lib/Kconfig.debug: add list_sort debugging switch
While hunting a non-existing bug in 'list_sort()', I've improved the
'list_sort_test()' function which tests the 'list_sort()' library call.
Although at the end I found a bug in my code, but not in 'list_sort()', I
think my clean-ups and improvements are worth merging because they make
the test function better.
This patch:
Make the self-tests selectable via Kconfig rather than by manual enabling
of DEBUG_LIST_SORT.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Cc: Don Mullis <don.mullis@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 0d5c762..95bda87 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -748,6 +748,15 @@
If unsure, say N.
+config TEST_LIST_SORT
+ bool "Linked list sorting test"
+ depends on DEBUG_KERNEL
+ help
+ Enable this to turn on 'list_sort()' function test. This test is
+ executed only once during system boot, so affects only boot time.
+
+ If unsure, say N.
+
config DEBUG_SG
bool "Debug SG table operations"
depends on DEBUG_KERNEL
diff --git a/lib/list_sort.c b/lib/list_sort.c
index a7616fa..8277940 100644
--- a/lib/list_sort.c
+++ b/lib/list_sort.c
@@ -141,7 +141,7 @@
}
EXPORT_SYMBOL(list_sort);
-#ifdef DEBUG_LIST_SORT
+#ifdef CONFIG_TEST_LIST_SORT
struct debug_el {
struct list_head l_h;
int value;
@@ -214,4 +214,4 @@
return 0;
}
module_init(list_sort_test);
-#endif
+#endif /* CONFIG_TEST_LIST_SORT */
