[Gentoo] Install Realtek RTL8723BE wifi PCIe Wireless Network Adapter for linux-4.4.6-gentoo

1. Clone rtlwifi driver from github
git clone https://github.com/lwfinger/rtlwifi_new.git

2. Jump into the folder of rtlwifi driver
cd rtlwifi_new

3. Start to compile and install
make
sudo make install
sudo modprobe rtl8723be

Reference:

• How to install Realtek RTL8723BE wifi PCIe Wireless Network Adapter

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Error 1:
Q:
Because I don't compile kernel about rtlwifi, so following message will appear.

Making backups
tar: /lib/modules/4.4.6-gentoo/kernel/drivers/net/wireless/realtek/rtlwifi: Cannot stat: No such file or directory
tar: Exiting with failure status due to previous errors
Makefile:60: recipe for target 'install' failed
make: *** [install] Error 2

A:
sudo mkdir /lib/modules/4.4.6-gentoo/kernel/drivers/net/wireless/realtek/rtlwifi -p