From patchwork Mon Mar 25 06:23:03 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: William Breathitt Gray X-Patchwork-Id: 1063814 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-gpio-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="vNwjGWjx"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 44SPLd08Wpz9sSg for ; Mon, 25 Mar 2019 17:22:17 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729636AbfCYGWQ (ORCPT ); Mon, 25 Mar 2019 02:22:16 -0400 Received: from mail-pf1-f195.google.com ([209.85.210.195]:46243 "EHLO mail-pf1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729373AbfCYGWQ (ORCPT ); Mon, 25 Mar 2019 02:22:16 -0400 Received: by mail-pf1-f195.google.com with SMTP id 9so5611605pfj.13; Sun, 24 Mar 2019 23:22:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=voPjJIpaEIENDSX5D22rQL6GtMzeJ5e93HyvmN9lrck=; b=vNwjGWjxEhWt5QWVZT1aFeY5G/+y9WIguBjBa2SkkKwSXWEuCI07PAqcaqZb0sF25s buN8M1Jb2P6GxF6WJf1IkuNvhq9V02P/pJEjJiAnKoP64vdQvQvoHHtU8umEVTUnxKmH BL+pOi54Lt0LIr+mqRYTTXR4kYTwZpv6ZN+F3KD1voDmGVP4oik3vOy8+Gonu1PVujYd wv7nBAnjoI02zxKlqAaZtyI8iNbxixjEf5kl87+Un2p934VWkvLjB9vt2iNYnXCRnBYw WjkcyTFdyfp3zVsLCePywJm6ZkjrtM+ieR1KGeDhqMnPfHdi407juihqBajN6I5DjJsa uGPw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=voPjJIpaEIENDSX5D22rQL6GtMzeJ5e93HyvmN9lrck=; b=Uloqg12v69T50PuvZD9lSlPtq/1ITjLEKB6sudEeT5Nm8lmTMpVRfVS23wzz9ZImPc AT3y5bgt1HoGQBhXgPdKqeGO6enKZv8A04x+PxnNpVi5gxHeiUDpxGum+rWLt7WXI+N/ 124nUctfkY7BTD/+OnHqGCqWm9M1fqZk7j1PyS9MOxZ2NuAPF7MMTaZgjmOHfzxKwuY3 8MfaFvA/N/7vLt/tTnDL1XyfK2/S87ZH7Eyf+PYfaK2wZ94DbXVQQNLHyswQocq1yvEL Gpd2y20SJPG1XZtths/9bk0rX1NEVn2FcS067KVwPNszCDlU2thG0x3BceSi6weKz7Hp mTOw== X-Gm-Message-State: APjAAAXnxWOSEd5JJHk8tppnUa9f5tgxXf2OI1azs1gYxf4UaQeM/7vW hWiGibNTShjNMT8hvealT1k= X-Google-Smtp-Source: APXvYqxJGgyonBs5GOQpLl8fBNPRPEvQA1Y95A/k3Oi3can/YVX5PkR0Bm+H7W3GHNPK00LXk20wUw== X-Received: by 2002:a65:614f:: with SMTP id o15mr21578292pgv.383.1553494935117; Sun, 24 Mar 2019 23:22:15 -0700 (PDT) Received: from localhost.localdomain ([2001:268:c0a5:e068:c70:4af9:86e2:2]) by smtp.gmail.com with ESMTPSA id h126sm33590899pfc.135.2019.03.24.23.22.08 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 24 Mar 2019 23:22:14 -0700 (PDT) From: William Breathitt Gray To: linus.walleij@linaro.org, bgolaszewski@baylibre.com Cc: akpm@linux-foundation.org, linux-gpio@vger.kernel.org, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, andriy.shevchenko@linux.intel.com, linux@rasmusvillemoes.dk, yamada.masahiro@socionext.com, linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org, geert@linux-m68k.org, preid@electromag.com.au, William Breathitt Gray , Andy Shevchenko Subject: [PATCH v12 02/11] lib/test_bitmap.c: Add for_each_set_clump8 test cases Date: Mon, 25 Mar 2019 15:23:03 +0900 Message-Id: X-Mailer: git-send-email 2.21.0 In-Reply-To: References: MIME-Version: 1.0 Sender: linux-gpio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org The introduction of the for_each_set_clump8 macro warrants test cases to verify the implementation. This patch adds test case checks for whether an out-of-bounds clump index is returned, a zero clump is returned, or the returned clump value differs from the expected clump value. Cc: Rasmus Villemoes Acked-by: Andrew Morton Reviewed-by: Andy Shevchenko Reviewed-by: Linus Walleij Signed-off-by: William Breathitt Gray --- lib/test_bitmap.c | 65 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) diff --git a/lib/test_bitmap.c b/lib/test_bitmap.c index 6cd7d0740005..8d1f268069c1 100644 --- a/lib/test_bitmap.c +++ b/lib/test_bitmap.c @@ -88,6 +88,36 @@ __check_eq_u32_array(const char *srcfile, unsigned int line, return true; } +static bool __init __check_eq_clump8(const char *srcfile, unsigned int line, + const unsigned int offset, + const unsigned int size, + const unsigned char *const clump_exp, + const unsigned long *const clump) +{ + unsigned long exp; + + if (offset >= size) { + pr_warn("[%s:%u] bit offset for clump out-of-bounds: expected less than %u, got %u\n", + srcfile, line, size, offset); + return false; + } + + exp = clump_exp[offset / 8]; + if (!exp) { + pr_warn("[%s:%u] bit offset for zero clump: expected nonzero clump, got bit offset %u with clump value 0", + srcfile, line, offset); + return false; + } + + if (*clump != exp) { + pr_warn("[%s:%u] expected clump value of 0x%lX, got clump value of 0x%lX", + srcfile, line, exp, *clump); + return false; + } + + return true; +} + #define __expect_eq(suffix, ...) \ ({ \ int result = 0; \ @@ -104,6 +134,7 @@ __check_eq_u32_array(const char *srcfile, unsigned int line, #define expect_eq_bitmap(...) __expect_eq(bitmap, ##__VA_ARGS__) #define expect_eq_pbl(...) __expect_eq(pbl, ##__VA_ARGS__) #define expect_eq_u32_array(...) __expect_eq(u32_array, ##__VA_ARGS__) +#define expect_eq_clump8(...) __expect_eq(clump8, ##__VA_ARGS__) static void __init test_zero_clear(void) { @@ -361,6 +392,39 @@ static void noinline __init test_mem_optimisations(void) } } +static const unsigned char clump_exp[] __initconst = { + 0x01, /* 1 bit set */ + 0x02, /* non-edge 1 bit set */ + 0x00, /* zero bits set */ + 0x38, /* 3 bits set across 4-bit boundary */ + 0x38, /* Repeated clump */ + 0x0F, /* 4 bits set */ + 0xFF, /* all bits set */ + 0x05, /* non-adjacent 2 bits set */ +}; + +static void __init test_for_each_set_clump8(void) +{ +#define CLUMP_EXP_NUMBITS 64 + DECLARE_BITMAP(bits, CLUMP_EXP_NUMBITS); + unsigned int start; + unsigned long clump; + + /* set bitmap to test case */ + bitmap_zero(bits, CLUMP_EXP_NUMBITS); + bitmap_set(bits, 0, 1); /* 0x01 */ + bitmap_set(bits, 9, 1); /* 0x02 */ + bitmap_set(bits, 27, 3); /* 0x28 */ + bitmap_set(bits, 35, 3); /* 0x28 */ + bitmap_set(bits, 40, 4); /* 0x0F */ + bitmap_set(bits, 48, 8); /* 0xFF */ + bitmap_set(bits, 56, 1); /* 0x05 - part 1 */ + bitmap_set(bits, 58, 1); /* 0x05 - part 2 */ + + for_each_set_clump8(start, clump, bits, CLUMP_EXP_NUMBITS) + expect_eq_clump8(start, CLUMP_EXP_NUMBITS, clump_exp, &clump); +} + static int __init test_bitmap_init(void) { test_zero_clear(); @@ -369,6 +433,7 @@ static int __init test_bitmap_init(void) test_bitmap_arr32(); test_bitmap_parselist(); test_mem_optimisations(); + test_for_each_set_clump8(); if (failed_tests == 0) pr_info("all %u tests passed\n", total_tests);