Re: [PATCH] drm/qxl: drop WARN_ONCE()

From: Daniel Vetter
Date: Fri May 24 2019 - 12:23:10 EST


On Fri, May 24, 2019 at 12:42:50PM +0200, Gerd Hoffmann wrote:
> There is no good reason to flood the kernel log with a WARN
> stacktrace just because someone tried to mmap a prime buffer.

Yeah no userspace triggerable dmesg noise above debug level.
>
> Signed-off-by: Gerd Hoffmann <kraxel@xxxxxxxxxx>

Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
> ---
> drivers/gpu/drm/qxl/qxl_prime.c | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/qxl/qxl_prime.c b/drivers/gpu/drm/qxl/qxl_prime.c
> index 114653b471c6..7d3816fca5a8 100644
> --- a/drivers/gpu/drm/qxl/qxl_prime.c
> +++ b/drivers/gpu/drm/qxl/qxl_prime.c
> @@ -77,6 +77,5 @@ void qxl_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr)
> int qxl_gem_prime_mmap(struct drm_gem_object *obj,
> struct vm_area_struct *area)
> {
> - WARN_ONCE(1, "not implemented");
> return -ENOSYS;
> }
> --
> 2.18.1
>

--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch