From patchwork Wed Jan 8 20:05:19 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krzysztof Kozlowski X-Patchwork-Id: 11324441 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 5852C1580 for ; Wed, 8 Jan 2020 20:05:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 373092072A for ; Wed, 8 Jan 2020 20:05:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578513948; bh=7+a0M4QeXOG9b8lMwdfVaJAPohBMh++kbzQxdvukK48=; h=From:To:Subject:Date:List-ID:From; b=Jg5v7s4ZTSAa7/N6H3qvJWWCP3xIqBp4WPPTZ/D73//0hVFuDReWKRLaccWlOAVzR 8uuWlLDWIaf3jdM7TdDwaPSkoybpqpH4/DKXI7sD8FEyiDshtsjnqOZiCqI7Rg2Cxm hTfhE/6Lit/nAcX2XqeviJjYq2izaBut+n3sc2Ng= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726212AbgAHUFr (ORCPT ); Wed, 8 Jan 2020 15:05:47 -0500 Received: from mail.kernel.org ([198.145.29.99]:58198 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725835AbgAHUFr (ORCPT ); Wed, 8 Jan 2020 15:05:47 -0500 Received: from localhost.localdomain (unknown [83.218.167.187]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 4D70120705; Wed, 8 Jan 2020 20:05:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578513946; bh=7+a0M4QeXOG9b8lMwdfVaJAPohBMh++kbzQxdvukK48=; h=From:To:Subject:Date:From; b=evYOx5KdUdG0Jr/Vc38MOswPxNnF7vRlb4Tb199FZpqwnzGTIvL+ezoR/DMzbuceA kFY/nO2cZ4Rz6kmSrTr6FWXXDO9kMP2CReYBBlel+BAJjwJUXV7GF+gCcHoo1B+vS3 sn9Be5nqVhaTYIYYOT8RQp0qbzzYGBxIewpxHquo= From: Krzysztof Kozlowski To: Richard Henderson , Ivan Kokshaysky , Matt Turner , Alexey Brodkin , Vineet Gupta , "James E.J. Bottomley" , Helge Deller , Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , Yoshinori Sato , Rich Felker , Dave Airlie , David Airlie , Daniel Vetter , Ben Skeggs , Mauro Carvalho Chehab , Jiri Slaby , Nick Kossifidis , Luis Chamberlain , Kalle Valo , "David S. Miller" , Dave Jiang , Jon Mason , Allen Hubbe , "Michael S. Tsirkin" , Jason Wang , Arnd Bergmann , Krzysztof Kozlowski , Geert Uytterhoeven , Thomas Gleixner , linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-sh@vger.kernel.org, dri-devel@lists.freedesktop.org, nouveau@lists.freedesktop.org, linux-media@vger.kernel.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, linux-ntb@googlegroups.com, virtualization@lists.linux-foundation.org, linux-arch@vger.kernel.org Subject: [PATCH v2 0/9] iomap: Constify ioreadX() iomem argument Date: Wed, 8 Jan 2020 21:05:19 +0100 Message-Id: <20200108200528.4614-1-krzk@kernel.org> X-Mailer: git-send-email 2.17.1 Sender: linux-sh-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org Hi, Changes since v1 ================ https://lore.kernel.org/lkml/1578415992-24054-1-git-send-email-krzk@kernel.org/ 1. Constify also ioreadX_rep() and mmio_insX(), 2. Squash lib+alpha+powerpc+parisc+sh into one patch for bisectability, 3. Add Geert's review, 4. Re-order patches so all optional driver changes are at the end. Description =========== The ioread8/16/32() and others have inconsistent interface among the architectures: some taking address as const, some not. It seems there is nothing really stopping all of them to take pointer to const. Patchset was not really tested on all affected architectures. Build testing is in progress - I hope auto-builders will point any issues. volatile ======== There is still interface inconsistency between architectures around "volatile" qualifier: - include/asm-generic/io.h:static inline u32 ioread32(const volatile void __iomem *addr) - include/asm-generic/iomap.h:extern unsigned int ioread32(const void __iomem *); This is still discussed and out of scope of this patchset. Merging ======= Multiple architectures are affected in first patch so acks are welcomed. Patches 2-4 depend on first patch. The rest is optional cleanup, without actual impact. Best regards, Krzysztof Krzysztof Kozlowski (9): iomap: Constify ioreadX() iomem argument (as in generic implementation) net: wireless: rtl818x: Constify ioreadX() iomem argument (as in generic implementation) ntb: intel: Constify ioreadX() iomem argument (as in generic implementation) virtio: pci: Constify ioreadX() iomem argument (as in generic implementation) arc: Constify ioreadX() iomem argument (as in generic implementation) drm/mgag200: Constify ioreadX() iomem argument (as in generic implementation) drm/nouveau: Constify ioreadX() iomem argument (as in generic implementation) media: fsl-viu: Constify ioreadX() iomem argument (as in generic implementation) net: wireless: ath5k: Constify ioreadX() iomem argument (as in generic implementation) arch/alpha/include/asm/core_apecs.h | 6 +- arch/alpha/include/asm/core_cia.h | 6 +- arch/alpha/include/asm/core_lca.h | 6 +- arch/alpha/include/asm/core_marvel.h | 4 +- arch/alpha/include/asm/core_mcpcia.h | 6 +- arch/alpha/include/asm/core_t2.h | 2 +- arch/alpha/include/asm/io.h | 12 ++-- arch/alpha/include/asm/io_trivial.h | 16 ++--- arch/alpha/include/asm/jensen.h | 2 +- arch/alpha/include/asm/machvec.h | 6 +- arch/alpha/kernel/core_marvel.c | 2 +- arch/alpha/kernel/io.c | 12 ++-- arch/arc/plat-axs10x/axs10x.c | 4 +- arch/parisc/include/asm/io.h | 4 +- arch/parisc/lib/iomap.c | 72 +++++++++---------- arch/powerpc/kernel/iomap.c | 28 ++++---- arch/sh/kernel/iomap.c | 22 +++--- drivers/gpu/drm/mgag200/mgag200_drv.h | 4 +- drivers/gpu/drm/nouveau/nouveau_bo.c | 2 +- drivers/media/platform/fsl-viu.c | 2 +- drivers/net/wireless/ath/ath5k/ahb.c | 10 +-- .../realtek/rtl818x/rtl8180/rtl8180.h | 6 +- drivers/ntb/hw/intel/ntb_hw_gen1.c | 2 +- drivers/ntb/hw/intel/ntb_hw_gen3.h | 2 +- drivers/ntb/hw/intel/ntb_hw_intel.h | 2 +- drivers/virtio/virtio_pci_modern.c | 6 +- include/asm-generic/iomap.h | 28 ++++---- include/linux/io-64-nonatomic-hi-lo.h | 4 +- include/linux/io-64-nonatomic-lo-hi.h | 4 +- lib/iomap.c | 30 ++++---- 30 files changed, 156 insertions(+), 156 deletions(-)