3 files changed, 26 insertions, 53 deletions

diff --git a/arch/h8300/kernel/gpio.c b/arch/h8300/kernel/gpio.c
index 6a25dd5530e..b02c752cd32 100644
--- a/arch/h8300/kernel/gpio.c
+++ b/arch/h8300/kernel/gpio.c
@@ -11,6 +11,7 @@
 
 #include <linux/stddef.h>
 #include <linux/proc_fs.h>
+#include <linux/seq_file.h>
 #include <linux/kernel.h>
 #include <linux/string.h>
 #include <linux/fs.h>
@@ -138,30 +139,34 @@ static char *port_status(int portno)
 	return result;
 }
 
-static int gpio_proc_read(char *buf, char **start, off_t offset, 
-                          int len, int *unused_i, void *unused_v)
+static int gpio_proc_show(struct seq_file *m, void *v)
 {
-	int c,outlen;
 	static const char port_name[]="123456789ABCDEFGH";
-	outlen = 0;
+	int c;
+
 	for (c = 0; c < MAX_PORT; c++) {
 		if (ddrs[c] == NULL)
-			continue ;
-		len = sprintf(buf,"P%c: %s\n",port_name[c],port_status(c));
-		buf += len;
-		outlen += len;
+			continue;
+		seq_printf(m, "P%c: %s\n", port_name[c], port_status(c));
 	}
-	return outlen;
+	return 0;
 }
 
-static __init int register_proc(void)
+static int gpio_proc_open(struct inode *inode, struct file *file)
 {
-	struct proc_dir_entry *proc_gpio;
+	return single_open(file, gpio_proc_show, PDE_DATA(inode));
+}
 
-	proc_gpio = create_proc_entry("gpio", S_IRUGO, NULL);
-	if (proc_gpio) 
-		proc_gpio->read_proc = gpio_proc_read;
-	return proc_gpio != NULL;
+static const struct file_operations gpio_proc_fops = {
+	.open		= gpio_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= seq_release,
+};
+
+static __init int register_proc(void)
+{
+	return proc_create("gpio", S_IRUGO, NULL, &gpio_proc_fops) != NULL;
 }
 
 __initcall(register_proc);
diff --git a/arch/h8300/kernel/process.c b/arch/h8300/kernel/process.c
index b609f63f159..1a744ab7e7e 100644
--- a/arch/h8300/kernel/process.c
+++ b/arch/h8300/kernel/process.c
@@ -53,40 +53,13 @@ asmlinkage void ret_from_kernel_thread(void);
  * The idle loop on an H8/300..
  */
 #if !defined(CONFIG_H8300H_SIM) && !defined(CONFIG_H8S_SIM)
-static void default_idle(void)
+void arch_cpu_idle(void)
 {
-	local_irq_disable();
-	if (!need_resched()) {
-		local_irq_enable();
-		/* XXX: race here! What if need_resched() gets set now? */
-		__asm__("sleep");
-	} else
-		local_irq_enable();
-}
-#else
-static void default_idle(void)
-{
-	cpu_relax();
+	local_irq_enable();
+	/* XXX: race here! What if need_resched() gets set now? */
+	__asm__("sleep");
 }
 #endif
-void (*idle)(void) = default_idle;
-
-/*
- * The idle thread. There's no useful work to be
- * done, so just try to conserve power and have a
- * low exit latency (ie sit in a loop waiting for
- * somebody to say that they'd like to reschedule)
- */
-void cpu_idle(void)
-{
-	while (1) {
-		rcu_idle_enter();
-		while (!need_resched())
-			idle();
-		rcu_idle_exit();
-		schedule_preempt_disabled();
-	}
-}
 
 void machine_restart(char * __unused)
 {
@@ -110,6 +83,8 @@ void machine_power_off(void)
 
 void show_regs(struct pt_regs * regs)
 {
+	show_regs_print_info(KERN_DEFAULT);
+
 	printk("\nPC: %08lx  Status: %02x",
 	       regs->pc, regs->ccr);
 	printk("\nORIG_ER0: %08lx ER0: %08lx ER1: %08lx",
diff --git a/arch/h8300/kernel/traps.c b/arch/h8300/kernel/traps.c
index 7833aa3e7c7..cfe494dbe3d 100644
--- a/arch/h8300/kernel/traps.c
+++ b/arch/h8300/kernel/traps.c
@@ -164,10 +164,3 @@ void show_trace_task(struct task_struct *tsk)
 {
 	show_stack(tsk,(unsigned long *)tsk->thread.esp0);
 }
-
-void dump_stack(void)
-{
-	show_stack(NULL,NULL);
-}
-
-EXPORT_SYMBOL(dump_stack);