On 06/13/2017 07:03 AM, Noam Camus wrote:
From: Noam Camus <noa...@mellanox.com>
The reasons are:
1) speeding up boot time, becomes critical for many CPUs machine,
e.g. NPS400 with 4K CPUs
2) shorten kernel log at boot time, again easy to scan for large
scale machines such NPS400
Signed-off-by: Noam Camus <noa...@mellanox.com>
---
arch/arc/kernel/setup.c | 6 +++---
arch/arc/kernel/smp.c | 4 ++--
arch/arc/mm/cache.c | 2 +-
arch/arc/mm/tlb.c | 2 +-
4 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c
index fc8211f..8494b31 100644
--- a/arch/arc/kernel/setup.c
+++ b/arch/arc/kernel/setup.c
@@ -385,13 +385,13 @@ void setup_processor(void)
read_arc_build_cfg_regs();
arc_init_IRQ();
- printk(arc_cpu_mumbojumbo(cpu_id, str, sizeof(str)));
+ pr_debug("%s", arc_cpu_mumbojumbo(cpu_id, str, sizeof(str)));
I understand you issue, but as Alexey mentioned before we can't switch the normal
kernel boot log to debug only.
At best you can convert the current printk to pr_info and then set the log level
in your cmdline to something higher than info !
arc_mmu_init();
arc_cache_init();
- printk(arc_extn_mumbojumbo(cpu_id, str, sizeof(str)));
- printk(arc_platform_smp_cpuinfo());
+ pr_debug("%s", arc_extn_mumbojumbo(cpu_id, str, sizeof(str)));
+ pr_debug("%s", arc_platform_smp_cpuinfo());
arc_chk_core_config();
}
diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c
index f462671..d1aa917 100644
--- a/arch/arc/kernel/smp.c
+++ b/arch/arc/kernel/smp.c
@@ -177,8 +177,8 @@ int __cpu_up(unsigned int cpu, struct task_struct *idle)
secondary_idle_tsk = idle;
- pr_info("Idle Task [%d] %p", cpu, idle);
- pr_info("Trying to bring up CPU%u ...\n", cpu);
+ pr_debug("Idle Task [%d] %p", cpu, idle);
+ pr_debug("Trying to bring up CPU%u ...\n", cpu);
if (plat_smp_ops.cpu_kick)
plat_smp_ops.cpu_kick(cpu,
diff --git a/arch/arc/mm/cache.c b/arch/arc/mm/cache.c
index a867575..7d3e79b 100644
--- a/arch/arc/mm/cache.c
+++ b/arch/arc/mm/cache.c
@@ -1188,7 +1188,7 @@ void __ref arc_cache_init(void)
unsigned int __maybe_unused cpu = smp_processor_id();
char str[256];
- printk(arc_cache_mumbojumbo(0, str, sizeof(str)));
+ pr_debug("%s", arc_cache_mumbojumbo(0, str, sizeof(str)));
/*
* Only master CPU needs to execute rest of function:
diff --git a/arch/arc/mm/tlb.c b/arch/arc/mm/tlb.c
index d0126fd..c5e70d8 100644
--- a/arch/arc/mm/tlb.c
+++ b/arch/arc/mm/tlb.c
@@ -814,7 +814,7 @@ void arc_mmu_init(void)
char str[256];
struct cpuinfo_arc_mmu *mmu = &cpuinfo_arc700[smp_processor_id()].mmu;
- printk(arc_mmu_mumbojumbo(0, str, sizeof(str)));
+ pr_debug("%s", arc_mmu_mumbojumbo(0, str, sizeof(str)));
/*
* Can't be done in processor.h due to header include depenedencies
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