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

From: Thomas Zimmermann
Date: Wed Nov 23 2022 - 03:33:09 EST


Hi

Am 23.11.22 um 06:35 schrieb David Airlie:
On Wed, Nov 23, 2022 at 3:21 PM Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:

Hi all,

On Thu, 17 Nov 2022 18:32:14 +1100 Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:

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 <sfr@xxxxxxxxxxxxxxxx>
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 <sfr@xxxxxxxxxxxxxxxx>
---
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

This commit went away for a couple of linux-next releases, but now has
reappeared in the drm tree :-( What went wrong?

Nothing gone wrong as such, just the drm-misc-next pull request was
sent on a regular weekly cadence, then I merged it a few days later.
The fix for this is still in the drm-misc-next queue for the next PR
which I will get this week.

The next PR should be drm-misc-next-fixes. FYI I forwarded the tree and cherry-picked the patch from drm-misc-next.

Best regards
Thomas


Dave.


--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Ivo Totev

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