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 202A5106B53F for ; Wed, 25 Mar 2026 13:58:16 +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-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=s5C26zCJLmThL5P9gL0eaNPwT8Ft4vwHwAr08kkFcwE=; b=2SXV9DmbOfQekmmXPj0mYTJ8X+ 84d52lXldpzo2WZuwn//pucpbbpYpHK/OmWG2oq1g8hf0uniLNmHN3XOQ5ddk68uLje41SshpWzWr T/EEk+84waoY0ri0TXvLh26UkjhYuKPBYeEzU7fTyc/bJ+7RlqxKizDqnv25BmWWRVA7zxjHlMTYP J9S06BrUp1gzqyhgz44snJtufJ5241u+wBReRjdkpLKgeUGWdQZzgXo2FsPLu9I5D4apkwvsJvjpF l5AJP2GhjyE0ekN4j/hIsupBmkHSZPEbRa5DzD7QUkQ02PrF8c8w7guNauLunEdoqa8igqkt77bMa Zuol4zbA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1w5OkN-00000003Va6-08ZS; Wed, 25 Mar 2026 13:58:11 +0000 Received: from tor.source.kernel.org ([172.105.4.254]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1w5OkK-00000003VZU-3Xo1; Wed, 25 Mar 2026 13:58:08 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id DF39C600C4; Wed, 25 Mar 2026 13:58:07 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 64A8AC4CEF7; Wed, 25 Mar 2026 13:57:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774447087; bh=KyjiwAokSYk7ozvT6M+V8CAJzdrqAh71WLKooyLlGIw=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=a/Isf1Nn7bbzilJ+WFOdPoPwPnR5v6LhxMrlFuBsyYg2XAwIEm2QemKRxXZjHN5Nu AChgjyjIk7vb33QJ6oLak9yHuJmn9pok4FzY118/Z+xhCYL9ZvqY/49+WryhvTm+9I H/uz07412nF3UDASUIjgPac3fueYVdb60S7vSKmq1WNoCwue6s87ja2S3Tsh5l+e3f 64SHJjpAkfwmhNBTPQZWk39ka/fPMUqC0l5Alm8rDrmCIyjXRQby1EnxD/KFHZR4nK FM9Uffh/ooy89oUPe3IV97KvalyzhwV1CHWkx0R4J2p9nJcR4wxJQ24/KPk84FZbM0 vIlUGx35sv7Jg== Message-ID: Date: Wed, 25 Mar 2026 14:57:57 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4 18/21] drivers: hv: vmbus: replace deprecated mmap hook with mmap_prepare Content-Language: en-US To: "Lorenzo Stoakes (Oracle)" , Andrew Morton Cc: Jonathan Corbet , Clemens Ladisch , Arnd Bergmann , Greg Kroah-Hartman , "K . Y . Srinivasan" , Haiyang Zhang , Wei Liu , Dexuan Cui , Long Li , Alexander Shishkin , Maxime Coquelin , Alexandre Torgue , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Bodo Stroesser , "Martin K . Petersen" , David Howells , Marc Dionne , Alexander Viro , Christian Brauner , Jan Kara , David Hildenbrand , "Liam R . Howlett" , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Jann Horn , Pedro Falcato , linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-hyperv@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-mtd@lists.infradead.org, linux-staging@lists.linux.dev, linux-scsi@vger.kernel.org, target-devel@vger.kernel.org, linux-afs@lists.infradead.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, Ryan Roberts References: <05467cb62267d750e5c770147517d4df0246cda6.1774045440.git.ljs@kernel.org> From: "Vlastimil Babka (SUSE)" In-Reply-To: <05467cb62267d750e5c770147517d4df0246cda6.1774045440.git.ljs@kernel.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit 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 On 3/20/26 23:39, Lorenzo Stoakes (Oracle) wrote: > The f_op->mmap interface is deprecated, so update the vmbus driver to use > its successor, mmap_prepare. > > This updates all callbacks which referenced the function pointer > hv_mmap_ring_buffer to instead reference hv_mmap_prepare_ring_buffer, > utilising the newly introduced compat_set_desc_from_vma() and > __compat_vma_mmap() to be able to implement this change. > > The UIO HV generic driver is the only user of hv_create_ring_sysfs(), > which is the only function which references > vmbus_channel->mmap_prepare_ring_buffer which, in turn, is the only > external interface to hv_mmap_prepare_ring_buffer. > > This patch therefore updates this caller to use mmap_prepare instead, > which also previously used vm_iomap_memory(), so this change replaces it > with its mmap_prepare equivalent, mmap_action_simple_ioremap(). > > Signed-off-by: Lorenzo Stoakes (Oracle) Acked-by: Vlastimil Babka (SUSE)