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[195.23.151.163]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-4606f264333sm35485398f8f.4.2026.06.15.07.12.32 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 15 Jun 2026 07:12:32 -0700 (PDT) Sender: Julian Braha Message-ID: <9a446f01-3608-47c0-b53c-323c15749705@gmail.com> Date: Mon, 15 Jun 2026 15:12:31 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/2] drm/v3d: add KUnit reproducer for the copy-query out-of-bounds write To: Michael Bommarito , Melissa Wen , Maira Canal Cc: Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Iago Toral Quiroga , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org References: <20260614131100.2525157-1-michael.bommarito@gmail.com> <20260614131100.2525157-3-michael.bommarito@gmail.com> Content-Language: en-US From: Julian Braha In-Reply-To: <20260614131100.2525157-3-michael.bommarito@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Hi Michael, On 6/14/26 14:11, Michael Bommarito wrote: > +config DRM_V3D_COPY_QUERY_KUNIT_TEST > + bool "KUnit test for V3D CPU-job copy-query bounds" > + depends on DRM_V3D && KUNIT=y > + select DRM_KUNIT_TEST_HELPERS > + help > + Builds a KUnit suite that drives the V3D CPU-job copy-timestamp-query > + handler over a real shmem-backed BO to exercise the destination-buffer > + bounds. Used to reproduce the copy-query out-of-bounds write under > + KASAN. If in doubt, say N. Could you hide this option from the Kconfig frontend when KUNIT_ALL_TESTS is enabled? E.g.: bool "KUnit test for V3D CPU-job copy-query bounds" if !KUNIT_ALL_TESTS >From Documentation/dev-tools/kunit/style.rst: "This Kconfig entry must: * be visible only if ``CONFIG_KUNIT_ALL_TESTS`` is not enabled." - Julian Braha