From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 31 Mar 2013 17:27:56 +0000 (-0400)
Subject: scsi: bury ->proc_info()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=70ef457dc92bdd03c0c8d640fce45909166983a1;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

scsi: bury ->proc_info()

all users converted to ->show_info()/->write_info()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

diff --git a/drivers/scsi/scsi_proc.c b/drivers/scsi/scsi_proc.c
index 6f4c3cff03bb..1670ba7ad6af 100644
--- a/drivers/scsi/scsi_proc.c
+++ b/drivers/scsi/scsi_proc.c
@@ -45,58 +45,6 @@ static struct proc_dir_entry *proc_scsi;
 /* Protect sht->present and sht->proc_dir */
 static DEFINE_MUTEX(global_host_template_mutex);
 
-/**
- * proc_scsi_read - handle read from /proc by calling host's proc_info() command
- * @buffer: passed to proc_info
- * @start: passed to proc_info
- * @offset: passed to proc_info
- * @length: passed to proc_info
- * @eof: returns whether length read was less than requested
- * @data: pointer to a &struct Scsi_Host
- */
-
-static int proc_scsi_read(char *buffer, char **start, off_t offset,
-			  int length, int *eof, void *data)
-{
-	struct Scsi_Host *shost = data;
-	int n;
-
-	n = shost->hostt->proc_info(shost, buffer, start, offset, length, 0);
-	*eof = (n < length);
-
-	return n;
-}
-
-/**
- * proc_scsi_write_proc - Handle write to /proc by calling host's proc_info()
- * @file: not used
- * @buf: source of data to write.
- * @count: number of bytes (at most PROC_BLOCK_SIZE) to write.
- * @data: pointer to &struct Scsi_Host
- */
-static int proc_scsi_write_proc(struct file *file, const char __user *buf,
-                           unsigned long count, void *data)
-{
-	struct Scsi_Host *shost = data;
-	ssize_t ret = -ENOMEM;
-	char *page;
-	char *start;
-    
-	if (count > PROC_BLOCK_SIZE)
-		return -EOVERFLOW;
-
-	page = (char *)__get_free_page(GFP_KERNEL);
-	if (page) {
-		ret = -EFAULT;
-		if (copy_from_user(page, buf, count))
-			goto out;
-		ret = shost->hostt->proc_info(shost, page, &start, 0, count, 1);
-	}
-out:
-	free_page((unsigned long)page);
-	return ret;
-}
-
 static ssize_t proc_scsi_host_write(struct file *file, const char __user *buf,
                            size_t count, loff_t *ppos)
 {
@@ -149,7 +97,7 @@ static const struct file_operations proc_scsi_fops = {
 
 void scsi_proc_hostdir_add(struct scsi_host_template *sht)
 {
-	if (!sht->proc_info && !sht->show_info)
+	if (!sht->show_info)
 		return;
 
 	mutex_lock(&global_host_template_mutex);
@@ -168,7 +116,7 @@ void scsi_proc_hostdir_add(struct scsi_host_template *sht)
  */
 void scsi_proc_hostdir_rm(struct scsi_host_template *sht)
 {
-	if (!sht->proc_info && !sht->show_info)
+	if (!sht->show_info)
 		return;
 
 	mutex_lock(&global_host_template_mutex);
@@ -194,23 +142,12 @@ void scsi_proc_host_add(struct Scsi_Host *shost)
 		return;
 
 	sprintf(name,"%d", shost->host_no);
-	if (sht->show_info) {
-		p = proc_create_data(name, S_IRUGO | S_IWUSR,
-			sht->proc_dir, &proc_scsi_fops, shost);
-		if (!p)
-			goto Fail;
-		return;
-	}
-	p = create_proc_read_entry(name, S_IFREG | S_IRUGO | S_IWUSR,
-			sht->proc_dir, proc_scsi_read, shost);
-	if (p) {
-		p->write_proc = proc_scsi_write_proc;
-		return;
-	}
-Fail:
-	printk(KERN_ERR "%s: Failed to register host %d in"
-	       "%s\n", __func__, shost->host_no,
-	       sht->proc_name);
+	p = proc_create_data(name, S_IRUGO | S_IWUSR,
+		sht->proc_dir, &proc_scsi_fops, shost);
+	if (!p)
+		printk(KERN_ERR "%s: Failed to register host %d in"
+		       "%s\n", __func__, shost->host_no,
+		       sht->proc_name);
 }
 
 /**
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index 70e08e442bfc..755243572219 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -341,7 +341,6 @@ struct scsi_host_template {
 	 *
 	 * Status: OBSOLETE
 	 */
-	int (*proc_info)(struct Scsi_Host *, char *, char **, off_t, int, int);
 	int (*show_info)(struct seq_file *, struct Scsi_Host *);
 	int (*write_info)(struct Scsi_Host *, char *, int);
 
@@ -378,7 +377,7 @@ struct scsi_host_template {
 
 	/*
 	 * Used to store the procfs directory if a driver implements the
-	 * proc_info or show_info method.
+	 * show_info method.
 	 */
 	struct proc_dir_entry *proc_dir;