linux-kernel - [PATCH 04/17] pci: sysfs: move declarations to linux/pci.h

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Date:   Thu, 10 Aug 2023 16:19:22 +0200
From:   Arnd Bergmann <arnd@...nel.org>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        linux-kernel@...r.kernel.org,
        Richard Henderson <richard.henderson@...aro.org>,
        Ivan Kokshaysky <ink@...assic.park.msu.ru>,
        Matt Turner <mattst88@...il.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Thomas Gleixner <tglx@...utronix.de>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Kuppuswamy Sathyanarayanan 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        Reinette Chatre <reinette.chatre@...el.com>,
        Ira Weiny <ira.weiny@...el.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        "Ahmed S. Darwish" <darwi@...utronix.de>,
        Sami Tolvanen <samitolvanen@...gle.com>,
        linux-alpha@...r.kernel.org, linux-pci@...r.kernel.org
Subject: [PATCH 04/17] pci: sysfs: move declarations to linux/pci.h

From: Arnd Bergmann <arnd@...db.de>

A couple of architectures build the __weak versions of
pci_create_resource_files() and pci_remove_resource_files() but don't
have prototypes for these, which causes warnings:

drivers/pci/pci-sysfs.c:1253:12: error: no previous prototype for 'pci_create_resource_files' [-Werror=missing-prototypes]
 1253 | int __weak pci_create_resource_files(struct pci_dev *dev) { return 0; }
drivers/pci/pci-sysfs.c:1254:13: error: no previous prototype for 'pci_remove_resource_files' [-Werror=missing-prototypes]
 1254 | void __weak pci_remove_resource_files(struct pci_dev *dev) { return; }

Move the prototypes from alpha architecture into the global header to
avoid these warnings for all of them.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 arch/alpha/include/asm/pci.h | 3 ---
 include/linux/pci.h          | 5 +++++
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/alpha/include/asm/pci.h b/arch/alpha/include/asm/pci.h
index 6312656279d79..6c04fcbdc8ed2 100644
--- a/arch/alpha/include/asm/pci.h
+++ b/arch/alpha/include/asm/pci.h
@@ -88,7 +88,4 @@ extern void pci_adjust_legacy_attr(struct pci_bus *bus,
 				   enum pci_mmap_state mmap_type);
 #define HAVE_PCI_LEGACY	1
 
-extern int pci_create_resource_files(struct pci_dev *dev);
-extern void pci_remove_resource_files(struct pci_dev *dev);
-
 #endif /* __ALPHA_PCI_H */
diff --git a/include/linux/pci.h b/include/linux/pci.h
index eeb2e6f6130f4..198a399c4b792 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -2260,6 +2260,11 @@ int pcibios_alloc_irq(struct pci_dev *dev);
 void pcibios_free_irq(struct pci_dev *dev);
 resource_size_t pcibios_default_alignment(void);
 
+#if !defined(HAVE_PCI_MMAP) && !defined(ARCH_GENERIC_PCI_MMAP_RESOURCE)
+extern int pci_create_resource_files(struct pci_dev *dev);
+extern void pci_remove_resource_files(struct pci_dev *dev);
+#endif
+
 #if defined(CONFIG_PCI_MMCONFIG) || defined(CONFIG_ACPI_MCFG)
 void __init pci_mmcfg_early_init(void);
 void __init pci_mmcfg_late_init(void);
-- 
2.39.2