From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=51.159.59.229 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793281858; b=gJKDioYDxEyMQzZ8Atzu34BZsSHYEfIGau5gtX1WY7Ifm43fTWymyrwiQHCyTl0E90bj rmjXdpjfH4Eiz7OPMwdxDfSWzUY6afdBYi2mcFnmsRfmnRLUWrMqFQnA7TcWvWyPWCogY AHIGe9p7QubnRmAH+G2pAxIX373vxeyc3UCYy1VHpj0X8RLZPdNeu87Jq+rPgNuiKUmv+ 7bn2XdvEm5MKW7ztfLvMMeVI056JYI19rAQAOBtpLZ2MdPveRown9dJ0vbpO6NIfUZIjt op0DTqMjStxpxzRz98rvz0Jnd89wJEGRc9Nh38W+53GZkf3komzQFz4K4W5nt2XuloQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793281858; h=DMARC-Filter:DKIM-Signature:Received:Date:From:To:Cc:Subject: Message-ID:References:MIME-Version:Content-Type:Content-Disposition: In-Reply-To; bh=tl/0tt4DBdnUlTF61vXRxhF+HFOKLRG/ZnDXYNQcxMU=; b=zTigMAaiIk1i02jJcZfVinmu43jHO3+paOLXT0G2wtm3gdwEFUEqsWmjuUNUgHemrhAZ S+xss4ZzbnNbbqZk3c2zcXqKvyuA3w1gcNe15x+hcSOh0ElJINKm5/F2DYYF/Rs+zbzny mspc+p3aqdrtoqQ4VrZfxkDhFT9aVGyDfjsbgCx5l+FJpCK1YmWQZd6zaZglCJlDjrfIn OAS/JYAENL2m/mhcK9b2mgaReVQhym06+nvlr8+yBUIdEK34ALxu9rpcTn8D9EXjh7fbV fqiVCocczFuFAMKO90uxXGY8DefhbYzi7ut0E5jmwLCZvFFttLUYhzLuXZ4Mw+/fS+Q== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=1wt.eu; spf=pass smtp.mailfrom=1wt.eu; dkim=pass header.d=1wt.eu header.i=@1wt.eu header.a=rsa-sha256 header.s=mail header.b="nPaKuxv/"; arc=none smtp.remote-ip=51.159.59.229 Received: from mta1.formilux.org (mta1.formilux.org [51.159.59.229]) (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 D1B4B606A31A for ; Thu, 29 Oct 2026 13:50:56 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org D1B4B606A31A Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=1wt.eu Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=1wt.eu 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/ 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-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: 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