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authorDavid Howells <dhowells@redhat.com>2013-04-08 16:39:33 +0100
committerAl Viro <viro@zeniv.linux.org.uk>2013-04-29 15:41:51 -0400
commit1f817b86d5e6aceed48dac7db6ce9a82a4375e3f (patch)
treeff0e0d00cd36cb696e58d7cd77a2225459e5042e
parent207e39099a90a7385900aca4868ed686f25300cb (diff)
comedi: 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: David Schleef <ds@schleef.org> cc: Ian Abbott <abbotti@mev.co.uk> cc: Mori Hess <fmhess@users.sourceforge.net> cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> cc: H Hartley Sweeten <hsweeten@visionengravers.com> cc: devel@driverdev.osuosl.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-rw-r--r--drivers/staging/comedi/proc.c52
1 files changed, 31 insertions, 21 deletions
diff --git a/drivers/staging/comedi/proc.c b/drivers/staging/comedi/proc.c
index f01e0cccac3b..db790f9fc9db 100644
--- a/drivers/staging/comedi/proc.c
+++ b/drivers/staging/comedi/proc.c
@@ -31,17 +31,15 @@
#include "comedidev.h"
#include "comedi_internal.h"
#include <linux/proc_fs.h>
-#include <linux/string.h>
+#include <linux/seq_file.h>
-static int comedi_read(char *buf, char **start, off_t offset, int len,
- int *eof, void *data)
+static int comedi_read(struct seq_file *m, void *v)
{
int i;
int devices_q = 0;
- int l = 0;
struct comedi_driver *driv;
- l += sprintf(buf + l,
+ seq_printf(m,
"comedi version " COMEDI_RELEASE "\n"
"format string: %s\n",
"\"%2d: %-20s %-20s %4d\", i, "
@@ -49,39 +47,51 @@ static int comedi_read(char *buf, char **start, off_t offset, int len,
for (i = 0; i < COMEDI_NUM_BOARD_MINORS; i++) {
struct comedi_device *dev = comedi_dev_from_minor(i);
-
if (!dev)
continue;
if (dev->attached) {
devices_q = 1;
- l += sprintf(buf + l, "%2d: %-20s %-20s %4d\n",
- i,
- dev->driver->driver_name,
- dev->board_name, dev->n_subdevices);
+ seq_printf(m, "%2d: %-20s %-20s %4d\n",
+ i, dev->driver->driver_name,
+ dev->board_name, dev->n_subdevices);
}
}
if (!devices_q)
- l += sprintf(buf + l, "no devices\n");
+ seq_puts(m, "no devices\n");
for (driv = comedi_drivers; driv; driv = driv->next) {
- l += sprintf(buf + l, "%s:\n", driv->driver_name);
- for (i = 0; i < driv->num_names; i++) {
- l += sprintf(buf + l, " %s\n",
- *(char **)((char *)driv->board_name +
- i * driv->offset));
- }
+ seq_printf(m, "%s:\n", driv->driver_name);
+ for (i = 0; i < driv->num_names; i++)
+ seq_printf(m, " %s\n",
+ *(char **)((char *)driv->board_name +
+ i * driv->offset));
+
if (!driv->num_names)
- l += sprintf(buf + l, " %s\n", driv->driver_name);
+ seq_printf(m, " %s\n", driv->driver_name);
}
- return l;
+ return 0;
+}
+
+/*
+ * seq_file wrappers for procfile show routines.
+ */
+static int comedi_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, comedi_read, NULL);
}
+static const struct file_operations comedi_proc_fops = {
+ .open = comedi_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
+
void comedi_proc_init(void)
{
- create_proc_read_entry("comedi", S_IFREG | S_IRUGO, NULL,
- comedi_read, NULL);
+ proc_create("comedi", 0644, NULL, &comedi_proc_fops);
}
void comedi_proc_cleanup(void)