bna: fix sparse warnings/errors

This fixes a several sparse warnings.
  * the __iomem tag was being used incorrectly (needs to be a prefix)
  * several variables should have been static since local to one file
  * the firmware was not being forwared declared
    and was const one place and not the other

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/brocade/bna/bna_types.h

@@ -427,7 +427,7 @@ struct bna_ethport {
 
 /* Doorbell structure */
 struct bna_ib_dbell {
-	void *__iomem doorbell_addr;
+	void __iomem   *doorbell_addr;
 	u32		doorbell_ack;
 };
 
@@ -463,7 +463,7 @@ struct bna_tcb {
 	u32		consumer_index;
 	volatile u32	*hw_consumer_index;
 	u32		q_depth;
-	void *__iomem q_dbell;
+	void __iomem   *q_dbell;
 	struct bna_ib_dbell *i_dbell;
 	int			page_idx;
 	int			page_count;
@@ -599,7 +599,7 @@ struct bna_rcb {
 	u32		producer_index;
 	u32		consumer_index;
 	u32		q_depth;
-	void *__iomem q_dbell;
+	void __iomem   *q_dbell;
 	int			page_idx;
 	int			page_count;
 	/* Control path */

drivers/net/ethernet/brocade/bna/bnad.c

@@ -53,9 +53,9 @@ MODULE_PARM_DESC(bna_debugfs_enable, "Enables debugfs feature, default=1,"
  * Global variables
  */
 u32 bnad_rxqs_per_cq = 2;
-u32 bna_id;
-struct mutex bnad_list_mutex;
-LIST_HEAD(bnad_list);
+static u32 bna_id;
+static struct mutex bnad_list_mutex;
+static LIST_HEAD(bnad_list);
 static const u8 bnad_bcast_addr[] =  {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 
 /*

drivers/net/ethernet/brocade/bna/bnad.h

@@ -347,7 +347,7 @@ struct bnad_drvinfo {
 /*
  * EXTERN VARIABLES
  */
-extern struct firmware *bfi_fw;
+extern const struct firmware *bfi_fw;
 extern u32		bnad_rxqs_per_cq;
 
 /*

drivers/net/ethernet/brocade/bna/cna_fwimg.c

@@ -16,6 +16,7 @@
  * www.brocade.com
  */
 #include <linux/firmware.h>
+#include "bnad.h"
 #include "bfi.h"
 #include "cna.h"