From patchwork Wed Jan 8 20:05:26 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krzysztof Kozlowski X-Patchwork-Id: 11324523 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 2A4CE6C1 for ; Wed, 8 Jan 2020 20:06:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0949F2070E for ; Wed, 8 Jan 2020 20:06:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578514018; bh=4G9U4hbwpjc43HA1VaCSm2knWdxpECK/Qm3J7uuyiGY=; h=From:To:Subject:Date:In-Reply-To:References:List-ID:From; b=TNqG6sbyMvPZsd3HOm5raAzfQdA9NMA7RizW62CGWP96r8JMfFqv96axGpQNkxQXa LiQVWp9Pk+R6LvXWplaBQKH6p/3mKISUgKahRPxkF93D1Iq83u1DANaUYuA9qcaglv YyRhZ+9bof1QvCiaLLuqe0T6FmyrGKSbepav2GW4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727299AbgAHUGw (ORCPT ); Wed, 8 Jan 2020 15:06:52 -0500 Received: from mail.kernel.org ([198.145.29.99]:60788 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727052AbgAHUGv (ORCPT ); Wed, 8 Jan 2020 15:06:51 -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 186642084D; Wed, 8 Jan 2020 20:06:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578514010; bh=4G9U4hbwpjc43HA1VaCSm2knWdxpECK/Qm3J7uuyiGY=; h=From:To:Subject:Date:In-Reply-To:References:From; b=L0JByfH82fI10MazHw+qyYQZ7ZEaLpg6nJdjXcllD8SsyRut9af5aObLYz9vOIvHH D+1E4n3QQA3rcx3fqbrfPWnXhadJS6dDc8TIg4sQEYfba1RBaB2QbsYG+DNHUeblja AQPDxweWn1lMMwEPz4YtSI/zKx8892RAcVGsp3t8= 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 7/9] drm/nouveau: Constify ioreadX() iomem argument (as in generic implementation) Date: Wed, 8 Jan 2020 21:05:26 +0100 Message-Id: <20200108200528.4614-8-krzk@kernel.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200108200528.4614-1-krzk@kernel.org> References: <20200108200528.4614-1-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/gpu/drm/nouveau/nouveau_bo.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c index f8015e0318d7..5120d062c2df 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bo.c +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c @@ -613,7 +613,7 @@ nouveau_bo_rd32(struct nouveau_bo *nvbo, unsigned index) mem += index; if (is_iomem) - return ioread32_native((void __force __iomem *)mem); + return ioread32_native((const void __force __iomem *)mem); else return *mem; }