From 0ecc833bac594099505a090cbca6ccd5b83d5975 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 29 Mar 2013 12:23:28 -0400
Subject: mode_t, whack-a-mole at 11...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 drivers/staging/dgrp/dgrp_common.h   | 2 +-
 drivers/staging/dgrp/dgrp_specproc.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'drivers/staging/dgrp')

diff --git a/drivers/staging/dgrp/dgrp_common.h b/drivers/staging/dgrp/dgrp_common.h
index 0583fe9c7b03..fde116236e98 100644
--- a/drivers/staging/dgrp/dgrp_common.h
+++ b/drivers/staging/dgrp/dgrp_common.h
@@ -120,7 +120,7 @@ enum {
 struct dgrp_proc_entry {
 	int                  id;          /* Integer identifier */
 	const char        *name;          /* ASCII identifier */
-	mode_t             mode;          /* File access permissions */
+	umode_t            mode;          /* File access permissions */
 	struct dgrp_proc_entry *child;    /* Child pointer */
 
 	/* file ops to use, pass NULL to use default */
diff --git a/drivers/staging/dgrp/dgrp_specproc.c b/drivers/staging/dgrp/dgrp_specproc.c
index 73f287f96604..dddf8a2e396b 100644
--- a/drivers/staging/dgrp/dgrp_specproc.c
+++ b/drivers/staging/dgrp/dgrp_specproc.c
@@ -228,7 +228,7 @@ static void register_proc_table(struct dgrp_proc_entry *table,
 {
 	struct proc_dir_entry *de;
 	int len;
-	mode_t mode;
+	umode_t mode;
 
 	if (table == NULL)
 		return;
-- 
cgit 


From aa66d7bba7c25ab2aefad9dad01c485b04dc4cbe Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 29 Mar 2013 20:39:17 -0400
Subject: dgrp procfs fixes, part 1

proc_create() has shat upon fops argument when mode is S_IFDIR.
Good thing, too, since fops passed to it is completely useless
for any directory.  Just use proc_mkdir(), damnit.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 drivers/staging/dgrp/dgrp_specproc.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'drivers/staging/dgrp')

diff --git a/drivers/staging/dgrp/dgrp_specproc.c b/drivers/staging/dgrp/dgrp_specproc.c
index dddf8a2e396b..556cb3124da6 100644
--- a/drivers/staging/dgrp/dgrp_specproc.c
+++ b/drivers/staging/dgrp/dgrp_specproc.c
@@ -201,8 +201,7 @@ void dgrp_register_proc(void)
 	/*
 	 *	Register /proc/dgrp
 	 */
-	dgrp_proc_dir_entry = proc_create("dgrp", S_IFDIR, NULL,
-					  &dgrp_proc_file_ops);
+	dgrp_proc_dir_entry = proc_mkdir("dgrp", NULL);
 	register_proc_table(dgrp_table, dgrp_proc_dir_entry);
 }
 
-- 
cgit 


From 878c68c6c2a28e3c3a62f723e0eaa2fd02297594 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 29 Mar 2013 20:45:38 -0400
Subject: dgrp procfs fixes, part 2

All table entries either have non-NULL ->proc_file_fops or
non-NULL child.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 drivers/staging/dgrp/dgrp_specproc.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

(limited to 'drivers/staging/dgrp')

diff --git a/drivers/staging/dgrp/dgrp_specproc.c b/drivers/staging/dgrp/dgrp_specproc.c
index 556cb3124da6..23b10f365bc3 100644
--- a/drivers/staging/dgrp/dgrp_specproc.c
+++ b/drivers/staging/dgrp/dgrp_specproc.c
@@ -269,10 +269,7 @@ static void register_proc_table(struct dgrp_proc_entry *table,
 			de->data = (void *) table;
 			if (!table->child) {
 				de->proc_iops = &proc_inode_ops;
-				if (table->proc_file_ops)
-					de->proc_fops = table->proc_file_ops;
-				else
-					de->proc_fops = &dgrp_proc_file_ops;
+				de->proc_fops = table->proc_file_ops;
 			}
 		}
 		table->de = de;
-- 
cgit 


From 772317b53b51e5895e953828c8ff4f06fecfad1c Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 29 Mar 2013 20:49:43 -0400
Subject: dgrp procfs fixes, part 3: kill dead code

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 drivers/staging/dgrp/dgrp_specproc.c | 63 ------------------------------------
 1 file changed, 63 deletions(-)

(limited to 'drivers/staging/dgrp')

diff --git a/drivers/staging/dgrp/dgrp_specproc.c b/drivers/staging/dgrp/dgrp_specproc.c
index 23b10f365bc3..1ccf10ce85cd 100644
--- a/drivers/staging/dgrp/dgrp_specproc.c
+++ b/drivers/staging/dgrp/dgrp_specproc.c
@@ -55,17 +55,9 @@ static void register_dgrp_device(struct nd_struct *node,
 				 void (*register_hook)(struct proc_dir_entry *de));
 
 /* File operation declarations */
-static int dgrp_gen_proc_open(struct inode *, struct file *);
-static int dgrp_gen_proc_close(struct inode *, struct file *);
 static int parse_write_config(char *);
 
 
-static const struct file_operations dgrp_proc_file_ops = {
-	.owner   = THIS_MODULE,
-	.open    = dgrp_gen_proc_open,
-	.release = dgrp_gen_proc_close,
-};
-
 static struct inode_operations proc_inode_ops = {
 	.permission = dgrp_inode_permission
 };
@@ -347,61 +339,6 @@ static void unregister_proc_table(struct dgrp_proc_entry *table,
 	}
 }
 
-static int dgrp_gen_proc_open(struct inode *inode, struct file *file)
-{
-	struct proc_dir_entry *de;
-	struct dgrp_proc_entry *entry;
-	int ret = 0;
-
-	de = (struct proc_dir_entry *) PDE(file_inode(file));
-	if (!de || !de->data) {
-		ret = -ENXIO;
-		goto done;
-	}
-
-	entry = (struct dgrp_proc_entry *) de->data;
-	if (!entry) {
-		ret = -ENXIO;
-		goto done;
-	}
-
-	down(&entry->excl_sem);
-
-	if (entry->excl_cnt)
-		ret = -EBUSY;
-	else
-		entry->excl_cnt++;
-
-	up(&entry->excl_sem);
-
-done:
-	return ret;
-}
-
-static int dgrp_gen_proc_close(struct inode *inode, struct file *file)
-{
-	struct proc_dir_entry *de;
-	struct dgrp_proc_entry *entry;
-
-	de = (struct proc_dir_entry *) PDE(file_inode(file));
-	if (!de || !de->data)
-		goto done;
-
-	entry = (struct dgrp_proc_entry *) de->data;
-	if (!entry)
-		goto done;
-
-	down(&entry->excl_sem);
-
-	if (entry->excl_cnt)
-		entry->excl_cnt = 0;
-
-	up(&entry->excl_sem);
-
-done:
-	return 0;
-}
-
 static void *dgrp_config_proc_start(struct seq_file *m, loff_t *pos)
 {
 	return seq_list_start_head(&nd_struct_list, *pos);
-- 
cgit 


From 08f3d07ddd53ca3bf322ddebc0f8992e3112520f Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 30 Mar 2013 00:36:23 -0400
Subject: dgrp procfs fixes, part 4: get rid of sysctl-like machinery

racy and very overblown...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 drivers/staging/dgrp/dgrp_common.h   |  55 --------
 drivers/staging/dgrp/dgrp_specproc.c | 257 ++++++-----------------------------
 2 files changed, 42 insertions(+), 270 deletions(-)

(limited to 'drivers/staging/dgrp')

diff --git a/drivers/staging/dgrp/dgrp_common.h b/drivers/staging/dgrp/dgrp_common.h
index fde116236e98..99e231c3c602 100644
--- a/drivers/staging/dgrp/dgrp_common.h
+++ b/drivers/staging/dgrp/dgrp_common.h
@@ -76,61 +76,6 @@ extern void dgrp_create_tty_sysfs(struct un_struct *un, struct device *c);
 extern void dgrp_remove_tty_sysfs(struct device *c);
 
 /* from dgrp_specproc.c */
-/*
- *  The list of DGRP entries with r/w capabilities.  These
- *  magic numbers are used for identification purposes.
- */
-enum {
-	DGRP_CONFIG = 1,	/* Configure portservers */
-	DGRP_NETDIR = 2,	/* Directory for "net" devices */
-	DGRP_MONDIR = 3,	/* Directory for "mon" devices */
-	DGRP_PORTSDIR = 4,	/* Directory for "ports" devices */
-	DGRP_INFO = 5,		/* Get info. about the running module */
-	DGRP_NODEINFO = 6,	/* Get info. about the configured nodes */
-	DGRP_DPADIR = 7,	/* Directory for the "dpa" devices */
-};
-
-/*
- *  Directions for proc handlers
- */
-enum {
-	INBOUND = 1,		/* Data being written to kernel */
-	OUTBOUND = 2,		/* Data being read from the kernel */
-};
-
-/**
- * dgrp_proc_entry: structure for dgrp proc dirs
- * @id: ID number associated with this particular entry.  Should be
- *    unique across all of DGRP.
- * @name: text name associated with the /proc entry
- * @mode: file access permisssions for the /proc entry
- * @child: pointer to table describing a subdirectory for this entry
- * @de: pointer to directory entry for this object once registered.  Used
- *    to grab the handle of the object for unregistration
- * @excl_sem: semaphore to provide exclusive to struct
- * @excl_cnt: counter of current accesses
- *
- *  Each entry in a DGRP proc directory is described with a
- *  dgrp_proc_entry structure.  A collection of these
- *  entries (in an array) represents the members associated
- *  with a particular /proc directory, and is referred to
- *  as a table.  All tables are terminated by an entry with
- *  zeros for every member.
- */
-struct dgrp_proc_entry {
-	int                  id;          /* Integer identifier */
-	const char        *name;          /* ASCII identifier */
-	umode_t            mode;          /* File access permissions */
-	struct dgrp_proc_entry *child;    /* Child pointer */
-
-	/* file ops to use, pass NULL to use default */
-	struct file_operations *proc_file_ops;
-
-	struct proc_dir_entry *de;        /* proc entry pointer */
-	struct semaphore   excl_sem;      /* Protects exclusive access var */
-	int                excl_cnt;      /* Counts number of curr accesses */
-};
-
 extern void dgrp_unregister_proc(void);
 extern void dgrp_register_proc(void);
 
diff --git a/drivers/staging/dgrp/dgrp_specproc.c b/drivers/staging/dgrp/dgrp_specproc.c
index 1ccf10ce85cd..caf4faccf42d 100644
--- a/drivers/staging/dgrp/dgrp_specproc.c
+++ b/drivers/staging/dgrp/dgrp_specproc.c
@@ -44,7 +44,6 @@
 
 #include "dgrp_common.h"
 
-static struct dgrp_proc_entry dgrp_table[];
 static struct proc_dir_entry *dgrp_proc_dir_entry;
 
 static int dgrp_add_id(long id);
@@ -63,16 +62,6 @@ static struct inode_operations proc_inode_ops = {
 };
 
 
-static void register_proc_table(struct dgrp_proc_entry *,
-				struct proc_dir_entry *);
-static void unregister_proc_table(struct dgrp_proc_entry *,
-				  struct proc_dir_entry *);
-
-static struct dgrp_proc_entry dgrp_net_table[];
-static struct dgrp_proc_entry dgrp_mon_table[];
-static struct dgrp_proc_entry dgrp_ports_table[];
-static struct dgrp_proc_entry dgrp_dpa_table[];
-
 static ssize_t dgrp_config_proc_write(struct file *file,
 				      const char __user *buffer,
 				      size_t count, loff_t *pos);
@@ -106,72 +95,11 @@ static struct file_operations nodeinfo_proc_file_ops = {
 	.release = seq_release,
 };
 
-static struct dgrp_proc_entry dgrp_table[] = {
-	{
-		.id = DGRP_CONFIG,
-		.name = "config",
-		.mode = 0644,
-		.proc_file_ops = &config_proc_file_ops,
-	},
-	{
-		.id = DGRP_INFO,
-		.name = "info",
-		.mode = 0644,
-		.proc_file_ops = &info_proc_file_ops,
-	},
-	{
-		.id = DGRP_NODEINFO,
-		.name = "nodeinfo",
-		.mode = 0644,
-		.proc_file_ops = &nodeinfo_proc_file_ops,
-	},
-	{
-		.id = DGRP_NETDIR,
-		.name = "net",
-		.mode = 0500,
-		.child = dgrp_net_table
-	},
-	{
-		.id = DGRP_MONDIR,
-		.name = "mon",
-		.mode = 0500,
-		.child = dgrp_mon_table
-	},
-	{
-		.id = DGRP_PORTSDIR,
-		.name = "ports",
-		.mode = 0500,
-		.child = dgrp_ports_table
-	},
-	{
-		.id = DGRP_DPADIR,
-		.name = "dpa",
-		.mode = 0500,
-		.child = dgrp_dpa_table
-	}
-};
-
 static struct proc_dir_entry *net_entry_pointer;
 static struct proc_dir_entry *mon_entry_pointer;
 static struct proc_dir_entry *dpa_entry_pointer;
 static struct proc_dir_entry *ports_entry_pointer;
 
-static struct dgrp_proc_entry dgrp_net_table[] = {
-	{0}
-};
-
-static struct dgrp_proc_entry dgrp_mon_table[] = {
-	{0}
-};
-
-static struct dgrp_proc_entry dgrp_ports_table[] = {
-	{0}
-};
-
-static struct dgrp_proc_entry dgrp_dpa_table[] = {
-	{0}
-};
-
 void dgrp_unregister_proc(void)
 {
 	net_entry_pointer = NULL;
@@ -180,163 +108,62 @@ void dgrp_unregister_proc(void)
 	ports_entry_pointer = NULL;
 
 	if (dgrp_proc_dir_entry) {
-		unregister_proc_table(dgrp_table, dgrp_proc_dir_entry);
-		remove_proc_entry(dgrp_proc_dir_entry->name,
-				  dgrp_proc_dir_entry->parent);
+		struct nd_struct *nd;
+		list_for_each_entry(nd, &nd_struct_list, list) {
+			if (nd->nd_net_de) {
+				unregister_dgrp_device(nd->nd_net_de);
+				dgrp_remove_node_class_sysfs_files(nd);
+			}
+
+			if (nd->nd_mon_de)
+				unregister_dgrp_device(nd->nd_mon_de);
+
+			if (nd->nd_dpa_de)
+				unregister_dgrp_device(nd->nd_dpa_de);
+
+			if (nd->nd_ports_de)
+				unregister_dgrp_device(nd->nd_ports_de);
+		}
+		remove_proc_entry("dgrp/config", NULL);
+		remove_proc_entry("dgrp/info", NULL);
+		remove_proc_entry("dgrp/nodeinfo", NULL);
+		remove_proc_entry("dgrp/net", NULL);
+		remove_proc_entry("dgrp/mon", NULL);
+		remove_proc_entry("dgrp/dpa", NULL);
+		remove_proc_entry("dgrp/ports", NULL);
+		remove_proc_entry("dgrp", NULL);
 		dgrp_proc_dir_entry = NULL;
 	}
-
 }
 
 void dgrp_register_proc(void)
 {
+	struct proc_dir_entry *de;
 	/*
 	 *	Register /proc/dgrp
 	 */
 	dgrp_proc_dir_entry = proc_mkdir("dgrp", NULL);
-	register_proc_table(dgrp_table, dgrp_proc_dir_entry);
-}
-
-/*
- * /proc/sys support
- */
-static int dgrp_proc_match(int len, const char *name, struct proc_dir_entry *de)
-{
-	if (!de || !de->low_ino)
-		return 0;
-	if (de->namelen != len)
-		return 0;
-	return !memcmp(name, de->name, len);
-}
-
-
-/*
- *  Scan the entries in table and add them all to /proc at the position
- *  referred to by "root"
- */
-static void register_proc_table(struct dgrp_proc_entry *table,
-				struct proc_dir_entry *root)
-{
-	struct proc_dir_entry *de;
-	int len;
-	umode_t mode;
-
-	if (table == NULL)
+	if (!dgrp_proc_dir_entry)
 		return;
-	if (root == NULL)
-		return;
-
-	for (; table->id; table++) {
-		/* Can't do anything without a proc name. */
-		if (!table->name)
-			continue;
-
-		/* Maybe we can't do anything with it... */
-		if (!table->proc_file_ops &&
-		    !table->child) {
-			pr_warn("dgrp: Can't register %s\n",
-				table->name);
-			continue;
-		}
-
-		len = strlen(table->name);
-		mode = table->mode;
-
-		de = NULL;
-		if (!table->child)
-			mode |= S_IFREG;
-		else {
-			mode |= S_IFDIR;
-			for (de = root->subdir; de; de = de->next) {
-				if (dgrp_proc_match(len, table->name, de))
-					break;
-			}
-			/* If the subdir exists already, de is non-NULL */
-		}
-
-		if (!de) {
-			de = create_proc_entry(table->name, mode, root);
-			if (!de)
-				continue;
-			de->data = (void *) table;
-			if (!table->child) {
-				de->proc_iops = &proc_inode_ops;
-				de->proc_fops = table->proc_file_ops;
-			}
-		}
-		table->de = de;
-		if (de->mode & S_IFDIR)
-			register_proc_table(table->child, de);
-
-		if (table->id == DGRP_NETDIR)
-			net_entry_pointer = de;
-
-		if (table->id == DGRP_MONDIR)
-			mon_entry_pointer = de;
-
-		if (table->id == DGRP_DPADIR)
-			dpa_entry_pointer = de;
-
-		if (table->id == DGRP_PORTSDIR)
-			ports_entry_pointer = de;
+	de = create_proc_entry("dgrp/config", 0644, NULL);
+	if (de) {
+		de->proc_fops = &config_proc_file_ops;
+		de->proc_iops = &proc_inode_ops;
 	}
-}
-
-/*
- * Unregister a /proc sysctl table and any subdirectories.
- */
-static void unregister_proc_table(struct dgrp_proc_entry *table,
-				  struct proc_dir_entry *root)
-{
-	struct proc_dir_entry *de;
-	struct nd_struct *tmp;
-
-	if (table == NULL)
-		return;
-
-	list_for_each_entry(tmp, &nd_struct_list, list) {
-		if ((table == dgrp_net_table) && (tmp->nd_net_de)) {
-			unregister_dgrp_device(tmp->nd_net_de);
-			dgrp_remove_node_class_sysfs_files(tmp);
-		}
-
-		if ((table == dgrp_mon_table) && (tmp->nd_mon_de))
-			unregister_dgrp_device(tmp->nd_mon_de);
-
-		if ((table == dgrp_dpa_table) && (tmp->nd_dpa_de))
-			unregister_dgrp_device(tmp->nd_dpa_de);
-
-		if ((table == dgrp_ports_table) && (tmp->nd_ports_de))
-			unregister_dgrp_device(tmp->nd_ports_de);
+	de = create_proc_entry("dgrp/info", 0644, NULL);
+	if (de) {
+		de->proc_fops = &info_proc_file_ops;
+		de->proc_iops = &proc_inode_ops;
 	}
-
-	for (; table->id; table++) {
-		de = table->de;
-
-		if (!de)
-			continue;
-		if (de->mode & S_IFDIR) {
-			if (!table->child) {
-				pr_alert("dgrp: malformed sysctl tree on free\n");
-				continue;
-			}
-			unregister_proc_table(table->child, de);
-
-	/* Don't unregister directories which still have entries */
-			if (de->subdir)
-				continue;
-		}
-
-		/* Don't unregister proc entries that are still being used.. */
-		if ((atomic_read(&de->count)) != 1) {
-			pr_alert("proc entry %s in use, not removing\n",
-				de->name);
-			continue;
-		}
-
-		remove_proc_entry(de->name, de->parent);
-		table->de = NULL;
+	de = create_proc_entry("dgrp/nodeinfo", 0644, NULL);
+	if (de) {
+		de->proc_fops = &nodeinfo_proc_file_ops;
+		de->proc_iops = &proc_inode_ops;
 	}
+	net_entry_pointer = proc_mkdir_mode("dgrp/net", 0500, NULL);
+	mon_entry_pointer = proc_mkdir_mode("dgrp/mon", 0500, NULL);
+	dpa_entry_pointer = proc_mkdir_mode("dgrp/dpa", 0500, NULL);
+	ports_entry_pointer = proc_mkdir_mode("dgrp/ports", 0500, NULL);
 }
 
 static void *dgrp_config_proc_start(struct seq_file *m, loff_t *pos)
-- 
cgit 


From af064cdde64d58feb315dba268e1f8439fb935be Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 30 Mar 2013 01:03:53 -0400
Subject: dgrp procfs fixes, part 5: per-node files

this "hooks" scheme is pointless - just make file_operations non-static
and consolidate initialiazation bits.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 drivers/staging/dgrp/dgrp_common.h    |  8 +--
 drivers/staging/dgrp/dgrp_dpa_ops.c   | 19 +------
 drivers/staging/dgrp/dgrp_mon_ops.c   | 16 +-----
 drivers/staging/dgrp/dgrp_net_ops.c   | 19 +------
 drivers/staging/dgrp/dgrp_ports_ops.c | 16 +-----
 drivers/staging/dgrp/dgrp_specproc.c  | 96 ++++++++++++++---------------------
 6 files changed, 45 insertions(+), 129 deletions(-)

(limited to 'drivers/staging/dgrp')

diff --git a/drivers/staging/dgrp/dgrp_common.h b/drivers/staging/dgrp/dgrp_common.h
index 99e231c3c602..81fc9ae155a0 100644
--- a/drivers/staging/dgrp/dgrp_common.h
+++ b/drivers/staging/dgrp/dgrp_common.h
@@ -49,20 +49,20 @@ extern struct dgrp_poll_data dgrp_poll_data;
 extern void dgrp_poll_handler(unsigned long arg);
 
 /* from dgrp_mon_ops.c */
-extern void dgrp_register_mon_hook(struct proc_dir_entry *de);
+extern const struct file_operations dgrp_mon_ops;
 
 /* from dgrp_tty.c */
 extern int dgrp_tty_init(struct nd_struct *nd);
 extern void dgrp_tty_uninit(struct nd_struct *nd);
 
 /* from dgrp_ports_ops.c */
-extern void dgrp_register_ports_hook(struct proc_dir_entry *de);
+extern const struct file_operations dgrp_ports_ops;
 
 /* from dgrp_net_ops.c */
-extern void dgrp_register_net_hook(struct proc_dir_entry *de);
+extern const struct file_operations dgrp_net_ops;
 
 /* from dgrp_dpa_ops.c */
-extern void dgrp_register_dpa_hook(struct proc_dir_entry *de);
+extern const struct file_operations dgrp_dpa_ops;
 extern void dgrp_dpa_data(struct nd_struct *, int, u8 *, int);
 
 /* from dgrp_sysfs.c */
diff --git a/drivers/staging/dgrp/dgrp_dpa_ops.c b/drivers/staging/dgrp/dgrp_dpa_ops.c
index 021cca498f2c..cfa8e82404f9 100644
--- a/drivers/staging/dgrp/dgrp_dpa_ops.c
+++ b/drivers/staging/dgrp/dgrp_dpa_ops.c
@@ -52,7 +52,7 @@ static long dgrp_dpa_ioctl(struct file *file, unsigned int cmd,
 			   unsigned long arg);
 static unsigned int dgrp_dpa_select(struct file *, struct poll_table_struct *);
 
-static const struct file_operations dpa_ops = {
+const struct file_operations dgrp_dpa_ops = {
 	.owner   =  THIS_MODULE,
 	.read    =  dgrp_dpa_read,
 	.poll    =  dgrp_dpa_select,
@@ -61,12 +61,6 @@ static const struct file_operations dpa_ops = {
 	.release =  dgrp_dpa_release,
 };
 
-static struct inode_operations dpa_inode_ops = {
-	.permission = dgrp_inode_permission
-};
-
-
-
 struct digi_node {
 	uint	nd_state;		/* Node state: 1 = up, 0 = down. */
 	uint	nd_chan_count;		/* Number of channels found */
@@ -111,17 +105,6 @@ struct digi_debug {
 #define DIGI_SETDEBUG      (('d'<<8) | 247)	/* set debug info */
 
 
-void dgrp_register_dpa_hook(struct proc_dir_entry *de)
-{
-	struct nd_struct *node = de->data;
-
-	de->proc_iops = &dpa_inode_ops;
-	de->proc_fops = &dpa_ops;
-
-	node->nd_dpa_de = de;
-	spin_lock_init(&node->nd_dpa_lock);
-}
-
 /*
  * dgrp_dpa_open -- open the DPA device for a particular PortServer
  */
diff --git a/drivers/staging/dgrp/dgrp_mon_ops.c b/drivers/staging/dgrp/dgrp_mon_ops.c
index 4792d056a365..52493b5c1673 100644
--- a/drivers/staging/dgrp/dgrp_mon_ops.c
+++ b/drivers/staging/dgrp/dgrp_mon_ops.c
@@ -49,7 +49,7 @@ static ssize_t dgrp_mon_read(struct file *, char __user *, size_t, loff_t *);
 static long dgrp_mon_ioctl(struct file *file, unsigned int cmd,
 			   unsigned long arg);
 
-static const struct file_operations mon_ops = {
+const struct file_operations dgrp_mon_ops = {
 	.owner   = THIS_MODULE,
 	.read    = dgrp_mon_read,
 	.unlocked_ioctl = dgrp_mon_ioctl,
@@ -57,20 +57,6 @@ static const struct file_operations mon_ops = {
 	.release = dgrp_mon_release,
 };
 
-static struct inode_operations mon_inode_ops = {
-	.permission = dgrp_inode_permission
-};
-
-void dgrp_register_mon_hook(struct proc_dir_entry *de)
-{
-	struct nd_struct *node = de->data;
-
-	de->proc_iops = &mon_inode_ops;
-	de->proc_fops = &mon_ops;
-	node->nd_mon_de = de;
-	sema_init(&node->nd_mon_semaphore, 1);
-}
-
 /**
  * dgrp_mon_open() -- open /proc/dgrp/ports device for a PortServer
  * @inode: struct inode *
diff --git a/drivers/staging/dgrp/dgrp_net_ops.c b/drivers/staging/dgrp/dgrp_net_ops.c
index e6018823b9de..dc826b2cf907 100644
--- a/drivers/staging/dgrp/dgrp_net_ops.c
+++ b/drivers/staging/dgrp/dgrp_net_ops.c
@@ -72,7 +72,7 @@ static long dgrp_net_ioctl(struct file *file, unsigned int cmd,
 static unsigned int dgrp_net_select(struct file *file,
 				    struct poll_table_struct *table);
 
-static const struct file_operations net_ops = {
+const struct file_operations dgrp_net_ops = {
 	.owner   =  THIS_MODULE,
 	.read    =  dgrp_net_read,
 	.write   =  dgrp_net_write,
@@ -82,23 +82,6 @@ static const struct file_operations net_ops = {
 	.release =  dgrp_net_release,
 };
 
-static struct inode_operations net_inode_ops = {
-	.permission = dgrp_inode_permission
-};
-
-void dgrp_register_net_hook(struct proc_dir_entry *de)
-{
-	struct nd_struct *node = de->data;
-
-	de->proc_iops = &net_inode_ops;
-	de->proc_fops = &net_ops;
-	node->nd_net_de = de;
-	sema_init(&node->nd_net_semaphore, 1);
-	node->nd_state = NS_CLOSED;
-	dgrp_create_node_class_sysfs_files(node);
-}
-
-
 /**
  * dgrp_dump() -- prints memory for debugging purposes.
  * @mem: Memory location which should be printed to the console
diff --git a/drivers/staging/dgrp/dgrp_ports_ops.c b/drivers/staging/dgrp/dgrp_ports_ops.c
index cd1fc2088624..48e9079c6355 100644
--- a/drivers/staging/dgrp/dgrp_ports_ops.c
+++ b/drivers/staging/dgrp/dgrp_ports_ops.c
@@ -47,7 +47,7 @@
 /* File operation declarations */
 static int dgrp_ports_open(struct inode *, struct file *);
 
-static const struct file_operations ports_ops = {
+const struct file_operations dgrp_ports_ops = {
 	.owner   = THIS_MODULE,
 	.open    = dgrp_ports_open,
 	.read    = seq_read,
@@ -55,20 +55,6 @@ static const struct file_operations ports_ops = {
 	.release = seq_release
 };
 
-static struct inode_operations ports_inode_ops = {
-	.permission = dgrp_inode_permission
-};
-
-
-void dgrp_register_ports_hook(struct proc_dir_entry *de)
-{
-	struct nd_struct *node = de->data;
-
-	de->proc_iops = &ports_inode_ops;
-	de->proc_fops = &ports_ops;
-	node->nd_ports_de = de;
-}
-
 static void *dgrp_ports_seq_start(struct seq_file *seq, loff_t *pos)
 {
 	if (*pos == 0)
diff --git a/drivers/staging/dgrp/dgrp_specproc.c b/drivers/staging/dgrp/dgrp_specproc.c
index caf4faccf42d..22c5d0bfe104 100644
--- a/drivers/staging/dgrp/dgrp_specproc.c
+++ b/drivers/staging/dgrp/dgrp_specproc.c
@@ -48,10 +48,9 @@ static struct proc_dir_entry *dgrp_proc_dir_entry;
 
 static int dgrp_add_id(long id);
 static int dgrp_remove_nd(struct nd_struct *nd);
-static void unregister_dgrp_device(struct proc_dir_entry *de);
-static void register_dgrp_device(struct nd_struct *node,
+static struct proc_dir_entry *add_proc_file(struct nd_struct *node,
 				 struct proc_dir_entry *root,
-				 void (*register_hook)(struct proc_dir_entry *de));
+				 const struct file_operations *fops);
 
 /* File operation declarations */
 static int parse_write_config(char *);
@@ -100,6 +99,21 @@ static struct proc_dir_entry *mon_entry_pointer;
 static struct proc_dir_entry *dpa_entry_pointer;
 static struct proc_dir_entry *ports_entry_pointer;
 
+static void remove_files(struct nd_struct *nd)
+{
+	char buf[3];
+	ID_TO_CHAR(nd->nd_ID, buf);
+	dgrp_remove_node_class_sysfs_files(nd);
+	if (nd->nd_net_de)
+		remove_proc_entry(buf, net_entry_pointer);
+	if (nd->nd_mon_de)
+		remove_proc_entry(buf, mon_entry_pointer);
+	if (nd->nd_dpa_de)
+		remove_proc_entry(buf, dpa_entry_pointer);
+	if (nd->nd_ports_de)
+		remove_proc_entry(buf, ports_entry_pointer);
+}
+
 void dgrp_unregister_proc(void)
 {
 	net_entry_pointer = NULL;
@@ -109,21 +123,8 @@ void dgrp_unregister_proc(void)
 
 	if (dgrp_proc_dir_entry) {
 		struct nd_struct *nd;
-		list_for_each_entry(nd, &nd_struct_list, list) {
-			if (nd->nd_net_de) {
-				unregister_dgrp_device(nd->nd_net_de);
-				dgrp_remove_node_class_sysfs_files(nd);
-			}
-
-			if (nd->nd_mon_de)
-				unregister_dgrp_device(nd->nd_mon_de);
-
-			if (nd->nd_dpa_de)
-				unregister_dgrp_device(nd->nd_dpa_de);
-
-			if (nd->nd_ports_de)
-				unregister_dgrp_device(nd->nd_ports_de);
-		}
+		list_for_each_entry(nd, &nd_struct_list, list)
+			remove_files(nd);
 		remove_proc_entry("dgrp/config", NULL);
 		remove_proc_entry("dgrp/info", NULL);
 		remove_proc_entry("dgrp/nodeinfo", NULL);
@@ -494,6 +495,10 @@ static int dgrp_add_id(long id)
 	init_waitqueue_head(&nd->nd_tx_waitq);
 	init_waitqueue_head(&nd->nd_mon_wqueue);
 	init_waitqueue_head(&nd->nd_dpa_wqueue);
+	sema_init(&nd->nd_mon_semaphore, 1);
+	sema_init(&nd->nd_net_semaphore, 1);
+	spin_lock_init(&nd->nd_dpa_lock);
+	nd->nd_state = NS_CLOSED;
 	for (i = 0; i < SEQ_MAX; i++)
 		init_waitqueue_head(&nd->nd_seq_wque[i]);
 
@@ -508,12 +513,12 @@ static int dgrp_add_id(long id)
 	if (ret)
 		goto error_out;
 
-	register_dgrp_device(nd, net_entry_pointer, dgrp_register_net_hook);
-	register_dgrp_device(nd, mon_entry_pointer, dgrp_register_mon_hook);
-	register_dgrp_device(nd, dpa_entry_pointer, dgrp_register_dpa_hook);
-	register_dgrp_device(nd, ports_entry_pointer,
-			      dgrp_register_ports_hook);
-
+	dgrp_create_node_class_sysfs_files(nd);
+	nd->nd_net_de = add_proc_file(nd, net_entry_pointer, &dgrp_net_ops);
+	nd->nd_mon_de = add_proc_file(nd, mon_entry_pointer, &dgrp_mon_ops);
+	nd->nd_dpa_de = add_proc_file(nd, dpa_entry_pointer, &dgrp_dpa_ops);
+	nd->nd_ports_de = add_proc_file(nd, ports_entry_pointer,
+					&dgrp_ports_ops);
 	return 0;
 
 	/* FIXME this guy should free the tty driver stored in nd and destroy
@@ -532,16 +537,7 @@ static int dgrp_remove_nd(struct nd_struct *nd)
 	if (nd->nd_tty_ref_cnt)
 		return -EBUSY;
 
-	if (nd->nd_net_de) {
-		unregister_dgrp_device(nd->nd_net_de);
-		dgrp_remove_node_class_sysfs_files(nd);
-	}
-
-	unregister_dgrp_device(nd->nd_mon_de);
-
-	unregister_dgrp_device(nd->nd_ports_de);
-
-	unregister_dgrp_device(nd->nd_dpa_de);
+	remove_files(nd);
 
 	dgrp_tty_uninit(nd);
 
@@ -553,9 +549,9 @@ static int dgrp_remove_nd(struct nd_struct *nd)
 	return 0;
 }
 
-static void register_dgrp_device(struct nd_struct *node,
+static struct proc_dir_entry *add_proc_file(struct nd_struct *node,
 				 struct proc_dir_entry *root,
-				 void (*register_hook)(struct proc_dir_entry *de))
+				 const struct file_operations *fops)
 {
 	char buf[3];
 	struct proc_dir_entry *de;
@@ -563,28 +559,10 @@ static void register_dgrp_device(struct nd_struct *node,
 	ID_TO_CHAR(node->nd_ID, buf);
 
 	de = create_proc_entry(buf, 0600 | S_IFREG, root);
-	if (!de)
-		return;
-
-	de->data = (void *) node;
-
-	if (register_hook)
-		register_hook(de);
-
-}
-
-static void unregister_dgrp_device(struct proc_dir_entry *de)
-{
-	if (!de)
-		return;
-
-	/* Don't unregister proc entries that are still being used.. */
-	if ((atomic_read(&de->count)) != 1) {
-		pr_alert("%s - proc entry %s in use. Not removing.\n",
-			 __func__, de->name);
-		return;
+	if (de) {
+		de->data = (void *) node;
+		de->proc_fops = fops;
+		de->proc_iops = &proc_inode_ops;
 	}
-
-	remove_proc_entry(de->name, de->parent);
-	de = NULL;
+	return de;
 }
-- 
cgit 


From 895b5599ba20cb663af9281050dc83cd7ae91843 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 30 Mar 2013 01:07:56 -0400
Subject: dgrp procfs fixes, part 6: just use proc_create{,_data}

->permission() of its own is a rudiment of sysctl imitation;
normal procfs logics will do just fine here, no need to
mess with ->proc_iops at all.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 drivers/staging/dgrp/dgrp_common.c   | 31 -------------------------------
 drivers/staging/dgrp/dgrp_common.h   |  2 --
 drivers/staging/dgrp/dgrp_specproc.c | 36 ++++--------------------------------
 3 files changed, 4 insertions(+), 65 deletions(-)

(limited to 'drivers/staging/dgrp')

diff --git a/drivers/staging/dgrp/dgrp_common.c b/drivers/staging/dgrp/dgrp_common.c
index 3553998b72bc..9a9b45624ba9 100644
--- a/drivers/staging/dgrp/dgrp_common.c
+++ b/drivers/staging/dgrp/dgrp_common.c
@@ -167,34 +167,3 @@ void dgrp_carrier(struct ch_struct *ch)
 		ch->ch_flag &= ~CH_PHYS_CD;
 
 }
-
-/**
- * dgrp_chk_perm() -- check permissions for net device
- * @inode: pointer to inode structure for the net communication device
- * @op: operation to be tested
- *
- * The file permissions and ownerships are tested to determine whether
- * the operation "op" is permitted on the file pointed to by the inode.
- * Returns 0 if the operation is permitted, -EACCESS otherwise
- */
-int dgrp_chk_perm(int mode, int op)
-{
-	if (!uid_eq(GLOBAL_ROOT_UID, current_euid()))
-		mode >>= 6;
-	else if (in_egroup_p(GLOBAL_ROOT_GID))
-		mode >>= 3;
-
-	if ((mode & op & 0007) == op)
-		return 0;
-
-	if (capable(CAP_SYS_ADMIN))
-		return 0;
-
-	return -EACCES;
-}
-
-/* dgrp_chk_perm wrapper for permission call in struct inode_operations */
-int dgrp_inode_permission(struct inode *inode, int op)
-{
-	return dgrp_chk_perm(inode->i_mode, op);
-}
diff --git a/drivers/staging/dgrp/dgrp_common.h b/drivers/staging/dgrp/dgrp_common.h
index 81fc9ae155a0..076dd6bc5ac4 100644
--- a/drivers/staging/dgrp/dgrp_common.h
+++ b/drivers/staging/dgrp/dgrp_common.h
@@ -89,8 +89,6 @@ extern void dgrp_register_proc(void);
  *-----------------------------------------------------------------------*/
 
 void dgrp_carrier(struct ch_struct *ch);
-extern int dgrp_inode_permission(struct inode *inode, int op);
-extern int dgrp_chk_perm(int mode, int op);
 
 
 /*
diff --git a/drivers/staging/dgrp/dgrp_specproc.c b/drivers/staging/dgrp/dgrp_specproc.c
index 22c5d0bfe104..99c993b13378 100644
--- a/drivers/staging/dgrp/dgrp_specproc.c
+++ b/drivers/staging/dgrp/dgrp_specproc.c
@@ -55,12 +55,6 @@ static struct proc_dir_entry *add_proc_file(struct nd_struct *node,
 /* File operation declarations */
 static int parse_write_config(char *);
 
-
-static struct inode_operations proc_inode_ops = {
-	.permission = dgrp_inode_permission
-};
-
-
 static ssize_t dgrp_config_proc_write(struct file *file,
 				      const char __user *buffer,
 				      size_t count, loff_t *pos);
@@ -139,28 +133,15 @@ void dgrp_unregister_proc(void)
 
 void dgrp_register_proc(void)
 {
-	struct proc_dir_entry *de;
 	/*
 	 *	Register /proc/dgrp
 	 */
 	dgrp_proc_dir_entry = proc_mkdir("dgrp", NULL);
 	if (!dgrp_proc_dir_entry)
 		return;
-	de = create_proc_entry("dgrp/config", 0644, NULL);
-	if (de) {
-		de->proc_fops = &config_proc_file_ops;
-		de->proc_iops = &proc_inode_ops;
-	}
-	de = create_proc_entry("dgrp/info", 0644, NULL);
-	if (de) {
-		de->proc_fops = &info_proc_file_ops;
-		de->proc_iops = &proc_inode_ops;
-	}
-	de = create_proc_entry("dgrp/nodeinfo", 0644, NULL);
-	if (de) {
-		de->proc_fops = &nodeinfo_proc_file_ops;
-		de->proc_iops = &proc_inode_ops;
-	}
+	proc_create("dgrp/config", 0644, NULL, &config_proc_file_ops);
+	proc_create("dgrp/info", 0644, NULL, &info_proc_file_ops);
+	proc_create("dgrp/nodeinfo", 0644, NULL, &nodeinfo_proc_file_ops);
 	net_entry_pointer = proc_mkdir_mode("dgrp/net", 0500, NULL);
 	mon_entry_pointer = proc_mkdir_mode("dgrp/mon", 0500, NULL);
 	dpa_entry_pointer = proc_mkdir_mode("dgrp/dpa", 0500, NULL);
@@ -554,15 +535,6 @@ static struct proc_dir_entry *add_proc_file(struct nd_struct *node,
 				 const struct file_operations *fops)
 {
 	char buf[3];
-	struct proc_dir_entry *de;
-
 	ID_TO_CHAR(node->nd_ID, buf);
-
-	de = create_proc_entry(buf, 0600 | S_IFREG, root);
-	if (de) {
-		de->data = (void *) node;
-		de->proc_fops = fops;
-		de->proc_iops = &proc_inode_ops;
-	}
-	return de;
+	return proc_create_data(buf, 0600, root, fops, node);
 }
-- 
cgit 


From d9dda78bad879595d8c4220a067fc029d6484a16 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 31 Mar 2013 18:16:14 -0400
Subject: procfs: new helper - PDE_DATA(inode)

The only part of proc_dir_entry the code outside of fs/proc
really cares about is PDE(inode)->data.  Provide a helper
for that; static inline for now, eventually will be moved
to fs/proc, along with the knowledge of struct proc_dir_entry
layout.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 drivers/staging/dgrp/dgrp_dpa_ops.c   | 9 +--------
 drivers/staging/dgrp/dgrp_mon_ops.c   | 9 +--------
 drivers/staging/dgrp/dgrp_net_ops.c   | 9 +--------
 drivers/staging/dgrp/dgrp_ports_ops.c | 2 +-
 4 files changed, 4 insertions(+), 25 deletions(-)

(limited to 'drivers/staging/dgrp')

diff --git a/drivers/staging/dgrp/dgrp_dpa_ops.c b/drivers/staging/dgrp/dgrp_dpa_ops.c
index cfa8e82404f9..43209c163a43 100644
--- a/drivers/staging/dgrp/dgrp_dpa_ops.c
+++ b/drivers/staging/dgrp/dgrp_dpa_ops.c
@@ -113,8 +113,6 @@ static int dgrp_dpa_open(struct inode *inode, struct file *file)
 	struct nd_struct *nd;
 	int rtn = 0;
 
-	struct proc_dir_entry *de;
-
 	rtn = try_module_get(THIS_MODULE);
 	if (!rtn)
 		return -ENXIO;
@@ -137,12 +135,7 @@ static int dgrp_dpa_open(struct inode *inode, struct file *file)
 	/*
 	 *  Get the node pointer, and fail if it doesn't exist.
 	 */
-	de = PDE(inode);
-	if (!de) {
-		rtn = -ENXIO;
-		goto done;
-	}
-	nd = (struct nd_struct *)de->data;
+	nd = PDE_DATA(inode);
 	if (!nd) {
 		rtn = -ENXIO;
 		goto done;
diff --git a/drivers/staging/dgrp/dgrp_mon_ops.c b/drivers/staging/dgrp/dgrp_mon_ops.c
index 52493b5c1673..6edbbf069150 100644
--- a/drivers/staging/dgrp/dgrp_mon_ops.c
+++ b/drivers/staging/dgrp/dgrp_mon_ops.c
@@ -67,7 +67,6 @@ const struct file_operations dgrp_mon_ops = {
 static int dgrp_mon_open(struct inode *inode, struct file *file)
 {
 	struct nd_struct *nd;
-	struct proc_dir_entry *de;
 	struct timeval tv;
 	uint32_t time;
 	u8 *buf;
@@ -95,13 +94,7 @@ static int dgrp_mon_open(struct inode *inode, struct file *file)
 	/*
 	 *  Get the node pointer, and fail if it doesn't exist.
 	 */
-	de = PDE(inode);
-	if (!de) {
-		rtn = -ENXIO;
-		goto done;
-	}
-
-	nd = (struct nd_struct *)de->data;
+	nd = PDE_DATA(inode);
 	if (!nd) {
 		rtn = -ENXIO;
 		goto done;
diff --git a/drivers/staging/dgrp/dgrp_net_ops.c b/drivers/staging/dgrp/dgrp_net_ops.c
index dc826b2cf907..5448fc78bcad 100644
--- a/drivers/staging/dgrp/dgrp_net_ops.c
+++ b/drivers/staging/dgrp/dgrp_net_ops.c
@@ -784,7 +784,6 @@ out_err:
 static int dgrp_net_open(struct inode *inode, struct file *file)
 {
 	struct nd_struct *nd;
-	struct proc_dir_entry *de;
 	ulong  lock_flags;
 	int rtn;
 
@@ -808,13 +807,7 @@ static int dgrp_net_open(struct inode *inode, struct file *file)
 	/*
 	 *  Get the node pointer, and fail if it doesn't exist.
 	 */
-	de = PDE(inode);
-	if (!de) {
-		rtn = -ENXIO;
-		goto done;
-	}
-
-	nd = (struct nd_struct *) de->data;
+	nd = PDE_DATA(inode);
 	if (!nd) {
 		rtn = -ENXIO;
 		goto done;
diff --git a/drivers/staging/dgrp/dgrp_ports_ops.c b/drivers/staging/dgrp/dgrp_ports_ops.c
index 48e9079c6355..4ce030815f27 100644
--- a/drivers/staging/dgrp/dgrp_ports_ops.c
+++ b/drivers/staging/dgrp/dgrp_ports_ops.c
@@ -149,7 +149,7 @@ static int dgrp_ports_open(struct inode *inode, struct file *file)
 	rtn = seq_open(file, &ports_seq_ops);
 	if (!rtn) {
 		seq = file->private_data;
-		seq->private = PDE(inode)->data;
+		seq->private = PDE_DATA(inode);
 	}
 
 	return rtn;
-- 
cgit 


From 75ef9de1267ba171ecefafca35758e2be0db10dc Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Thu, 4 Apr 2013 19:09:41 -0400
Subject: constify a bunch of struct file_operations instances

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 drivers/staging/dgrp/dgrp_specproc.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'drivers/staging/dgrp')

diff --git a/drivers/staging/dgrp/dgrp_specproc.c b/drivers/staging/dgrp/dgrp_specproc.c
index 99c993b13378..b990b2686ba9 100644
--- a/drivers/staging/dgrp/dgrp_specproc.c
+++ b/drivers/staging/dgrp/dgrp_specproc.c
@@ -63,7 +63,7 @@ static int dgrp_nodeinfo_proc_open(struct inode *inode, struct file *file);
 static int dgrp_info_proc_open(struct inode *inode, struct file *file);
 static int dgrp_config_proc_open(struct inode *inode, struct file *file);
 
-static struct file_operations config_proc_file_ops = {
+static const struct file_operations config_proc_file_ops = {
 	.owner	 = THIS_MODULE,
 	.open	 = dgrp_config_proc_open,
 	.read	 = seq_read,
@@ -72,7 +72,7 @@ static struct file_operations config_proc_file_ops = {
 	.write   = dgrp_config_proc_write,
 };
 
-static struct file_operations info_proc_file_ops = {
+static const struct file_operations info_proc_file_ops = {
 	.owner	 = THIS_MODULE,
 	.open	 = dgrp_info_proc_open,
 	.read	 = seq_read,
@@ -80,7 +80,7 @@ static struct file_operations info_proc_file_ops = {
 	.release = single_release,
 };
 
-static struct file_operations nodeinfo_proc_file_ops = {
+static const struct file_operations nodeinfo_proc_file_ops = {
 	.owner	 = THIS_MODULE,
 	.open	 = dgrp_nodeinfo_proc_open,
 	.read	 = seq_read,
-- 
cgit 


From 0d01ff2583086fd532181d2ee16112f5342eb78d Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Thu, 11 Apr 2013 23:51:01 +0100
Subject: Include missing linux/slab.h inclusions

Include missing linux/slab.h inclusions where the source file is currently
expecting to get kmalloc() and co. through linux/proc_fs.h.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
cc: linux-s390@vger.kernel.org
cc: sparclinux@vger.kernel.org
cc: linux-efi@vger.kernel.org
cc: linux-mtd@lists.infradead.org
cc: devel@driverdev.osuosl.org
cc: x86@kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 drivers/staging/dgrp/dgrp_dpa_ops.c  | 1 +
 drivers/staging/dgrp/dgrp_mon_ops.c  | 1 +
 drivers/staging/dgrp/dgrp_net_ops.c  | 2 +-
 drivers/staging/dgrp/dgrp_specproc.c | 1 +
 4 files changed, 4 insertions(+), 1 deletion(-)

(limited to 'drivers/staging/dgrp')

diff --git a/drivers/staging/dgrp/dgrp_dpa_ops.c b/drivers/staging/dgrp/dgrp_dpa_ops.c
index 43209c163a43..1fc13de4bdd6 100644
--- a/drivers/staging/dgrp/dgrp_dpa_ops.c
+++ b/drivers/staging/dgrp/dgrp_dpa_ops.c
@@ -40,6 +40,7 @@
 #include <linux/cred.h>
 #include <linux/sched.h>
 #include <linux/ratelimit.h>
+#include <linux/slab.h>
 #include <asm/unaligned.h>
 
 #include "dgrp_common.h"
diff --git a/drivers/staging/dgrp/dgrp_mon_ops.c b/drivers/staging/dgrp/dgrp_mon_ops.c
index 6edbbf069150..d18be4180e3b 100644
--- a/drivers/staging/dgrp/dgrp_mon_ops.c
+++ b/drivers/staging/dgrp/dgrp_mon_ops.c
@@ -37,6 +37,7 @@
 #include <linux/tty.h>
 #include <linux/sched.h>
 #include <asm/unaligned.h>
+#include <linux/slab.h>
 #include <linux/proc_fs.h>
 #include <linux/uaccess.h>
 
diff --git a/drivers/staging/dgrp/dgrp_net_ops.c b/drivers/staging/dgrp/dgrp_net_ops.c
index 5448fc78bcad..9914f1c5bcd3 100644
--- a/drivers/staging/dgrp/dgrp_net_ops.c
+++ b/drivers/staging/dgrp/dgrp_net_ops.c
@@ -35,7 +35,7 @@
 
 #include <linux/module.h>
 #include <linux/proc_fs.h>
-#include <linux/types.h>
+#include <linux/slab.h>
 #include <linux/string.h>
 #include <linux/device.h>
 #include <linux/tty.h>
diff --git a/drivers/staging/dgrp/dgrp_specproc.c b/drivers/staging/dgrp/dgrp_specproc.c
index b990b2686ba9..205d80ef4455 100644
--- a/drivers/staging/dgrp/dgrp_specproc.c
+++ b/drivers/staging/dgrp/dgrp_specproc.c
@@ -37,6 +37,7 @@
 #include <linux/sched.h>
 #include <linux/cred.h>
 #include <linux/proc_fs.h>
+#include <linux/slab.h>
 #include <linux/ctype.h>
 #include <linux/seq_file.h>
 #include <linux/uaccess.h>
-- 
cgit