[PATCH 54/69] staging: unisys: remove last remnants of proc entry code
Benjamin Romer
benjamin.romer at unisys.com
Mon Mar 16 17:58:37 UTC 2015
All of the proc code using easyproc and procobjecttree support is gone,
so we can remove it from the source entirely.
Signed-off-by: Benjamin Romer <benjamin.romer at unisys.com>
---
drivers/staging/unisys/visorutil/Makefile | 3 +-
drivers/staging/unisys/visorutil/easyproc.c | 356 ----------------------
drivers/staging/unisys/visorutil/easyproc.h | 92 ------
drivers/staging/unisys/visorutil/procobjecttree.c | 335 --------------------
4 files changed, 1 insertion(+), 785 deletions(-)
delete mode 100644 drivers/staging/unisys/visorutil/easyproc.c
delete mode 100644 drivers/staging/unisys/visorutil/easyproc.h
delete mode 100644 drivers/staging/unisys/visorutil/procobjecttree.c
diff --git a/drivers/staging/unisys/visorutil/Makefile b/drivers/staging/unisys/visorutil/Makefile
index d871bbb..d9ab5a3 100644
--- a/drivers/staging/unisys/visorutil/Makefile
+++ b/drivers/staging/unisys/visorutil/Makefile
@@ -4,7 +4,6 @@
obj-$(CONFIG_UNISYS_VISORUTIL) += visorutil.o
-visorutil-y := charqueue.o easyproc.o periodic_work.o procobjecttree.o \
- memregion_direct.o visorkmodutils.o
+visorutil-y := charqueue.o periodic_work.o memregion_direct.o visorkmodutils.o
ccflags-y += -Idrivers/staging/unisys/include
diff --git a/drivers/staging/unisys/visorutil/easyproc.c b/drivers/staging/unisys/visorutil/easyproc.c
deleted file mode 100644
index 3cb55d3..0000000
--- a/drivers/staging/unisys/visorutil/easyproc.c
+++ /dev/null
@@ -1,356 +0,0 @@
-/* Copyright (C) 2010 - 2013 UNISYS CORPORATION
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at
- * your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for more
- * details.
- */
-
-/** @file *********************************************************************
- *
- * Handle procfs-specific tasks.
- * Note that this file does not know about any module-specific things, nor
- * does it know anything about what information to reveal as part of the proc
- * entries. The 2 functions that take care of displaying device and
- * driver specific information are passed as parameters to
- * visor_easyproc_InitDriver().
- *
- * void show_device_info(struct seq_file *seq, void *p);
- * void show_driver_info(struct seq_file *seq);
- *
- * The second parameter to show_device_info is actually a pointer to the
- * device-specific info to show. It is the context that was originally
- * passed to visor_easyproc_InitDevice().
- *
- ******************************************************************************
- */
-
-#include <linux/proc_fs.h>
-
-#include "timskmod.h"
-#include "easyproc.h"
-
-#define MYDRVNAME "easyproc"
-
-
-
-/*
- * /proc/<ProcId> ProcDir
- * /proc/<ProcId>/driver ProcDriverDir
- * /proc/<ProcId>/driver/diag ProcDriverDiagFile
- * /proc/<ProcId>/device ProcDeviceDir
- * /proc/<ProcId>/device/0 procDevicexDir
- * /proc/<ProcId>/device/0/diag procDevicexDiagFile
- */
-
-
-static ssize_t proc_write_device(struct file *file, const char __user *buffer,
- size_t count, loff_t *ppos);
-static ssize_t proc_write_driver(struct file *file, const char __user *buffer,
- size_t count, loff_t *ppos);
-
-static struct proc_dir_entry *
- createProcDir(char *name, struct proc_dir_entry *parent)
-{
- struct proc_dir_entry *p = proc_mkdir_mode(name, S_IFDIR, parent);
- return p;
-}
-
-static int seq_show_driver(struct seq_file *seq, void *offset);
-static int proc_open_driver(struct inode *inode, struct file *file)
-{
- return single_open(file, seq_show_driver, PDE_DATA(inode));
-}
-static const struct file_operations proc_fops_driver = {
- .open = proc_open_driver,
- .read = seq_read,
- .write = proc_write_driver,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static int seq_show_device(struct seq_file *seq, void *offset);
-static int seq_show_device_property(struct seq_file *seq, void *offset);
-static int proc_open_device(struct inode *inode, struct file *file)
-{
- return single_open(file, seq_show_device, PDE_DATA(inode));
-}
-static const struct file_operations proc_fops_device = {
- .open = proc_open_device,
- .read = seq_read,
- .write = proc_write_device,
- .llseek = seq_lseek,
- .release = single_release,
-};
-static int proc_open_device_property(struct inode *inode, struct file *file)
-{
- return single_open(file, seq_show_device_property, PDE_DATA(inode));
-}
-static const struct file_operations proc_fops_device_property = {
- .open = proc_open_device_property,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-
-
-void visor_easyproc_InitDriver(struct easyproc_driver_info *pdriver,
- char *procId,
- void (*show_driver_info)(struct seq_file *),
- void (*show_device_info)(struct seq_file *,
- void *))
-{
- memset(pdriver, 0, sizeof(struct easyproc_driver_info));
- pdriver->ProcId = procId;
- pdriver->Show_driver_info = show_driver_info;
- pdriver->Show_device_info = show_device_info;
- if (pdriver->ProcDir == NULL)
- pdriver->ProcDir = createProcDir(pdriver->ProcId, NULL);
- if ((pdriver->ProcDir != NULL) && (pdriver->ProcDriverDir == NULL))
- pdriver->ProcDriverDir = createProcDir("driver",
- pdriver->ProcDir);
- if ((pdriver->ProcDir != NULL) && (pdriver->ProcDeviceDir == NULL))
- pdriver->ProcDeviceDir = createProcDir("device",
- pdriver->ProcDir);
- if ((pdriver->ProcDriverDir != NULL) &&
- (pdriver->ProcDriverDiagFile == NULL)) {
- pdriver->ProcDriverDiagFile =
- proc_create_data("diag", 0,
- pdriver->ProcDriverDir,
- &proc_fops_driver, pdriver);
- }
-}
-EXPORT_SYMBOL_GPL(visor_easyproc_InitDriver);
-
-
-
-void visor_easyproc_InitDriverEx(struct easyproc_driver_info *pdriver,
- char *procId,
- void (*show_driver_info)(struct seq_file *),
- void (*show_device_info)(struct seq_file *,
- void *),
- void (*write_driver_info)(char *buf,
- size_t count,
- loff_t *ppos),
- void (*write_device_info)(char *buf,
- size_t count,
- loff_t *ppos,
- void *p))
-{
- visor_easyproc_InitDriver(pdriver, procId,
- show_driver_info, show_device_info);
- pdriver->Write_driver_info = write_driver_info;
- pdriver->Write_device_info = write_device_info;
-}
-EXPORT_SYMBOL_GPL(visor_easyproc_InitDriverEx);
-
-
-
-void visor_easyproc_DeInitDriver(struct easyproc_driver_info *pdriver)
-{
- if (pdriver->ProcDriverDiagFile != NULL) {
- remove_proc_entry("diag", pdriver->ProcDriverDir);
- pdriver->ProcDriverDiagFile = NULL;
- }
- if (pdriver->ProcDriverDir != NULL) {
- remove_proc_entry("driver", pdriver->ProcDir);
- pdriver->ProcDriverDir = NULL;
- }
- if (pdriver->ProcDeviceDir != NULL) {
- remove_proc_entry("device", pdriver->ProcDir);
- pdriver->ProcDeviceDir = NULL;
- }
- if (pdriver->ProcDir != NULL) {
- remove_proc_entry(pdriver->ProcId, NULL);
- pdriver->ProcDir = NULL;
- }
- pdriver->ProcId = NULL;
- pdriver->Show_driver_info = NULL;
- pdriver->Show_device_info = NULL;
- pdriver->Write_driver_info = NULL;
- pdriver->Write_device_info = NULL;
-}
-EXPORT_SYMBOL_GPL(visor_easyproc_DeInitDriver);
-
-
-
-void visor_easyproc_InitDevice(struct easyproc_driver_info *pdriver,
- struct easyproc_device_info *p, int devno,
- void *devdata)
-{
- if ((pdriver->ProcDeviceDir != NULL) && (p->procDevicexDir == NULL)) {
- char s[29];
-
- sprintf(s, "%d", devno);
- p->procDevicexDir = createProcDir(s, pdriver->ProcDeviceDir);
- p->devno = devno;
- }
- p->devdata = devdata;
- p->pdriver = pdriver;
- p->devno = devno;
- if ((p->procDevicexDir != NULL) && (p->procDevicexDiagFile == NULL)) {
- p->procDevicexDiagFile =
- proc_create_data("diag", 0, p->procDevicexDir,
- &proc_fops_device, p);
- }
- memset(&(p->device_property_info[0]), 0,
- sizeof(p->device_property_info));
-}
-EXPORT_SYMBOL_GPL(visor_easyproc_InitDevice);
-
-
-
-void visor_easyproc_CreateDeviceProperty(struct easyproc_device_info *p,
- void (*show_property_info)
- (struct seq_file *, void *),
- char *property_name)
-{
- size_t i;
- struct easyproc_device_property_info *px = NULL;
-
- if (p->procDevicexDir == NULL)
- return;
- for (i = 0; i < ARRAY_SIZE(p->device_property_info); i++) {
- if (p->device_property_info[i].procEntry == NULL) {
- px = &(p->device_property_info[i]);
- break;
- }
- }
- if (!px)
- return;
-
- px->devdata = p->devdata;
- px->pdriver = p->pdriver;
- px->procEntry = proc_create_data(property_name, 0, p->procDevicexDir,
- &proc_fops_device_property, px);
- if (strlen(property_name)+1 > sizeof(px->property_name)) {
- return;
- }
- strcpy(px->property_name, property_name);
- if (px->procEntry == NULL) {
- return;
- }
- px->show_device_property_info = show_property_info;
-}
-EXPORT_SYMBOL_GPL(visor_easyproc_CreateDeviceProperty);
-
-
-
-void visor_easyproc_DeInitDevice(struct easyproc_driver_info *pdriver,
- struct easyproc_device_info *p, int devno)
-{
- size_t i;
-
- for (i = 0; i < ARRAY_SIZE(p->device_property_info); i++) {
- if (p->device_property_info[i].procEntry != NULL) {
- struct easyproc_device_property_info *px =
- &(p->device_property_info[i]);
- remove_proc_entry(px->property_name, p->procDevicexDir);
- px->procEntry = NULL;
- }
- }
- if (p->procDevicexDiagFile != NULL) {
- remove_proc_entry("diag", p->procDevicexDir);
- p->procDevicexDiagFile = NULL;
- }
- if (p->procDevicexDir != NULL) {
- char s[29];
-
- sprintf(s, "%d", devno);
- remove_proc_entry(s, pdriver->ProcDeviceDir);
- p->procDevicexDir = NULL;
- }
- p->devdata = NULL;
- p->pdriver = NULL;
-}
-EXPORT_SYMBOL_GPL(visor_easyproc_DeInitDevice);
-
-
-
-static int seq_show_driver(struct seq_file *seq, void *offset)
-{
- struct easyproc_driver_info *p =
- (struct easyproc_driver_info *)(seq->private);
- if (!p)
- return 0;
- (*(p->Show_driver_info))(seq);
- return 0;
-}
-
-
-
-static int seq_show_device(struct seq_file *seq, void *offset)
-{
- struct easyproc_device_info *p =
- (struct easyproc_device_info *)(seq->private);
- if ((!p) || (!(p->pdriver)))
- return 0;
- (*(p->pdriver->Show_device_info))(seq, p->devdata);
- return 0;
-}
-
-
-
-static int seq_show_device_property(struct seq_file *seq, void *offset)
-{
- struct easyproc_device_property_info *p =
- (struct easyproc_device_property_info *)(seq->private);
- if ((!p) || (!(p->show_device_property_info)))
- return 0;
- (*(p->show_device_property_info))(seq, p->devdata);
- return 0;
-}
-
-
-
-static ssize_t proc_write_driver(struct file *file, const char __user *buffer,
- size_t count, loff_t *ppos)
-{
- struct seq_file *seq = (struct seq_file *)file->private_data;
- struct easyproc_driver_info *p = NULL;
- char local_buf[256];
-
- if (seq == NULL)
- return 0;
- p = (struct easyproc_driver_info *)(seq->private);
- if ((!p) || (!(p->Write_driver_info)))
- return 0;
- if (count >= sizeof(local_buf))
- return -ENOMEM;
- if (copy_from_user(local_buf, buffer, count))
- return -EFAULT;
- local_buf[count] = '\0'; /* be friendly */
- (*(p->Write_driver_info))(local_buf, count, ppos);
- return count;
-}
-
-
-
-static ssize_t proc_write_device(struct file *file, const char __user *buffer,
- size_t count, loff_t *ppos)
-{
- struct seq_file *seq = (struct seq_file *)file->private_data;
- struct easyproc_device_info *p = NULL;
- char local_buf[256];
-
- if (seq == NULL)
- return 0;
- p = (struct easyproc_device_info *)(seq->private);
- if ((!p) || (!(p->pdriver)) || (!(p->pdriver->Write_device_info)))
- return 0;
- if (count >= sizeof(local_buf))
- return -ENOMEM;
- if (copy_from_user(local_buf, buffer, count))
- return -EFAULT;
- local_buf[count] = '\0'; /* be friendly */
- (*(p->pdriver->Write_device_info))(local_buf, count, ppos, p->devdata);
- return count;
-}
diff --git a/drivers/staging/unisys/visorutil/easyproc.h b/drivers/staging/unisys/visorutil/easyproc.h
deleted file mode 100644
index 6ce7d5e..0000000
--- a/drivers/staging/unisys/visorutil/easyproc.h
+++ /dev/null
@@ -1,92 +0,0 @@
-/* easyproc.h
- *
- * Copyright (C) 2010 - 2013 UNISYS CORPORATION
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at
- * your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for more
- * details.
- */
-
-/** @file *********************************************************************
- *
- * This describes the interfaces necessary for a simple /proc file
- * implementation for a driver.
- *
- ******************************************************************************
- */
-
-#ifndef __EASYPROC_H__
-#define __EASYPROC_H__
-
-#include "timskmod.h"
-
-
-struct easyproc_driver_info {
- struct proc_dir_entry *ProcDir;
- struct proc_dir_entry *ProcDriverDir;
- struct proc_dir_entry *ProcDriverDiagFile;
- struct proc_dir_entry *ProcDeviceDir;
- char *ProcId;
- void (*Show_device_info)(struct seq_file *seq, void *p);
- void (*Show_driver_info)(struct seq_file *seq);
- void (*Write_device_info)(char *buf, size_t count,
- loff_t *ppos, void *p);
- void (*Write_driver_info)(char *buf, size_t count, loff_t *ppos);
-};
-
-/* property is a file under /proc/<x>/device/<x>/<property_name> */
-struct easyproc_device_property_info {
- char property_name[25];
- struct proc_dir_entry *procEntry;
- struct easyproc_driver_info *pdriver;
- void *devdata;
- void (*show_device_property_info)(struct seq_file *seq, void *p);
-};
-
-struct easyproc_device_info {
- struct proc_dir_entry *procDevicexDir;
- struct proc_dir_entry *procDevicexDiagFile;
- struct easyproc_driver_info *pdriver;
- void *devdata;
- int devno;
- /* allow for a number of custom properties for each device: */
- struct easyproc_device_property_info device_property_info[10];
-};
-
-void visor_easyproc_InitDevice(struct easyproc_driver_info *pdriver,
- struct easyproc_device_info *p, int devno,
- void *devdata);
-void visor_easyproc_DeInitDevice(struct easyproc_driver_info *pdriver,
- struct easyproc_device_info *p, int devno);
-void visor_easyproc_InitDriver(struct easyproc_driver_info *pdriver,
- char *procId,
- void (*show_driver_info)(struct seq_file *),
- void (*show_device_info)(struct seq_file *,
- void *));
-void visor_easyproc_InitDriverEx(struct easyproc_driver_info *pdriver,
- char *procId,
- void (*show_driver_info)(struct seq_file *),
- void (*show_device_info)(struct seq_file *,
- void *),
- void (*Write_driver_info)(char *buf,
- size_t count,
- loff_t *ppos),
- void (*Write_device_info)(char *buf,
- size_t count,
- loff_t *ppos,
- void *p));
-void visor_easyproc_DeInitDriver(struct easyproc_driver_info *pdriver);
-void visor_easyproc_CreateDeviceProperty(struct easyproc_device_info *p,
- void (*show_property_info)
- (struct seq_file *, void *),
- char *property_name);
-
-#endif
diff --git a/drivers/staging/unisys/visorutil/procobjecttree.c b/drivers/staging/unisys/visorutil/procobjecttree.c
deleted file mode 100644
index e4e954e..0000000
--- a/drivers/staging/unisys/visorutil/procobjecttree.c
+++ /dev/null
@@ -1,335 +0,0 @@
-/* procobjecttree.c
- *
- * Copyright (C) 2010 - 2013 UNISYS CORPORATION
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at
- * your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for more
- * details.
- */
-
-#include "procobjecttree.h"
-
-#define MYDRVNAME "procobjecttree"
-
-
-
-/** This is context info that we stash in each /proc file entry, which we
- * need in order to call the callback function that supplies the /proc read
- * info for that file.
- */
-struct proc_dir_entry_context {
- void (*show_property)(struct seq_file *, void *, int);
- MYPROCOBJECT *procObject;
- int propertyIndex;
-
-};
-
-/** This describes the attributes of a tree rooted at
- * <procDirRoot>/<name[0]>/<name[1]>/...
- * Properties for each object of this type will be located under
- * <procDirRoot>/<name[0]>/<name[1]>/.../<objectName>/<propertyName>.
- */
-struct MYPROCTYPE_Tag {
- const char **name; /**< node names for this type, ending with NULL */
- int nNames; /**< num of node names in <name> */
-
- /** root dir for this type tree in /proc */
- struct proc_dir_entry *procDirRoot;
-
- struct proc_dir_entry **procDirs; /**< for each node in <name> */
-
- /** bottom dir where objects will be rooted; i.e., this is
- * <procDirRoot>/<name[0]>/<name[1]>/.../, which is the same as the
- * last entry in the <procDirs> array. */
- struct proc_dir_entry *procDir;
-
- /** name for each property that objects of this type can have */
- const char **propertyNames;
-
- int nProperties; /**< num of names in <propertyNames> */
-
- /** Call this, passing MYPROCOBJECT.context and the property index
- * whenever someone reads the proc entry */
- void (*show_property)(struct seq_file *, void *, int);
-};
-
-
-
-struct MYPROCOBJECT_Tag {
- MYPROCTYPE *type;
-
- /** This is the name of the dir node in /proc under which the
- * properties of this object will appear as files. */
- char *name;
-
- int namesize; /**< number of bytes allocated for name */
- void *context; /**< passed to MYPROCTYPE.show_property */
-
- /** <type.procDirRoot>/<type.name[0]>/<type.name[1]>/.../<name> */
- struct proc_dir_entry *procDir;
-
- /** a proc dir entry for each of the properties of the object;
- * properties are identified in MYPROCTYPE.propertyNames, so each of
- * the <procDirProperties> describes a single file like
- * <type.procDirRoot>/<type.name[0]>/<type.name[1]>/...
- * /<name>/<propertyName>
- */
- struct proc_dir_entry **procDirProperties;
-
- /** this is a holding area for the context information that is needed
- * to run the /proc callback function */
- struct proc_dir_entry_context *procDirPropertyContexts;
-};
-
-
-
-static struct proc_dir_entry *
-createProcDir(const char *name, struct proc_dir_entry *parent)
-{
- struct proc_dir_entry *p = proc_mkdir_mode(name, S_IFDIR, parent);
-
- return p;
-}
-
-static struct proc_dir_entry *
-createProcFile(const char *name, struct proc_dir_entry *parent,
- const struct file_operations *fops, void *data)
-{
- struct proc_dir_entry *p = proc_create_data(name, 0, parent,
- fops, data);
- return p;
-}
-
-static int seq_show(struct seq_file *seq, void *offset);
-static int proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, seq_show, PDE_DATA(inode));
-}
-
-static const struct file_operations proc_fops = {
- .open = proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-
-
-MYPROCTYPE *visor_proc_CreateType(struct proc_dir_entry *procDirRoot,
- const char **name,
- const char **propertyNames,
- void (*show_property)(struct seq_file *,
- void *, int))
-{
- int i = 0;
- MYPROCTYPE *rc = NULL, *type = NULL;
- struct proc_dir_entry *parent = NULL;
-
- if (procDirRoot == NULL)
- goto Away;
-
- if (name == NULL || name[0] == NULL)
- goto Away;
-
- type = kzalloc(sizeof(MYPROCTYPE), GFP_KERNEL | __GFP_NORETRY);
- if (type == NULL)
- goto Away;
-
- type->name = name;
- type->propertyNames = propertyNames;
- type->nProperties = 0;
- type->nNames = 0;
- type->show_property = show_property;
- type->procDirRoot = procDirRoot;
- if (type->propertyNames != NULL)
- while (type->propertyNames[type->nProperties] != NULL)
- type->nProperties++;
- while (type->name[type->nNames] != NULL)
- type->nNames++;
- type->procDirs = kcalloc((type->nNames + 1),
- sizeof(struct proc_dir_entry *),
- GFP_KERNEL | __GFP_NORETRY);
- if (type->procDirs == NULL)
- goto Away;
- parent = procDirRoot;
- for (i = 0; i < type->nNames; i++) {
- type->procDirs[i] = createProcDir(type->name[i], parent);
- if (type->procDirs[i] == NULL) {
- rc = NULL;
- goto Away;
- }
- parent = type->procDirs[i];
- }
- type->procDir = type->procDirs[type->nNames-1];
- rc = type;
-Away:
- if (rc == NULL) {
- if (type != NULL) {
- visor_proc_DestroyType(type);
- type = NULL;
- }
- }
- return rc;
-}
-EXPORT_SYMBOL_GPL(visor_proc_CreateType);
-
-
-
-void visor_proc_DestroyType(MYPROCTYPE *type)
-{
- if (type == NULL)
- return;
- if (type->procDirs != NULL) {
- int i = type->nNames-1;
-
- while (i >= 0) {
- if (type->procDirs[i] != NULL) {
- struct proc_dir_entry *parent = NULL;
-
- if (i == 0)
- parent = type->procDirRoot;
- else
- parent = type->procDirs[i-1];
- remove_proc_entry(type->name[i], parent);
- }
- i--;
- }
- kfree(type->procDirs);
- type->procDirs = NULL;
- }
- kfree(type);
-}
-EXPORT_SYMBOL_GPL(visor_proc_DestroyType);
-
-
-
-MYPROCOBJECT *visor_proc_CreateObject(MYPROCTYPE *type,
- const char *name, void *context)
-{
- MYPROCOBJECT *obj = NULL, *rc = NULL;
- int i = 0;
-
- if (type == NULL)
- goto Away;
-
- obj = kzalloc(sizeof(MYPROCOBJECT), GFP_KERNEL | __GFP_NORETRY);
- if (obj == NULL)
- goto Away;
-
- obj->type = type;
- obj->context = context;
- if (name == NULL) {
- obj->name = NULL;
- obj->procDir = type->procDir;
- } else {
- obj->namesize = strlen(name)+1;
- obj->name = kmalloc(obj->namesize, GFP_KERNEL | __GFP_NORETRY);
- if (obj->name == NULL) {
- obj->namesize = 0;
- goto Away;
- }
- strcpy(obj->name, name);
- obj->procDir = createProcDir(obj->name, type->procDir);
- if (obj->procDir == NULL)
- goto Away;
- }
- obj->procDirPropertyContexts =
- kcalloc((type->nProperties + 1),
- sizeof(struct proc_dir_entry_context),
- GFP_KERNEL | __GFP_NORETRY);
- if (obj->procDirPropertyContexts == NULL)
- goto Away;
- obj->procDirProperties = kcalloc((type->nProperties + 1),
- sizeof(struct proc_dir_entry *),
- GFP_KERNEL | __GFP_NORETRY);
- if (obj->procDirProperties == NULL)
- goto Away;
- for (i = 0; i < type->nProperties; i++) {
- obj->procDirPropertyContexts[i].procObject = obj;
- obj->procDirPropertyContexts[i].propertyIndex = i;
- obj->procDirPropertyContexts[i].show_property =
- type->show_property;
- if (type->propertyNames[i][0] != '\0') {
- /* only create properties that have names */
- obj->procDirProperties[i] =
- createProcFile(type->propertyNames[i],
- obj->procDir, &proc_fops,
- &obj->procDirPropertyContexts[i]);
- if (obj->procDirProperties[i] == NULL) {
- rc = NULL;
- goto Away;
- }
- }
- }
- rc = obj;
-Away:
- if (rc == NULL) {
- if (obj != NULL) {
- visor_proc_DestroyObject(obj);
- obj = NULL;
- }
- }
- return rc;
-}
-EXPORT_SYMBOL_GPL(visor_proc_CreateObject);
-
-
-
-void visor_proc_DestroyObject(MYPROCOBJECT *obj)
-{
- MYPROCTYPE *type = NULL;
-
- if (obj == NULL)
- return;
- type = obj->type;
- if (type == NULL)
- return;
- if (obj->procDirProperties != NULL) {
- int i = 0;
-
- for (i = 0; i < type->nProperties; i++) {
- if (obj->procDirProperties[i] != NULL) {
- remove_proc_entry(type->propertyNames[i],
- obj->procDir);
- obj->procDirProperties[i] = NULL;
- }
- }
- kfree(obj->procDirProperties);
- obj->procDirProperties = NULL;
- }
-
- kfree(obj->procDirPropertyContexts);
- obj->procDirPropertyContexts = NULL;
-
- if (obj->procDir != NULL) {
- if (obj->name != NULL)
- remove_proc_entry(obj->name, type->procDir);
- obj->procDir = NULL;
- }
-
- kfree(obj->name);
- obj->name = NULL;
- kfree(obj);
-}
-EXPORT_SYMBOL_GPL(visor_proc_DestroyObject);
-
-
-
-static int seq_show(struct seq_file *seq, void *offset)
-{
- struct proc_dir_entry_context *ctx = seq->private;
-
- if (ctx == NULL)
- return 0;
- (*ctx->show_property)(seq, ctx->procObject->context,
- ctx->propertyIndex);
- return 0;
-}
--
2.1.0
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