From patchwork Fri Jun 24 15:52:23 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 12894803 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D6E68C433EF for ; Fri, 24 Jun 2022 15:52:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229996AbiFXPwj (ORCPT ); Fri, 24 Jun 2022 11:52:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55094 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231300AbiFXPwj (ORCPT ); Fri, 24 Jun 2022 11:52:39 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1F42F50003; Fri, 24 Jun 2022 08:52:38 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id CA677B8293E; Fri, 24 Jun 2022 15:52:36 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2D7BCC341D6; Fri, 24 Jun 2022 15:52:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1656085955; bh=z0VIW50hHPorhgqCOjEj4pIbQj4gKEKNY/gMJ41P6tw=; h=From:To:Cc:Subject:Date:From; b=NEolLau7ihjMHKnysJJTyokDl06zDeTXySMwLvr7vqyVI0L6Nc0fQCjHbkY/zj8Iu G2xCgk13FrCQJFnP5wiJ9Plh24nPNake3VPaJ1jDX0SfVpT9BIR9P7BzlET5GnVu0W 009KSRMprpkQXnDutZG8Vhd4dNM7gMIfiiiyFoLXJNioKUth+KVJbGuJv4bMy2eIWh g2BS1YRav2MMUWz7FNWsJdXmZpYZG7C1JSg0xkJF59/7egI/0vitb0b/H0jl0xQrd5 emKVPOJRccRvz/AglHixFGdOa6q3Xd8SkI34jYzxj1PQZQcHcG8LCmScMy/HfqyGiu Kk4iuiK7m3XBw== From: Arnd Bergmann To: linux-scsi@vger.kernel.org Cc: Arnd Bergmann , Jakub Kicinski , Christoph Hellwig , Marek Szyprowski , Robin Murphy , iommu@lists.linux-foundation.org, Khalid Aziz , "Maciej W . Rozycki" , Matt Wang , Miquel van Smoorenburg , Mark Salyzyn , linuxppc-dev@lists.ozlabs.org, linux-arch@vger.kernel.org, linux-alpha@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-parisc@vger.kernel.org, Denis Efremov Subject: [PATCH v3 0/3] phase out CONFIG_VIRT_TO_BUS Date: Fri, 24 Jun 2022 17:52:23 +0200 Message-Id: <20220624155226.2889613-1-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-parisc@vger.kernel.org From: Arnd Bergmann The virt_to_bus/bus_to_virt interface has been deprecated for decades. After Jakub Kicinski put a lot of work into cleaning out the network drivers using them, there are only a couple of other drivers left, which can all be removed or otherwise cleaned up, to remove the old interface for good. Any out of tree drivers using virt_to_bus() should be converted to using the dma-mapping interfaces, typically dma_alloc_coherent() or dma_map_single()). There are a few m68k and ppc32 specific drivers that keep using the interfaces, but these are all guarded with architecture-specific Kconfig dependencies, and are not actually broken. It might be helpful as a follow-up to replace them with platform specific helpers for amiga, m68k-vme and powermac. There are still a number of drivers that are using virt_to_phys() and phys_to_virt() in place of dma-mapping operations, and these are often broken, but they are out of scope for this series. If there are no more issues identified with this series, I'll merge it through the asm-generic tree. The SCSI patches can also get merged separately through the SCSI maintainers' tree if they prefer. Arnd --- Changes since v2: - Drop the dpt_i2o driver completely rather than fixing it - fix mistake in BusLogic patch Changes since v1: - dropped VME patches that are already in staging-next - dropped media patch that gets merged independently - added a networking patch and dropped it again after it got merged - replace BusLogic removal with a workaround Cc: Jakub Kicinski Cc: Christoph Hellwig # dma-mapping Cc: Marek Szyprowski # dma-mapping Cc: Robin Murphy # dma-mapping Cc: iommu@lists.linux-foundation.org Cc: Khalid Aziz # buslogic Cc: Maciej W. Rozycki # buslogic Cc: Matt Wang # buslogic Cc: Miquel van Smoorenburg # dpt_i2o Cc: Mark Salyzyn # dpt_i2o Cc: linux-scsi@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-arch@vger.kernel.org Cc: linux-alpha@vger.kernel.org Cc: linux-m68k@lists.linux-m68k.org Cc: linux-parisc@vger.kernel.org Cc: Denis Efremov # floppy Arnd Bergmann (3): scsi: BusLogic remove bus_to_virt scsi: dpt_i2o: remove obsolete driver arch/*/: remove CONFIG_VIRT_TO_BUS .../core-api/bus-virt-phys-mapping.rst | 220 - Documentation/core-api/dma-api-howto.rst | 14 - Documentation/core-api/index.rst | 1 - .../translations/zh_CN/core-api/index.rst | 1 - .../userspace-api/ioctl/ioctl-number.rst | 2 +- MAINTAINERS | 8 - arch/alpha/Kconfig | 1 - arch/alpha/include/asm/floppy.h | 2 +- arch/alpha/include/asm/io.h | 8 +- arch/ia64/Kconfig | 1 - arch/ia64/include/asm/io.h | 8 - arch/m68k/Kconfig | 1 - arch/m68k/include/asm/virtconvert.h | 4 +- arch/microblaze/Kconfig | 1 - arch/microblaze/include/asm/io.h | 2 - arch/mips/Kconfig | 1 - arch/mips/include/asm/io.h | 9 - arch/parisc/Kconfig | 1 - arch/parisc/include/asm/floppy.h | 4 +- arch/parisc/include/asm/io.h | 2 - arch/powerpc/Kconfig | 1 - arch/powerpc/include/asm/io.h | 2 - arch/riscv/include/asm/page.h | 1 - arch/x86/Kconfig | 1 - arch/x86/include/asm/io.h | 9 - arch/xtensa/Kconfig | 1 - arch/xtensa/include/asm/io.h | 3 - drivers/scsi/BusLogic.c | 35 +- drivers/scsi/Kconfig | 13 +- drivers/scsi/Makefile | 1 - drivers/scsi/dpt/dpti_i2o.h | 441 -- drivers/scsi/dpt/dpti_ioctl.h | 136 - drivers/scsi/dpt/dptsig.h | 336 -- drivers/scsi/dpt/osd_defs.h | 79 - drivers/scsi/dpt/osd_util.h | 358 -- drivers/scsi/dpt/sys_info.h | 417 -- drivers/scsi/dpt_i2o.c | 3546 ----------------- drivers/scsi/dpti.h | 331 -- include/asm-generic/io.h | 14 - mm/Kconfig | 8 - 40 files changed, 35 insertions(+), 5989 deletions(-) delete mode 100644 Documentation/core-api/bus-virt-phys-mapping.rst delete mode 100644 drivers/scsi/dpt/dpti_i2o.h delete mode 100644 drivers/scsi/dpt/dpti_ioctl.h delete mode 100644 drivers/scsi/dpt/dptsig.h delete mode 100644 drivers/scsi/dpt/osd_defs.h delete mode 100644 drivers/scsi/dpt/osd_util.h delete mode 100644 drivers/scsi/dpt/sys_info.h delete mode 100644 drivers/scsi/dpt_i2o.c delete mode 100644 drivers/scsi/dpti.h