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* [PATCH v2 1/1] genirq/cpuhotplug: Bump debugging information print down to KERN_DEBUG
@ 2021-08-16 13:48 Lee Jones
  2021-08-24  7:20 ` [tip: irq/core] genirq/cpuhotplug: Demote debug printk " tip-bot2 for Lee Jones
  0 siblings, 1 reply; 2+ messages in thread
From: Lee Jones @ 2021-08-16 13:48 UTC (permalink / raw)
  To: lee.jones; +Cc: linux-arm-kernel, linux-kernel, Thomas Gleixner

This sort of information is only generally useful when debugging.

No need to have these sprinkled through the kernel log otherwise.

Real world problem:

  During pre-release testing these have an affect on performance on
  real products.  To the point where so much logging builds up, that
  it sets off the watchdog(s) on some high profile consumer devices.

Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Change-Id: I1ad66f05c33431e2a2b0765733c5536e835108e1
---
 kernel/irq/cpuhotplug.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/irq/cpuhotplug.c b/kernel/irq/cpuhotplug.c
index 02236b13b3599..39a41c56ad4fe 100644
--- a/kernel/irq/cpuhotplug.c
+++ b/kernel/irq/cpuhotplug.c
@@ -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());
 		}
 	}
-- 
2.33.0.rc1.237.g0d66db33f3-goog


^ permalink raw reply	[flat|nested] 2+ messages in thread

* [tip: irq/core] genirq/cpuhotplug: Demote debug printk to KERN_DEBUG
  2021-08-16 13:48 [PATCH v2 1/1] genirq/cpuhotplug: Bump debugging information print down to KERN_DEBUG Lee Jones
@ 2021-08-24  7:20 ` tip-bot2 for Lee Jones
  0 siblings, 0 replies; 2+ messages in thread
From: tip-bot2 for Lee Jones @ 2021-08-24  7:20 UTC (permalink / raw)
  To: linux-tip-commits; +Cc: Lee Jones, Thomas Gleixner, x86, linux-kernel, maz

The following commit has been merged into the irq/core branch of tip:

Commit-ID:     88ffe2d0a55a165e55cedad1693f239d47e3e17e
Gitweb:        https://git.kernel.org/tip/88ffe2d0a55a165e55cedad1693f239d47e3e17e
Author:        Lee Jones <lee.jones@linaro.org>
AuthorDate:    Mon, 16 Aug 2021 14:48:17 +01:00
Committer:     Thomas Gleixner <tglx@linutronix.de>
CommitterDate: Tue, 24 Aug 2021 09:16:20 +02:00

genirq/cpuhotplug: Demote debug printk to KERN_DEBUG

This sort of information is only generally useful when debugging.
No need to have these sprinkled through the kernel log otherwise.

Real world problem:

  During pre-release testing these have an affect on performance on
  real products.  To the point where so much logging builds up, that
  it sets off the watchdog(s) on some high profile consumer devices.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20210816134817.1503661-1-lee.jones@linaro.org
---
 kernel/irq/cpuhotplug.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/irq/cpuhotplug.c b/kernel/irq/cpuhotplug.c
index 02236b1..39a41c5 100644
--- a/kernel/irq/cpuhotplug.c
+++ b/kernel/irq/cpuhotplug.c
@@ -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());
 		}
 	}

^ permalink raw reply	[flat|nested] 2+ messages in thread

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