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Message-ID: <20230810143834.GA29233@bhelgaas>
Date:   Thu, 10 Aug 2023 09:38:34 -0500
From:   Bjorn Helgaas <helgaas@...nel.org>
To:     Arnd Bergmann <arnd@...nel.org>
Cc:     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>,
        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: Re: [PATCH 04/17] pci: sysfs: move declarations to linux/pci.h

On Thu, Aug 10, 2023 at 04:19:22PM +0200, Arnd Bergmann wrote:
> 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>

Applied to pci/misc for v6.6, thanks!

> ---
>  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
> 

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