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[ Upstream commit43d781b9fa] Like any other verbs objects, CQ shouldn't fail during destroy, but mlx5_ib didn't follow this contract with mixed IB verbs objects with DEVX. Such mix causes to the situation where FW and kernel are fully interdependent on the reference counting of each side. Kernel verbs and drivers that don't have DEVX flows shouldn't fail. Fixes:e39afe3d6d("RDMA: Convert CQ allocations to be under core responsibility") Link: https://lore.kernel.org/r/20200907120921.476363-7-leon@kernel.org Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Sasha Levin <sashal@kernel.org>