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Commit375cca1cfe("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
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.