From patchwork Wed Feb 19 17:50:02 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krzysztof Kozlowski X-Patchwork-Id: 210835 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 26E55C34056 for ; Wed, 19 Feb 2020 17:51:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0010B206DB for ; Wed, 19 Feb 2020 17:51:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1582134710; bh=GncZJES9Pi+VGkKtqPts7U7bz/5zDiGW+ajpMZK1gUg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=nrByreRWCC15E8SX5nObY0CEUkNMZykCRno9apcJd+d9Izja6DGPF24OTV7sCdLQf IqtLpi/cu6JkBlH2QOR07KdLu/8GDq8KNbv7tqXH44rYojWEo0lrjVSWnNJcqg8+tB +5qxxTch58ZIMobPNTc7awReMPhEBmMmYUT3uKAs= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726648AbgBSRvt (ORCPT ); Wed, 19 Feb 2020 12:51:49 -0500 Received: from mail.kernel.org ([198.145.29.99]:51016 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726634AbgBSRvt (ORCPT ); Wed, 19 Feb 2020 12:51:49 -0500 Received: from localhost.localdomain (unknown [194.230.155.125]) (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 0A50C2467A; Wed, 19 Feb 2020 17:51:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1582134708; bh=GncZJES9Pi+VGkKtqPts7U7bz/5zDiGW+ajpMZK1gUg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Nps+RvDLKubC92VpmGQNWlndGFmfjWMGeb/g/eNgFR+xzszyfLi3xXawp++hyqb4m ORI6JWrkg6Q0W5ZsjhcSlCeeWNf6wixSeJxFI9h33iYowSawPTurEgX2Wj3C+53d5H P0IAjNbkxQCAyEjUuRHhnl2u9svOTEBYnry5h4XA= 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 , Geert Uytterhoeven , Andrew Morton , 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 Cc: Krzysztof Kozlowski Subject: [RESEND PATCH v2 4/9] virtio: pci: Constify ioreadX() iomem argument (as in generic implementation) Date: Wed, 19 Feb 2020 18:50:02 +0100 Message-Id: <20200219175007.13627-5-krzk@kernel.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200219175007.13627-1-krzk@kernel.org> References: <20200219175007.13627-1-krzk@kernel.org> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org The ioreadX() helpers have inconsistent interface. On some architectures void *__iomem address argument is a pointer to const, on some not. Implementations of ioreadX() do not modify the memory under the address so they can be converted to a "const" version for const-safety and consistency among architectures. Signed-off-by: Krzysztof Kozlowski Reviewed-by: Geert Uytterhoeven --- Changes since v1: 1. Add Geert's review. --- drivers/virtio/virtio_pci_modern.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/virtio/virtio_pci_modern.c b/drivers/virtio/virtio_pci_modern.c index 7abcc50838b8..fc58db4ab6c3 100644 --- a/drivers/virtio/virtio_pci_modern.c +++ b/drivers/virtio/virtio_pci_modern.c @@ -26,16 +26,16 @@ * method, i.e. 32-bit accesses for 32-bit fields, 16-bit accesses * for 16-bit fields and 8-bit accesses for 8-bit fields. */ -static inline u8 vp_ioread8(u8 __iomem *addr) +static inline u8 vp_ioread8(const u8 __iomem *addr) { return ioread8(addr); } -static inline u16 vp_ioread16 (__le16 __iomem *addr) +static inline u16 vp_ioread16 (const __le16 __iomem *addr) { return ioread16(addr); } -static inline u32 vp_ioread32(__le32 __iomem *addr) +static inline u32 vp_ioread32(const __le32 __iomem *addr) { return ioread32(addr); }