From patchwork Wed Apr 3 13:19:26 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Guenter Roeck X-Patchwork-Id: 13616154 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 720E2CD128A for ; Wed, 3 Apr 2024 13:20:55 +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=/SUI3zcDnz6aGidg9L0EvST6bJIwuIzwzO3oJKdt6O4=; b=UqrVCbX9dIxvKa dRLYIAaPdEGVraZO1zCGq4vcyKBbEL/htdQW9skCcA1kP0hhgaxFb+t+8rpwKKFe13w+9nPICy6ZM W8XFMzp+9m+wnEcMhuK/RsM/ovGa0PjmRfvKuWCizKWvX+BnvEDoWQbSCHfuL+DNicNU/TdEuSEhA KeLNIHPodqi6Zd4IJrru+Ut/AJr1VQTKbx4tNWF6D/CBLzBH0UX43kbPmtiaGN6QRQR6WW9E5G6vn COSQNnuHU5VyoK3wx5THKSgwhfaReF3qeHW1yYdonzkiphtvAP76zWvM0Eashf2tdSv4s+uNBmQ+j siJ8i/B8AMEHLl1SuPzA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rs0Xk-0000000G92U-0IVR; Wed, 03 Apr 2024 13:20:44 +0000 Received: from mail-pl1-f172.google.com ([209.85.214.172]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rs0Wv-0000000G8We-2kVy; Wed, 03 Apr 2024 13:20:08 +0000 Received: by mail-pl1-f172.google.com with SMTP id d9443c01a7336-1e2987e9d06so3697335ad.2; Wed, 03 Apr 2024 06:19:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1712150391; x=1712755191; 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=0HH3He2M5JGBbpn1IyUzwQbFpqNeS8i3zDjnB0NO5L0=; b=AJE3WnbGUhAwDJcB3ZG5ldW6A4tQjOwrz/14AwYD6oKv4BTvX+mBBX8gmkNVzPM1HN snn3T61q8V31n+X1fwriUtSqcC7Nmq61XwCzVcpuh3D2SGGqCUsO0gWmpEH4BcLn3lLv K+cJTNXD50Qnd42ruEVuasnXD7C6cx7EH4aDibvLQJNAiYDE7phyDBNBNj51JIkTSZzV cqlzRTYEjdI6azjYzMeCkf+AqUYTaaD02cGujF3HYXuS3YAvLNXy+DxVEoDj/7xs3uHu 3BbtiqBGVIJ0kQaFmIsvXcfnftml8GLxl30JtA76Cco9AAYygell20bMdIgOyhQ3T30h 2hzA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1712150391; x=1712755191; 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=0HH3He2M5JGBbpn1IyUzwQbFpqNeS8i3zDjnB0NO5L0=; b=YpLPLWHeJk8wA7uYYxg1KVyxRdToE0vxTUlaaKTpeLZzhCz6j+3gSrUB/tJyNEplDI tyY88lVFltB0XzAHRxXB7HBkkK36ZnPb1CxJA+X/DyxH9rJ0aMWs9DlTIV2ZbwfAktJS gksVvRSufDHmREmBpnJeZJur/O+B78EOarOed0HjQ1JCWRp8cFcvhbG5VpRnaSxTC5Ku +YEvIx5ebdYXIwW3T4dV1E5Eca0SWjueAK/Cfbnm3vC/VE9bE4tT8scsofTf5GXoUmc1 OOAY9OKK5Pb5H7rfh830VmezSoQJ94sc2gbsFDku6n/4rTluNESpOHv329G8EGCi8Eu/ vsRw== X-Forwarded-Encrypted: i=1; AJvYcCXWzw7PKqADoWuDxJWkO2+HpxgIQ7nKPi7ZwfSR20nbPE5lZase92c29i9UUQuwUgDsbT30HQdN4H4IyFdpyHy3awvHDV9Y6ons6SpIwSVLejisEXziaEggtuLhULczG6bATB2lyTFwfye026MvhPQCMeTFQQM= X-Gm-Message-State: AOJu0YzPMss+MbtZjhDglvLgHIvktVRArmK+4noeJs2gmSisdM0SO2LB d3THAhmBxL43j3R68Suftj3kMzeg1CIq0WalVbwnYeoIm7DudtVs X-Google-Smtp-Source: AGHT+IGzp4oN8GRSo/9EyN0xy1NOVYsP3l70Car4fBvR2s7g6gbB9/O+yleAACI5/eSTY78txokLLg== X-Received: by 2002:a17:903:d1:b0:1e2:a177:d6b with SMTP id x17-20020a17090300d100b001e2a1770d6bmr229571plc.19.1712150391428; Wed, 03 Apr 2024 06:19:51 -0700 (PDT) Received: from server.roeck-us.net ([2600:1700:e321:62f0:329c:23ff:fee3:9d7c]) by smtp.gmail.com with ESMTPSA id h1-20020a170902b94100b001dd0c5d5227sm13149194pls.193.2024.04.03.06.19.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 03 Apr 2024 06:19:50 -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@vger.kernel.org, x86@kernel.org, Guenter Roeck , Linux Kernel Functional Testing Subject: [PATCH v3 05/15] drm: Suppress intentional warning backtraces in scaling unit tests Date: Wed, 3 Apr 2024 06:19:26 -0700 Message-Id: <20240403131936.787234-6-linux@roeck-us.net> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240403131936.787234-1-linux@roeck-us.net> References: <20240403131936.787234-1-linux@roeck-us.net> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240403_061954_154525_372BC30F X-CRM114-Status: GOOD ( 12.21 ) X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The drm_test_rect_calc_hscale and drm_test_rect_calc_vscale unit tests intentionally trigger warning backtraces by providing bad parameters to the tested functions. What is tested is the return value, not the existence of a warning backtrace. Suppress the backtraces to avoid clogging the kernel log and distraction from real problems. Tested-by: Linux Kernel Functional Testing Acked-by: Dan Carpenter Acked-by: Maíra Canal Cc: Maarten Lankhorst Cc: David Airlie Cc: Daniel Vetter Signed-off-by: Guenter Roeck --- v2: - Rebased to v6.9-rc1 - Added Tested-by:, Acked-by:, and Reviewed-by: tags v3: - Rebased to v6.9-rc2 drivers/gpu/drm/tests/drm_rect_test.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/drivers/gpu/drm/tests/drm_rect_test.c b/drivers/gpu/drm/tests/drm_rect_test.c index 76332cd2ead8..66851769ee32 100644 --- a/drivers/gpu/drm/tests/drm_rect_test.c +++ b/drivers/gpu/drm/tests/drm_rect_test.c @@ -406,22 +406,38 @@ KUNIT_ARRAY_PARAM(drm_rect_scale, drm_rect_scale_cases, drm_rect_scale_case_desc static void drm_test_rect_calc_hscale(struct kunit *test) { + DEFINE_SUPPRESSED_WARNING(drm_calc_scale); const struct drm_rect_scale_case *params = test->param_value; int scaling_factor; + /* + * drm_rect_calc_hscale() generates a warning backtrace whenever bad + * parameters are passed to it. This affects all unit tests with an + * error code in expected_scaling_factor. + */ + START_SUPPRESSED_WARNING(drm_calc_scale); scaling_factor = drm_rect_calc_hscale(¶ms->src, ¶ms->dst, params->min_range, params->max_range); + END_SUPPRESSED_WARNING(drm_calc_scale); KUNIT_EXPECT_EQ(test, scaling_factor, params->expected_scaling_factor); } static void drm_test_rect_calc_vscale(struct kunit *test) { + DEFINE_SUPPRESSED_WARNING(drm_calc_scale); const struct drm_rect_scale_case *params = test->param_value; int scaling_factor; + /* + * drm_rect_calc_vscale() generates a warning backtrace whenever bad + * parameters are passed to it. This affects all unit tests with an + * error code in expected_scaling_factor. + */ + START_SUPPRESSED_WARNING(drm_calc_scale); scaling_factor = drm_rect_calc_vscale(¶ms->src, ¶ms->dst, params->min_range, params->max_range); + END_SUPPRESSED_WARNING(drm_calc_scale); KUNIT_EXPECT_EQ(test, scaling_factor, params->expected_scaling_factor); }