regression with MLNX_OFED_LINUX-5.4-1.0.3.0-ubuntu20.04-x86_64/

[raph38130]

it works with MLNX_OFED_LINUX-5.3-1.0.0.1.43-ubuntu20.04-x86_64 but can't find
struct peer_memory_client _ex
when using MLNX_OFED_LINUX-5.4-1.0.3.0-ubuntu20.04-x86_64

[drossetti]

from README.md:

Please note that to build correctly, a MLNX_OFED carrying the Peer-direct fix for the bug "Peer-direct patch may cause deadlock due to lock inversion" (tracked by the Internal Ref. #2696789) is required, for example MLNX_OFED 5.3-1.0.0.1.43.