* Arnd Bergmann (arndb@de.ibm.com)
*/
+#define KMSG_COMPONENT "cio"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
#include <linux/init.h>
#include <linux/vmalloc.h>
-#include <linux/slab.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/ctype.h>
#include "cio.h"
#include "cio_debug.h"
#include "css.h"
+#include "device.h"
/*
* "Blacklisting" of certain devices:
{
if ((from_ssid > to_ssid) || ((from_ssid == to_ssid) && (from > to))) {
if (msgtrigger)
- printk(KERN_WARNING "cio: Invalid cio_ignore range "
- "0.%x.%04x-0.%x.%04x\n", from_ssid, from,
- to_ssid, to);
+ pr_warning("0.%x.%04x to 0.%x.%04x is not a valid "
+ "range for cio_ignore\n", from_ssid, from,
+ to_ssid, to);
+
return 1;
}
rc = 0;
out:
if (rc && msgtrigger)
- printk(KERN_WARNING "cio: Invalid cio_ignore device '%s'\n",
- str);
+ pr_warning("%s is not a valid device for the cio_ignore "
+ "kernel parameter\n", str);
return rc;
}
rc = blacklist_range(ra, from_ssid, to_ssid, from, to,
msgtrigger);
if (rc)
- totalrc = 1;
+ totalrc = -EINVAL;
} else
- totalrc = 1;
+ totalrc = -EINVAL;
}
return totalrc;
rc = blacklist_parse_parameters(buf, free, 0);
else if (strcmp("add", parm) == 0)
rc = blacklist_parse_parameters(buf, add, 0);
+ else if (strcmp("purge", parm) == 0)
+ return ccw_purge_blacklisted();
else
- return 1;
+ return -EINVAL;
css_schedule_reprobe();
static void *
cio_ignore_proc_seq_start(struct seq_file *s, loff_t *offset)
{
- struct ccwdev_iter *iter;
+ struct ccwdev_iter *iter = s->private;
if (*offset >= (__MAX_SUBCHANNEL + 1) * (__MAX_SSID + 1))
return NULL;
- iter = kzalloc(sizeof(struct ccwdev_iter), GFP_KERNEL);
- if (!iter)
- return ERR_PTR(-ENOMEM);
+ memset(iter, 0, sizeof(*iter));
iter->ssid = *offset / (__MAX_SUBCHANNEL + 1);
iter->devno = *offset % (__MAX_SUBCHANNEL + 1);
return iter;
static void
cio_ignore_proc_seq_stop(struct seq_file *s, void *it)
{
- if (!IS_ERR(it))
- kfree(it);
}
static void *
size_t user_len, loff_t *offset)
{
char *buf;
- size_t i;
- ssize_t rc, ret;
+ ssize_t rc, ret, i;
if (*offset)
return -EINVAL;
}
ret = blacklist_parse_proc_parameters(buf);
if (ret)
- rc = -EINVAL;
+ rc = ret;
else
rc = user_len;
static int
cio_ignore_proc_open(struct inode *inode, struct file *file)
{
- return seq_open(file, &cio_ignore_proc_seq_ops);
+ return seq_open_private(file, &cio_ignore_proc_seq_ops,
+ sizeof(struct ccwdev_iter));
}
static const struct file_operations cio_ignore_proc_fops = {
.open = cio_ignore_proc_open,
.read = seq_read,
.llseek = seq_lseek,
- .release = seq_release,
+ .release = seq_release_private,
.write = cio_ignore_write,
};