ACPICA: Ignore ACPI table signature for Load() operator

[linux-2.6-omap-h63xx.git] / drivers / acpi / tables / tbinstal.c

diff --git a/drivers/acpi/tables/tbinstal.c b/drivers/acpi/tables/tbinstal.c
index 402f93e1ff2079eb5f49dde56d690513560b1c81..5336ce88f89f74b47790be39ceadabd8a5b345b3 100644 (file)
--- a/drivers/acpi/tables/tbinstal.c
+++ b/drivers/acpi/tables/tbinstal.c
@@ -123,24 +123,13 @@ acpi_tb_add_table(struct acpi_table_desc *table_desc,
                }
        }
 
-       /* The table must be either an SSDT or a PSDT or an OEMx */
-
-       if (!ACPI_COMPARE_NAME(table_desc->pointer->signature, ACPI_SIG_PSDT)&&
-           !ACPI_COMPARE_NAME(table_desc->pointer->signature, ACPI_SIG_SSDT)&&
-           strncmp(table_desc->pointer->signature, "OEM", 3)) {
-               /* Check for a printable name */
-               if (acpi_ut_valid_acpi_name(
-                       *(u32 *) table_desc->pointer->signature)) {
-                       ACPI_ERROR((AE_INFO, "Table has invalid signature "
-                                       "[%4.4s], must be SSDT or PSDT",
-                                   table_desc->pointer->signature));
-               } else {
-                       ACPI_ERROR((AE_INFO, "Table has invalid signature "
-                                       "(0x%8.8X), must be SSDT or PSDT",
-                                   *(u32 *) table_desc->pointer->signature));
-               }
-               return_ACPI_STATUS(AE_BAD_SIGNATURE);
-       }
+       /*
+        * Originally, we checked the table signature for "SSDT" or "PSDT" here.
+        * Next, we added support for OEMx tables, signature "OEM".
+        * Valid tables were encountered with a null signature, so we've just
+        * given up on validating the signature, since it seems to be a waste
+        * of code. The original code was removed (05/2008).
+        */
 
        (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);