11 static struct acpi_rsdp *acpi_valid_rsdp(struct acpi_rsdp *rsdp)  in acpi_valid_rsdp()  argument
13 	if (strncmp((char *)rsdp, RSDP_SIG, sizeof(RSDP_SIG) - 1) != 0)  in acpi_valid_rsdp()
16 	debug("Looking on %p for valid checksum\n", rsdp);  in acpi_valid_rsdp()
18 	if (table_compute_checksum((void *)rsdp, 20) != 0)  in acpi_valid_rsdp()
22 	if ((rsdp->revision > 1) &&  in acpi_valid_rsdp()
23 	    (table_compute_checksum((void *)rsdp, rsdp->length) != 0))  in acpi_valid_rsdp()
27 	return rsdp;  in acpi_valid_rsdp()
33 	struct acpi_rsdp *rsdp = NULL;  in acpi_find_fadt()  local
40 		rsdp = acpi_valid_rsdp((struct acpi_rsdp *)p);  in acpi_find_fadt()
41 		if (rsdp)  in acpi_find_fadt()
45 	if (!rsdp)  in acpi_find_fadt()
48 	debug("RSDP found at %p\n", rsdp);  in acpi_find_fadt()
49 	rsdt = (struct acpi_rsdt *)(uintptr_t)rsdp->rsdt_address;  in acpi_find_fadt()