[PATCH] efi: sysfb_efi: fix build when EFI is not set

[Randy Dunlap]

When # CONFIG_EFI is not set, there are 2 definitions of
sysfb_apply_efi_quirks(). The stub from sysfb.h should be used
and the __init function from sysfb_efi.c should not be used.

../drivers/firmware/efi/sysfb_efi.c:337:13: error: redefinition of ‘sysfb_apply_efi_quirks’
 __init void sysfb_apply_efi_quirks(struct platform_device *pd)
             ^~~~~~~~~~~~~~~~~~~~~~
In file included from ../drivers/firmware/efi/sysfb_efi.c:26:0:
../include/linux/sysfb.h:65:20: note: previous definition of ‘sysfb_apply_efi_quirks’ was here
 static inline void sysfb_apply_efi_quirks(struct platform_device *pd)
                    ^~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: Ard Biesheuvel <ardb@xxxxxxxxxx>
Cc: linux-efi@xxxxxxxxxxxxxxx
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
Cc: Javier Martinez Canillas <javierm@xxxxxxxxxx>
Cc: Thomas Zimmermann <tzimmermann@xxxxxxx>
Cc: Mark Brown <broonie@xxxxxxxxxx>
Cc: linux-next@xxxxxxxxxxxxxxx
---
 drivers/firmware/efi/sysfb_efi.c |    2 ++
 1 file changed, 2 insertions(+)

--- linext-20210726.orig/drivers/firmware/efi/sysfb_efi.c
+++ linext-20210726/drivers/firmware/efi/sysfb_efi.c
@@ -332,6 +332,7 @@ static const struct fwnode_operations ef
 	.add_links = efifb_add_links,
 };
 
+#ifdef CONFIG_EFI
 static struct fwnode_handle efifb_fwnode;
 
 __init void sysfb_apply_efi_quirks(struct platform_device *pd)
@@ -354,3 +355,4 @@ __init void sysfb_apply_efi_quirks(struc
 		pd->dev.fwnode = &efifb_fwnode;
 	}
 }
+#endif