ARM: cpuidle: Remove overzealous error logging
CPUidle back-end operations are not implemented in some platforms but this should not be considered an error serious enough to be logged. Check the arm_cpuidle_init() return value to detect whether the failure must be reported or not in the kernel log and do not log it if the platform does not support CPUidle operations. Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Cc: Ulf Hansson <ulf.hansson@linaro.org> Cc: Sudeep Holla <sudeep.holla@arm.com> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Signed-off-by: Will Deacon <will@kernel.org>alistair/sunxi64-5.4-dsi
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63e3ee6154
commit
6460d7ba48
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@ -105,11 +105,17 @@ static int __init arm_idle_init_cpu(int cpu)
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ret = arm_cpuidle_init(cpu);
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ret = arm_cpuidle_init(cpu);
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/*
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/*
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* Allow the initialization to continue for other CPUs, if the reported
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* Allow the initialization to continue for other CPUs, if the
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* failure is a HW misconfiguration/breakage (-ENXIO).
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* reported failure is a HW misconfiguration/breakage (-ENXIO).
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*
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* Some platforms do not support idle operations
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* (arm_cpuidle_init() returning -EOPNOTSUPP), we should
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* not flag this case as an error, it is a valid
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* configuration.
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*/
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*/
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if (ret) {
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if (ret) {
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pr_err("CPU %d failed to init idle CPU ops\n", cpu);
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if (ret != -EOPNOTSUPP)
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pr_err("CPU %d failed to init idle CPU ops\n", cpu);
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ret = ret == -ENXIO ? 0 : ret;
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ret = ret == -ENXIO ? 0 : ret;
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goto out_kfree_drv;
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goto out_kfree_drv;
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}
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}
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