None of the DRM usage sites of temporary mappings requires the side effects of io/kmap_atomic(), i.e. preemption and pagefault disable.
Replace them with the io/kmap_local() variants, simplify the copy_to/from_user() error handling and remove the atomic variants.
Thanks,
tglx --- Documentation/driver-api/io-mapping.rst | 22 +++------- drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c | 7 +-- drivers/gpu/drm/i915/i915_gem.c | 40 ++++++------------- drivers/gpu/drm/i915/selftests/i915_gem.c | 4 - drivers/gpu/drm/i915/selftests/i915_gem_gtt.c | 8 +-- drivers/gpu/drm/nouveau/nvkm/subdev/devinit/fbmem.h | 8 +-- drivers/gpu/drm/qxl/qxl_image.c | 18 ++++---- drivers/gpu/drm/qxl/qxl_ioctl.c | 27 ++++++------ drivers/gpu/drm/qxl/qxl_object.c | 12 ++--- drivers/gpu/drm/qxl/qxl_object.h | 4 - drivers/gpu/drm/qxl/qxl_release.c | 4 - drivers/gpu/drm/ttm/ttm_bo_util.c | 20 +++++---- drivers/gpu/drm/vmwgfx/vmwgfx_blit.c | 30 +++++--------- include/linux/highmem-internal.h | 14 ------ include/linux/io-mapping.h | 42 -------------------- 15 files changed, 93 insertions(+), 167 deletions(-)