Comment 7 for bug 1693503

I have confirmed that it will not removed mlx4_en.ko

ubuntu@ubuntu:/boot$ sudo update-initramfs -u
[sudo] password for ubuntu:
update-initramfs: Generating /boot/initrd.img-4.10.0-28-generic
WARNING: Setting CRYPTSETUP in /etc/initramfs-tools/initramfs.conf is deprecated and will stop working in the future. Use /etc/cryptsetup-initramfs/conf-hook instead.
ubuntu@ubuntu:/boot$ lsinitramfs initrd.img-4.10.0-28-generic | grep mlx4_en.ko
lib/modules/4.10.0-28-generic/kernel/drivers/net/ethernet/mellanox/mlx4/mlx4_en.ko
ubuntu@ubuntu:/boot$ lsinitramfs initrd.img | grep mlx4_en.ko
lib/modules/4.10.0-28-generic/kernel/drivers/net/ethernet/mellanox/mlx4/mlx4_en.ko
ubuntu@ubuntu:/etc/modprobe.d$ ls
blacklist-ath_pci.conf blacklist-framebuffer.conf iwlwifi.conf
blacklist.conf blacklist-rare-network.conf mdadm.conf
blacklist-firewire.conf blacklist-watchdog.conf mlx4.conf-bak