Re: [PATCH 1/1] genirq/cpuhotplug: Bump debugging information print down to KERN_DEBUG
From: Thomas Gleixner
Date: Tue Aug 10 2021 - 10:24:41 EST
On Thu, Jun 17 2021 at 08:31, Lee Jones wrote:
> This sort of information is only generally useful when debugging.
>
> No need to have these sprinkled through the kernel log otherwise.
Yes and no.
> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx>
> ---
> kernel/irq/cpuhotplug.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/kernel/irq/cpuhotplug.c b/kernel/irq/cpuhotplug.c
> index 02236b13b3599..cf8d4f75632e8 100644
> --- a/kernel/irq/cpuhotplug.c
> +++ b/kernel/irq/cpuhotplug.c
> @@ -42,7 +42,7 @@ static inline bool irq_needs_fixup(struct irq_data *d)
> * If this happens then there was a missed IRQ fixup at some
> * point. Warn about it and enforce fixup.
> */
> - pr_warn("Eff. affinity %*pbl of IRQ %u contains only offline CPUs after offlining CPU %u\n",
This one is clearly a warning as this should not happen. See the
comments around that.
> + pr_debug("Eff. affinity %*pbl of IRQ %u contains only offline CPUs after offlining CPU %u\n",
> cpumask_pr_args(m), d->irq, cpu);
> return true;
> }
> @@ -166,7 +166,7 @@ void irq_migrate_all_off_this_cpu(void)
> raw_spin_unlock(&desc->lock);
>
> if (affinity_broken) {
> - pr_warn_ratelimited("IRQ %u: no longer affine to CPU%u\n",
> + pr_debug_ratelimited("IRQ %u: no longer affine to CPU%u\n",
> irq, smp_processor_id());
Maybe, but distro people might have opinions on that.
Thanks,
tglx