sctp: move global declaration to header file.

sctp_chunk_cachep & sctp_bucket_cachep is used module global, so move it
to a header file.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>

include/net/sctp/sctp.h

diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index 16baef4..d529045 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -190,6 +190,16 @@
 
 
 /*
+ * Module global variables
+ */
+
+ /*
+  * sctp/protocol.c
+  */
+extern struct kmem_cache *sctp_chunk_cachep __read_mostly;
+extern struct kmem_cache *sctp_bucket_cachep __read_mostly;
+
+/*
  *  Section:  Macros, externs, and inlines
  */
 

net/sctp/sm_make_chunk.c

diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index 8d18f57..ad02311 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -65,8 +65,6 @@
 #include <net/sctp/sctp.h>
 #include <net/sctp/sm.h>
 
-extern struct kmem_cache *sctp_chunk_cachep;
-
 SCTP_STATIC
 struct sctp_chunk *sctp_make_chunk(const struct sctp_association *asoc,
 				   __u8 type, __u8 flags, int paylen);

net/sctp/socket.c

diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index f8bacc8..f8de0eb 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -107,8 +107,6 @@
 			      struct sctp_association *, sctp_socket_type_t);
 static char *sctp_hmac_alg = SCTP_COOKIE_HMAC_ALG;
 
-extern struct kmem_cache *sctp_bucket_cachep;
-
 /* Get the sndbuf space available at the time on the association.  */
 static inline int sctp_wspace(struct sctp_association *asoc)
 {