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Commit 6ac57b18 authored Jun 18, 2015 by Matt Wagantall

arm: psci: drop info prints seen during cpu hotplug to pr_debug



These message are printed every time a CPU in hotplugged out,
resulting in log noise and hurting hotplug latency. Silence them
by default, by dropping them to pr_debug.

Change-Id: I21632c1dbf54342b5980a82ab7389713e943bf6c
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>

parent e1a148f7

arch/arm/kernel/psci_smp.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -84,12 +84,12 @@ int __ref psci_cpu_kill(unsigned int cpu)
		for (i = 0; i < 10; i++) {
		err = psci_ops.affinity_info(cpu_logical_map(cpu), 0);
		if (err == PSCI_0_2_AFFINITY_LEVEL_OFF) {
		pr_info("CPU%d killed.\n", cpu);
		pr_debug("CPU%d killed.\n", cpu);
		return 1;
		}

		msleep(10);
		pr_info("Retrying again to check for CPU kill\n");
		pr_debug("Retrying again to check for CPU kill\n");
		}

		pr_warn("CPU%d may not have shut down cleanly (AFFINITY_INFO reports %d)\n",

arch/arm64/kernel/psci.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -548,12 +548,12 @@ static int cpu_psci_cpu_kill(unsigned int cpu)
		for (i = 0; i < 10; i++) {
		err = psci_ops.affinity_info(cpu_logical_map(cpu), 0);
		if (err == PSCI_0_2_AFFINITY_LEVEL_OFF) {
		pr_info("CPU%d killed.\n", cpu);
		pr_debug("CPU%d killed.\n", cpu);
		return 1;
		}

		msleep(10);
		pr_info("Retrying again to check for CPU kill\n");
		pr_debug("Retrying again to check for CPU kill\n");
		}

		pr_warn("CPU%d may not have shut down cleanly (AFFINITY_INFO reports %d)\n",