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fb_is_primary_device() is defined as a global function on x86, unlike the others that have an inline version. The file that defines is however needs to include the declaration to avoid a warning: arch/x86/video/fbdev.c:14:5: error: no previous prototype for 'fb_is_primary_device' [-Werror=missing-prototypes] Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com> Link: https://lore.kernel.org/all/20230516193549.544673-15-arnd%40kernel.org
42 lines
894 B
C
42 lines
894 B
C
/*
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* Copyright (C) 2007 Antonino Daplas <adaplas@gmail.com>
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file COPYING in the main directory of this archive
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* for more details.
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*
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*/
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#include <linux/fb.h>
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#include <linux/pci.h>
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#include <linux/module.h>
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#include <linux/vgaarb.h>
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#include <asm/fb.h>
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int fb_is_primary_device(struct fb_info *info)
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{
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struct device *device = info->device;
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struct pci_dev *default_device = vga_default_device();
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struct pci_dev *pci_dev;
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struct resource *res;
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if (!device || !dev_is_pci(device))
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return 0;
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pci_dev = to_pci_dev(device);
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if (default_device) {
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if (pci_dev == default_device)
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return 1;
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return 0;
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}
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res = pci_dev->resource + PCI_ROM_RESOURCE;
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if (res->flags & IORESOURCE_ROM_SHADOW)
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return 1;
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return 0;
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}
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EXPORT_SYMBOL(fb_is_primary_device);
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MODULE_LICENSE("GPL");
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