Stephen Hemminger [off-list ref] writes:

On Wed, 20 May 2020 00:23:48 +0200
Thomas Gleixner [off-list ref] wrote:

quoted

No. We did not. -ENOTESTCASE

Please try, it isn't that hard..

# time for ((i=0;i<1000;i++)); do ip li add dev dummy$i type dummy; done

real	0m17.002s
user	0m1.064s
sys	0m0.375s

And that solves the incorrectness of the current code in which way?