Under a minimalist configuration, it is possible for i915 to include vgaarb.h without including any pci header before hand. Silence the compiler by providing an opaque forward declaration of 'struct pci_dev'
In file included from drivers/gpu/drm/i915/intel_display.c:33:0: include/linux/vgaarb.h:66:9: warning: ‘struct pci_dev’ declared inside parameter list [enabled by default] include/linux/vgaarb.h:66:9: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default] include/linux/vgaarb.h:97:27: warning: ‘struct pci_dev’ declared inside parameter list [enabled by default] include/linux/vgaarb.h:109:6: warning: ‘struct pci_dev’ declared inside parameter list [enabled by default] include/linux/vgaarb.h: In function ‘vga_get_interruptible’: include/linux/vgaarb.h:111:8: warning: passing argument 1 of ‘vga_get’ from incompatible pointer type [enabled by default] include/linux/vgaarb.h:97:12: note: expected ‘struct pci_dev *’ but argument is of type ‘struct pci_dev *’ include/linux/vgaarb.h: At top level: include/linux/vgaarb.h:121:8: warning: ‘struct pci_dev’ declared inside parameter list [enabled by default] include/linux/vgaarb.h: In function ‘vga_get_uninterruptible’: include/linux/vgaarb.h:123:8: warning: passing argument 1 of ‘vga_get’ from incompatible pointer type [enabled by default] include/linux/vgaarb.h:97:12: note: expected ‘struct pci_dev *’ but argument is of type ‘struct pci_dev *’ include/linux/vgaarb.h: At top level: include/linux/vgaarb.h:138:30: warning: ‘struct pci_dev’ declared inside parameter list [enabled by default] include/linux/vgaarb.h:157:28: warning: ‘struct pci_dev’ declared inside parameter list [enabled by default]
Signed-off-by: Chris Wilson chris@chris-wilson.co.uk --- include/linux/vgaarb.h | 1 + 1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/include/linux/vgaarb.h b/include/linux/vgaarb.h index 9c3120d..ddfb941 100644 --- a/include/linux/vgaarb.h +++ b/include/linux/vgaarb.h @@ -31,6 +31,7 @@ #ifndef LINUX_VGA_H #define LINUX_VGA_H
+struct pci_dev;
/* Legacy VGA regions */ #define VGA_RSRC_NONE 0x00