From: Geert Uytterhoeven Date: Thu, 15 Jan 2026 08:51:45 +0000 (+0100) Subject: arm64: topology: Do not warn on missing AMU in cpuhp_topology_online() X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=747d5b6735caa0178b3f1c922cfa9c285b093f22;p=thirdparty%2Flinux.git arm64: topology: Do not warn on missing AMU in cpuhp_topology_online() When CONFIG_CPUMASK_OFFSTACK is not enabled, and resuming from s2ram on Renesas R-Car H3 (big.LITTLE 4x Cortex-A57 + 4x Cortex-A53), during enabling of the first little core, a warning message is printed: AMU: CPU[4] doesn't support AMU counters This confuses users, as during boot amu_fie_setup() does not print such a message, unless debugging is enabled (freq_counters_valid() prints "CPU%d: counters are not supported.\n" at debug level in that case). Hence drop the warning, freq_counters_valid() has already printed a debug message anyway. Fixes: 6fd9be0b7b2e ("arm64: topology: Handle AMU FIE setup on CPU hotplug") Signed-off-by: Geert Uytterhoeven Reviewed-by: Lifeng Zheng Signed-off-by: Will Deacon --- diff --git a/arch/arm64/kernel/topology.c b/arch/arm64/kernel/topology.c index 539b389351828..3fe1faab03620 100644 --- a/arch/arm64/kernel/topology.c +++ b/arch/arm64/kernel/topology.c @@ -332,7 +332,6 @@ static int cpuhp_topology_online(unsigned int cpu) * may use different source of the freq scale. */ if (!freq_counters_valid(cpu)) { - pr_warn("CPU[%u] doesn't support AMU counters\n", cpu); topology_clear_scale_freq_source(SCALE_FREQ_SOURCE_ARCH, policy->related_cpus); cpumask_andnot(amu_fie_cpus, amu_fie_cpus, policy->related_cpus);