6.11-stable review patch. If anyone has any objections, please let me know.
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From: Sibi Sankar quic_sibis@quicinc.com
commit 0bf020344204a2c1067b7562b6a247e6c689e28b upstream.
The domain attributes returned by the perf protocol can end up reporting identical names across domains, resulting in debugfs node creation failure. Use the GENPD_FLAG_DEV_NAME_FW to ensure the genpd providers end up with an unique name.
Logs: [X1E reports 'NCC' for all its scmi perf domains] debugfs: Directory 'NCC' with parent 'pm_genpd' already present! debugfs: Directory 'NCC' with parent 'pm_genpd' already present!
Reported-by: Johan Hovold johan+linaro@kernel.org Closes: https://lore.kernel.org/lkml/ZoQjAWse2YxwyRJv@hovoldconsulting.com/ Suggested-by: Ulf Hansson ulf.hansson@linaro.org Suggested-by: Dmitry Baryshkov dmitry.baryshkov@linaro.org Signed-off-by: Sibi Sankar quic_sibis@quicinc.com Cc: stable@vger.kernel.org Message-ID: 20241030125512.2884761-6-quic_sibis@quicinc.com Signed-off-by: Ulf Hansson ulf.hansson@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/pmdomain/arm/scmi_perf_domain.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/pmdomain/arm/scmi_perf_domain.c +++ b/drivers/pmdomain/arm/scmi_perf_domain.c @@ -125,7 +125,8 @@ static int scmi_perf_domain_probe(struct scmi_pd->ph = ph; scmi_pd->genpd.name = scmi_pd->info->name; scmi_pd->genpd.flags = GENPD_FLAG_ALWAYS_ON | - GENPD_FLAG_OPP_TABLE_FW; + GENPD_FLAG_OPP_TABLE_FW | + GENPD_FLAG_DEV_NAME_FW; scmi_pd->genpd.set_performance_state = scmi_pd_set_perf_state; scmi_pd->genpd.attach_dev = scmi_pd_attach_dev; scmi_pd->genpd.detach_dev = scmi_pd_detach_dev;