blackfin:Use generic /proc/interrupts implementation

There is nothing special in that blackfin code. Use the core
implementation.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Steven Miao <realmz6@gmail.com>
Cc: bfin <adi-buildroot-devel@lists.sourceforge.net>

2 files changed, 10 insertions, 30 deletions

diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index 9ceccef9c649..f936ee6f5688 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -34,6 +34,7 @@ config BLACKFIN
         select ARCH_WANT_IPC_PARSE_VERSION
         select GENERIC_ATOMIC64
         select GENERIC_IRQ_PROBE
+        select GENERIC_IRQ_SHOW
         select HAVE_NMI_WATCHDOG if NMI_WATCHDOG
         select GENERIC_SMP_IDLE_THREAD
         select ARCH_USES_GETTIMEOFFSET if !GENERIC_CLOCKEVENTS
diff --git a/arch/blackfin/kernel/irqchip.c b/arch/blackfin/kernel/irqchip.c
index ff3d747154ac..0ba25764b8c0 100644
--- a/arch/blackfin/kernel/irqchip.c
+++ b/arch/blackfin/kernel/irqchip.c
@@ -11,6 +11,7 @@
 #include <linux/kallsyms.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
+#include <linux/seq_file.h>
 #include <asm/irq_handler.h>
 #include <asm/trace.h>
 #include <asm/pda.h>
@@ -33,37 +34,15 @@ static struct irq_desc bad_irq_desc = {
 #endif
 
 #ifdef CONFIG_PROC_FS
-int show_interrupts(struct seq_file *p, void *v)
+int arch_show_interrupts(struct seq_file *p, int prec)
 {
-        int i = *(loff_t *) v, j;
-        struct irqaction *action;
-        unsigned long flags;
-
-        if (i < NR_IRQS) {
-                struct irq_desc *desc = irq_to_desc(i);
-
-                raw_spin_lock_irqsave(&desc->lock, flags);
-                action = desc->action;
-                if (!action)
-                        goto skip;
-                seq_printf(p, "%3d: ", i);
-                for_each_online_cpu(j)
-                        seq_printf(p, "%10u ", kstat_irqs_cpu(i, j));
-                seq_printf(p, " %8s", irq_desc_get_chip(desc)->name);
-                seq_printf(p, "  %s", action->name);
-                for (action = action->next; action; action = action->next)
-                        seq_printf(p, "  %s", action->name);
-
-                seq_putc(p, '\n');
- skip:
-                raw_spin_unlock_irqrestore(&desc->lock, flags);
-        } else if (i == NR_IRQS) {
-                seq_printf(p, "NMI: ");
-                for_each_online_cpu(j)
-                        seq_printf(p, "%10u ", cpu_pda[j].__nmi_count);
-                seq_printf(p, "     CORE  Non Maskable Interrupt\n");
-                seq_printf(p, "Err: %10u\n",  atomic_read(&irq_err_count));
-        }
+        int j;
+
+        seq_printf(p, "%*s: ", prec, "NMI");
+        for_each_online_cpu(j)
+                seq_printf(p, "%10u ", cpu_pda[j].__nmi_count);
+        seq_printf(p, "  CORE  Non Maskable Interrupt\n");
+        seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read(&irq_err_count));
         return 0;
 }
 #endif