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disk: part: use common api to lookup part driver 

Do not need to scan disk every time when we get part info
by name.

Change-Id: Id79a3a9065731815567055329a2f7f80b3c8c9d4
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
This commit is contained in:
Kever Yang 2017-12-14 12:22:58 +08:00
parent 067b22ddca
commit 5ecf0ee53b
1 changed files with 13 additions and 16 deletions
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9
disk/part.c
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@ -638,14 +638,11 @@ cleanup:
int part_get_info_by_name(struct blk_desc *dev_desc, const char *name, int part_get_info_by_name(struct blk_desc *dev_desc, const char *name,
disk_partition_t *info) disk_partition_t *info)
{ {
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; struct part_driver *part_drv;
for (part_drv = first_drv; part_drv != first_drv + n_drvs; part_drv++) {
int ret; int ret;
int i; int i;
part_drv = part_driver_lookup_type(dev_desc);
for (i = 1; i < part_drv->max_entries; i++) { for (i = 1; i < part_drv->max_entries; i++) {
ret = part_drv->get_info(dev_desc, i, info); ret = part_drv->get_info(dev_desc, i, info);
if (ret != 0) { if (ret != 0) {
@ -657,7 +654,7 @@ int part_get_info_by_name(struct blk_desc *dev_desc, const char *name,
return i; return i;
} }
} }
}
return -1; return -1;
} }