X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fscsi%2Fscsi_devinfo.c;h=4969e4ec75ea9f7b985c6c979763d8eae40bcb93;hb=9fec6060d9e48ed7db0dac0e16d0f0f0e615b7f6;hp=6839c1004b29440311bca4a0ac8f1543ac8026d6;hpb=eb44820c28bc9a042e1157b41c677018a8fdfc74;p=linux-2.6

diff --git a/drivers/scsi/scsi_devinfo.c b/drivers/scsi/scsi_devinfo.c
index 6839c1004b..4969e4ec75 100644
--- a/drivers/scsi/scsi_devinfo.c
+++ b/drivers/scsi/scsi_devinfo.c
@@ -272,7 +272,7 @@ static void scsi_strcpy_devinfo(char *name, char *to, size_t to_length,
 	}
 	if (from_length > to_length)
 		 printk(KERN_WARNING "%s: %s string '%s' is too long\n",
-			__FUNCTION__, name, from);
+			__func__, name, from);
 }
 
 /**
@@ -298,7 +298,7 @@ static int scsi_dev_info_list_add(int compatible, char *vendor, char *model,
 
 	devinfo = kmalloc(sizeof(*devinfo), GFP_KERNEL);
 	if (!devinfo) {
-		printk(KERN_ERR "%s: no memory\n", __FUNCTION__);
+		printk(KERN_ERR "%s: no memory\n", __func__);
 		return -ENOMEM;
 	}
 
@@ -363,7 +363,7 @@ static int scsi_dev_info_list_add_str(char *dev_list)
 			strflags = strsep(&next, next_check);
 		if (!model || !strflags) {
 			printk(KERN_ERR "%s: bad dev info string '%s' '%s'"
-			       " '%s'\n", __FUNCTION__, vendor, model,
+			       " '%s'\n", __func__, vendor, model,
 			       strflags);
 			res = -EINVAL;
 		} else
@@ -449,37 +449,40 @@ int scsi_get_device_flags(struct scsi_device *sdev,
 }
 
 #ifdef CONFIG_SCSI_PROC_FS
-/* 
- * proc_scsi_dev_info_read: dump the scsi_dev_info_list via
- * /proc/scsi/device_info
- */
-static int proc_scsi_devinfo_read(char *buffer, char **start,
-				  off_t offset, int length)
+static int devinfo_seq_show(struct seq_file *m, void *v)
 {
-	struct scsi_dev_info_list *devinfo;
-	int size, len = 0;
-	off_t begin = 0;
-	off_t pos = 0;
+	struct scsi_dev_info_list *devinfo =
+		list_entry(v, struct scsi_dev_info_list, dev_info_list);
 
-	list_for_each_entry(devinfo, &scsi_dev_info_list, dev_info_list) {
-		size = sprintf(buffer + len, "'%.8s' '%.16s' 0x%x\n",
+	seq_printf(m, "'%.8s' '%.16s' 0x%x\n",
 			devinfo->vendor, devinfo->model, devinfo->flags);
-		len += size;
-		pos = begin + len;
-		if (pos < offset) {
-			len = 0;
-			begin = pos;
-		}
-		if (pos > offset + length)
-			goto stop_output;
-	}
+	return 0;
+}
+
+static void * devinfo_seq_start(struct seq_file *m, loff_t *pos)
+{
+	return seq_list_start(&scsi_dev_info_list, *pos);
+}
 
-stop_output:
-	*start = buffer + (offset - begin);	/* Start of wanted data */
-	len -= (offset - begin);	/* Start slop */
-	if (len > length)
-		len = length;	/* Ending slop */
-	return (len);
+static void * devinfo_seq_next(struct seq_file *m, void *v, loff_t *pos)
+{
+	return seq_list_next(v, &scsi_dev_info_list, pos);
+}
+
+static void devinfo_seq_stop(struct seq_file *m, void *v)
+{
+}
+
+static const struct seq_operations scsi_devinfo_seq_ops = {
+	.start	= devinfo_seq_start,
+	.next	= devinfo_seq_next,
+	.stop	= devinfo_seq_stop,
+	.show	= devinfo_seq_show,
+};
+
+static int proc_scsi_devinfo_open(struct inode *inode, struct file *file)
+{
+	return seq_open(file, &scsi_devinfo_seq_ops);
 }
 
 /* 
@@ -489,11 +492,12 @@ stop_output:
  * integer value of flag to the scsi device info list.
  * To use, echo "vendor:model:flag" > /proc/scsi/device_info
  */
-static int proc_scsi_devinfo_write(struct file *file, const char __user *buf,
-				   unsigned long length, void *data)
+static ssize_t proc_scsi_devinfo_write(struct file *file,
+				       const char __user *buf,
+				       size_t length, loff_t *ppos)
 {
 	char *buffer;
-	int err = length;
+	ssize_t err = length;
 
 	if (!buf || length>PAGE_SIZE)
 		return -EINVAL;
@@ -517,6 +521,15 @@ out:
 	free_page((unsigned long)buffer);
 	return err;
 }
+
+static const struct file_operations scsi_devinfo_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= proc_scsi_devinfo_open,
+	.read		= seq_read,
+	.write		= proc_scsi_devinfo_write,
+	.llseek		= seq_lseek,
+	.release	= seq_release,
+};
 #endif /* CONFIG_SCSI_PROC_FS */
 
 module_param_string(dev_flags, scsi_dev_flags, sizeof(scsi_dev_flags), 0);
@@ -549,7 +562,7 @@ void scsi_exit_devinfo(void)
 }
 
 /**
- * scsi_dev_list_init - set up the dynamic device list.
+ * scsi_init_devinfo - set up the dynamic device list.
  *
  * Description:
  * 	Add command line entries from scsi_dev_flags, then add
@@ -577,15 +590,13 @@ int __init scsi_init_devinfo(void)
 	}
 
 #ifdef CONFIG_SCSI_PROC_FS
-	p = create_proc_entry("scsi/device_info", 0, NULL);
+	p = proc_create("scsi/device_info", 0, NULL, &scsi_devinfo_proc_fops);
 	if (!p) {
 		error = -ENOMEM;
 		goto out;
 	}
 
 	p->owner = THIS_MODULE;
-	p->get_info = proc_scsi_devinfo_read;
-	p->write_proc = proc_scsi_devinfo_write;
 #endif /* CONFIG_SCSI_PROC_FS */
 
  out: