powerpc/msi: Mark the MSI bitmap selftest code as __init

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

arch/powerpc/sysdev/msi_bitmap.c

@@ -141,7 +141,7 @@ void msi_bitmap_free(struct msi_bitmap *bmp)
 #define check(x)	\
 	if (!(x)) printk("msi_bitmap: test failed at line %d\n", __LINE__);
 
-void test_basics(void)
+void __init test_basics(void)
 {
 	struct msi_bitmap bmp;
 	int i, size = 512;
@@ -186,7 +186,7 @@ void test_basics(void)
 	kfree(bmp.bitmap);
 }
 
-void test_of_node(void)
+void __init test_of_node(void)
 {
 	u32 prop_data[] = { 10, 10, 25, 3, 40, 1, 100, 100, 200, 20 };
 	const char *expected_str = "0-9,20-24,28-39,41-99,220-255";
@@ -234,7 +234,7 @@ void test_of_node(void)
 	kfree(bmp.bitmap);
 }
 
-int msi_bitmap_selftest(void)
+int __init msi_bitmap_selftest(void)
 {
 	printk(KERN_DEBUG "Running MSI bitmap self-tests ...\n");