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efi_loader: simplify find_obj

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Use function efi_search_protocol().

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Heinrich Schuchardt 2017-11-26 14:05:16 +01:00 committed by Alexander Graf
parent 80286e8f81
commit 72292aba4f
1 changed files with 17 additions and 22 deletions
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39
lib/efi_loader/efi_device_path.c
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@ -128,32 +128,27 @@ static struct efi_object *find_obj(struct efi_device_path *dp, bool short_path,
struct efi_object *efiobj;
list_for_each_entry(efiobj, &efi_obj_list, link) {
int i;
struct efi_handler *handler;
struct efi_device_path *obj_dp;
efi_status_t ret;
for (i = 0; i < ARRAY_SIZE(efiobj->protocols); i++) {
struct efi_handler *handler = &efiobj->protocols[i];
struct efi_device_path *obj_dp;
ret = efi_search_protocol(efiobj->handle,
&efi_guid_device_path, &handler);
if (ret != EFI_SUCCESS)
continue;
obj_dp = handler->protocol_interface;
if (!handler->guid)
break;
if (guidcmp(handler->guid, &efi_guid_device_path))
continue;
obj_dp = handler->protocol_interface;
do {
if (efi_dp_match(dp, obj_dp) == 0) {
if (rem) {
*rem = ((void *)dp) +
efi_dp_size(obj_dp);
}
return efiobj;
do {
if (efi_dp_match(dp, obj_dp) == 0) {
if (rem) {
*rem = ((void *)dp) +
efi_dp_size(obj_dp);
}
return efiobj;
}
obj_dp = shorten_path(efi_dp_next(obj_dp));
} while (short_path && obj_dp);
}
obj_dp = shorten_path(efi_dp_next(obj_dp));
} while (short_path && obj_dp);
}
return NULL;