compute_checksum
if (compute_checksum((u8 *)rsdp, ACPI_RSDP_CHECKSUM_LENGTH))
(compute_checksum((u8 *)rsdp, ACPI_RSDP_XCHECKSUM_LENGTH)))
pfd = bpf_program__fd(skel->progs.compute_checksum);
int compute_checksum(void *ctx)