On Wed, 2019-11-27 at 07:20:35 UTC, Anju T Sudhakar wrote:

export_imc_mode_and_cmd() function which creates the debugfs interface for
imc-mode and imc-command, is invoked when each nest pmu units is
registered.
When the first nest pmu unit is registered, export_imc_mode_and_cmd()
creates 'imc' directory under `/debug/powerpc/`. In the subsequent
invocations debugfs_create_dir() function returns, since the directory
already exists.

The recent commit <c33d442328f55> (debugfs: make error message a bit more
verbose), throws a warning if we try to invoke `debugfs_create_dir()`
with an already existing directory name.

Address this warning by making the debugfs directory registration
in the opal_imc_counters_probe() function, i.e invoke
export_imc_mode_and_cmd() function from the probe function.

Signed-off-by: Anju T Sudhakar <redacted>

Applied to powerpc fixes, thanks.

https://git.kernel.org/powerpc/c/48e626ac85b43cc589dd1b3b8004f7f85f03544d

cheers