iwlwifi implements a few vendor commands that are available in this tree. We strongly suggest that you disable the vendor commands Kconfig option (CPTCFG_IWLMVM_VENDOR_CMDS). Enabling vendor commands without actually sending them can cause incompatibility with certain versions of the supplicant (due to a supplicant bug) or too aggressive Multicast frames filtering. Note that CPTCFG_IWLMVM_VENDOR_CMDS is enabled by default and needs to be explicitly disabled.

In order to install the driver, you'll need to download the sources:   

git clone https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/backport-iwlwifi.git -b release/LinuxCore31

Then, you can make the sources with vendor commands disabled:

make defconfig-iwlwifi-public
sed -i 's/CPTCFG_IWLMVM_VENDOR_CMDS=y/# CPTCFG_IWLMVM_VENDOR_CMDS is not set/' .config
make -j4

Now it is time to install the modules you built

sudo make install

Now you can reboot.

执行上面的 make  命令时，出错：

make[5]: “conf”是最新的。
#
# configuration written to .config
#
Building backport-include/backport/autoconf.h ... done.
Makefile:673: Cannot use CONFIG_CC_STACKPROTECTOR_STRONG: -fstack-protector-strong not supported by compiler
  CC [M]  /home/jxl/Download/backport-iwlwifiCore31/compat/main.o
gcc: error: unrecognized command line option ‘-fstack-protector-strong’
make[6]: *** [/home/jxl/Download/backport-iwlwifiCore31/compat/main.o] 错误 1
make[5]: *** [/home/jxl/Download/backport-iwlwifiCore31/compat] 错误 2
make[4]: *** [_module_/home/jxl/Download/backport-iwlwifiCore31] 错误 2
make[3]: *** [modules] 错误 2
make[2]: *** [modules] 错误 2
make[1]: *** [modules] 错误 2
make: *** [default] 错误 2