From patchwork Fri Jan 31 06:11:01 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Morton X-Patchwork-Id: 11359111 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B286313A4 for ; Fri, 31 Jan 2020 06:11:04 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 75F432082E for ; Fri, 31 Jan 2020 06:11:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="t303P3Gf" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 75F432082E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id B8B1D6B04BE; Fri, 31 Jan 2020 01:11:03 -0500 (EST) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id B3BF56B04BF; Fri, 31 Jan 2020 01:11:03 -0500 (EST) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id A2B366B04C0; Fri, 31 Jan 2020 01:11:03 -0500 (EST) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0041.hostedemail.com [216.40.44.41]) by kanga.kvack.org (Postfix) with ESMTP id 8E9F06B04BE for ; Fri, 31 Jan 2020 01:11:03 -0500 (EST) Received: from smtpin18.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 32119180AD802 for ; Fri, 31 Jan 2020 06:11:03 +0000 (UTC) X-FDA: 76436906406.18.glue30_924d54f6662f X-Spam-Summary: 2,0,0,7a1a1ea32e0d3a7a,d41d8cd98f00b204,akpm@linux-foundation.org,:akpm@linux-foundation.org:andriy.shevchenko@linux.intel.com::linux@rasmusvillemoes.dk:linux@roeck-us.net:mm-commits@vger.kernel.org:stable@vger.kernel.org:torvalds@linux-foundation.org:yury.norov@gmail.com,RULES_HIT:41:355:379:800:960:967:973:988:989:1260:1263:1345:1359:1381:1431:1437:1534:1542:1711:1730:1747:1777:1792:2393:2525:2559:2563:2682:2685:2859:2902:2933:2937:2939:2942:2945:2947:2951:2954:3022:3138:3139:3140:3141:3142:3352:3865:3866:3870:3871:3934:3936:3938:3941:3944:3947:3950:3953:3956:3959:4321:5007:6261:6653:7514:7576:8599:8603:9025:9545:10004:10913:11026:11473:11658:11914:12043:12048:12297:12517:12519:12555:12679:12783:12986:13221:13229:13870:14181:14721:14849:21080:21451:21627:21939:30054,0,RBL:error,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,MSF:not bulk,SPF:fp,MSBL:0,DNSBL:neutral,Custom_rules:0:0:0,LFtime:25,LUA_SUMMARY:none X-HE-Tag: glue30_924d54f6662f X-Filterd-Recvd-Size: 3545 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf29.hostedemail.com (Postfix) with ESMTP for ; Fri, 31 Jan 2020 06:11:02 +0000 (UTC) Received: from localhost.localdomain (c-73-231-172-41.hsd1.ca.comcast.net [73.231.172.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id A863420663; Fri, 31 Jan 2020 06:11:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1580451062; bh=gZnMHpmgJdAp9IfWwMGqKfeNJeEIeoMs4HZnqRiR7sQ=; h=Date:From:To:Subject:In-Reply-To:From; b=t303P3GfkSCMcKA/Ebj+2O/N9FrED5ilnVBRAFC0BzBrvO0kuILkj+bfKwfYdS9DB +Ga1cvwE8YqPYiKD/Q5+rnyvghZmG863Hoo+t9IfQxbBwbmgEojuMLQZXzQXajq/aZ 9Q1YbWvVyBqnHfEk40MNdqTsO40hAsQzGwXpf+gg= Date: Thu, 30 Jan 2020 22:11:01 -0800 From: Andrew Morton To: akpm@linux-foundation.org, andriy.shevchenko@linux.intel.com, linux-mm@kvack.org, linux@rasmusvillemoes.dk, linux@roeck-us.net, mm-commits@vger.kernel.org, stable@vger.kernel.org, torvalds@linux-foundation.org, yury.norov@gmail.com Subject: [patch 001/118] lib/test_bitmap: correct test data offsets for 32-bit Message-ID: <20200131061101.ZKr-lpeii%akpm@linux-foundation.org> In-Reply-To: <20200130221021.5f0211c56346d5485af07923@linux-foundation.org> User-Agent: s-nail v14.8.16 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Andy Shevchenko Subject: lib/test_bitmap: correct test data offsets for 32-bit On 32-bit platform the size of long is only 32 bits which makes wrong offset in the array of 64 bit size. Calculate offset based on BITS_PER_LONG. Link: http://lkml.kernel.org/r/20200109103601.45929-1-andriy.shevchenko@linux.intel.com Fixes: 30544ed5de43 ("lib/bitmap: introduce bitmap_replace() helper") Signed-off-by: Andy Shevchenko Reported-by: Guenter Roeck Cc: Rasmus Villemoes Cc: Yury Norov Cc: Signed-off-by: Andrew Morton --- lib/test_bitmap.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) --- a/lib/test_bitmap.c~lib-test_bitmap-correct-test-data-offsets-for-32-bit +++ a/lib/test_bitmap.c @@ -275,22 +275,23 @@ static void __init test_copy(void) static void __init test_replace(void) { unsigned int nbits = 64; + unsigned int nlongs = DIV_ROUND_UP(nbits, BITS_PER_LONG); DECLARE_BITMAP(bmap, 1024); bitmap_zero(bmap, 1024); - bitmap_replace(bmap, &exp2[0], &exp2[1], exp2_to_exp3_mask, nbits); + bitmap_replace(bmap, &exp2[0 * nlongs], &exp2[1 * nlongs], exp2_to_exp3_mask, nbits); expect_eq_bitmap(bmap, exp3_0_1, nbits); bitmap_zero(bmap, 1024); - bitmap_replace(bmap, &exp2[1], &exp2[0], exp2_to_exp3_mask, nbits); + bitmap_replace(bmap, &exp2[1 * nlongs], &exp2[0 * nlongs], exp2_to_exp3_mask, nbits); expect_eq_bitmap(bmap, exp3_1_0, nbits); bitmap_fill(bmap, 1024); - bitmap_replace(bmap, &exp2[0], &exp2[1], exp2_to_exp3_mask, nbits); + bitmap_replace(bmap, &exp2[0 * nlongs], &exp2[1 * nlongs], exp2_to_exp3_mask, nbits); expect_eq_bitmap(bmap, exp3_0_1, nbits); bitmap_fill(bmap, 1024); - bitmap_replace(bmap, &exp2[1], &exp2[0], exp2_to_exp3_mask, nbits); + bitmap_replace(bmap, &exp2[1 * nlongs], &exp2[0 * nlongs], exp2_to_exp3_mask, nbits); expect_eq_bitmap(bmap, exp3_1_0, nbits); }