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[2a02:3100:a4a2:9601:c082:2dcb:3f3b:92b8]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-49fe0c4b51bsm67169645e9.4.2026.09.23.13.42.06 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Wed, 23 Sep 2026 13:42:06 -0700 (PDT) From: Karl Mehltretter To: Greg Kroah-Hartman Cc: Karl Mehltretter , stable@vger.kernel.org, patches@lists.linux.dev, =?UTF-8?q?Christian=20K=C3=B6nig?= , Sasha Levin , Jianfeng Liu , Rob Clark Subject: Re: [PATCH 7.2 104/438] dma-buf: Make DMABUF_DEBUG default to y on DEBUG_KERNEL kernels Date: Wed, 23 Sep 2026 22:41:46 +0200 Message-Id: <20260923204146.6699-1-kmehltretter@gmail.com> X-Mailer: git-send-email 2.39.5 (Apple Git-154) In-Reply-To: <20260923140647.476063815@linuxfoundation.org> References: <20260923140644.756254324@linuxfoundation.org> <20260923140647.476063815@linuxfoundation.org> Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit I object to including this patch in 7.2.8. I authored the upstream patch, but did not tag it for stable. It corrects a Kconfig default and thereby enables the DMA-BUF importer checks in configurations that take the DEBUG_KERNEL default. Jianfeng has now reported a drm/msm hardware video decode regression from the upstream change: https://lore.kernel.org/r/20260923074256.9357-1-liujianfeng1994@gmail.com/ The impact of enabling this by default for stable needs further discussion. Thanks, Karl