[Bug]: implicit declaration of function ‘drm_fb_helper_alloc_info’
维护者通常 6 天内回复
还没有人认领这个 Issue。
评估
调研方向
The failure is reported in guest additions at /tmp/vbox.0/vbox_fb.c:337 while building against Ubuntu’s Linux 6.8 kernel; the issue also says the build succeeds with 5.15. Start by reading the corresponding vbox_fb.c code and the uploaded build logs, then compare the kernel interfaces used by both versions. Done means guest additions compile successfully against 6.8 without breaking the reported 5.15 build.
由索引模型根据 Issue 内容生成。
描述
Version
7.2.22
Host OS Type
Windows
Host OS name + version
Version 10.0.19045.7846
Host Architecture
x86
Guest OS Type
Linux
Guest Architecture
x86
Guest OS name + version
Ubuntu 22.04.5 LTS
Component
Guest Additions/Other
What happened?
Compiling guest additions in the process of routine upgrade of the kernel to 6.8.0-149 in Ubuntu 22.04.5 LTS I am getting (via apt upgrade):
warning: the compiler differs from the one used to build the kernel
The kernel was built by: x86_64-linux-gnu-gcc-12 (Ubuntu
12.3.0-1ubuntu1~22.04.3) 12.3.0
You are using: gcc-12 (Ubuntu 12.3.0-1ubuntu1~22.04.3) 12.3.0
Why is that? They look quite identical to me!
This is fatal, though:
/tmp/vbox.0/vbox_fb.c:337:16: error: implicit declaration of function
‘drm_fb_helper_alloc_info’; did you mean ‘drm_fb_helper_fill_info’?
[-Werror=implicit-function-declaration]
337 | info = drm_fb_helper_alloc_info(helper);
| ^~~~~~~~~~~~~~~~~~~~~~~~
| drm_fb_helper_fill_info
/tmp/vbox.0/vbox_fb.c:337:14: warning: assignment to ‘struct fb_info *’
from ‘int’ makes pointer from integer without a cast [-Wint-conversion]
337 | info = drm_fb_helper_alloc_info(helper);
| ^
cc1: some warnings being treated as errors
make[2]: *** [scripts/Makefile.build:243: /tmp/vbox.0/vbox_fb.o] Error 1
make[2]: *** Waiting for unfinished jobs....
# cmd_gen_objtooldep /tmp/vbox.0/vbox_drv.o
Meanwhile, kernel 5.15.0-203 (which comes in the same upgrade) compiled guest additions without any issues.
I'm using the most up to date VirtualBx 7.2.22-175245 with its current extension package of the same version (7.2.22)
How can we reproduce this?
I don't know how can "you" reproduce this, but it's obviously a compilation bug suggesting that some feature macros (such as for the kernel version number) were not placed around the pieces of code, which are version-dependent (because an earlier kernel 5.15.0-203 does not show the same problem).
Did you upload all of your necessary log files, screenshots, etc.?
- Yes, I've uploaded all pertinent files to this issue.
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