rstpd implementation

[Phil]

Hi,

When looking for an RSTP daemon I found Stephen Hemminger's 
git://git.kernel.org/pub/scm/linux/kernel/git/shemminger/rstp.git 
<https://kernel.googlesource.com/pub/scm/linux/kernel/git/shemminger/rstp#zSoyz>
with it's last commit from October 2011.

Is this implementation still in good use by anybody - or has it been 
replaced/superseded by another implementation?

Any hints are welcome.

Cheers,
Philipp