Which tools do you mean for update? Bridge-utils iproute2
Imho users should use actual tools provided by distibution and not need to self compile them. Can we/simply revert this patch?
Is 4.14 and 4.19 affected? I did not find this commit-message in stable git: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/log/?h=linux-4.19.y&qt=grep&q=Expose+tagging+protocol
at least 4.14 and 4.19 does not contain this patch (found no tagging_show function in net/dsa/slave.c)