc.h>
 #include <scsi/scsi_cmnd.h>
-#include <linux/netlink.h>
 #include <net/netlink.h>
 #include <scsi/scsi_netlink_fc.h>
 #include <scsi/scsi_bsg_fc.h>
@@ -534,7 +533,7 @@
 	struct nlmsghdr	*nlh;
 	struct fc_nl_event *event;
 	const char *name;
-	u32 len, skblen;
+	u32 len;
 	int err;
 
 	if (!scsi_nl_sock) {
@@ -543,21 +542,19 @@
 	}
 
 	len = FC_NL_MSGALIGN(sizeof(*event));
-	skblen = NLMSG_SPACE(len);
 
-	skb = alloc_skb(skblen, GFP_KERNEL);
+	skb = nlmsg_new(len, GFP_KERNEL);
 	if (!skb) {
 		err = -ENOBUFS;
 		goto send_fail;
 	}
 
-	nlh = nlmsg_put(skb, 0, 0, SCSI_TRANSPORT_MSG,
-				skblen - sizeof(*nlh), 0);
+	nlh = nlmsg_put(skb, 0, 0, SCSI_TRANSPORT_MSG, len, 0);
 	if (!nlh) {
 		err = -ENOBUFS;
 		goto send_fail_skb;
 	}
-	event = NLMSG_DATA(nlh);
+	event = nlmsg_data(nlh);
 
 	INIT_SCSI_NL_HDR(&event->snlh, SCSI_NL_TRANSPORT_FC,
 				FC_NL_ASYNC_EVENT, len);
@@ -604,7 +601,7 @@
 	struct sk_buff *skb;
 	struct nlmsghdr	*nlh;
 	struct fc_nl_event *event;
-	u32 len, skblen;
+	u32 len;
 	int err;
 
 	if (!scsi_nl_sock) {
@@ -613,21 +610,19 @@
 	}
 
 	len = FC_NL_MSGALIGN(sizeof(*event) + data_len);
-	skblen = NLMSG_SPACE(len);
 
-	skb = alloc_skb(skblen, GFP_KERNEL);
+	skb = nlmsg_new(len, GFP_KERNEL);
 	if (!skb) {
 		err = -ENOBUFS;
 		goto send_vendor_fail;
 	}
 
-	nlh = nlmsg_put(skb, 0, 0, SCSI_TRANSPORT_MSG,
-				skblen - sizeof(*nlh), 0);
+	nlh = nlmsg_put(skb, 0, 0, SCSI_TRANSPORT_MSG, len, 0);
 	if (!nlh) {
 		err = -ENOBUFS;
 		goto send_vendor_fail_skb;
 	}
-	event = NLMSG_DATA(nlh);
+	event = nlmsg_data(nlh);
 
 	INIT_SCSI_NL_HDR(&event->snlh, SCSI_NL_TRANSPORT_FC,
 				FC_NL_ASYNC_EVENT, len);