MN10300: Add built-in testing for misalignment handler

Add configurable built-in testing for the MN10300 misalignment handler.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 9 insertions, 0 deletions

diff --git a/arch/mn10300/Kconfig.debug b/arch/mn10300/Kconfig.debug
index 524e33819f32..ff80e86b9bd2 100644
--- a/arch/mn10300/Kconfig.debug
+++ b/arch/mn10300/Kconfig.debug
@@ -15,6 +15,15 @@ config DEBUG_DECOMPRESS_KERNEL
           decompressing Linux seeing "Uncompressing Linux... " and
           "Ok, booting the kernel.\n" on console.
 
+config TEST_MISALIGNMENT_HANDLER
+        bool "Run tests on the misalignment handler"
+        depends on DEBUG_KERNEL
+        default n
+        help
+          If you say Y here the kernel will execute a list of misaligned memory
+          accesses to make sure the misalignment handler deals them with
+          correctly.  If it does not, the kernel will throw a BUG.
+
 config KPROBES
         bool "Kprobes"
         depends on DEBUG_KERNEL