From patchwork Sun Nov 29 23:07:42 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= X-Patchwork-Id: 11939407 X-Patchwork-Delegate: lorenzo.pieralisi@arm.com 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 7F88CC71156 for ; Sun, 29 Nov 2020 23:08:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6539A22245 for ; Sun, 29 Nov 2020 23:08:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727991AbgK2XIf (ORCPT ); Sun, 29 Nov 2020 18:08:35 -0500 Received: from mail-wr1-f67.google.com ([209.85.221.67]:43275 "EHLO mail-wr1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726777AbgK2XIe (ORCPT ); Sun, 29 Nov 2020 18:08:34 -0500 Received: by mail-wr1-f67.google.com with SMTP id s8so13044292wrw.10 for ; Sun, 29 Nov 2020 15:08:18 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=Ff6pKCmLg5oT72OgCOHiIPYU12IbKoKvOXqEEVgg4cU=; b=BQSY1Wx1OF/kE0yEuF9Lx4nr2X8eBJWZTTBJxignI/KtQlrvbzEc+RZDzHwJTWEpKS 7VEcXjoF2LwbKMf3iV2PAKVJFNS0sMuc4KMJOohQOSlueRJnPU6YE67lqR1g/mxS/PAw pmi7DhhiPb9NZjRVVMHS62p9XJQ4EGNlJkWS4TxFeKhNIcn538aPD3RnN5BuwS1KRJeq eIcP4zbDzGW670X2HGemuGDyiSweERli4g02DjqF+NoYxf1sNArOvt0Bb8ahrGMIcenz szu4R8HZjJoMD0xKnBE2x+mrK2Q6c2aWOUdyTDAB50skbMF4qt4fvEGVyFd49ZyK3c1W 89OQ== X-Gm-Message-State: AOAM532fjcdOpk+iKv/VL8jedrsHPK3nm9e+JfLTxN6wANITCqqU2lB/ c+7qCdFdFgrJytuNeTIZKjM= X-Google-Smtp-Source: ABdhPJzHI72BcK2gh0kFjWjYjgwPhW5lYayUpFmk6eoZtDqknP6gOkv3hmwsP0YHAvHXiiV7ZOzodw== X-Received: by 2002:adf:f9c5:: with SMTP id w5mr24603230wrr.69.1606691272550; Sun, 29 Nov 2020 15:07:52 -0800 (PST) Received: from workstation.lan ([95.155.85.46]) by smtp.gmail.com with ESMTPSA id d2sm24831005wrn.43.2020.11.29.15.07.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 29 Nov 2020 15:07:52 -0800 (PST) From: =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= To: Bjorn Helgaas Cc: Rob Herring , Jonathan Cameron , Jonathan Chocron , Shawn Lin , Heiko Stuebner , Zhou Wang , Lorenzo Pieralisi , Will Deacon , Robert Richter , Michal Simek , Toan Le , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Thomas Petazzoni , Nicolas Saenz Julienne , Florian Fainelli , Ray Jui , Scott Branden , Jonathan Derrick , linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, linux-rockchip@lists.infradead.org, linux-rpi-kernel@lists.infradead.org, bcm-kernel-feedback-list@broadcom.com Subject: [PATCH v6 4/5] PCI: vmd: Update type of the __iomem pointers Date: Sun, 29 Nov 2020 23:07:42 +0000 Message-Id: <20201129230743.3006978-5-kw@linux.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201129230743.3006978-1-kw@linux.com> References: <20201129230743.3006978-1-kw@linux.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Use "void __iomem" instead "char __iomem" pointer type when working with the accessor functions (with names like readb() or writel(), etc.) to better match a given accessor function signature where commonly the address pointing to an I/O memory region would be a "void __iomem" pointer. Related: https://lwn.net/Articles/102232/ Suggested-by: Bjorn Helgaas Signed-off-by: Krzysztof Wilczyński Reviewed-by: Jon Derrick --- drivers/pci/controller/vmd.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/pci/controller/vmd.c b/drivers/pci/controller/vmd.c index 1361a79bd1e7..59fa9a94860f 100644 --- a/drivers/pci/controller/vmd.c +++ b/drivers/pci/controller/vmd.c @@ -95,7 +95,7 @@ struct vmd_dev { struct pci_dev *dev; spinlock_t cfg_lock; - char __iomem *cfgbar; + void __iomem *cfgbar; int msix_count; struct vmd_irq_list *irqs; @@ -326,7 +326,7 @@ static void vmd_remove_irq_domain(struct vmd_dev *vmd) } } -static char __iomem *vmd_cfg_addr(struct vmd_dev *vmd, struct pci_bus *bus, +static void __iomem *vmd_cfg_addr(struct vmd_dev *vmd, struct pci_bus *bus, unsigned int devfn, int reg, int len) { unsigned int busnr_ecam = bus->number - vmd->busn_start; @@ -346,7 +346,7 @@ static int vmd_pci_read(struct pci_bus *bus, unsigned int devfn, int reg, int len, u32 *value) { struct vmd_dev *vmd = vmd_from_bus(bus); - char __iomem *addr = vmd_cfg_addr(vmd, bus, devfn, reg, len); + void __iomem *addr = vmd_cfg_addr(vmd, bus, devfn, reg, len); unsigned long flags; int ret = 0; @@ -381,7 +381,7 @@ static int vmd_pci_write(struct pci_bus *bus, unsigned int devfn, int reg, int len, u32 value) { struct vmd_dev *vmd = vmd_from_bus(bus); - char __iomem *addr = vmd_cfg_addr(vmd, bus, devfn, reg, len); + void __iomem *addr = vmd_cfg_addr(vmd, bus, devfn, reg, len); unsigned long flags; int ret = 0;