[acpi] Eliminate redundant acpi_find_rsdt() in acpi_sx()
The result from acpi_find_rsdt() is used only for the debug message.
Simplify the debug message and remove the otherwise redundant call to
acpi_find_rsdt().
Signed-off-by: Michael Brown <mcb30@ipxe.org>
diff --git a/src/core/acpi.c b/src/core/acpi.c
index 19b7082..7551173 100644
--- a/src/core/acpi.c
+++ b/src/core/acpi.c
@@ -259,20 +259,12 @@
*/
int acpi_sx ( uint32_t signature ) {
struct acpi_fadt fadtab;
- userptr_t rsdt;
userptr_t fadt;
userptr_t dsdt;
userptr_t ssdt;
unsigned int i;
int sx;
- /* Locate RSDT */
- rsdt = acpi_find_rsdt();
- if ( ! rsdt ) {
- DBG ( "RSDT not found\n" );
- return -ENOENT;
- }
-
/* Try DSDT first */
fadt = acpi_find ( FADT_SIGNATURE, 0 );
if ( fadt ) {
@@ -291,8 +283,8 @@
return sx;
}
- DBGC ( colour, "RSDT %#08lx could not find \\_Sx \"%s\"\n",
- user_to_phys ( rsdt, 0 ), acpi_name ( signature ) );
+ DBGC ( colour, "ACPI could not find \\_Sx \"%s\"\n",
+ acpi_name ( signature ) );
return -ENOENT;
}
