libfc: use ARRAY_SIZE

Change sizeof(x) / sizeof(*x) to ARRAY_SIZE(x).

Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/scsi/libfc/fc_exch.c

@@ -219,8 +219,6 @@ static void fc_exch_els_rrq(struct fc_seq *, struct fc_frame *);
  */
 static char *fc_exch_rctl_names[] = FC_RCTL_NAMES_INIT;
 
-#define FC_TABLE_SIZE(x)   (sizeof(x) / sizeof(x[0]))
-
 /**
  * fc_exch_name_lookup() - Lookup name by opcode
  * @op:	       Opcode to be looked up
@@ -249,7 +247,7 @@ static inline const char *fc_exch_name_lookup(unsigned int op, char **table,
 static const char *fc_exch_rctl_name(unsigned int op)
 {
 	return fc_exch_name_lookup(op, fc_exch_rctl_names,
-				   FC_TABLE_SIZE(fc_exch_rctl_names));
+				   ARRAY_SIZE(fc_exch_rctl_names));
 }
 
 /**