Subject: linux-next: build failure after merge of the drm-misc tree

From: Stephen Rothwell <[email-masked]>
Date: Thu, 17 Nov 2022 18:32:14 +1100

Hi all,

After merging the drm-misc tree, today's linux-next build (powerpc
ppc44x_defconfig) failed like this:

ld: drivers/video/fbdev/core/fbmon.o: in function `fb_modesetting_disabled':
fbmon.c:(.text+0x1e4): multiple definition of `fb_modesetting_disabled'; drivers/video/fbdev/core/fbmem.o:fbmem.c:(.text+0x1bac): first defined here
ld: drivers/video/fbdev/core/fbcmap.o: in function `fb_modesetting_disabled':
fbcmap.c:(.text+0x478): multiple definition of `fb_modesetting_disabled'; drivers/video/fbdev/core/fbmem.o:fbmem.c:(.text+0x1bac): first defined here
ld: drivers/video/fbdev/core/fbsysfs.o: in function `fb_modesetting_disabled':
fbsysfs.c:(.text+0xb64): multiple definition of `fb_modesetting_disabled'; drivers/video/fbdev/core/fbmem.o:fbmem.c:(.text+0x1bac): first defined here
ld: drivers/video/fbdev/core/modedb.o: in function `fb_modesetting_disabled':
modedb.c:(.text+0x129c): multiple definition of `fb_modesetting_disabled'; drivers/video/fbdev/core/fbmem.o:fbmem.c:(.text+0x1bac): first defined here
ld: drivers/video/fbdev/core/fbcvt.o: in function `fb_modesetting_disabled':
fbcvt.c:(.text+0x0): multiple definition of `fb_modesetting_disabled'; drivers/video/fbdev/core/fbmem.o:fbmem.c:(.text+0x1bac): first defined here

Caused by commit

  0ba2fa8cbd29 ("fbdev: Add support for the nomodeset kernel parameter")

This build does not have CONFIG_VIDEO_NOMODESET set.

I applied the following patch for today.

From 63f957a050c62478ed1348c5b204bc65c68df4d7 Mon Sep 17 00:00:00 2001
From: Stephen Rothwell <[email-masked]>
Date: Thu, 17 Nov 2022 18:19:22 +1100
Subject: [PATCH] fix up for "fbdev: Add support for the nomodeset kernel parameter"

Signed-off-by: Stephen Rothwell <[email-masked]>
---
 include/linux/fb.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/fb.h b/include/linux/fb.h
index 3a822e4357b1..ea421724f733 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -807,7 +807,7 @@ extern int fb_find_mode(struct fb_var_screeninfo *var,
 #if defined(CONFIG_VIDEO_NOMODESET)
 bool fb_modesetting_disabled(const char *drvname);
 #else
-bool fb_modesetting_disabled(const char *drvname)
+static inline bool fb_modesetting_disabled(const char *drvname)
 {
 	return false;
 }
-- 
2.35.1

-- 
Cheers,
Stephen Rothwell