From patchwork Tue Mar 12 17:02:57 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Guenter Roeck X-Patchwork-Id: 13590552 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 16BAAC54E66 for ; Tue, 12 Mar 2024 19:31:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=QwDkCmjZ9Y27CU2RDEs8bFe5+2pjbZczcddpXs7dNFE=; b=G+jfiXxdIkr6vX URoLbnCpOeZV/zG9MWI3Rbfll0NrZxioAcmPoilIWuGWLnyVUE6XHRhBf3iG4PbitSpcMXrUSdip6 ag2yChl7w2SvOgMQsx5YRHTsSKGMKHt8HznJvcgj17DsZ5/guxFsK/XmcuRvzdhDjyvv5Sp5PkBmU IfW3ikKXBFV/VmnmPFkzmeVfDFFiMBo8kG5K0BDa2QLqjWbWA+V21/EvPPhpCjxa0kYWD7rqvZXRm FtglMkWtR6IJQsu/FX5tbXmLir/LfeCz7M2kftmiIdz7wTPZm9vAhN23eWNn9vMSvG1Lmi2Og26Ip /6z7gxBHdC6L80epvEMQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rk7qQ-00000007IBf-2TLu; Tue, 12 Mar 2024 19:31:26 +0000 Received: from mail-pl1-x62f.google.com ([2607:f8b0:4864:20::62f]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rk5X5-00000006iac-3WsT; Tue, 12 Mar 2024 17:03:21 +0000 Received: by mail-pl1-x62f.google.com with SMTP id d9443c01a7336-1dc49b00bdbso34336775ad.3; Tue, 12 Mar 2024 10:03:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1710262999; x=1710867799; darn=lists.infradead.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:sender:from:to:cc:subject:date :message-id:reply-to; bh=R3Kc+Yh+XQ4llosDDGAwX/2k1FGi6g14GWlRJRORANM=; b=mUkelREQqLvN8BVawZEUf7EbtBBW3ePLGSKJVVNjP2ez66BiL/hHHZYuy2Jq/f9gKU Dgp2+yYWlRnqpLdOhEhu0qOYD7lLywaA3HavUmVK1aj/nUuFaE9txaRvpCKfQX1DbxXP ymvYsqMm1oPn6jolsEMZKUKqr82GPpPaXDdyGCeix02gB5b3Zxa4j3ZAaxjasz3rgzfJ rD85Xb8jjP67Mcuzhxeu6qqdGzIf6RwiUvuUOBT9HFsjeh2vTmU4q39RxVo+2y4cYQXh Ty++hhw2VvuL+wi+CqkmvSRIzRC/VQhZe90YuG6+ssayX7+xcmPO5a5O37Hukg11iRHX 3yRA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1710262999; x=1710867799; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:sender:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=R3Kc+Yh+XQ4llosDDGAwX/2k1FGi6g14GWlRJRORANM=; b=IAphAlI4ejzgUQ/iuJRaoQ0NB4zipi7h25IQUUuuGdGEdmfdPXr5EUg5w+MNfazIAd 6jkszv57piAnUNRH6usGZhORv7qeLfgXmp9nWhGlnuER2Q96iB5DHr8p8LbSJMs8JD11 A3yH9WwMwQBgV5v83/ZFRJCGFCyuexeD7emx8uqLj7j6OccGhpP5V8tVTbnSSZ16z8IX +L+u8dT260n/PNxGCclE0305zfNYUeCuVZvIdxLnzNuLWfk8AtwzfbqE024vktb7dqOY Ilyeukd+oUwriYGQqCfPuB5ebA4nn++t2yZdJrrVQzToxBmxlYwGru8r+Cz2ta0+b4bw i4Lg== X-Forwarded-Encrypted: i=1; AJvYcCVGd6sAiGe3qZ4SnaszWqY9VqmD4K5IV3m5o9E0ElhS9A4X8J+rvUWm6jtiP/zkHRPkGDz95ib34xbELv9/ZLN22yzpThtsxYy2mL0YDD9jdzOiXvveuUNfS+B6Snw1qa1xLa2l34ApIPIj0/V3U/4FbZwY4eA= X-Gm-Message-State: AOJu0Yx15JSY3NjqKYdC05C4fqwR+p5F8f1s5Qacpim0NFFRZY7pa2E5 TmJkPR9Nl2btuyu2Ci4/yizX2YEH5nvkpvvqvJgsZRVjBrL4vss4 X-Google-Smtp-Source: AGHT+IEtMqO0igDV/OJPl9l/q0X7vf8EgJ9VbKv7ARIuPeUFcb0gEvMyJN5DQCEgr2SoDMnFKNIL1A== X-Received: by 2002:a17:902:7b95:b0:1dc:418f:890b with SMTP id w21-20020a1709027b9500b001dc418f890bmr8936395pll.40.1710262998624; Tue, 12 Mar 2024 10:03:18 -0700 (PDT) Received: from server.roeck-us.net ([2600:1700:e321:62f0:329c:23ff:fee3:9d7c]) by smtp.gmail.com with ESMTPSA id e4-20020a170902b78400b001dcc3a46a6bsm6883069pls.262.2024.03.12.10.03.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 12 Mar 2024 10:03:18 -0700 (PDT) From: Guenter Roeck To: linux-kselftest@vger.kernel.org Cc: David Airlie , Arnd Bergmann , =?utf-8?q?Ma=C3=ADra_Canal?= , Dan Carpenter , Kees Cook , Daniel Diaz , David Gow , Arthur Grillo , Brendan Higgins , Naresh Kamboju , Maarten Lankhorst , Andrew Morton , Maxime Ripard , =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , Daniel Vetter , Thomas Zimmermann , dri-devel@lists.freedesktop.org, kunit-dev@googlegroups.com, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, loongarch@lists.linux.dev, netdev@lists.linux.dev, Guenter Roeck Subject: [PATCH 02/14] kunit: bug: Count suppressed warning backtraces Date: Tue, 12 Mar 2024 10:02:57 -0700 Message-Id: <20240312170309.2546362-3-linux@roeck-us.net> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240312170309.2546362-1-linux@roeck-us.net> References: <20240312170309.2546362-1-linux@roeck-us.net> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240312_100319_918818_0F4C550B X-CRM114-Status: GOOD ( 13.82 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Count suppressed warning backtraces to enable code which suppresses warning backtraces to check if the expected backtrace(s) have been observed. Using atomics for the backtrace count resulted in build errors on some architectures due to include file recursion, so use a plain integer for now. Signed-off-by: Guenter Roeck Reviewed-by: Kees Cook --- include/kunit/bug.h | 7 ++++++- lib/kunit/bug.c | 4 +++- 2 files changed, 9 insertions(+), 2 deletions(-) diff --git a/include/kunit/bug.h b/include/kunit/bug.h index 1e34da961599..2097a854ac8c 100644 --- a/include/kunit/bug.h +++ b/include/kunit/bug.h @@ -20,6 +20,7 @@ struct __suppressed_warning { struct list_head node; const char *function; + int counter; }; void __start_suppress_warning(struct __suppressed_warning *warning); @@ -28,7 +29,7 @@ bool __is_suppressed_warning(const char *function); #define DEFINE_SUPPRESSED_WARNING(func) \ struct __suppressed_warning __kunit_suppress_##func = \ - { .function = __stringify(func) } + { .function = __stringify(func), .counter = 0 } #define START_SUPPRESSED_WARNING(func) \ __start_suppress_warning(&__kunit_suppress_##func) @@ -39,12 +40,16 @@ bool __is_suppressed_warning(const char *function); #define IS_SUPPRESSED_WARNING(func) \ __is_suppressed_warning(func) +#define SUPPRESSED_WARNING_COUNT(func) \ + (__kunit_suppress_##func.counter) + #else /* CONFIG_KUNIT */ #define DEFINE_SUPPRESSED_WARNING(func) #define START_SUPPRESSED_WARNING(func) #define END_SUPPRESSED_WARNING(func) #define IS_SUPPRESSED_WARNING(func) (false) +#define SUPPRESSED_WARNING_COUNT(func) (0) #endif /* CONFIG_KUNIT */ #endif /* __ASSEMBLY__ */ diff --git a/lib/kunit/bug.c b/lib/kunit/bug.c index f93544d7a9d1..13b3d896c114 100644 --- a/lib/kunit/bug.c +++ b/lib/kunit/bug.c @@ -32,8 +32,10 @@ bool __is_suppressed_warning(const char *function) return false; list_for_each_entry(warning, &suppressed_warnings, node) { - if (!strcmp(function, warning->function)) + if (!strcmp(function, warning->function)) { + warning->counter++; return true; + } } return false; }