On Sat, 31 Oct 2020 11:10:38 -0700 Xie He wrote:

The main purpose of this series is the last patch. The previous 4 patches
are just code clean-ups so that the last patch will not make the code too
messy. The patches must be applied in sequence.

The receiving code of this driver doesn't support arbitrary Ethertype
values. It only recognizes a few known Ethertypes when receiving and drops
skbs with other Ethertypes.

However, the standard document RFC 2427 allows Frame Relay to support any
Ethertype values. This series adds support for this.

Applied, but going forward please limit any refactoring and extensions
to the HDLC code. I thought you are actually using it. If that's not
the case let's leave the code be, it's likely going to be removed in 
a few years time.