Martin Radev 30c434efc1 gpu: nvgpu: check for extra mapping flags ...

User space may erroneously provide extra flags for buffer
mappings which always get silently ignored without any
error. It would be better to return error to catch cases
of ABI mismatches.

This patch checks if any extra flags were provided and
returns error if this is the case.

Jira NVGPU-6640
Bug 3489827

Change-Id: Ib226f049f81bef48bf00656259ed97ba0a3eb47c
Signed-off-by: Martin Radev <mradev@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2676684
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Sagar Kamble <skamble@nvidia.com>
Reviewed-by: Alex Waterman <alexw@nvidia.com>
GVS: Gerrit_Virtual_Submit

2022-03-09 21:07:59 -08:00

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