[SCSI] remove the scsi_request interface from the gdth driver

Initial pass at converting the gdth driver away from the scsi_request
interface so that the request interface can be removed post 2.6.18
without breaking gdth.  Based on changes from Christoph Hellwig
<hch@lst.de>

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/gdth_proc.h b/drivers/scsi/gdth_proc.h
index 295e825..a679eeb 100644
--- a/drivers/scsi/gdth_proc.h
+++ b/drivers/scsi/gdth_proc.h
@@ -5,20 +5,16 @@
  * $Id: gdth_proc.h,v 1.16 2004/01/14 13:09:01 achim Exp $
  */
 
+int gdth_execute(struct Scsi_Host *shost, gdth_cmd_str *gdtcmd, char *cmnd,
+                 int timeout, u32 *info);
+
 static int gdth_set_info(char *buffer,int length,struct Scsi_Host *host,
                          int hanum,int busnum);
 static int gdth_get_info(char *buffer,char **start,off_t offset,int length,
                          struct Scsi_Host *host,int hanum,int busnum);
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
-static void gdth_do_req(Scsi_Request *srp, gdth_cmd_str *cmd, 
-                        char *cmnd, int timeout);
-static int gdth_set_asc_info(char *buffer,int length,int hanum,Scsi_Request *scp);
-#else
-static void gdth_do_cmd(Scsi_Cmnd *scp, gdth_cmd_str *cmd, 
-                        char *cmnd, int timeout);
-static int gdth_set_asc_info(char *buffer,int length,int hanum,Scsi_Cmnd *scp);
-#endif
+static int gdth_set_asc_info(struct Scsi_Host *host, char *buffer,
+                             int length, int hanum);
 
 static char *gdth_ioctl_alloc(int hanum, int size, int scratch,
                               ulong64 *paddr);  
@@ -28,7 +24,5 @@
 static void gdth_start_timeout(int hanum, int busnum, int id);
 static int gdth_update_timeout(int hanum, Scsi_Cmnd *scp, int timeout);
 
-void gdth_scsi_done(Scsi_Cmnd *scp);
-
 #endif