From patchwork Tue Jan 7 16:53:12 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krzysztof Kozlowski X-Patchwork-Id: 11321393 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 9CBFA1580 for ; Tue, 7 Jan 2020 16:55:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 781F42467A for ; Tue, 7 Jan 2020 16:55:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578416144; bh=zdByYEGMS3ESVQ5qOHN1kIYsWdU38BLlIlo+0ZPdrE4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=IVvhaOx02q3yDekJTnBbUJP6jqZCssCU8cC8AM1QTtzJvU8dQ/KrxOXxqR7lP7nWC NLwOTu2723bSf//Y3zwFujD9oFam5WqOh6EDS+NSDzn5eup1V5lx/B26imLR5AA42I EmM9ZbGJCuUv5WL2FWirwYkcF+ArsXUBC/auR8Ow= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728788AbgAGQzo (ORCPT ); Tue, 7 Jan 2020 11:55:44 -0500 Received: from mail.kernel.org ([198.145.29.99]:44234 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728391AbgAGQzn (ORCPT ); Tue, 7 Jan 2020 11:55:43 -0500 Received: from PC-kkoz.proceq.com (unknown [213.160.61.66]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 4236B2467F; Tue, 7 Jan 2020 16:55:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578416142; bh=zdByYEGMS3ESVQ5qOHN1kIYsWdU38BLlIlo+0ZPdrE4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=B9XX5z37aO9kO6TkoMZBWRljecz6mxaLsnUJweo1Opz89I73sTah4aguq2M+qbAtk jJqm5ERlXNfIDH66LmWHTiUD9ISWyzlIjrcT5hLgLk+5mFBneKkY4HBIjWPl8jboDN drdv6nwNwT+gPU/NfUpzBRq4v5bgiFQUyIlD1qE4= 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 , Andrew Morton , Thomas Gleixner , Geert Uytterhoeven , 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: [RFT 13/13] virtio: pci: Constify ioreadX() iomem argument (as in generic implementation) Date: Tue, 7 Jan 2020 17:53:12 +0100 Message-Id: <1578415992-24054-16-git-send-email-krzk@kernel.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1578415992-24054-1-git-send-email-krzk@kernel.org> References: <1578415992-24054-1-git-send-email-krzk@kernel.org> Sender: linux-sh-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sh@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 --- 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); }