From patchwork Wed Oct 9 15:27:00 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: 11181391 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 EE69A13BD for ; Wed, 9 Oct 2019 15:28:15 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 95929218DE for ; Wed, 9 Oct 2019 15:28:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="G7ZmROk2"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="XhKVN2b3" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 95929218DE Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=F9EdPRSDWVLfaCJC3L91TcBHMssVi+HPrNseoGAzkSk=; b=G7ZmROk2Mg6e4R KP/XKe8T0PTCQAXAy8B1fs0Oqbh41EhG3gxSw15nBwKseLavKHEXzbtfhJ/0Ek62vxtO/TAq6Pj93 pSnHwBHB+UCSNmaionEXF12QL3fOMzB33uR3hQ25/CXzoATWZsicas2NXklUzB6MjQrphlp08ExX4 ar4V71nLjlK3tW83eMMYK7WU9mBqlg9dv62I4UwPFyMpjZG6ea6BrviKCz48gdwhuI6lvDjORRxfZ RfpEFUVVQsPQ9hadKKAKsGFvspE2P6hkR5unbqd51PHtsXvy9FrOVRU3ofiC+Efq7WTxWGvOIBEen eV0JsnC8YmB/OOUl50dg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.2 #3 (Red Hat Linux)) id 1iIDsq-0001ye-Bt; Wed, 09 Oct 2019 15:28:12 +0000 Received: from mail-yw1-xc43.google.com ([2607:f8b0:4864:20::c43]) by bombadil.infradead.org with esmtps (Exim 4.92.2 #3 (Red Hat Linux)) id 1iIDsF-0001RS-Uq for linux-arm-kernel@lists.infradead.org; Wed, 09 Oct 2019 15:27:37 +0000 Received: by mail-yw1-xc43.google.com with SMTP id e205so957373ywc.7 for ; Wed, 09 Oct 2019 08:27:35 -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=BimiSAhIyu/wlnbGZzM5zv98VeK3KGxYKaa4VCWD3vc=; b=XhKVN2b3nsHyExn5g3F5i4nQkLizp/ml0iJ6nyIDo8RaY41ylVOc0vRug0oE+UZAge i7aiVMFgkmpOpjS+c3EgFzlyN1cpWIrthK7jSW3uToSXKlX6Jhrxju0R21SjsGZRuyKp Ga2EQkW+onKg8Z5LYWuREGeksADsfpjrH1z7JxA9BcGLXN0APRwI6mj/NaV9cMwQ5/s7 vLz1sfqnQZKxpvaGz8S5aITVxusnXfh4S1dYizvCFDbrftaqF0O+58Ig46PBWrt4xcrC 9uobcnenyu1GareDW34LUr2PUsF4xO+ILnWyjuSck5fNf8YWAoNZs6EPQI4kSCK72LVQ 1Gmg== 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=BimiSAhIyu/wlnbGZzM5zv98VeK3KGxYKaa4VCWD3vc=; b=J4VOE7UMhxs0T4W0vcsV9cuHeqddRrppZJZn3s8rFnfmho+wayeZpUDvZrl9822SV2 7JRDBVn6XDmWsMHunCt+Lc2W08AD3qhWWiHxcVG4ToGEFJcoiaKq+DJ9zHpc5qtXm3Yd rY4cTPVO5dsm2JfaG/eZnUerkUNLWJzYx8c5d5ck5vG8eCSbOQoQiNxphqagZvqPB5n5 XI9GsV4lrhP5FOm37FdXk9Iy9U7ZpNfrrbcHvQcmxVpn2ugXHsgRhm4gp5Sex3ValbHO /RhdIjTO5nk4snDDxXlS2+pZVROifN/8pa7+F660sXJxdVnoqKhXYSYinSGd/wzAfODi p9jA== X-Gm-Message-State: APjAAAXHEn5Owig1bCKzJ5kj/2Iqmfr9iVisQsxT+99wzU3ILYQ/2lGv DrYIbtv2YpAHuUrzkYN6HPM= X-Google-Smtp-Source: APXvYqwFyDfey8Cksi+zaDC4bwYRec4uXM/PDJXCjftXpBCynaS44f28FBJDexcQJTmMprUYCuEbow== X-Received: by 2002:a81:a303:: with SMTP id a3mr3065880ywh.133.1570634854880; Wed, 09 Oct 2019 08:27:34 -0700 (PDT) Received: from localhost.localdomain (072-189-084-142.res.spectrum.com. [72.189.84.142]) by smtp.gmail.com with ESMTPSA id g40sm611863ywk.14.2019.10.09.08.27.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 09 Oct 2019 08:27:33 -0700 (PDT) From: William Breathitt Gray To: linus.walleij@linaro.org, bgolaszewski@baylibre.com, akpm@linux-foundation.org Subject: [PATCH v17 02/14] lib/test_bitmap.c: Add for_each_set_clump8 test cases Date: Wed, 9 Oct 2019 11:27:00 -0400 Message-Id: X-Mailer: git-send-email 2.23.0 In-Reply-To: References: MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191009_082735_991977_18FEAC83 X-CRM114-Status: GOOD ( 13.37 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2607:f8b0:4864:20:0:0:0:c43 listed in] [list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (vilhelm.gray[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arch@vger.kernel.org, preid@electromag.com.au, yamada.masahiro@socionext.com, linux-pm@vger.kernel.org, linux@rasmusvillemoes.dk, linux-kernel@vger.kernel.org, morten.tiljeset@prevas.dk, sean.nyekjaer@prevas.dk, linux-gpio@vger.kernel.org, Andy Shevchenko , lukas@wunner.de, geert@linux-m68k.org, William Breathitt Gray , andriy.shevchenko@linux.intel.com, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.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 51a98f7ee79e..dc167c13eb39 100644 --- a/lib/test_bitmap.c +++ b/lib/test_bitmap.c @@ -92,6 +92,36 @@ __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; \ @@ -108,6 +138,7 @@ __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) { @@ -404,6 +435,39 @@ 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 void __init selftest(void) { test_zero_clear(); @@ -413,6 +477,7 @@ static void __init selftest(void) test_bitmap_parselist(); test_bitmap_parselist_user(); test_mem_optimisations(); + test_for_each_set_clump8(); } KSTM_MODULE_LOADERS(test_bitmap);