[2/4] cmd: part: support lookup by UUID in 'part number'
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Message ID 20260328171624.2377527-3-dario.binacchi@amarulasolutions.com
State New
Headers show
Series
  • Support metadata-driven A/B boot for STM32MP25
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Commit Message

Dario Binacchi March 28, 2026, 5:15 p.m. UTC 
The 'part number' command currently allows looking up a partition
index only by its name.

Extend the command to support looking up the partition index via its
partition UUID. Unlike names, UUIDs guarantee unique partition
identification, avoiding ambiguity.

The logic is updated to check if the provided string is a valid UUID
before falling back to a name-based search.

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
---

 cmd/part.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

Patch
diff mbox series 

diff --git a/cmd/part.c b/cmd/part.c
index 975a0a08a99d..a3f3febb6977 100644
--- a/cmd/part.c
+++ b/cmd/part.c
@@ -139,6 +139,10 @@  static int do_part_info(int argc, char *const argv[], enum cmd_part_info param)
 		err = part_get_info(desc, part, &info);
 		if (err)
 			return 1;
+	} else if (uuid_str_valid(argv[2])) {
+		part = part_get_info_by_uuid(desc, argv[2], &info);
+		if (part < 0)
+			return 1;
 	} else {
 		part = part_get_info_by_name(desc, argv[2], &info);
 		if (part < 0)
@@ -314,8 +318,8 @@  U_BOOT_CMD(
 	"    - set environment variable to the size of the partition (in blocks)\n"
 	"      part can be either partition number or partition name\n"
 	"part number <interface> <dev> <part> <varname>\n"
-	"    - set environment variable to the partition number using the partition name\n"
-	"      part must be specified as partition name\n"
+	"    - set environment variable to the partition number using the partition UUID or name\n"
+	"      part must be specified as partition UUID or name\n"
 	"part name <interface> <dev> <part> <varname>\n"
 	"    - set environment variable to the partition name using the partition number\n"
 	"      part must be specified as partition number\n"