x64, x2apic/intr-remap: Fix the need for RMRR in the DMA-remapping detection

Presence of RMRR structures is not compulsory for enabling DMA-remapping.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Yong Y Wang <yong.y.wang@intel.com>
Cc: Yong Y Wang <yong.y.wang@intel.com>
Cc: akpm@linux-foundation.org
Cc: arjan@linux.intel.com
Cc: andi@firstfloor.org
Cc: ebiederm@xmission.com
Cc: jbarnes@virtuousgeek.org
Cc: steiner@sgi.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/drivers/pci/dmar.c b/drivers/pci/dmar.c
index 5c99f9973987fdd39b54b6fb5137b0823ea59e80..903f1701edfff498ccd78de3780ceceb13d77704 100644 (file)
--- a/drivers/pci/dmar.c
+++ b/drivers/pci/dmar.c
@@ -419,10 +419,8 @@ int __init dmar_table_init(void)
        }
 
 #ifdef CONFIG_DMAR
-       if (list_empty(&dmar_rmrr_units)) {
+       if (list_empty(&dmar_rmrr_units))
                printk(KERN_INFO PREFIX "No RMRR found\n");
-               return -ENODEV;
-       }
 #endif
 
        return 0;