111 static int spl_read_ab_metadata(struct blk_desc *dev_desc, AvbABData *ab_data,  in spl_read_ab_metadata()  argument
118 	if (!dev_desc || !partition || !ab_data)  in spl_read_ab_metadata()
121 	if (part_get_info_by_name(dev_desc, partition, &part_info) < 0)  in spl_read_ab_metadata()
124 	ret = blk_dread(dev_desc, part_info.start + AB_METADATA_OFFSET, 1,  in spl_read_ab_metadata()
137 static int spl_write_ab_metadata(struct blk_desc *dev_desc, AvbABData *ab_data,  in spl_write_ab_metadata()  argument
144 	if (!dev_desc || !partition || !ab_data)  in spl_write_ab_metadata()
151 	if (part_get_info_by_name(dev_desc, partition, &part_info) < 0)  in spl_write_ab_metadata()
154 	ret = blk_dwrite(dev_desc, part_info.start + AB_METADATA_OFFSET, 1,  in spl_write_ab_metadata()
162 static int spl_ab_data_write(struct blk_desc *dev_desc, AvbABData *ab_data,  in spl_ab_data_write()  argument
169 	return spl_write_ab_metadata(dev_desc, &serialized, partition);  in spl_ab_data_write()
172 static int spl_ab_data_read(struct blk_desc *dev_desc, AvbABData *ab_data,  in spl_ab_data_read()  argument
178 	ret = spl_read_ab_metadata(dev_desc, &serialized, partition);  in spl_ab_data_read()
186 		spl_ab_data_write(dev_desc, ab_data, partition);  in spl_ab_data_read()
203 int spl_get_current_slot(struct blk_desc *dev_desc, char *partition, char *slot)  in spl_get_current_slot()  argument
210 	ret = spl_ab_data_read(dev_desc, &ab_data, partition);  in spl_get_current_slot()
254 int spl_ab_append_part_slot(struct blk_desc *dev_desc,  in spl_ab_append_part_slot()  argument
265 	if (spl_get_current_slot(dev_desc, "misc", slot_suffix)) {  in spl_ab_append_part_slot()
277 static int spl_save_metadata_if_changed(struct blk_desc *dev_desc,  in spl_save_metadata_if_changed()  argument
282 		return spl_ab_data_write(dev_desc, ab_data, "misc");  in spl_save_metadata_if_changed()
288 int spl_ab_decrease_tries(struct blk_desc *dev_desc)  in spl_ab_decrease_tries()  argument
295 	ret = spl_get_current_slot(dev_desc, "misc", slot_suffix);  in spl_ab_decrease_tries()
306 	ret = spl_ab_data_read(dev_desc, &ab_data, "misc");  in spl_ab_decrease_tries()
317 	ret = spl_save_metadata_if_changed(dev_desc, &ab_data, &ab_data_orig);  in spl_ab_decrease_tries()
327 int spl_ab_decrease_reset(struct blk_desc *dev_desc)  in spl_ab_decrease_reset()  argument
332 	ret = spl_ab_data_read(dev_desc, &ab_data, "misc");  in spl_ab_decrease_reset()
344 	ret = spl_ab_decrease_tries(dev_desc);  in spl_ab_decrease_reset()