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| author | Anju T Sudhakar <anju@linux.vnet.ibm.com> | 2019-11-27 12:50:35 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-06-07 13:18:49 +0200 |
| commit | f2adfe126bdb2a12f8e1cac9657b1deec612eafc (patch) | |
| tree | 1919cc007e29032eaed2f5a1cf5a10a55011bb5b /include | |
| parent | a293045d38c1a31246589cc22258d9755a81caf7 (diff) | |
powerpc/powernv: Avoid re-registration of imc debugfs directory
[ Upstream commit 48e626ac85b43cc589dd1b3b8004f7f85f03544d ]
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@linux.vnet.ibm.com>
Tested-by: Nageswara R Sastry <nasastry@in.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191127072035.4283-1-anju@linux.vnet.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions