x86: clean up apic->acpi_madt_oem_check methods

Impact: refactor code

x86 subarchitectures each defined a "acpi_madt_oem_check()" method,
which could be an inline function, or an extern, or a static function,
and which was also the name of a genapic field.

Untangle this namespace spaghetti by setting ->acpi_madt_oem_check()
to NULL on those subarchitectures that have no detection quirks,
and rename the other ones (summit, es7000) that do.

Also change default_acpi_madt_oem_check() to handle NULL entries,
and clean its control flow up as well.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 2 insertions, 1 deletions

diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 4cb5964f1499..314fe0dddef4 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -239,7 +239,8 @@ static int __init acpi_parse_madt(struct acpi_table_header *table)
                        madt->address);
         }
 
-        acpi_madt_oem_check(madt->header.oem_id, madt->header.oem_table_id);
+        default_acpi_madt_oem_check(madt->header.oem_id,
+                                    madt->header.oem_table_id);
 
         return 0;
 }