[PATCH 1_4] Merge common get_dev() routines for block devices

Each of the filesystem drivers duplicate the get_dev routine.  This change
merges them into a single function in part.c

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

7 files changed, 18 insertions, 113 deletions

diff --git a/common/cmd_ext2.c b/common/cmd_ext2.c
index 5db42f2..94bd9b6 100644
--- a/common/cmd_ext2.c
+++ b/common/cmd_ext2.c
@@ -33,6 +33,7 @@
  * Ext2fs support
  */
 #include <common.h>
+#include <part.h>
 
 #if (CONFIG_COMMANDS & CFG_CMD_EXT2)
 #include <config.h>
@@ -57,41 +58,6 @@
 #define PRINTF(fmt,args...)
 #endif
 
-static block_dev_desc_t *get_dev (char* ifname, int dev)
-{
-#if (CONFIG_COMMANDS & CFG_CMD_IDE)
-	if (strncmp(ifname,"ide",3)==0) {
-		extern block_dev_desc_t * ide_get_dev(int dev);
-		return((dev >= CFG_IDE_MAXDEVICE) ? NULL : ide_get_dev(dev));
-	}
-#endif
-#if (CONFIG_COMMANDS & CFG_CMD_SCSI)
-	if (strncmp(ifname,"scsi",4)==0) {
-		extern block_dev_desc_t * scsi_get_dev(int dev);
-		return((dev >= CFG_SCSI_MAXDEVICE) ? NULL : scsi_get_dev(dev));
-	}
-#endif
-#if ((CONFIG_COMMANDS & CFG_CMD_USB) && defined(CONFIG_USB_STORAGE))
-	if (strncmp(ifname,"usb",3)==0) {
-		extern block_dev_desc_t * usb_stor_get_dev(int dev);
-		return((dev >= USB_MAX_STOR_DEV) ? NULL : usb_stor_get_dev(dev));
-	}
-#endif
-#if defined(CONFIG_MMC)
-	if (strncmp(ifname,"mmc",3)==0) {
-		extern block_dev_desc_t *  mmc_get_dev(int dev);
-		return((dev >= 1) ? NULL : mmc_get_dev(dev));
-	}
-#endif
-#if defined(CONFIG_SYSTEMACE)
-	if (strcmp(ifname,"ace")==0) {
-		extern block_dev_desc_t *  systemace_get_dev(int dev);
-		return((dev >= 1) ? NULL : systemace_get_dev(dev));
-	}
-#endif
-	return(NULL);
-}
-
 int do_ext2ls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 {
 	char *filename = "/";
@@ -106,7 +72,7 @@ int do_ext2ls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 		return(1);
 	}
 	dev = (int)simple_strtoul (argv[2], &ep, 16);
-	dev_desc=get_dev(argv[1],dev);
+	dev_desc = get_dev(argv[1],dev);
 
 	if (dev_desc == NULL) {
 		printf ("\n** Block device %s %d not supported\n", argv[1], dev);
@@ -210,7 +176,7 @@ int do_ext2load (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	}
 
 	dev = (int)simple_strtoul (argv[2], &ep, 16);
-	dev_desc=get_dev(argv[1],dev);
+	dev_desc = get_dev(argv[1],dev);
 	if (dev_desc==NULL) {
 		printf ("\n** Block device %s %d not supported\n", argv[1], dev);
 		return(1);
diff --git a/common/cmd_fat.c b/common/cmd_fat.c
index 6844c10..afaf299 100644
--- a/common/cmd_fat.c
+++ b/common/cmd_fat.c
@@ -29,6 +29,7 @@
 #include <s_record.h>
 #include <net.h>
 #include <ata.h>
+#include <part.h>
 
 #if (CONFIG_COMMANDS & CFG_CMD_FAT)
 
@@ -37,42 +38,6 @@
 #include <fat.h>
 
 
-block_dev_desc_t *get_dev (char* ifname, int dev)
-{
-#if (CONFIG_COMMANDS & CFG_CMD_IDE)
-	if (strncmp(ifname,"ide",3)==0) {
-		extern block_dev_desc_t * ide_get_dev(int dev);
-		return(ide_get_dev(dev));
-	}
-#endif
-#if (CONFIG_COMMANDS & CFG_CMD_SCSI)
-	if (strncmp(ifname,"scsi",4)==0) {
-		extern block_dev_desc_t * scsi_get_dev(int dev);
-		return(scsi_get_dev(dev));
-	}
-#endif
-#if ((CONFIG_COMMANDS & CFG_CMD_USB) && defined(CONFIG_USB_STORAGE))
-	if (strncmp(ifname,"usb",3)==0) {
-		extern block_dev_desc_t * usb_stor_get_dev(int dev);
-		return(usb_stor_get_dev(dev));
-	}
-#endif
-#if defined(CONFIG_MMC)
-	if (strncmp(ifname,"mmc",3)==0) {
-		extern block_dev_desc_t *  mmc_get_dev(int dev);
-		return(mmc_get_dev(dev));
-	}
-#endif
-#if defined(CONFIG_SYSTEMACE)
-	if (strcmp(ifname,"ace")==0) {
-		extern block_dev_desc_t *  systemace_get_dev(int dev);
-		return(systemace_get_dev(dev));
-	}
-#endif
-	return NULL;
-}
-
-
 int do_fat_fsload (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 {
 	long size;
diff --git a/common/cmd_ide.c b/common/cmd_ide.c
index a415502..ebc080c 100644
--- a/common/cmd_ide.c
+++ b/common/cmd_ide.c
@@ -31,20 +31,26 @@
 #include <command.h>
 #include <image.h>
 #include <asm/byteorder.h>
+
 #if defined(CONFIG_IDE_8xx_DIRECT) || defined(CONFIG_IDE_PCMCIA)
 # include <pcmcia.h>
 #endif
+
 #ifdef CONFIG_8xx
 # include <mpc8xx.h>
 #endif
+
 #ifdef CONFIG_MPC5xxx
 #include <mpc5xxx.h>
 #endif
+
 #include <ide.h>
 #include <ata.h>
+
 #ifdef CONFIG_STATUS_LED
 # include <status_led.h>
 #endif
+
 #ifndef __PPC__
 #include <asm/io.h>
 #ifdef __MIPS__
@@ -697,7 +703,7 @@ void ide_init (void)
 
 block_dev_desc_t * ide_get_dev(int dev)
 {
-	return ((block_dev_desc_t *)&ide_dev_desc[dev]);
+	return (dev < CFG_IDE_MAXDEVICE) ? &ide_dev_desc[dev] : NULL;
 }
 
 
diff --git a/common/cmd_reiser.c b/common/cmd_reiser.c
index 508ffcb..09c86e6 100644
--- a/common/cmd_reiser.c
+++ b/common/cmd_reiser.c
@@ -35,6 +35,7 @@
 #include <linux/ctype.h>
 #include <asm/byteorder.h>
 #include <reiserfs.h>
+#include <part.h>
 
 #ifndef CONFIG_DOS_PARTITION
 #error DOS partition support must be selected
@@ -48,41 +49,6 @@
 #define PRINTF(fmt,args...)
 #endif
 
-static block_dev_desc_t *get_dev (char* ifname, int dev)
-{
-#if (CONFIG_COMMANDS & CFG_CMD_IDE)
-	if (strncmp(ifname,"ide",3)==0) {
-		extern block_dev_desc_t * ide_get_dev(int dev);
-		return((dev >= CFG_IDE_MAXDEVICE) ? NULL : ide_get_dev(dev));
-	}
-#endif
-#if (CONFIG_COMMANDS & CFG_CMD_SCSI)
-	if (strncmp(ifname,"scsi",4)==0) {
-		extern block_dev_desc_t * scsi_get_dev(int dev);
-		return((dev >= CFG_SCSI_MAXDEVICE) ? NULL : scsi_get_dev(dev));
-	}
-#endif
-#if ((CONFIG_COMMANDS & CFG_CMD_USB) && defined(CONFIG_USB_STORAGE))
-	if (strncmp(ifname,"usb",3)==0) {
-		extern block_dev_desc_t * usb_stor_get_dev(int dev);
-		return((dev >= USB_MAX_STOR_DEV) ? NULL : usb_stor_get_dev(dev));
-	}
-#endif
-#if defined(CONFIG_MMC)
-	if (strncmp(ifname,"mmc",3)==0) {
-		extern block_dev_desc_t *  mmc_get_dev(int dev);
-		return((dev >= 1) ? NULL : mmc_get_dev(dev));
-	}
-#endif
-#if defined(CONFIG_SYSTEMACE)
-	if (strcmp(ifname,"ace")==0) {
-		extern block_dev_desc_t *  systemace_get_dev(int dev);
-		return((dev >= 1) ? NULL : systemace_get_dev(dev));
-	}
-#endif
-	return NULL;
-}
-
 int do_reiserls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 {
 	char *filename = "/";
@@ -97,7 +63,7 @@ int do_reiserls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 		return 1;
 	}
 	dev = (int)simple_strtoul (argv[2], &ep, 16);
-	dev_desc=get_dev(argv[1],dev);
+	dev_desc = get_dev(argv[1],dev);
 
 	if (dev_desc == NULL) {
 		printf ("\n** Block device %s %d not supported\n", argv[1], dev);
@@ -196,7 +162,7 @@ int do_reiserload (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	}
 
 	dev = (int)simple_strtoul (argv[2], &ep, 16);
-	dev_desc=get_dev(argv[1],dev);
+	dev_desc = get_dev(argv[1],dev);
 	if (dev_desc==NULL) {
 		printf ("\n** Block device %s %d not supported\n", argv[1], dev);
 		return 1;
diff --git a/common/cmd_scsi.c b/common/cmd_scsi.c
index cc08743..b17bebb 100644
--- a/common/cmd_scsi.c
+++ b/common/cmd_scsi.c
@@ -194,7 +194,7 @@ void scsi_init(void)
 
 block_dev_desc_t * scsi_get_dev(int dev)
 {
-	return((block_dev_desc_t *)&scsi_dev_desc[dev]);
+	return (dev < CFG_SCSI_MAX_DEVICE) ? &scsi_dev_desc[dev] : NULL;
 }
 
 
diff --git a/common/cmd_usb.c b/common/cmd_usb.c
index 28c05aa..904df71 100644
--- a/common/cmd_usb.c
+++ b/common/cmd_usb.c
@@ -28,6 +28,7 @@
 #include <common.h>
 #include <command.h>
 #include <asm/byteorder.h>
+#include <part.h>
 
 #if (CONFIG_COMMANDS & CFG_CMD_USB)
 
diff --git a/common/usb_storage.c b/common/usb_storage.c
index 06ea99b..b4b7914 100644
--- a/common/usb_storage.c
+++ b/common/usb_storage.c
@@ -56,6 +56,7 @@
 
 
 #if (CONFIG_COMMANDS & CFG_CMD_USB)
+#include <part.h>
 #include <usb.h>
 
 #ifdef CONFIG_USB_STORAGE
@@ -174,7 +175,7 @@ void uhci_show_temp_int_td(void);
 
 block_dev_desc_t *usb_stor_get_dev(int index)
 {
-	return &usb_dev_desc[index];
+	return (index < USB_MAX_STOR_DEV) ? &usb_dev_desc[index] : NULL;
 }