Comment 0 for bug 1896760

Mellanox has made a patch to fix DPDK failure in Azure with ConnextX3 pro:

https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/drivers/infiniband/hw/mlx4?h=next-20200908&id=ec78b3bd66bc9a015505df0ef0eb153d9e64b03b

Older kernels don't need this patch. It only affects newer kernels with the following patch:

commit 9012a6de6b43146c934752a60d358c31dbad4368
Author: Kamal Heib <email address hidden>
Date: Tue May 19 13:12:17 2020 -0400
[infiniband] IB/core: Fix potential NULL pointer dereference in pkey cache

If a kernel ships with this patch, it needs the 1st patch.