Arch Linux mkinitcpio: Possibly missing firmware for module

Arch Linux mkinitcpio: Possibly missing firmware for module.md

Problem

In Arch Linux mkinitcpio -p linux

shows

Possibly missing firmware for module: aic94xx
 Possibly missing firmware for module: wd719x

Solve

git clone https://aur.archlinux.org/aic94xx-firmware.git
cd aic94xx-firmware
makepkg -sri

git clone https://aur.archlinux.org/wd719x-firmware.git
cd wd719x-firmware
makepkg -sri

and then mkinitcpio -p linux again.

Reference

https://wiki.archlinux.org/index.php/Mkinitcpio