Following "lib/vsprintf.c: expand field_width to 24 bits", let's add a
test to see that we now actually support bitmaps with 65536 bits.
Cc: Maurizio Lombardi <mlomb...@redhat.com>
Cc: Tejun Heo <t...@kernel.org>
Acked-by: Kees Cook <keesc...@chromium.org>
Signed-off-by: Rasmus Villemoes <li...@rasmusvillemoes.dk>
---
lib/test_printf.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/lib/test_printf.c b/lib/test_printf.c
index 3e21170d327d..60740c10c3e8 100644
--- a/lib/test_printf.c
+++ b/lib/test_printf.c
@@ -12,6 +12,7 @@
#include <linux/slab.h>
#include <linux/string.h>
+#include <linux/bitmap.h>
#include <linux/socket.h>
#include <linux/in.h>
@@ -341,6 +342,20 @@ struct_clk(void)
}
static void __init
+large_bitmap(void)
+{
+ const int nbits = 1 << 16;
+ unsigned long *bits = kcalloc(BITS_TO_LONGS(nbits), sizeof(long),
GFP_KERNEL);
+ if (!bits)
+ return;
+
+ bitmap_set(bits, 1, 20);
+ bitmap_set(bits, 60000, 15);
+ test("1-20,60000-60014", "%*pbl", nbits, bits);
+ kfree(bits);
+}
+
+static void __init
bitmap(void)
{
DECLARE_BITMAP(bits, 20);
@@ -359,6 +374,8 @@ bitmap(void)
bitmap_fill(bits, 20);
test("fffff|fffff", "%20pb|%*pb", bits, 20, bits);
test("0-19|0-19", "%20pbl|%*pbl", bits, 20, bits);
+
+ large_bitmap();
}
static void __init
--
2.6.1
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