59 static bool read_u32(u8 **p, u8 *top, u32 *result)  in read_u32()  argument
61 	if (*p + sizeof(u32) > top)  in read_u32()
69 static bool read_u8(u8 **p, u8 *top, u8 *result)  in read_u8()  argument
71 	if (*p + sizeof(u8) > top)  in read_u8()
79 static bool read_mem_range(u8 **p, u8 *top, struct mem_range *range)  in read_mem_range()  argument
83 	if (!read_u32(p, top, &len) || *p + len > top)  in read_mem_range()
96 	u8 *top = signature.data + signature.len;  in incfs_parse_signature()  local
102 	if (!read_u32(&p, top, &si->version) ||  in incfs_parse_signature()
106 	if (!read_u32(&p, top, &hash_section_size) ||  in incfs_parse_signature()
107 	    p + hash_section_size > top)  in incfs_parse_signature()
109 	top = p + hash_section_size;  in incfs_parse_signature()
111 	if (!read_u32(&p, top, &si->hash_algorithm) ||  in incfs_parse_signature()
115 	if (!read_u8(&p, top, &si->log2_blocksize) || si->log2_blocksize != 12)  in incfs_parse_signature()
118 	if (!read_mem_range(&p, top, &si->salt))  in incfs_parse_signature()
121 	if (!read_mem_range(&p, top, &si->root_hash))  in incfs_parse_signature()
124 	if (p != top)  in incfs_parse_signature()