From patchwork Wed Mar 27 04:59:05 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: 1066479 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="hwamcCt2"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 44TbNg18Lwz9sSR for ; Wed, 27 Mar 2019 15:58:11 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725827AbfC0E6K (ORCPT ); Wed, 27 Mar 2019 00:58:10 -0400 Received: from mail-pl1-f194.google.com ([209.85.214.194]:40470 "EHLO mail-pl1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725613AbfC0E6K (ORCPT ); Wed, 27 Mar 2019 00:58:10 -0400 Received: by mail-pl1-f194.google.com with SMTP id b11so2719290plr.7; Tue, 26 Mar 2019 21:58:09 -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=hwamcCt2ulELLEuskhsLCImVFMv2a97a0lQZoYcRyKuJrzsjVIqZU2frCB8UMNZvvC oaacF4wgDmoIgX2DUUpDVCl+MSnEo2A8Y9PSz2isQd0SIZprEQUcQ5TG82IxYtEBFh63 mM3FrKIk3zFchrNeuhIL+7Z4gojX/dz5khT2bMZo1NmIKlppI5fHST2mLwx/Zg1t+9Uu sMOJrHtRzUU2+TAJV1ON7P56OJK0aqodRrPtffq83Po4Rqp32Af2bEU9KuRDhznHC0VA 72y44/ibe1oVK9TO7pJWxKt624iDJSHqXrwDTk7iI7llFXvA+yn6OAULWM5WQTndpYQg OBHg== 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=qqUhDRMFaMgKkHbIzEbK3W/nQb0GmDX36yGApwRGTkjsv1nIhyXZ1kVcC+mkg46IRk 3fw3+fnpVRX/z+JVKcMD+lRE8Tmv7Ib8HE+AVuNGAQdzd8R2vLqVSJYCXSsGqejUsmnh D+nq8afNHRfobf7iXkQDEoeXOH3xH6hmaPRxnAD3PVJ8UyXeUeNbDUA+2pikkXtMm58G tlQAKGKXfCGp7aJ2OKcsnKZ3GKphm4Qk0Da89pVxSkOSzAc0YV69zsnAhIvvEJEo/1AK RLMRyqSFqMU/OtXJJs+Nqk69Jgn7y5N9f32Wy+O+wV34OMr2SiBhvvZp6l/36CGkhbm6 WerQ== X-Gm-Message-State: APjAAAXLwOLtF9V2br3Fql9BGYjtv+k/DsvrdNAS25nnlWAaa/595Rd6 ej4AGzlUnohHeVYUd/LS0n8= X-Google-Smtp-Source: APXvYqzo65K90+xL7aOCZ0TQNayGxWizVGQ3lrqBiJdDKj1edlvX8dhBi6MkQL5Ybh1LoRvlUQ7wRQ== X-Received: by 2002:a17:902:a612:: with SMTP id u18mr34599414plq.145.1553662689376; Tue, 26 Mar 2019 21:58:09 -0700 (PDT) Received: from localhost.localdomain ([2001:268:c0a5:6014:c70:4af9:86e2:2]) by smtp.gmail.com with ESMTPSA id d130sm44455194pfg.49.2019.03.26.21.58.04 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 26 Mar 2019 21:58:08 -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 v13 02/11] lib/test_bitmap.c: Add for_each_set_clump8 test cases Date: Wed, 27 Mar 2019 13:59:05 +0900 Message-Id: <924aa49777091e103c383073800c908c55bce631.1553661964.git.vilhelm.gray@gmail.com> 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);