From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (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 C198813B5B3 for ; Tue, 23 Jun 2026 18:33:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.50.34 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782239636; cv=none; b=WrakLMXYJUsnu/ZIs3tTcFqPDEh1jO2kagaBzzIGyE4qJPTX746u43kV//tgrKY/NQhj2r+/kDpaU0EhMQuPre2EEkamzGIrbIzlAUZDlkJfn33ubVntAlWapTrYIQUM+s5eQJbjK/qW6wS5G63p+XcVFa9QpTZYHQZ8PeNzRBk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782239636; c=relaxed/simple; bh=BYGCRUavWtC4UozqOOtBS5Qrx+uT2/SQkl4Icb0UDnI=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=ArTs9quKHI0HQudJKf/rWHEou2rmMVSMhPSFuc1U8o7y5tuF1xfL/31Pd2myBWbXTZrQ64k/OOsKIR2UJDJpdpxC9TGcgBU8o8CZO+PJeRVr5EXjKL8FNZpAvGHehJRC8LWS/tCJcF0NOsxmblKOnZqyFwjgrHIUFozAS0lrRMg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org; spf=pass smtp.mailfrom=infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=HmuvRFHe; arc=none smtp.client-ip=90.155.50.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="HmuvRFHe" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=8gavGOESHLq3+poxJrUxbYbmCuo9oiYFM15F/Tg6AEA=; b=HmuvRFHeDE7oJMQz0vOstfzrQZ caCfhKNV7npiQ9lxy2BfPq+mh/C3C0nm5oPCSr7DO2Ubc61J6uJxhYZAcprNT9gWiDtpO3JhMIZH2 c+B9CuXL30eQZ5nTU+FlHZlGMM2IvnROwgBxPkEkByNe8jxasvwd57rX42o3l8KDJrWErQVxVtP1N 1fQSn62S/yX4og+7pYw/D3lQZaO50zuxLbxspWGoPQ9PCq14W+crmwXsT//eJqlEDBqfpHLwo7E7W AM2fCdu0SwaipdbFyBVeOXcAWPMIYGJ8MbM0jgjYmElkgn/tir72WYvOGIew7cMxKvt6S9NmfddqV ZYaUEwqA==; Received: from willy by casper.infradead.org with local (Exim 4.99.1 #2 (Red Hat Linux)) id 1wc5wM-00000006cwF-1Y3h; Tue, 23 Jun 2026 18:33:42 +0000 Date: Tue, 23 Jun 2026 19:33:42 +0100 From: Matthew Wilcox To: "Christian A. Ehrhardt" Cc: Boris Brezillon , dri-devel@lists.freedesktop.org, Steven Price , Liviu Dudau , Andrew Morton , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] drm/panthor: Check VMA boundaries for PMD mappings Message-ID: References: <20260623181942.1536598-1-lk@c--e.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260623181942.1536598-1-lk@c--e.de> On Tue, Jun 23, 2026 at 08:19:42PM +0200, Christian A. Ehrhardt wrote: > The panthor version is only compile tested because I don't > have the hardware. However, the code is identical to that > fixed in [1] and I have a reproducer for that. > > No need for for stable backports. The code is new in 7.1. What documentation did you need to see to persuade you to use map_pages instead of writing a huge_fault handler? (yes, you're all Doing It Wrong, please stop, but help us help you)