1 // SPDX-License-Identifier: GPL-2.0
9 static int validate_of_partition(struct device_node *np, int slot)  in validate_of_partition()  argument
11 	u64 offset, size;  in validate_of_partition()  local
18 	/* Make sure reg len match the expected addr and size cells */  in validate_of_partition()
20 		return -EINVAL;  in validate_of_partition()
25 		return -EINVAL;  in validate_of_partition()
27 	/* Validate size conversion from bytes to sectors */  in validate_of_partition()
28 	size = of_read_number(reg + a_cells, s_cells);  in validate_of_partition()
29 	if (!size || size % SECTOR_SIZE)  in validate_of_partition()
30 		return -EINVAL;  in validate_of_partition()
35 static void add_of_partition(struct parsed_partitions *state, int slot,  in add_of_partition()  argument
39 	char tmp[sizeof(info->volname) + 4];  in add_of_partition()
47 	/* Convert bytes to sector size */  in add_of_partition()
49 	u64 size = of_read_number(reg + a_cells, s_cells) / SECTOR_SIZE;  in add_of_partition()  local
51 	put_partition(state, slot, offset, size);  in add_of_partition()
53 	if (of_property_read_bool(np, "read-only"))  in add_of_partition()
54 		state->parts[slot].flags |= ADDPART_FLAG_READONLY;  in add_of_partition()
60 	info = &state->parts[slot].info;  in add_of_partition()
64 	strscpy(info->volname, partname, sizeof(info->volname));  in add_of_partition()
66 	snprintf(tmp, sizeof(tmp), "(%s)", info->volname);  in add_of_partition()
67 	strlcat(state->pp_buf, tmp, PAGE_SIZE);  in add_of_partition()
72 	struct device *ddev = disk_to_dev(state->disk);  in of_partition()
74 	int slot;  in of_partition()  local
76 	struct device_node *partitions_np = of_node_get(ddev->of_node);  in of_partition()
79 	    !of_device_is_compatible(partitions_np, "fixed-partitions"))  in of_partition()
82 	slot = 1;  in of_partition()
83 	/* Validate parition offset and size */  in of_partition()
85 		if (validate_of_partition(np, slot)) {  in of_partition()
89 			return -1;  in of_partition()
92 		slot++;  in of_partition()
95 	slot = 1;  in of_partition()
97 		if (slot >= state->limit) {  in of_partition()
102 		add_of_partition(state, slot, np);  in of_partition()
104 		slot++;  in of_partition()
107 	strlcat(state->pp_buf, "\n", PAGE_SIZE);  in of_partition()