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27f8f5219f
The new vkms virtual display code is atomic so there is
no need to call drm_helper_disable_unused_functions()
when it is enabled. Doing so can result in a segfault.
When the driver switched from the old virtual display code
to the new atomic virtual display code, it was missed that
we enable virtual display unconditionally under SR-IOV
so the checks here missed that case. Add the missing
check for SR-IOV.
There is no equivalent of this patch for Linus' tree
because the relevant code no longer exists. This patch
is only relevant to kernels 5.15 and 5.16.
Fixes: 84ec374bd5 ("drm/amdgpu: create amdgpu_vkms (v4)")
Cc: stable@vger.kernel.org # 5.15.x
Cc: hgoffin@amazon.com
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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.
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.