On 21.11.2024 5:48 PM, Rob Clark wrote:
> From: Rob Clark <robdclark@xxxxxxxxxxxx>
>
> Debugging incorrect UAPI usage tends to be a bit painful, so add a
> helper macro to make it easier to add debug logging which can be enabled
> at runtime via drm.debug.
>
> Signed-off-by: Rob Clark <robdclark@xxxxxxxxxxxx>
> ---
[...]
> +/* Helper for returning a UABI error with optional logging which can make
> + * it easier for userspace to understand what it is doing wrong.
> + */
> +#define UERR(err, drm, fmt, ...) \
> + ({ DRM_DEV_DEBUG_DRIVER((drm)->dev, fmt, ##__VA_ARGS__); -(err); })
> +
> #define DBG(fmt, ...) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__)
> #define VERB(fmt, ...) if (0) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__)
I'm generally not a fan of adding driver-specific debug prints..
Maybe that's something that could be pushed to the drm-common layer
or even deeper down the stack?
Konrad
