From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753284AbbJTUbo (ORCPT ); Tue, 20 Oct 2015 16:31:44 -0400 Received: from mail-lf0-f54.google.com ([209.85.215.54]:36352 "EHLO mail-lf0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753125AbbJTUak (ORCPT ); Tue, 20 Oct 2015 16:30:40 -0400 From: Rasmus Villemoes To: Andrew Morton Cc: Rasmus Villemoes , Maurizio Lombardi , Kees Cook , Tejun Heo , linux-kernel@vger.kernel.org Subject: [PATCH 11/13] lib/test_printf.c: add test for large bitmaps Date: Tue, 20 Oct 2015 22:30:11 +0200 Message-Id: <1445373013-20207-12-git-send-email-linux@rasmusvillemoes.dk> X-Mailer: git-send-email 2.6.1 In-Reply-To: <1445373013-20207-1-git-send-email-linux@rasmusvillemoes.dk> References: <1445373013-20207-1-git-send-email-linux@rasmusvillemoes.dk> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 Cc: Kees Cook Cc: Tejun Heo Signed-off-by: Rasmus Villemoes --- lib/test_printf.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/lib/test_printf.c b/lib/test_printf.c index 8fca007d9bcd..19fa411dba78 100644 --- a/lib/test_printf.c +++ b/lib/test_printf.c @@ -12,6 +12,7 @@ #include #include +#include #include #include @@ -312,6 +313,20 @@ 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); @@ -330,6 +345,8 @@ 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