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[ Upstream commit97252d0a4b] I've recently been seeing some unexplained GSP errors on my RTX 6000 from failed aux transactions: [ 132.915867] nouveau 0000:1f:00.0: gsp: cli:0xc1d00002 obj:0x00730000 ctrl cmd:0x00731341 failed: 0x0000ffff While the cause of these is not yet clear, these messages made me notice that the aux transactions causing these transactions were succeeding - not failing. As it turns out, this is because we're currently not returning the correct variable when r535_dp_aux_xfer() hits an error - causing us to never propagate GSP errors for failed aux transactions to userspace. So, let's fix that. Fixes:4ae3a20102("nouveau/gsp: don't free ctrl messages on errors") Signed-off-by: Lyude Paul <lyude@redhat.com> Reviewed-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240315212104.776936-1-lyude@redhat.com Signed-off-by: Sasha Levin <sashal@kernel.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.