Short summary of fixes pull:

bridge:
- select DRM_KMS_HELPER

dma-buf:
- fix NULL-pointer deref

dp:
- fix div-by-zero in DP MST unplug code

fbdev:
- select FB_IOMEM_FOPS for SBus

nouveau:
- dmem: handle kcalloc() allocation failures

qxl:
- remove unused variables

rockchip:
- vop2: remove support for AR30 and AB30 formats

sched:
- fix NULL-pointer deref

vmwgfx:
- debugfs: create ttm_resource_manager entry only if needed
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