Do not need to scan disk every time when we get part info
by name.
Signed-off-by: Kever Yang <kever.y...@rock-chips.com>
---
Changes in v2:
- rebase to latest version
- add error handle for partition tbale not exist
disk/part.c | 35 ++++++++++++++++-------------------
1 file changed, 16 insertions(+), 19 deletions(-)
diff --git a/disk/part.c b/disk/part.c
index df0d50d..b80a4b1 100644
--- a/disk/part.c
+++ b/disk/part.c
@@ -644,28 +644,25 @@ cleanup:
int part_get_info_by_name_type(struct blk_desc *dev_desc, const char *name,
disk_partition_t *info, int part_type)
{
- struct part_driver *first_drv =
- ll_entry_start(struct part_driver, part_driver);
- const int n_drvs = ll_entry_count(struct part_driver, part_driver);
struct part_driver *part_drv;
-
- for (part_drv = first_drv; part_drv != first_drv + n_drvs; part_drv++) {
- int ret;
- int i;
- for (i = 1; i < part_drv->max_entries; i++) {
- if (part_type >= 0 && part_type != part_drv->part_type)
- break;
- ret = part_drv->get_info(dev_desc, i, info);
- if (ret != 0) {
- /* no more entries in table */
- break;
- }
- if (strcmp(name, (const char *)info->name) == 0) {
- /* matched */
- return i;
- }
+ int ret;
+ int i;
+
+ part_drv = part_driver_lookup_type(dev_desc);
+ if (!part_drv)
+ return -1;
+ for (i = 1; i < part_drv->max_entries; i++) {
+ ret = part_drv->get_info(dev_desc, i, info);
+ if (ret != 0) {
+ /* no more entries in table */
+ break;
+ }
+ if (strcmp(name, (const char *)info->name) == 0) {
+ /* matched */
+ return i;
}
}
+
return -1;
}
--
1.9.1
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