diff options
| author | Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> | 2022-05-09 16:51:43 +0300 |
|---|---|---|
| committer | Juergen Gross <jgross@suse.com> | 2022-06-21 16:36:13 +0200 |
| commit | ca6969013d13282b42cb5edcc13db731a08e0ad8 (patch) | |
| tree | 5a276cfde22ba9a4d624eda7567fd6f28204b064 | |
| parent | ecb6237fa397b7b810d798ad19322eca466dbab1 (diff) | |
drm/xen: Add missing VM_DONTEXPAND flag in mmap callback
With Xen PV Display driver in use the "expected" VM_DONTEXPAND flag
is not set (neither explicitly nor implicitly), so the driver hits
the code path in drm_gem_mmap_obj() which triggers the WARNING.
Signed-off-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Link: https://lore.kernel.org/r/1652104303-5098-1-git-send-email-olekstysh@gmail.com
Signed-off-by: Juergen Gross <jgross@suse.com>
| -rw-r--r-- | drivers/gpu/drm/xen/xen_drm_front_gem.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/xen/xen_drm_front_gem.c b/drivers/gpu/drm/xen/xen_drm_front_gem.c index 5a5bf4e5b717..e31554d7139f 100644 --- a/drivers/gpu/drm/xen/xen_drm_front_gem.c +++ b/drivers/gpu/drm/xen/xen_drm_front_gem.c @@ -71,7 +71,7 @@ static int xen_drm_front_gem_object_mmap(struct drm_gem_object *gem_obj, * the whole buffer. */ vma->vm_flags &= ~VM_PFNMAP; - vma->vm_flags |= VM_MIXEDMAP; + vma->vm_flags |= VM_MIXEDMAP | VM_DONTEXPAND; vma->vm_pgoff = 0; /* |