[SRU][N:linux-bluefield][PATCH v1 0/2] net/mlx5: Add error handling in mlx5_query_nic_vport_node_guid()

[Stav Aviram]

BugLink: https://bugs.launchpad.net/bugs/2126876

SRU Justification:

[IMPACT]
Introduce an upstream patch series that was previously integrated into linux-bluefield-5.15 (Ubuntu 22.04 Jammy) into linux-bluefield-6.8 (Ubuntu 24.04 Noble), in order to minimize the divergence between the two kernel versions.
These patches add proper error handling for NIC vport node GUID and system GUID query operations.

[FIX]
Cherry-pick the following patches:
https://patch.msgid.link/20250524163425.1695-1-vulab@iscas.ac.cn
https://patch.msgid.link/20250521133620.912-1-vulab@iscas.ac.cn

[TEST CASE]
Successfully compiled on linux-bluefield-6.8, master-next branch.

[Regression Potential]
Very low, as the series originates from upstream and has already been integrated into Jammy without reported issues.