Driver Build Fails on Kernel 5.15-rc5: Header File net/ipx.h Removed from Kernel Source Tree

[ejmarkow]

Header file net/ipx.h was completely removed from the kernel source tree on 2021-08-14 due to the ipx network layer being obsolete, causing the driver build to fail since it was depended on in rtl8723bu/core/rtw_br_ext.c.

I carefully cleaned out all references to ipx in rtw_br_ext.c and the driver now builds fine, and works.

Link to removal of ipx.h in Linux Kernel source tree

Link to my quick & dirty ipx patch for RTL8723BU

[dini]

#184