[PATCH v3] platforms/powernv: Avoid re-registration of imc debugfs directory

[Michael Ellerman]

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 <anju at linux.vnet.ibm.com>

Applied to powerpc fixes, thanks.

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

cheers