Merge branches 'tracing/ftrace' and 'linus' into tracing/core

1 files changed, 11 insertions, 0 deletions

diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 5b2a2379a439..294a3b13ecac 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -641,6 +641,17 @@ config DMAR
           and include PCI device scope covered by these DMA
           remapping devices.
 
+config DMAR_DEFAULT_ON
+        def_bool y
+        prompt "Enable DMA Remapping Devices by default"
+        depends on DMAR
+        help
+          Selecting this option will enable a DMAR device at boot time if
+          one is found. If this option is not selected, DMAR support can
+          be enabled by passing intel_iommu=on to the kernel. It is
+          recommended you say N here while the DMAR code remains
+          experimental.
+
 endmenu
 
 endif