[SCSI] gdth: clean up host private data

  - Based on same patch from Christoph Hellwig <hch@lst.de>

  - Get rid of all the indirection in the Scsi_Host private data and always
    put the gdth_ha_str directly into it.

  - Change all internal functions prototype to recieve an "gdth_ha_str *ha"
    pointer directlly and kill all that redundent access to the "gdth_ctr_tab[]"
    controller-table.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/gdth_proc.h b/drivers/scsi/gdth_proc.h
index dd71777..45e6fda 100644
--- a/drivers/scsi/gdth_proc.h
+++ b/drivers/scsi/gdth_proc.h
@@ -9,20 +9,20 @@
                  int timeout, u32 *info);
 
 static int gdth_set_info(char *buffer,int length,struct Scsi_Host *host,
-                         int hanum);
+                         gdth_ha_str *ha);
 static int gdth_get_info(char *buffer,char **start,off_t offset,int length,
-                         struct Scsi_Host *host,int hanum);
+                         struct Scsi_Host *host, gdth_ha_str *ha);
 
 static int gdth_set_asc_info(struct Scsi_Host *host, char *buffer,
-                             int length, int hanum);
+                             int length, gdth_ha_str *ha);
 
-static char *gdth_ioctl_alloc(int hanum, int size, int scratch,
-                              ulong64 *paddr);  
-static void gdth_ioctl_free(int hanum, int size, char *buf, ulong64 paddr);
-static void gdth_wait_completion(int hanum, int busnum, int id);
-static void gdth_stop_timeout(int hanum, int busnum, int id);
-static void gdth_start_timeout(int hanum, int busnum, int id);
-static int gdth_update_timeout(int hanum, Scsi_Cmnd *scp, int timeout);
+static char *gdth_ioctl_alloc(gdth_ha_str *ha, int size, int scratch,
+                              ulong64 *paddr);
+static void gdth_ioctl_free(gdth_ha_str *ha, int size, char *buf, ulong64 paddr);
+static void gdth_wait_completion(gdth_ha_str *ha, int busnum, int id);
+static void gdth_stop_timeout(gdth_ha_str *ha, int busnum, int id);
+static void gdth_start_timeout(gdth_ha_str *ha, int busnum, int id);
+static int gdth_update_timeout(Scsi_Cmnd *scp, int timeout);
 
 #endif