174  *              exception on bad checksum.
186     UINT8                   Checksum;  in AcpiUtVerifyChecksum()  local
191      * They are the odd tables, have no standard ACPI header and no checksum  in AcpiUtVerifyChecksum()
199     /* Compute the checksum on the table */  in AcpiUtVerifyChecksum()
202     Checksum = AcpiUtGenerateChecksum (ACPI_CAST_PTR (UINT8, Table), Length, Table->Checksum);  in AcpiUtVerifyChecksum()
204     /* Computed checksum matches table? */  in AcpiUtVerifyChecksum()
206     if (Checksum != Table->Checksum)  in AcpiUtVerifyChecksum()
209             "Incorrect checksum in table [%4.4s] - 0x%2.2X, "  in AcpiUtVerifyChecksum()
211             Table->Signature, Table->Checksum,  in AcpiUtVerifyChecksum()
212             Table->Checksum - Checksum));  in AcpiUtVerifyChecksum()
233  *              returns an exception on bad checksum.
242     UINT8                   Checksum;  in AcpiUtVerifyCdatChecksum()  local
245     /* Compute the checksum on the table */  in AcpiUtVerifyCdatChecksum()
247     Checksum = AcpiUtGenerateChecksum (ACPI_CAST_PTR (UINT8, CdatTable),  in AcpiUtVerifyCdatChecksum()
248                     CdatTable->Length, CdatTable->Checksum);  in AcpiUtVerifyCdatChecksum()
250     /* Computed checksum matches table? */  in AcpiUtVerifyCdatChecksum()
252     if (Checksum != CdatTable->Checksum)  in AcpiUtVerifyCdatChecksum()
255             "Incorrect checksum in table [%4.4s] - 0x%2.2X, "  in AcpiUtVerifyCdatChecksum()
257             AcpiGbl_CDAT, CdatTable->Checksum, Checksum));  in AcpiUtVerifyCdatChecksum()
264     CdatTable->Checksum = Checksum;  in AcpiUtVerifyCdatChecksum()
275  *              OriginalChecksum    - Value of the checksum field
277  * RETURN:      8 bit checksum of buffer
279  * DESCRIPTION: Computes an 8 bit checksum of the table.
289     UINT8                   Checksum;  in AcpiUtGenerateChecksum()  local
294     Checksum = AcpiUtChecksum ((UINT8 *) Table, Length);  in AcpiUtGenerateChecksum()
296     /* Subtract off the existing checksum value in the table */  in AcpiUtGenerateChecksum()
298     Checksum = (UINT8) (Checksum - OriginalChecksum);  in AcpiUtGenerateChecksum()
300     /* Compute and return the final checksum */  in AcpiUtGenerateChecksum()
302     Checksum = (UINT8) (0 - Checksum);  in AcpiUtGenerateChecksum()
303     return (Checksum);  in AcpiUtGenerateChecksum()
314  * RETURN:      Checksum (UINT8)
316  * DESCRIPTION: Calculates circular checksum of memory region.