Merge patch series "'part name' subcommand and some robustification"

Rasmus Villemoes <[email protected]> says:

Implement a "part name" subcommand, mirroring the existing "part
number" subcommand.

In the discussion for v1 of that, it came up that there's a bit of
inconsistency in how much and what one can assume to be initialized in
'struct disk_partition' after a successful call of one of the
get_info* family of functions. Patch 1/2 tries to consolidate
that by making sure all ->get_info invocations go through a common
helper that at least always initializes the string members.

Quentin, I've taken the liberty of including your Acks, as the
incremental diff in patch 1 is quite minor, but do speak up if I
should not have done that.

Link: https://lore.kernel.org/r/[email protected]

1 files changed, 16 insertions, 0 deletions

diff --git a/include/part.h b/include/part.h
index 6caaa6526aa..d940f8b5d0e 100644
--- a/include/part.h
+++ b/include/part.h
@@ -509,6 +509,22 @@ struct part_driver {
 	int (*test)(struct blk_desc *desc);
 };
 
+/**
+ * part_driver_get_info() - Call the part_driver's get_info method
+ *
+ * On success, string members of info are guaranteed to be properly
+ * initialized, though they may be empty.
+ *
+ * @drv:	Partition driver
+ * @desc:	Block device descriptor
+ * @part:	Partition number to read
+ * @info:	Returned partition information
+ *
+ * Return: 0 on success, negative errno on failure.
+ */
+int part_driver_get_info(struct part_driver *drv, struct blk_desc *desc, int part,
+			 struct disk_partition *info);
+
 /* Declare a new U-Boot partition 'driver' */
 #define U_BOOT_PART_TYPE(__name)					\
 	ll_entry_declare(struct part_driver, __name, part_driver)