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Commit 857cca4d authored by Rasmus Villemoes's avatar Rasmus Villemoes Committed by Linus Torvalds
Browse files

lib/test_printf.c: add test for large bitmaps 



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.

Signed-off-by: default avatarRasmus Villemoes <linux@rasmusvillemoes.dk>
Acked-by: default avatarKees Cook <keescook@chromium.org>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Joe Perches <joe@perches.com>
Cc: Maurizio Lombardi <mlombard@redhat.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent b79a7db3

lib/test_printf.c

+17 −0
Original line number Diff line number Diff line
@@ -12,6 +12,7 @@ 
#include <linux/slab.h>

#include <linux/string.h>



#include <linux/bitmap.h>

#include <linux/socket.h>

#include <linux/in.h>
@@ -340,6 +341,20 @@ 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)

{
@@ -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