From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Mon, 15 Nov 2010 14:15:03 +0000 (+0000)
Subject: ARM: SMP: provide accessors for irq_stat data
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=46c48f222f568decb881a552caa1c8f9c96c521e;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

ARM: SMP: provide accessors for irq_stat data

Provide __inc_irq_stat() and __get_irq_stat() to increment and
read the irq stat counters.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

diff --git a/arch/arm/include/asm/hardirq.h b/arch/arm/include/asm/hardirq.h
index 522fb23241ac..923eaa1ba83b 100644
--- a/arch/arm/include/asm/hardirq.h
+++ b/arch/arm/include/asm/hardirq.h
@@ -14,6 +14,9 @@ typedef struct {
 
 #include <linux/irq_cpustat.h>	/* Standard mappings for irq_cpustat_t above */
 
+#define __inc_irq_stat(cpu, member)	__IRQ_STAT(cpu, member)++
+#define __get_irq_stat(cpu, member)	__IRQ_STAT(cpu, member)
+
 #if NR_IRQS > 512
 #define HARDIRQ_BITS	10
 #elif NR_IRQS > 256
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 36d4b9140dcf..24131264ec2c 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -423,7 +423,7 @@ asmlinkage void __exception do_local_timer(struct pt_regs *regs)
 	int cpu = smp_processor_id();
 
 	if (local_timer_ack()) {
-		irq_stat[cpu].local_timer_irqs++;
+		__inc_irq_stat(cpu, local_timer_irqs);
 		ipi_timer();
 	}
 
@@ -437,7 +437,7 @@ void show_local_irqs(struct seq_file *p)
 	seq_printf(p, "LOC: ");
 
 	for_each_present_cpu(cpu)
-		seq_printf(p, "%10u ", irq_stat[cpu].local_timer_irqs);
+		seq_printf(p, "%10u ", __get_irq_stat(cpu, local_timer_irqs));
 
 	seq_putc(p, '\n');
 }