Re: [PATCH 1/2] drm/vmwgfx: Fix missing HYPERVISOR_GUEST dependency

[Alexey Makhalov <alexey.makhalov@broadcom.com>]

On 6/17/24 2:17 PM, Borislav Petkov wrote:
> On Mon, Jun 17, 2024 at 01:51:23PM -0700, Alexey Makhalov wrote:
>> Not really a gcc related, but the matter of a config file. It is
>> reproducible if CONFIG_HYPERVISOR_GUEST not set, but CONFIG_DRM_VMWGFX=y.
>> And this combination was allowed before the fix.
> 
> Using their config:
> 
> $ grep -E "(CONFIG_DRM_VMWGFX|CONFIG_HYPERVISOR_GUEST)" .config
> # CONFIG_HYPERVISOR_GUEST is not set
> CONFIG_DRM_VMWGFX=y
> CONFIG_DRM_VMWGFX_MKSSTATS=y
> 
> $ make ...
> 
>    OBJCOPY arch/x86/boot/setup.bin
>    BUILD   arch/x86/boot/bzImage
> Kernel: arch/x86/boot/bzImage is ready  (#2)
> $ gcc --version
> gcc (Debian 13.2.0-25) 13.2.0
> $
> 
> So no, I can't reproduce with my compiler.
> 

That is interesting! Happy to debug it, but unfortunately I can not 
reproduce your "good" compilation without the fix.
I tried
"gcc (Ubuntu 13.2.0-23ubuntu4) 13.2.0" in Ubuntu, and
"gcc (GCC) 12.2.0" in Photon OS.
All of them fail with an "undefined reference to `vmware_hypercall_slow'"