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[188.32.48.208]) by smtp.googlemail.com with ESMTPSA id z17sm12395917ljc.37.2019.07.28.13.23.12 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 28 Jul 2019 13:23:12 -0700 (PDT) From: Denis Efremov To: Bjorn Helgaas Cc: Denis Efremov , "David S. Miller" , "Benjamin Herrenschmidt" , Paul Mackerras , Michael Ellerman , Ralf Baechle , Paul Burton , James Hogan , Michal Simek , linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, sparclinux@vger.kernel.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/5] PCI: Convert pci_resource_to_user to a weak function Date: Sun, 28 Jul 2019 23:22:09 +0300 Message-Id: <20190728202213.15550-2-efremov@linux.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190728202213.15550-1-efremov@linux.com> References: <20190728202213.15550-1-efremov@linux.com> MIME-Version: 1.0 Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The patch turns pci_resource_to_user() to a weak function. Thus, architecture-specific versions will automatically override the generic one. This allows to remove the HAVE_ARCH_PCI_RESOURCE_TO_USER macro and avoid the conditional compilation for this single function. Signed-off-by: Denis Efremov --- drivers/pci/pci.c | 8 ++++++++ include/linux/pci.h | 18 +++--------------- 2 files changed, 11 insertions(+), 15 deletions(-) diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 29ed5ec1ac27..f9dc7563a8b9 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -5932,6 +5932,14 @@ resource_size_t __weak pcibios_default_alignment(void) return 0; } +void __weak pci_resource_to_user(const struct pci_dev *dev, int bar, + const struct resource *rsrc, resource_size_t *start, + resource_size_t *end) +{ + *start = rsrc->start; + *end = rsrc->end; +} + #define RESOURCE_ALIGNMENT_PARAM_SIZE COMMAND_LINE_SIZE static char resource_alignment_param[RESOURCE_ALIGNMENT_PARAM_SIZE] = {0}; static DEFINE_SPINLOCK(resource_alignment_lock); diff --git a/include/linux/pci.h b/include/linux/pci.h index 9e700d9f9f28..1a19d0151b0a 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1870,25 +1870,13 @@ static inline const char *pci_name(const struct pci_dev *pdev) return dev_name(&pdev->dev); } - /* * Some archs don't want to expose struct resource to userland as-is * in sysfs and /proc */ -#ifdef HAVE_ARCH_PCI_RESOURCE_TO_USER -void pci_resource_to_user(const struct pci_dev *dev, int bar, - const struct resource *rsrc, - resource_size_t *start, resource_size_t *end); -#else -static inline void pci_resource_to_user(const struct pci_dev *dev, int bar, - const struct resource *rsrc, resource_size_t *start, - resource_size_t *end) -{ - *start = rsrc->start; - *end = rsrc->end; -} -#endif /* HAVE_ARCH_PCI_RESOURCE_TO_USER */ - +void __weak pci_resource_to_user(const struct pci_dev *dev, int bar, + const struct resource *rsrc, + resource_size_t *start, resource_size_t *end); /* * The world is not perfect and supplies us with broken PCI devices.