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part: Support getting whole disk from part_get_info_by_dev_and_name_or_num 

This adds an option to part_get_info_by_dev_and_name_or_num to allow
callers to specify whether whole-disk partitions are fine.

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Sean Anderson 2021-02-05 09:38:56 -05:00 committed by Marek Vasut
parent 59715754e1
commit 9f7bb2825b
3 changed files with 10 additions and 4 deletions
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3
cmd/ab_select.c
View File

@ -22,7 +22,8 @@ static int do_ab_select(struct cmd_tbl *cmdtp, int flag, int argc,
/* Lookup the "misc" partition from argv[2] and argv[3] */
if (part_get_info_by_dev_and_name_or_num(argv[2], argv[3],
&dev_desc, &part_info) < 0) {
&dev_desc, &part_info,
false) < 0) {
return CMD_RET_FAILURE;
}

5
disk/part.c
View File

@ -737,7 +737,8 @@ static int part_get_info_by_dev_and_name(const char *dev_iface,
int part_get_info_by_dev_and_name_or_num(const char *dev_iface,
const char *dev_part_str,
struct blk_desc **dev_desc,
struct disk_partition *part_info)
struct disk_partition *part_info,
int allow_whole_dev)
{
int ret;
@ -751,7 +752,7 @@ int part_get_info_by_dev_and_name_or_num(const char *dev_iface,
* directly.
*/
ret = blk_get_device_part_str(dev_iface, dev_part_str,
dev_desc, part_info, 1);
dev_desc, part_info, allow_whole_dev);
if (ret < 0)
printf("Couldn't find partition %s %s\n",
dev_iface, dev_part_str);

6
include/part.h
View File

@ -227,12 +227,16 @@ int part_get_info_by_name(struct blk_desc *dev_desc,
* @param[in] dev_part_str Input partition description, like "0#misc" or "0:1"
* @param[out] dev_desc Place to store the device description pointer
* @param[out] part_info Place to store the partition information
* @param[in] allow_whole_dev true to allow the user to select partition 0
* (which means the whole device), false to require a valid
* partition number >= 1
* @return 0 on success, or a negative on error
*/
int part_get_info_by_dev_and_name_or_num(const char *dev_iface,
const char *dev_part_str,
struct blk_desc **dev_desc,
struct disk_partition *part_info);
struct disk_partition *part_info,
int allow_whole_dev);
/**
* part_set_generic_name() - create generic partition like hda1 or sdb2