# \[PATCH 14/20\] x86: fbdev: include asm/fb.h as needed

- From: Arnd Bergmann \<arnd@kernel.org\>
- Date: 2023-05-16 19:38:41 
- List: linux-trace-kernel
- Page: https://ratatoskr.run/linux-trace-kernel/2023/05/2199813
- Thread: https://ratatoskr.run/linux-trace-kernel/2023/05/2199796/t.md

```text
From: Arnd Bergmann <arnd@arndb.de>

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>
---
 arch/x86/video/fbdev.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/video/fbdev.c b/arch/x86/video/fbdev.c
index 9fd24846d094..9e9143085d19 100644
--- a/arch/x86/video/fbdev.c
+++ b/arch/x86/video/fbdev.c
@@ -10,6 +10,7 @@
 #include <linux/pci.h>
 #include <linux/module.h>
 #include <linux/vgaarb.h>
+#include <asm/fb.h>
 
 int fb_is_primary_device(struct fb_info *info)
 {
-- 
2.39.2

```