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Diffstat (limited to 'arch/parisc/kernel/pdc_chassis.c')
-rw-r--r--arch/parisc/kernel/pdc_chassis.c47
1 files changed, 24 insertions, 23 deletions
diff --git a/arch/parisc/kernel/pdc_chassis.c b/arch/parisc/kernel/pdc_chassis.c
index d47ba1aa8253..8fa314fbfb18 100644
--- a/arch/parisc/kernel/pdc_chassis.c
+++ b/arch/parisc/kernel/pdc_chassis.c
@@ -30,11 +30,13 @@
#endif
#include <linux/init.h>
+#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/reboot.h>
#include <linux/notifier.h>
#include <linux/cache.h>
#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
#include <asm/pdc_chassis.h>
#include <asm/processor.h>
@@ -244,38 +246,38 @@ int pdc_chassis_send_status(int message)
#ifdef CONFIG_PDC_CHASSIS_WARN
#ifdef CONFIG_PROC_FS
-static int pdc_chassis_warn_pread(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int pdc_chassis_warn_show(struct seq_file *m, void *v)
{
- char *out = page;
- int len, ret;
unsigned long warn;
u32 warnreg;
- ret = pdc_chassis_warn(&warn);
- if (ret != PDC_OK)
+ if (pdc_chassis_warn(&warn) != PDC_OK)
return -EIO;
warnreg = (warn & 0xFFFFFFFF);
if ((warnreg >> 24) & 0xFF)
- out += sprintf(out, "Chassis component failure! (eg fan or PSU): 0x%.2x\n", ((warnreg >> 24) & 0xFF));
-
- out += sprintf(out, "Battery: %s\n", (warnreg & 0x04) ? "Low!" : "OK");
- out += sprintf(out, "Temp low: %s\n", (warnreg & 0x02) ? "Exceeded!" : "OK");
- out += sprintf(out, "Temp mid: %s\n", (warnreg & 0x01) ? "Exceeded!" : "OK");
-
- len = out - page - off;
- if (len < count) {
- *eof = 1;
- if (len <= 0) return 0;
- } else {
- len = count;
- }
- *start = page + off;
- return len;
+ seq_printf(m, "Chassis component failure! (eg fan or PSU): 0x%.2x\n",
+ (warnreg >> 24) & 0xFF);
+
+ seq_printf(m, "Battery: %s\n", (warnreg & 0x04) ? "Low!" : "OK");
+ seq_printf(m, "Temp low: %s\n", (warnreg & 0x02) ? "Exceeded!" : "OK");
+ seq_printf(m, "Temp mid: %s\n", (warnreg & 0x01) ? "Exceeded!" : "OK");
+ return 0;
+}
+
+static int pdc_chassis_warn_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, pdc_chassis_warn_show, NULL);
}
+static const struct file_operations pdc_chassis_warn_fops = {
+ .open = pdc_chassis_warn_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
+
static int __init pdc_chassis_create_procfs(void)
{
unsigned long test;
@@ -290,8 +292,7 @@ static int __init pdc_chassis_create_procfs(void)
printk(KERN_INFO "Enabling PDC chassis warnings support v%s\n",
PDC_CHASSIS_VER);
- create_proc_read_entry("chassis", 0400, NULL, pdc_chassis_warn_pread,
- NULL);
+ proc_create("chassis", 0400, NULL, &pdc_chassis_warn_fops);
return 0;
}