EFX_SNICIMAGE_HEADER_CRC_OFST
expected_crc = get_unaligned_le32(header + EFX_SNICIMAGE_HEADER_CRC_OFST);
crc = crc32_le(~0, header, EFX_SNICIMAGE_HEADER_CRC_OFST);
header + EFX_SNICIMAGE_HEADER_CRC_OFST +
header_len + payload_size - EFX_SNICIMAGE_HEADER_CRC_OFST -