From patchwork Tue Jan 7 16:53:05 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krzysztof Kozlowski X-Patchwork-Id: 11321313 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 F1894139A for ; Tue, 7 Jan 2020 16:54:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CC715222D9 for ; Tue, 7 Jan 2020 16:54:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578416082; bh=pyS3wZ02TYoQQFrhCaT28XntjPpq/hHYDQKnecGVi1c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=dauhnhbCiHz96lj6huEQq8wZ28WHdY/DKtFV/UY8Eahw+oRi9FeQkeoBTC5p5N+t6 rg4TYU9Zvj9YMlqYjvUpsyPumiiAwL7BTXXrdtbHUzku1evfWVvjfrLHQvHG4ghp0p J90coMchDh1fWRAs5hROkoOtpUAw5UUxYaFC270I= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728451AbgAGQym (ORCPT ); Tue, 7 Jan 2020 11:54:42 -0500 Received: from mail.kernel.org ([198.145.29.99]:42320 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728391AbgAGQym (ORCPT ); Tue, 7 Jan 2020 11:54:42 -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 4E4BC24676; Tue, 7 Jan 2020 16:54:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578416081; bh=pyS3wZ02TYoQQFrhCaT28XntjPpq/hHYDQKnecGVi1c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MyjPtgApzAeWBBxzp9EQBWQXZ+iwA999spRine79c7OM4lsnSPBUGIGrBr9MZxl+K qVZbWWFCLhelBQoFuIPPOarD6WgO7KDyfRquNgQ3rTLR4Z1FvS7QTS1zTSCX5JmiYr znxaQdgOb6csvJ/r8Qjz1jvr9IFWhhb4LsApylCQ= 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 06/13] arc: Constify ioreadX() iomem argument (as in generic implementation) Date: Tue, 7 Jan 2020 17:53:05 +0100 Message-Id: <1578415992-24054-9-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-parisc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-parisc@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 --- arch/arc/plat-axs10x/axs10x.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arc/plat-axs10x/axs10x.c b/arch/arc/plat-axs10x/axs10x.c index 63ea5a606ecd..180c260a8221 100644 --- a/arch/arc/plat-axs10x/axs10x.c +++ b/arch/arc/plat-axs10x/axs10x.c @@ -84,7 +84,7 @@ static void __init axs10x_print_board_ver(unsigned int creg, const char *str) unsigned int val; } board; - board.val = ioread32((void __iomem *)creg); + board.val = ioread32((const void __iomem *)creg); pr_info("AXS: %s FPGA Date: %u-%u-%u\n", str, board.d, board.m, board.y); } @@ -95,7 +95,7 @@ static void __init axs10x_early_init(void) char mb[32]; /* Determine motherboard version */ - if (ioread32((void __iomem *) CREG_MB_CONFIG) & (1 << 28)) + if (ioread32((const void __iomem *) CREG_MB_CONFIG) & (1 << 28)) mb_rev = 3; /* HT-3 (rev3.0) */ else mb_rev = 2; /* HT-2 (rev2.0) */