[PATCH v2 11/32] bootm: Reduce arguments to boot_get_kernel()

[Simon Glass]

This function only uses one argument and just needs to know the name of
the command which called it. Adjust the function to use only what it
needs. This will make it easier to call from a non-command context.

Tidy up the function comment while we are here.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

Changes in v2:
- Use the command table to provide the command name, instead of "bootm"

 boot/bootm.c | 22 +++++++++++++---------
 1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/boot/bootm.c b/boot/bootm.c
index e323c8b758e9..ea1575bd07eb 100644
--- a/boot/bootm.c
+++ b/boot/bootm.c
@@ -102,9 +102,14 @@ static struct legacy_img_hdr *image_get_kernel(ulong img_addr, int verify)
 #endif
 
 /**
- * boot_get_kernel - find kernel image
+ * boot_get_kernel() - find kernel image
+ *
+ * @cmd_name: Name of the command calling this function, e.g. "bootm"
+ * @addr_fit: first argument to bootm: address, fit configuration, etc.
  * @os_data: pointer to a ulong variable, will hold os data start address
  * @os_len: pointer to a ulong variable, will hold os data length
+ *     address and length, otherwise NULL
+ *     pointer to image header if valid image was found, plus kernel start
  *
  * boot_get_kernel() tries to find a kernel image, verifies its integrity
  * and locates kernel data.
@@ -113,8 +118,8 @@ static struct legacy_img_hdr *image_get_kernel(ulong img_addr, int verify)
  *     pointer to image header if valid image was found, plus kernel start
  *     address and length, otherwise NULL
  */
-static const void *boot_get_kernel(struct cmd_tbl *cmdtp, int flag, int argc,
-				   char *const argv[], struct bootm_headers *images,
+static const void *boot_get_kernel(const char *cmd_name, const char *addr_fit,
+				   struct bootm_headers *images,
 				   ulong *os_data, ulong *os_len)
 {
 #if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)
@@ -131,8 +136,7 @@ static const void *boot_get_kernel(struct cmd_tbl *cmdtp, int flag, int argc,
 	const void *boot_img;
 	const void *vendor_boot_img;
 #endif
-	img_addr = genimg_get_kernel_addr_fit(argc < 1 ? NULL : argv[0],
-					      &fit_uname_config,
+	img_addr = genimg_get_kernel_addr_fit(addr_fit, &fit_uname_config,
 					      &fit_uname_kernel);
 
 	if (IS_ENABLED(CONFIG_CMD_BOOTM_PRE_LOAD))
@@ -169,7 +173,7 @@ static const void *boot_get_kernel(struct cmd_tbl *cmdtp, int flag, int argc,
 			break;
 		default:
 			printf("Wrong Image Type for %s command\n",
-			       cmdtp->name);
+			       cmd_name);
 			bootstage_error(BOOTSTAGE_ID_CHECK_IMAGETYPE);
 			return NULL;
 		}
@@ -223,7 +227,7 @@ static const void *boot_get_kernel(struct cmd_tbl *cmdtp, int flag, int argc,
 		break;
 #endif
 	default:
-		printf("Wrong Image Format for %s command\n", cmdtp->name);
+		printf("Wrong Image Format for %s command\n", cmd_name);
 		bootstage_error(BOOTSTAGE_ID_FIT_KERNEL_INFO);
 		return NULL;
 	}
@@ -312,8 +316,8 @@ static int bootm_find_os(struct cmd_tbl *cmdtp, int flag, int argc,
 	int ret;
 
 	/* get kernel image header, start address and length */
-	os_hdr = boot_get_kernel(cmdtp, flag, argc, argv,
-			&images, &images.os.image_start, &images.os.image_len);
+	os_hdr = boot_get_kernel(cmdtp->name, argv[0], &images,
+				 &images.os.image_start, &images.os.image_len);
 	if (images.os.image_len == 0) {
 		puts("ERROR: can't get kernel image!\n");
 		return 1;
-- 
2.43.0.rc0.421.g78406f8d94-goog