kemleak-test: build as module only

mm/kmemleak-test.c is used to provide an example of how kmemleak
tool works.

Memory is leaked at module unload-time, so building the test
in kernel (Y) makes the leaks impossible and the test useless.

Qualify DEBUG_KMEMLEAK_TEST config symbol with "depends on m",
to restrict module-only building.

Signed-off-by: Daniel Baluta <dbaluta@ixiacom.com>
Acked-by: Pekka Enberg <penberg@kernel.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 4 deletions

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index df9234c5f9d1..c768bcdda1b7 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -434,11 +434,9 @@ config DEBUG_KMEMLEAK_EARLY_LOG_SIZE
 
 config DEBUG_KMEMLEAK_TEST
         tristate "Simple test for the kernel memory leak detector"
-        depends on DEBUG_KMEMLEAK
+        depends on DEBUG_KMEMLEAK && m
         help
-          Say Y or M here to build a test for the kernel memory leak
-          detector. This option enables a module that explicitly leaks
-          memory.
+          This option enables a module that explicitly leaks memory.
 
           If unsure, say N.