Commit 375cca1cfe ("drm/vgem: Implement mmap as GEM object function") broke several IGT tests in vgem_basic. [1] Attempts to fix the issue have not worked out so far. [2][3] Revert the change for now. Note that there is a patch that converts vgem to shmem helpers. [4] Merging this change would be preferable to modifying vgem's mmap code. v2: * fix spelling error in commit message (Daniel) [1] https://intel-gfx-ci.01.org/tree/drm-tip/igt@vgem_basic@unload.html [2] https://lore.kernel.org/intel-gfx/20210709154256.12005-1-tzimmermann@suse.de/ [3] https://lore.kernel.org/intel-gfx/20210712123321.3658-1-tzimmermann@suse.de/ [4] https://patchwork.freedesktop.org/series/90671/ Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Fixes: 375cca1cfe ("drm/vgem: Implement mmap as GEM object function") Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: Christian König <christian.koenig@amd.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: "Christian König" <christian.koenig@amd.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Melissa Wen <melissa.srw@gmail.com> Cc: Qinglang Miao <miaoqinglang@huawei.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210713090235.26372-1-tzimmermann@suse.de
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