From patchwork Thu Mar 13 11:43:20 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Alessandro Carminati X-Patchwork-Id: 14014781 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 807382698BC for ; Thu, 13 Mar 2025 11:44:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741866287; cv=none; b=pcjxkcnZYT3xKipCkq+7OfA4v9oopIIUfxaapMWdbTcjVUL2sfCFptNBk3TzqS55ChPVW7DLb9P8fKFuvoo8cuqDIRL0tkQENyQoBSn7733Jc/qfwcOOZuwuOESUi4+tChuotGAUhxmFvQLXmeRTlbfiudEgcabgdZABmFziusQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741866287; c=relaxed/simple; bh=0zAXw8Fu4pWyrls3J/qZaqJC0Q8LMMCdN0t5bJavxBw=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version:Content-Type:Content-type; b=iZTc1WpTOyg2k87ZzvJjqfftGVHrc2IRfAWUsU+RZ5zylfbUrXbY8BBiEzArYKubQ2WxfcMtqwoQE5If4HSGG4gObatgFdUgZC+HToGvG6zoAb6jyW4lCF5YzMQf/+gMfcrg4+SrmTk+AWjtUlTI8Q05WR2s8+jceu6Per0wtm8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=RW83EQv0; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="RW83EQv0" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1741866283; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=a3r2g39Wllme+8/IppJMHdqpnHPlgxpExHUFAvvaA/g=; b=RW83EQv0m9U7Kt8rGIWcei1mellTDeoY0OvNnJ8UuLylvv6Y/wONcmAxbU8Ts92tFm2UH/ HFnc/wfX8XlKyzwIeWSrlTqXQ4UBHXEwB5bWHdjzckQwRIkXlCMEkT6jEdmH8yhm4Nc9X4 bzsDv0rthTzSRzMLl+V8UEEV6YXHFiQ= Received: from mail-wm1-f72.google.com (mail-wm1-f72.google.com [209.85.128.72]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-79-6zr0niXZOmOakG_5XyAK-Q-1; Thu, 13 Mar 2025 07:44:42 -0400 X-MC-Unique: 6zr0niXZOmOakG_5XyAK-Q-1 X-Mimecast-MFC-AGG-ID: 6zr0niXZOmOakG_5XyAK-Q_1741866281 Received: by mail-wm1-f72.google.com with SMTP id 5b1f17b1804b1-43bd0586a73so5903115e9.2 for ; Thu, 13 Mar 2025 04:44:42 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1741866280; x=1742471080; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=a3r2g39Wllme+8/IppJMHdqpnHPlgxpExHUFAvvaA/g=; b=bHDnLgurltbnQ5tK3dOm481NCkPXELigo9rOfUHjdjWqvGmQ/r4AGlf2TP/f/pT1HT i43a7OaKJQ+sMVVdJVzVD5TGE9sPLJ/7wN72oQ9Gkx12IAE8PVa8rsddq68IXqHxdrDc rVj4HvmXc6Bb74tHhO9IaO/rV2V8DIlRx6w2HyfbWyhR1666UlXGIKm6kMYlNi0nqvZp t1UBLTJhQDiNXvdNTM6YNpg/Q6XYSosRWj5KAWhBna2kKsObY3DsUnixBw8wD+RK6hZ/ GZy9k8nIUZRCsjzmCJRrJbOLhdwFFELMY32R+uQWTtus8OXq3likt7TNeY4OGErxxYlm 5LLg== X-Gm-Message-State: AOJu0YyMfw7F7WgbrehQO8Jc9uZ7dxPAOCcoO0SaP66JLoLdrDt+Wr7S jJ/EZfNR3e3pPzKsjvLwyVKOWucSQmJ4ZXrd2KaVBgldUdLMFqSwqBVRnVbgEN3KbBY2iemu8jR Rjutf8QtUjywE4g51FtJ947wa7dz+BBX9WQkuQVoRaqMAbxYVrDglXVWw97yEB49hWYCYTQQg9q 3t3317oq6Vx0fWIsRSjDxFg77Q7eYZ1XD22TpO/6kouCAsHXM8SDFK X-Gm-Gg: ASbGnctVrR+BAYI9srEIa3oeNH4UbaYfwlA4aJ6mkQYu9fczztMp+afYt6tAynT+EA7 khj7tt8t0zCIWZ0xpGoIhLhSs7fwi75ySKc5kgV0xEb0L5RjNR+Kw8eCqzi/Pxd+50/MkS9blMf GfXNwQU4fyzmijwo9fClStvx71bW8zK74uDDLQi+eQiIw6NHB8SMTVONaRqqhDD+uHmr8mG/6AM ATbXtGWhDbomLnCC/EEeJnNMtR15FmhW8wXuIFcBV2fC0itYdfWB0/ZR6WO2bmlqxGQtOCVAZae tG4vfWn/z80xhISX5wwj X-Received: by 2002:a05:6000:402a:b0:390:d73a:4848 with SMTP id ffacd0b85a97d-39132db1bdcmr22489012f8f.47.1741866280432; Thu, 13 Mar 2025 04:44:40 -0700 (PDT) X-Google-Smtp-Source: AGHT+IGX54DwhuuXuiX517uvSUEgVEhgO3UBbgNo/IaPOPi6DbNC92jX9q/7SC3qQwivycyOtbvIkA== X-Received: by 2002:a05:6000:402a:b0:390:d73a:4848 with SMTP id ffacd0b85a97d-39132db1bdcmr22488963f8f.47.1741866280013; Thu, 13 Mar 2025 04:44:40 -0700 (PDT) Received: from lab.hqhome163.com ([81.57.75.210]) by smtp.googlemail.com with ESMTPSA id 5b1f17b1804b1-43d188b754asm17844115e9.14.2025.03.13.04.44.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 13 Mar 2025 04:44:38 -0700 (PDT) From: Alessandro Carminati 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 , Guenter Roeck , Alessandro Carminati , Jani Nikula , 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, x86@kernel.org, Linux Kernel Functional Testing , Alessandro Carminati Subject: [PATCH v4 05/14] drm: Suppress intentional warning backtraces in scaling unit tests Date: Thu, 13 Mar 2025 11:43:20 +0000 Message-Id: <20250313114329.284104-6-acarmina@redhat.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250313114329.284104-1-acarmina@redhat.com> References: <20250313114329.284104-1-acarmina@redhat.com> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-type: text/plain From: Guenter Roeck 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 Signed-off-by: Alessandro Carminati --- 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 17e1f34b7610..e8d707b4a101 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. + */ + KUNIT_START_SUPPRESSED_WARNING(drm_calc_scale); scaling_factor = drm_rect_calc_hscale(¶ms->src, ¶ms->dst, params->min_range, params->max_range); + KUNIT_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. + */ + KUNIT_START_SUPPRESSED_WARNING(drm_calc_scale); scaling_factor = drm_rect_calc_vscale(¶ms->src, ¶ms->dst, params->min_range, params->max_range); + KUNIT_END_SUPPRESSED_WARNING(drm_calc_scale); KUNIT_EXPECT_EQ(test, scaling_factor, params->expected_scaling_factor); }