Rather than having a bunch of random commands handle autostart behavior,
unify the logic in a single place.  This also fixes building of these
different commands when bootm is disabled.

Acked-by: Matthew McClintock <m...@freescale.com>
Acked-by: Scott Wood <scottw...@freescale.com>
Signed-off-by: Mike Frysinger <vap...@gentoo.org>
---
v3
        - fix unused warnings arising from variables no longer being used

 common/cmd_bootm.c |   15 +++++++++++++++
 common/cmd_fdc.c   |   16 +---------------
 common/cmd_fdos.c  |   11 +----------
 common/cmd_ide.c   |   15 +--------------
 common/cmd_nand.c  |   16 ++--------------
 common/cmd_net.c   |   13 ++-----------
 common/cmd_scsi.c  |   11 +----------
 common/cmd_usb.c   |   13 ++-----------
 include/command.h  |    8 ++++++++
 9 files changed, 33 insertions(+), 85 deletions(-)

diff --git a/common/cmd_bootm.c b/common/cmd_bootm.c
index 18019d6..8982c92 100644
--- a/common/cmd_bootm.c
+++ b/common/cmd_bootm.c
@@ -707,6 +707,21 @@ int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char * 
const argv[])
        return 1;
 }
 
+int bootm_maybe_autostart(cmd_tbl_t *cmdtp, const char *cmd)
+{
+       const char *ep = getenv("autostart");
+
+       if (ep && !strcmp(ep, "yes")) {
+               char *local_args[2];
+               local_args[0] = (char *)cmd;
+               local_args[1] = NULL;
+               printf("Automatic boot of image at addr 0x%08lX ...\n", 
load_addr);
+               return do_bootm(cmdtp, 0, 1, local_args);
+       }
+
+       return 0;
+}
+
 /**
  * image_get_kernel - verify legacy format kernel image
  * @img_addr: in RAM address of the legacy format image to be verified
diff --git a/common/cmd_fdc.c b/common/cmd_fdc.c
index cdb050c..40d12f6 100644
--- a/common/cmd_fdc.c
+++ b/common/cmd_fdc.c
@@ -721,8 +721,6 @@ int do_fdcboot (cmd_tbl_t *cmdtp, int flag, int argc, char 
* const argv[])
        image_header_t *hdr;  /* used for fdc boot */
        unsigned char boot_drive;
        int i,nrofblk;
-       char *ep;
-       int rcode = 0;
 #if defined(CONFIG_FIT)
        const void *fit_hdr = NULL;
 #endif
@@ -823,19 +821,7 @@ int do_fdcboot (cmd_tbl_t *cmdtp, int flag, int argc, char 
* const argv[])
        /* Loading ok, update default load address */
        load_addr = addr;
 
-       /* Check if we should attempt an auto-start */
-       if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) {
-               char *local_args[2];
-
-               local_args[0] = argv[0];
-               local_args[1] = NULL;
-
-               printf ("Automatic boot of image at addr 0x%08lX ...\n", addr);
-
-               do_bootm (cmdtp, 0, 1, local_args);
-               rcode ++;
-       }
-       return rcode;
+       return bootm_maybe_autostart(cmdtp, argv[0]);
 }
 
 U_BOOT_CMD(
diff --git a/common/cmd_fdos.c b/common/cmd_fdos.c
index 2af4ca0..d714af8 100644
--- a/common/cmd_fdos.c
+++ b/common/cmd_fdos.c
@@ -40,7 +40,6 @@ int do_fdosboot(cmd_tbl_t *cmdtp, int flag, int argc, char * 
const argv[])
     char *name;
     char *ep;
     int size;
-    int rcode = 0;
     char buf [12];
     int drive = CONFIG_SYS_FDC_DRIVE_NUMBER;
 
@@ -98,15 +97,7 @@ int do_fdosboot(cmd_tbl_t *cmdtp, int flag, int argc, char * 
const argv[])
     printf("Floppy DOS load complete: %d bytes loaded to 0x%lx\n",
           size, load_addr);
 
-    /* Check if we should attempt an auto-start */
-    if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) {
-       char *local_args[2];
-       local_args[0] = argv[0];
-       local_args[1] = NULL;
-       printf ("Automatic boot of image at addr 0x%08lX ...\n", load_addr);
-       rcode = do_bootm (cmdtp, 0, 1, local_args);
-    }
-    return rcode;
+    return bootm_maybe_autostart(cmdtp, argv[0]);
 }
 
 /*-----------------------------------------------------------------------------
diff --git a/common/cmd_ide.c b/common/cmd_ide.c
index a1f7e57..07890e7 100644
--- a/common/cmd_ide.c
+++ b/common/cmd_ide.c
@@ -356,7 +356,6 @@ int do_diskboot (cmd_tbl_t *cmdtp, int flag, int argc, char 
* const argv[])
        ulong addr, cnt;
        disk_partition_t info;
        image_header_t *hdr;
-       int rcode = 0;
 #if defined(CONFIG_FIT)
        const void *fit_hdr = NULL;
 #endif
@@ -495,19 +494,7 @@ int do_diskboot (cmd_tbl_t *cmdtp, int flag, int argc, 
char * const argv[])
 
        load_addr = addr;
 
-       /* Check if we should attempt an auto-start */
-       if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) {
-               char *local_args[2];
-
-               local_args[0] = argv[0];
-               local_args[1] = NULL;
-
-               printf ("Automatic boot of image at addr 0x%08lX ...\n", addr);
-
-               do_bootm (cmdtp, 0, 1, local_args);
-               rcode = 1;
-       }
-       return rcode;
+       return bootm_maybe_autostart(cmdtp, argv[0]);
 }
 
 /* ------------------------------------------------------------------------- */
diff --git a/common/cmd_nand.c b/common/cmd_nand.c
index 7bd37de..53fe17b 100644
--- a/common/cmd_nand.c
+++ b/common/cmd_nand.c
@@ -724,7 +724,7 @@ static int nand_load_image(cmd_tbl_t *cmdtp, nand_info_t 
*nand,
                           ulong offset, ulong addr, char *cmd)
 {
        int r;
-       char *ep, *s;
+       char *s;
        size_t cnt;
        image_header_t *hdr;
 #if defined(CONFIG_FIT)
@@ -799,19 +799,7 @@ static int nand_load_image(cmd_tbl_t *cmdtp, nand_info_t 
*nand,
 
        load_addr = addr;
 
-       /* Check if we should attempt an auto-start */
-       if (((ep = getenv("autostart")) != NULL) && (strcmp(ep, "yes") == 0)) {
-               char *local_args[2];
-
-               local_args[0] = cmd;
-               local_args[1] = NULL;
-
-               printf("Automatic boot of image at addr 0x%08lx ...\n", addr);
-
-               do_bootm(cmdtp, 0, 1, local_args);
-               return 1;
-       }
-       return 0;
+       return bootm_maybe_autostart(cmdtp, cmd);
 }
 
 int do_nandboot(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
diff --git a/common/cmd_net.c b/common/cmd_net.c
index 8c6f5c8..064de49 100644
--- a/common/cmd_net.c
+++ b/common/cmd_net.c
@@ -210,17 +210,8 @@ netboot_common (proto_t proto, cmd_tbl_t *cmdtp, int argc, 
char * const argv[])
        /* flush cache */
        flush_cache(load_addr, size);
 
-       /* Loading ok, check if we should attempt an auto-start */
-       if (((s = getenv("autostart")) != NULL) && (strcmp(s,"yes") == 0)) {
-               char *local_args[2];
-               local_args[0] = argv[0];
-               local_args[1] = NULL;
-
-               printf ("Automatic boot of image at addr 0x%08lX ...\n",
-                       load_addr);
-               show_boot_progress (82);
-               rcode = do_bootm (cmdtp, 0, 1, local_args);
-       }
+       show_boot_progress(82);
+       rcode = bootm_maybe_autostart(cmdtp, argv[0]);
 
        if (rcode < 0)
                show_boot_progress (-83);
diff --git a/common/cmd_scsi.c b/common/cmd_scsi.c
index be4fe74..8019ada 100644
--- a/common/cmd_scsi.c
+++ b/common/cmd_scsi.c
@@ -210,7 +210,6 @@ int do_scsiboot (cmd_tbl_t *cmdtp, int flag, int argc, char 
* const argv[])
        ulong addr, cnt;
        disk_partition_t info;
        image_header_t *hdr;
-       int rcode = 0;
 #if defined(CONFIG_FIT)
        const void *fit_hdr = NULL;
 #endif
@@ -326,15 +325,7 @@ int do_scsiboot (cmd_tbl_t *cmdtp, int flag, int argc, 
char * const argv[])
 
        flush_cache (addr, (cnt+1)*info.blksz);
 
-       /* Check if we should attempt an auto-start */
-       if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) {
-               char *local_args[2];
-               local_args[0] = argv[0];
-               local_args[1] = NULL;
-               printf ("Automatic boot of image at addr 0x%08lX ...\n", addr);
-               rcode = do_bootm (cmdtp, 0, 1, local_args);
-       }
-        return rcode;
+       return bootm_maybe_autostart(cmdtp, argv[0]);
 }
 
 
/*********************************************************************************
diff --git a/common/cmd_usb.c b/common/cmd_usb.c
index b5731a7..968bdf3 100644
--- a/common/cmd_usb.c
+++ b/common/cmd_usb.c
@@ -356,7 +356,7 @@ int do_usbboot(cmd_tbl_t *cmdtp, int flag, int argc, char * 
const argv[])
 {
        char *boot_device = NULL;
        char *ep;
-       int dev, part = 1, rcode;
+       int dev, part = 1;
        ulong addr, cnt;
        disk_partition_t info;
        image_header_t *hdr;
@@ -490,16 +490,7 @@ int do_usbboot(cmd_tbl_t *cmdtp, int flag, int argc, char 
* const argv[])
 
        flush_cache(addr, (cnt+1)*info.blksz);
 
-       /* Check if we should attempt an auto-start */
-       if (((ep = getenv("autostart")) != NULL) && (strcmp(ep, "yes") == 0)) {
-               char *local_args[2];
-               local_args[0] = argv[0];
-               local_args[1] = NULL;
-               printf("Automatic boot of image at addr 0x%08lX ...\n", addr);
-               rcode = do_bootm(cmdtp, 0, 1, local_args);
-               return rcode;
-       }
-       return 0;
+       return bootm_maybe_autostart(cmdtp, argv[0]);
 }
 #endif /* CONFIG_USB_STORAGE */
 
diff --git a/include/command.h b/include/command.h
index cab9651..f1accd0 100644
--- a/include/command.h
+++ b/include/command.h
@@ -98,7 +98,15 @@ extern int cmd_get_data_size(char* arg, int default_size);
 #ifdef CONFIG_CMD_BOOTD
 extern int do_bootd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 #endif
+#ifdef CONFIG_CMD_BOOTM
 extern int do_bootm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
+extern int bootm_maybe_autostart(cmd_tbl_t *cmdtp, const char *cmd);
+#else
+static inline int bootm_maybe_autostart(cmd_tbl_t *cmdtp, const char *cmd)
+{
+       return 0;
+}
+#endif
 extern int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 #endif /* __ASSEMBLY__ */
-- 
1.7.5.3

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