parisc: Don't use create_proc_read_entry()

Don't use create_proc_read_entry() as that is deprecated, but rather use
proc_create_data() and seq_file instead.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
cc: Helge Deller <deller@gmx.de>
cc: linux-parisc@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

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;
 }