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rtl8187se: Don't use create_proc_read_entry() 

Don't use create_proc_read_entry() as that is deprecated, but rather use
proc_create_data() and seq_file instead.  Whilst we're at it, reduce the
number of show functions where we can share them.

Question: Do any of the registers read by proc_get_registers() have side
effects upon reading?  If so, locking will be required.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
cc: Maxim Mikityanskiy <maxtram95@gmail.com>
cc: YAMANE Toshiaki <yamanetoshi@gmail.com>
cc: Bill Pemberton <wfp5p@virginia.edu>
cc: Andrea Merello <andreamrl@tiscali.it>
cc: linux-wireless@vger.kernel.org
cc: devel@driverdev.osuosl.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
David Howells 2013-04-08 15:48:07 +01:00 committed by Al Viro
parent 0541f9d08a
commit 5ba02e355d
1 changed files with 63 additions and 71 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

134
drivers/staging/rtl8187se/r8180_core.c
View File

@ -36,6 +36,8 @@
#include <linux/syscalls.h>
#include <linux/eeprom_93cx6.h>
#include <linux/interrupt.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include "r8180_hw.h"
#include "r8180.h"
@ -204,51 +206,35 @@ void rtl8180_start_tx_beacon(struct net_device *dev);
static struct proc_dir_entry *rtl8180_proc;
static int proc_get_registers(char *page, char **start,
off_t offset, int count,
int *eof, void *data)
static int proc_get_registers(struct seq_file *m, void *v)
{
struct net_device *dev = data;
int len = 0;
int i, n;
int max = 0xff;
struct net_device *dev = m->private;
int i, n, max = 0xff;
/* This dump the current register page */
for (n = 0; n <= max;) {
len += snprintf(page + len, count - len, "\nD: %2x > ", n);
seq_printf(m, "\nD: %2x > ", n);
for (i = 0; i < 16 && n <= max; i++, n++)
len += snprintf(page + len, count - len, "%2x ",
read_nic_byte(dev, n));
seq_printf(m, "%2x ", read_nic_byte(dev, n));
}
len += snprintf(page + len, count - len, "\n");
*eof = 1;
return len;
seq_putc(m, '\n');
return 0;
}
int get_curr_tx_free_desc(struct net_device *dev, int priority);
static int proc_get_stats_hw(char *page, char **start,
off_t offset, int count,
int *eof, void *data)
static int proc_get_stats_hw(struct seq_file *m, void *v)
{
int len = 0;
*eof = 1;
return len;
return 0;
}
static int proc_get_stats_rx(char *page, char **start,
off_t offset, int count,
int *eof, void *data)
static int proc_get_stats_rx(struct seq_file *m, void *v)
{
struct net_device *dev = data;
struct net_device *dev = m->private;
struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
int len = 0;
len += snprintf(page + len, count - len,
seq_printf(m,
"RX OK: %lu\n"
"RX Retry: %lu\n"
"RX CRC Error(0-500): %lu\n"
@ -263,22 +249,17 @@ static int proc_get_stats_rx(char *page, char **start,
priv->stats.rxicverr
);
*eof = 1;
return len;
return 0;
}
static int proc_get_stats_tx(char *page, char **start,
off_t offset, int count,
int *eof, void *data)
static int proc_get_stats_tx(struct seq_file *m, void *v)
{
struct net_device *dev = data;
struct net_device *dev = m->private;
struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
int len = 0;
unsigned long totalOK;
totalOK = priv->stats.txnpokint+priv->stats.txhpokint+priv->stats.txlpokint;
len += snprintf(page + len, count - len,
seq_printf(m,
"TX OK: %lu\n"
"TX Error: %lu\n"
"TX Retry: %lu\n"
@ -291,8 +272,7 @@ static int proc_get_stats_tx(char *page, char **start,
priv->stats.txbeaconerr
);
*eof = 1;
return len;
return 0;
}
void rtl8180_proc_module_init(void)
@ -318,9 +298,43 @@ void rtl8180_proc_remove_one(struct net_device *dev)
}
}
/*
* seq_file wrappers for procfile show routines.
*/
static int rtl8180_proc_open(struct inode *inode, struct file *file)
{
struct net_device *dev = PDE(inode)->parent->data;
int (*show)(struct seq_file *, void *) = PDE_DATA(inode);
return single_open(file, show, dev);
}
static const struct file_operations rtl8180_proc_fops = {
.open = rtl8180_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release,
};
/*
* Table of proc files we need to create.
*/
struct rtl8180_proc_file {
char name[12];
int (*show)(struct seq_file *, void *);
};
static const struct rtl8180_proc_file rtl8180_proc_files[] = {
{ "stats-hw", &proc_get_stats_hw },
{ "stats-rx", &proc_get_stats_rx },
{ "stats-tx", &proc_get_stats_tx },
{ "registers", &proc_get_registers },
{ "" }
};
void rtl8180_proc_init_one(struct net_device *dev)
{
struct proc_dir_entry *e;
const struct rtl8180_proc_file *f;
struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
priv->dir_dev = rtl8180_proc;
@ -329,38 +343,16 @@ void rtl8180_proc_init_one(struct net_device *dev)
dev->name);
return;
}
priv->dir_dev->data = dev;
e = create_proc_read_entry("stats-hw", S_IFREG | S_IRUGO,
priv->dir_dev, proc_get_stats_hw, dev);
if (!e) {
DMESGE("Unable to initialize "
"/proc/net/r8180/%s/stats-hw\n",
dev->name);
}
e = create_proc_read_entry("stats-rx", S_IFREG | S_IRUGO,
priv->dir_dev, proc_get_stats_rx, dev);
if (!e) {
DMESGE("Unable to initialize "
"/proc/net/r8180/%s/stats-rx\n",
dev->name);
}
e = create_proc_read_entry("stats-tx", S_IFREG | S_IRUGO,
priv->dir_dev, proc_get_stats_tx, dev);
if (!e) {
DMESGE("Unable to initialize "
"/proc/net/r8180/%s/stats-tx\n",
dev->name);
}
e = create_proc_read_entry("registers", S_IFREG | S_IRUGO,
priv->dir_dev, proc_get_registers, dev);
if (!e) {
DMESGE("Unable to initialize "
"/proc/net/r8180/%s/registers\n",
dev->name);
for (f = rtl8180_proc_files; f->name[0]; f++) {
if (!proc_create_data(f->name, S_IFREG | S_IRUGO,
priv->dir_dev,
&rtl8180_proc_fops, f->show)) {
DMESGE("Unable to initialize /proc/net/r8180/%s\n",
f->name);
return;
}
}
}