From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5AAF4606A31D for ; Thu, 29 Oct 2026 13:58:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=1wt.eu header.i=@1wt.eu header.a=rsa-sha256 header.s=mail header.b=nPaKuxv/ Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C56AF112312; Thu, 29 Oct 2026 13:57:58 +0000 (UTC) X-Greylist: delayed 421 seconds by postgrey-1.36 at gabe; Thu, 29 Oct 2026 13:57:52 UTC Received: from mta1.formilux.org (mta1.formilux.org [51.159.59.229]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5638510E11B for ; Thu, 29 Oct 2026 13:57:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1wt.eu; s=mail; t=1793281848; bh=tl/0tt4DBdnUlTF61vXRxhF+HFOKLRG/ZnDXYNQcxMU=; h=From:Message-ID:From; b=nPaKuxv/tGVfzxOcF7CanXXMNFyXL/yODBN8CwF9xXMo12U5uyq8zPY3tuCcwhA3H 68e7M3EY6brLogSotsZTWQ9CwSlBMoMgXiTq2fBDSK/5FzM6g3KKCD6f9B1caw/dDE AgOBY4+91DV3DQl6Ir6fVEwC4fq0QT9hPcitenrk= Received: from 1wt.eu (ded1.1wt.eu [163.172.96.212]) by mta1.formilux.org (Postfix) with ESMTP id AB305C0923; Thu, 29 Oct 2026 14:50:48 +0100 (CET) Date: Thu, 29 Oct 2026 14:50:47 +0100 From: Willy Tarreau To: panyuhang@hdu.edu.cn Cc: zack.rusin@broadcom.com, gregkh@linuxfoundation.org, bcm-kernel-feedback-list@broadcom.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, daniel@ffwll.ch, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] drm/vmwgfx: unpin BOs without revalidating placement Message-ID: References: X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "dri-devel" X-Spam-Status: No, score=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 On Thu, Oct 29, 2026 at 04:19:24PM +0800, you wrote: > > Unpinning a buffer object does not change its memory placement. > Placement revalidation is unnecessary. Currently > vmw_bo_pin_reserved() calls ttm_bo_validate() for both pin and unpin > operations and treats any validation error as impossible with BUG_ON(). (...) Please *stop* CCing security@k.o for public e-mails. We already have enough noise to stay busy, no need to add public messages there! Thanks, Willy