[SCSI] libfc: Move non-common routines and prototypes out of libfc.h

This patch moves all non-common routines and function prototypes
out of libfc.h and into the appropriate .c files. It makes these
routines 'static' when necessary and removes any unnecessary EXPORT_SYMBOL
statements.

A result of moving the fc_exch_seq_send, fc_seq_els_rsp_send, fc_exch_alloc
and fc_seq_start_next prototypes out of libfc.h is that they were no longer
being imported into fc_exch.c when libfc.h was included. This caused errors
where routines in fc_exch.c were looking for undefined symbols. To fix this
this patch reorganizes fc_seq_alloc, fc_seq_start_next and
fc_seq_start_next_locked. This move also made it so that
fc_seq_start_next_locked did not need to be prototyped at the top of
fc_exch.c.
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

include/scsi/libfc.h

@@ -1011,55 +1011,6 @@ void fc_exch_mgr_free(struct fc_lport *lport);
  */
 void fc_exch_recv(struct fc_lport *lp, struct fc_frame *fp);
 
-/*
- * This function is for exch_seq_send function pointer in
- * struct libfc_function_template, see comment block on
- * exch_seq_send for description of this function.
- */
-struct fc_seq *fc_exch_seq_send(struct fc_lport *lp,
-				struct fc_frame *fp,
-				void (*resp)(struct fc_seq *sp,
-					     struct fc_frame *fp,
-					     void *arg),
-				void (*destructor)(struct fc_seq *sp,
-						   void *arg),
-				void *arg, u32 timer_msec);
-
-/*
- * send a frame using existing sequence and exchange.
- */
-int fc_seq_send(struct fc_lport *lp, struct fc_seq *sp, struct fc_frame *fp);
-
-/*
- * Send ELS response using mainly infomation
- * in exchange and sequence in EM layer.
- */
-void fc_seq_els_rsp_send(struct fc_seq *sp, enum fc_els_cmd els_cmd,
-			 struct fc_seq_els_data *els_data);
-
-/*
- * This function is for seq_exch_abort function pointer in
- * struct libfc_function_template, see comment block on
- * seq_exch_abort for description of this function.
- */
-int fc_seq_exch_abort(const struct fc_seq *req_sp, unsigned int timer_msec);
-
-/*
- * Indicate that an exchange/sequence tuple is complete and the memory
- * allocated for the related objects may be freed.
- */
-void fc_exch_done(struct fc_seq *sp);
-
-/*
- * Allocate a new exchange and sequence pair.
- */
-struct fc_exch *fc_exch_alloc(struct fc_lport *lport, struct fc_frame *fp);
-/*
- * Start a new sequence on the same exchange as the supplied sequence.
- */
-struct fc_seq *fc_seq_start_next(struct fc_seq *sp);
-
-
 /*
  * Reset all EMs of a lport, releasing its all sequences and
  * exchanges. If sid is non-zero, then reset only exchanges