x86: print out if acpi want physical flat of all

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/kernel/genapic_flat_64.c b/arch/x86/kernel/genapic_flat_64.c
index 9eca5ba7a6b1dcfe543fc644ab049e40b9139a9f..2ec2de8d8c46525a13d91a731366d5cfbce4b37b 100644 (file)
--- a/arch/x86/kernel/genapic_flat_64.c
+++ b/arch/x86/kernel/genapic_flat_64.c
@@ -179,8 +179,10 @@ static int __init physflat_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
         * is an example).
         */
        if (acpi_gbl_FADT.header.revision > FADT2_REVISION_ID &&
-               (acpi_gbl_FADT.flags & ACPI_FADT_APIC_PHYSICAL))
+               (acpi_gbl_FADT.flags & ACPI_FADT_APIC_PHYSICAL)) {
+               printk(KERN_DEBUG "system APIC only can use physical flat");
                return 1;
+       }
 #endif
 
        return 0;