From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8F556C982E1 for ; Mon, 21 Sep 2026 06:57:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type:MIME-Version: Message-ID:Date:References:In-Reply-To:Subject:Cc:To:From:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=8AbV6ioiEGOWrXlJd0nFCFw/BQn3PCB4bJsD0M3s6ZI=; b=i8CmXlP0BABEpwdjnJwK0W9L7W 9lREDb2ZoVE1ro/i+ZYHBMX90XsrqjUx2TkwF4ATRFOc6S/LrLaSOteZLtB3F8OhLqwi2Sc84pdmW RF/EnOBgC6shAUjZAV6ur4StvP2nmi3qk+IdTiQPFtxrX7/1V+qwAgUP+NvebfOiDMcoV7EA5aerS bqc6KE46c8y6lZbLyNRl/F5F5RZ2HjUCe+i5QPNj+Osn01mKikJkaN1TBHAp6xWt4/E5ag5TKuhlW U5DatdAaTd/b+Uba7ueWUTrSEXym3TF8K42nlR5RXQVKjJOAhzt2yGZ24X//LjPFe0SEstjSyhMdt +iIPI5mQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1x8XyD-000000018Ua-3xtI; Mon, 21 Sep 2026 06:57:45 +0000 Received: from sea.source.kernel.org ([172.234.252.31]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1x8XyC-000000018U7-2RiH for linux-arm-kernel@lists.infradead.org; Mon, 21 Sep 2026 06:57:44 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id 20BF243224; Mon, 21 Sep 2026 06:57:44 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7ED401F000FF; Mon, 21 Sep 2026 06:57:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1789973864; bh=8AbV6ioiEGOWrXlJd0nFCFw/BQn3PCB4bJsD0M3s6ZI=; h=From:To:Cc:Subject:In-Reply-To:References:Date; b=CsdfJbqGXWpoA8CDYUjjF6BytwF09mEWBrwRs12h1PFAOuUvpL1ulZBI77Odkr6e3 k85k4aDhb3EqzqIyrQITn1tMNskmhogMSS0PWqF5df/fnFQnhjSXEAcLHXdYEgHLgU Px6YjimUVJ3qyf78tMk5kL4sD2CGJlG871MTZFZFVWC+6df4fApeulWSVhtBZK2qYy UI04iL/LNqwWfHfGfIJLa5xde5D/6EIVOKhW8xmYdRqG0hSIoXAPaT69WnW40l/Yz0 Vy+anCIK/AnSktEacdFkzptTcGHU5wTjSlNaJrEwEJD9jzO98b0cPJVafPi6VnmUw6 xeVMlskKehpPQ== X-Mailer: emacs 31.1 (via feedmail 11-beta-1 I) From: Aneesh Kumar K.V To: Catalin Marinas Cc: linux-coco@lists.linux.dev, kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, iommu@lists.linux.dev, Jason Gunthorpe , Marc Zyngier , Marek Szyprowski , Robin Murphy , Steven Price , Suzuki K Poulose , Thomas Gleixner , Will Deacon , Sumit Semwal , Christian K?nig Subject: Re: [PATCH v6 7/9] dma-buf: system_heap: Enforce shared-granule alignment for cc-shared buffers In-Reply-To: References: Date: Mon, 21 Sep 2026 12:27:35 +0530 Message-ID: MIME-Version: 1.0 Content-Type: text/plain X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Catalin Marinas writes: > First, none of the DMA-BUF maintainers have been cc'ed. It might be fine > for an RFC but this series got to version 6. We need their feedback. > > On Fri, Sep 04, 2026 at 04:04:50PM +0530, Aneesh Kumar K.V (Arm) wrote: >> The system heap can allocate buffers that are decrypted and shared with the [ ... 107 lines skipped ... ] > > You need to get a proper base so that Sashiko can review this series. I > ran it through Claude and the above is wrong to go to free_buffer which > walks over the pages list that has not been initialised yet. > There is a dependency on the file-movement changes in the arm-smccc bus patch series. This was done because we agreed to move the RSI changes out of arch/arm64 before considering further CCA-related changes for merging. Do you have any suggestions on how to handle this? I could include the dependent patches when posting the new series so that Sashiko has a base on which to apply it, and clearly mark those patches as not for merging. -aneesh