int image_add_section(struct image *image, uint32_t base, uint32_t size,
int flags, uint8_t const *data);
-int image_calculate_checksum(uint8_t *buffer, uint32_t nbytes,
+int image_calculate_checksum(const uint8_t *buffer, uint32_t nbytes,
uint32_t *checksum);
#define ERROR_IMAGE_FORMAT_ERROR (-1400)