[SCTP]: __nocast annotations

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sctp/chunk.c b/net/sctp/chunk.c
index 0c2ab78..61da293 100644
--- a/net/sctp/chunk.c
+++ b/net/sctp/chunk.c
@@ -62,7 +62,7 @@
 }
 
 /* Allocate and initialize datamsg. */
-SCTP_STATIC struct sctp_datamsg *sctp_datamsg_new(int gfp)
+SCTP_STATIC struct sctp_datamsg *sctp_datamsg_new(unsigned int __nocast gfp)
 {
 	struct sctp_datamsg *msg;
 	msg = kmalloc(sizeof(struct sctp_datamsg), gfp);