Comment 4 for bug 1861379

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Frank Heimes (fheimes) wrote : Re: [Ubu 20.04][kernel-5.4.0-12-generic] debugfs: Directory 'imc' with parent 'powerpc' already present! lot of messages logged while booting

The commit "powerpc/imc: Dont create debugfs files for cpu-less nodes" - 41ba17f20ea835c489e77bd54e2da73184e22060 is already in focal (since Ubuntu-5.4.0-8.11).

The commit "powerpc/powernv: Avoid re-registration of imc debugfs directory" - 48e626a got upstream accepted with 5.5, hence it not yet in focal.
I'm going request to add it to focals 5.4.