[...]
> Commands like "tc filter add dev ppp0 parent ffff: protocol ip prio 50
> u32 match ip src 0.0.0.0/0 police rate 4mbit burst 10k drop flowid :1"
> apparently no longer works. The flowid is not accepted anymore.
> Reverting commit 720a2e8d... which you authored seems to "fix" this.
[...]

After further investigation it seems clear to me that reverting the
commit 720a2e8d... is the correct thing to do, since the real
fix for the problem this commit was supposed to fix was instead fixed in
commit c29391c7...

Whatever you specify after a u32 police you will now get a syntax error,
and according to "tc filter add u32 help" there are several things that
you are supposed to be able to specify after a police.

This reverts commit 720a2e8d.