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This reverts commit6103823375which is commitb30a43ac71upstream. Sven reports: Commit 1e07d63749 ("drm/nouveau: add kconfig option to turn off nouveau legacy contexts. (v3)") has caused a build failure for me when I actually tried that option (CONFIG_NOUVEAU_LEGACY_CTX_SUPPORT=n): ,---- | Kernel: arch/x86/boot/bzImage is ready (#1) | Building modules, stage 2. | MODPOST 290 modules | ERROR: "drm_legacy_mmap" [drivers/gpu/drm/nouveau/nouveau.ko] undefined! | scripts/Makefile.modpost:91: recipe for target '__modpost' failed `---- Upstream does not have that problem, as commitbed2dd8421("drm/ttm: Quick-test mmap offset in ttm_bo_mmap()") has removed the use of drm_legacy_mmap from nouveau_ttm.c. Unfortunately that commit does not apply in 5.1.9. The ensuing discussion proposed a number of one-off patches, but no solid agreement was made, so just revert the commit for now to get people's systems building again. Reported-by: Sven Joachim <svenjoac@gmx.de> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Dave Airlie <airlied@redhat.com> Cc: Thomas Backlund <tmb@mageia.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.