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-rw-r--r--lib/test_bitmap.c32
1 files changed, 32 insertions, 0 deletions
diff --git a/lib/test_bitmap.c b/lib/test_bitmap.c
index e2cbd43d193c..252d3bddbe7d 100644
--- a/lib/test_bitmap.c
+++ b/lib/test_bitmap.c
@@ -333,10 +333,42 @@ static void __init test_bitmap_u32_array_conversions(void)
}
}
+#define __bitmap_set(a, b, c) bitmap_set(a, b, c)
+#define __bitmap_clear(a, b, c) bitmap_clear(a, b, c)
+
+static void noinline __init test_mem_optimisations(void)
+{
+ DECLARE_BITMAP(bmap1, 1024);
+ DECLARE_BITMAP(bmap2, 1024);
+ unsigned int start, nbits;
+
+ for (start = 0; start < 1024; start += 8) {
+ memset(bmap1, 0x5a, sizeof(bmap1));
+ memset(bmap2, 0x5a, sizeof(bmap2));
+ for (nbits = 0; nbits < 1024 - start; nbits += 8) {
+ bitmap_set(bmap1, start, nbits);
+ __bitmap_set(bmap2, start, nbits);
+ if (!bitmap_equal(bmap1, bmap2, 1024))
+ printk("set not equal %d %d\n", start, nbits);
+ if (!__bitmap_equal(bmap1, bmap2, 1024))
+ printk("set not __equal %d %d\n", start, nbits);
+
+ bitmap_clear(bmap1, start, nbits);
+ __bitmap_clear(bmap2, start, nbits);
+ if (!bitmap_equal(bmap1, bmap2, 1024))
+ printk("clear not equal %d %d\n", start, nbits);
+ if (!__bitmap_equal(bmap1, bmap2, 1024))
+ printk("clear not __equal %d %d\n", start,
+ nbits);
+ }
+ }
+}
+
static int __init test_bitmap_init(void)
{
test_zero_fill_copy();
test_bitmap_u32_array_conversions();
+ test_mem_optimisations();
if (failed_tests == 0)
pr_info("all %u tests passed\n", total_tests);