[PATCH] drm/amdgpu: fix link error for !PM_SLEEP

[Arnd Bergmann]

On Mon, Jul 14, 2025, at 16:59, Limonciello, Mario wrote:
> On 7/14/25 3:16 AM, Arnd Bergmann wrote:
>> From: Arnd Bergmann <arnd at arndb.de>
>> 
>> When power management is not enabled in the kernel build, the newly
>> added hibernation changes cause a link failure:
>> 
>> arm-linux-gnueabi-ld: drivers/gpu/drm/amd/amdgpu/amdgpu_drv.o: in function `amdgpu_pmops_thaw':
>> amdgpu_drv.c:(.text+0x1514): undefined reference to `pm_hibernate_is_recovering'
>> 
>> Make the power management code in this driver conditional on
>> CONFIG_PM and CONFIG_PM_SLEEP
>> 
>> Fixes: 530694f54dd5 ("drm/amdgpu: do not resume device in thaw for normal hibernation")
>> Signed-off-by: Arnd Bergmann <arnd at arndb.de>
>
> We're going to fix it using this stub instead.
>
> https://lore.kernel.org/linux-pm/20250712233715.821424-1-superm1@kernel.org/
>
> It's in drm-misc-next as of this weekend and it should show up in 
> linux-next in the next day or two.

That patch makes sense as well, but I think mine is useful as an
improvement even if it doesn't address a link failure but only
reduces the object size by reducing the amount of dead code.

      Arnd