On Thu, Nov 5, 2020 at 7:07 AM Arnd Bergmann [off-list ref] wrote:
Adding Martin Schiller and Andrew Hendry, plus the linux-x25 mailing
list to Cc.
The linux-x25 mail list has stopped working for a long time.
When I last looked at the wan drivers, I think I concluded
that this should still be kept around, but I do not remember why.
I think we only decided that X.25 as a whole was still needed. We
didn't decide that this particular driver was necessary.
Since you did the bugfix mentioned above, do you have an idea
when it could have last worked? I see it was originally merged in
linux-2.3.21, and Stephen Hemminger did a cleanup for
linux-2.6.0-rc3 that he apparently tested but also said "Not sure
if anyone ever uses this.".
I think this driver never worked. Looking at the original code in
Linux 2.1.31, it already has the problems I fixed in commit
8fdcabeac398.
I guess when people (or bots) say they "tested", they have not
necessarily used this driver to actually try transporting data. They
may just have tested open/close, etc. to confirm that the particular
problem/issue they saw had been fixed.