Re: [PATCH 1/2] accep/ivpu: PM: remove broken ivpu_dbg() statements

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Applied to drm-misc-next.
Thanks.

On 26.01.2023 17:37, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@xxxxxxxx>
> 
> When CONFIG_PM is disabled, the driver fails to build:
> 
> drivers/accel/ivpu/ivpu_pm.c: In function 'ivpu_rpm_get':
> drivers/accel/ivpu/ivpu_pm.c:240:84: error: 'struct dev_pm_info' has no member named 'usage_count'
>   240 |         ivpu_dbg(vdev, RPM, "rpm_get count %d\n", atomic_read(&vdev->drm.dev->power.usage_count));
>       |                                                                                    ^
> include/linux/dynamic_debug.h:223:29: note: in definition of macro '__dynamic_func_call_cls'
>   223 |                 func(&id, ##__VA_ARGS__);                       \
>       |                             ^~~~~~~~~~~
> include/linux/dynamic_debug.h:249:9: note: in expansion of macro '_dynamic_func_call_cls'
>   249 |         _dynamic_func_call_cls(_DPRINTK_CLASS_DFLT, fmt, func, ##__VA_ARGS__)
>       |         ^~~~~~~~~~~~~~~~~~~~~~
> include/linux/dynamic_debug.h:272:9: note: in expansion of macro '_dynamic_func_call'
>   272 |         _dynamic_func_call(fmt, __dynamic_dev_dbg,              \
>       |         ^~~~~~~~~~~~~~~~~~
> include/linux/dev_printk.h:155:9: note: in expansion of macro 'dynamic_dev_dbg'
>   155 |         dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
>       |         ^~~~~~~~~~~~~~~
> drivers/accel/ivpu/ivpu_drv.h:65:17: note: in expansion of macro 'dev_dbg'
>    65 |                 dev_dbg((vdev)->drm.dev, "[%s] " fmt, #type, ##args);          \
>       |                 ^~~~~~~
> drivers/accel/ivpu/ivpu_pm.c:240:9: note: in expansion of macro 'ivpu_dbg'
>   240 |         ivpu_dbg(vdev, RPM, "rpm_get count %d\n", atomic_read(&vdev->drm.dev->power.usage_count));
>       |         ^~~~~~~~
> 
> It would be possible to rework these statements to only conditionally print
> the reference counter, or to make the driver depend on CONFIG_PM, but my
> impression is that these are not actually needed at all if the driver generally
> works, or they could be put back when required. Just remove all four of these
> to make the driver build in all configurations.
> 
> Fixes: 852be13f3bd3 ("accel/ivpu: Add PM support")
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
> ---
>  drivers/accel/ivpu/ivpu_pm.c | 10 ----------
>  1 file changed, 10 deletions(-)
> 
> diff --git a/drivers/accel/ivpu/ivpu_pm.c b/drivers/accel/ivpu/ivpu_pm.c
> index 553bcbd787b3..a880f1dd857e 100644
> --- a/drivers/accel/ivpu/ivpu_pm.c
> +++ b/drivers/accel/ivpu/ivpu_pm.c
> @@ -237,8 +237,6 @@ int ivpu_rpm_get(struct ivpu_device *vdev)
>  {
>  	int ret;
>  
> -	ivpu_dbg(vdev, RPM, "rpm_get count %d\n", atomic_read(&vdev->drm.dev->power.usage_count));
> -
>  	ret = pm_runtime_resume_and_get(vdev->drm.dev);
>  	if (!drm_WARN_ON(&vdev->drm, ret < 0))
>  		vdev->pm->suspend_reschedule_counter = PM_RESCHEDULE_LIMIT;
> @@ -248,8 +246,6 @@ int ivpu_rpm_get(struct ivpu_device *vdev)
>  
>  void ivpu_rpm_put(struct ivpu_device *vdev)
>  {
> -	ivpu_dbg(vdev, RPM, "rpm_put count %d\n", atomic_read(&vdev->drm.dev->power.usage_count));
> -
>  	pm_runtime_mark_last_busy(vdev->drm.dev);
>  	pm_runtime_put_autosuspend(vdev->drm.dev);
>  }
> @@ -314,16 +310,10 @@ void ivpu_pm_enable(struct ivpu_device *vdev)
>  	pm_runtime_allow(dev);
>  	pm_runtime_mark_last_busy(dev);
>  	pm_runtime_put_autosuspend(dev);
> -
> -	ivpu_dbg(vdev, RPM, "Enable RPM count %d\n", atomic_read(&dev->power.usage_count));
>  }
>  
>  void ivpu_pm_disable(struct ivpu_device *vdev)
>  {
> -	struct device *dev = vdev->drm.dev;
> -
> -	ivpu_dbg(vdev, RPM, "Disable RPM count %d\n", atomic_read(&dev->power.usage_count));
> -
>  	pm_runtime_get_noresume(vdev->drm.dev);
>  	pm_runtime_forbid(vdev->drm.dev);
>  }



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