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path: root/drivers/isdn/capi/kcapi_proc.c
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Diffstat (limited to 'drivers/isdn/capi/kcapi_proc.c')
-rw-r--r--drivers/isdn/capi/kcapi_proc.c126
1 files changed, 56 insertions, 70 deletions
diff --git a/drivers/isdn/capi/kcapi_proc.c b/drivers/isdn/capi/kcapi_proc.c
index 2cc8b27e4c3..68db3c5a106 100644
--- a/drivers/isdn/capi/kcapi_proc.c
+++ b/drivers/isdn/capi/kcapi_proc.c
@@ -1,9 +1,9 @@
/*
* Kernel CAPI 2.0 Module - /proc/capi handling
- *
+ *
* Copyright 1999 by Carsten Paeth <calle@calle.de>
* Copyright 2002 by Kai Germaschewski <kai@germaschewski.name>
- *
+ *
* This software may be used and distributed according to the terms
* of the GNU General Public License, incorporated herein by reference.
*
@@ -14,14 +14,14 @@
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/init.h>
+#include <linux/export.h>
-static char *
-cardstate2str(unsigned short cardstate)
+static char *state2str(unsigned short state)
{
- switch (cardstate) {
- case CARD_DETECTED: return "detected";
- case CARD_LOADING: return "loading";
- case CARD_RUNNING: return "running";
+ switch (state) {
+ case CAPI_CTR_DETECTED: return "detected";
+ case CAPI_CTR_LOADING: return "loading";
+ case CAPI_CTR_RUNNING: return "running";
default: return "???";
}
}
@@ -29,16 +29,19 @@ cardstate2str(unsigned short cardstate)
// /proc/capi
// ===========================================================================
-// /proc/capi/controller:
+// /proc/capi/controller:
// cnr driver cardstate name driverinfo
// /proc/capi/contrstats:
// cnr nrecvctlpkt nrecvdatapkt nsentctlpkt nsentdatapkt
// ---------------------------------------------------------------------------
static void *controller_start(struct seq_file *seq, loff_t *pos)
+ __acquires(capi_controller_lock)
{
+ mutex_lock(&capi_controller_lock);
+
if (*pos < CAPI_MAXCONTR)
- return &capi_cards[*pos];
+ return &capi_controller[*pos];
return NULL;
}
@@ -47,13 +50,15 @@ static void *controller_next(struct seq_file *seq, void *v, loff_t *pos)
{
++*pos;
if (*pos < CAPI_MAXCONTR)
- return &capi_cards[*pos];
+ return &capi_controller[*pos];
return NULL;
}
static void controller_stop(struct seq_file *seq, void *v)
+ __releases(capi_controller_lock)
{
+ mutex_unlock(&capi_controller_lock);
}
static int controller_show(struct seq_file *seq, void *v)
@@ -65,7 +70,7 @@ static int controller_show(struct seq_file *seq, void *v)
seq_printf(seq, "%d %-10s %-8s %-16s %s\n",
ctr->cnr, ctr->driver_name,
- cardstate2str(ctr->cardstate),
+ state2str(ctr->state),
ctr->name,
ctr->procinfo ? ctr->procinfo(ctr) : "");
@@ -80,7 +85,7 @@ static int contrstats_show(struct seq_file *seq, void *v)
return 0;
seq_printf(seq, "%d %lu %lu %lu %lu\n",
- ctr->cnr,
+ ctr->cnr,
ctr->nrecvctlpkt,
ctr->nrecvdatapkt,
ctr->nsentctlpkt,
@@ -89,14 +94,14 @@ static int contrstats_show(struct seq_file *seq, void *v)
return 0;
}
-static struct seq_operations seq_controller_ops = {
+static const struct seq_operations seq_controller_ops = {
.start = controller_start,
.next = controller_next,
.stop = controller_stop,
.show = controller_show,
};
-static struct seq_operations seq_contrstats_ops = {
+static const struct seq_operations seq_contrstats_ops = {
.start = controller_start,
.next = controller_next,
.stop = controller_stop,
@@ -113,29 +118,33 @@ static int seq_contrstats_open(struct inode *inode, struct file *file)
return seq_open(file, &seq_contrstats_ops);
}
-static struct file_operations proc_controller_ops = {
+static const struct file_operations proc_controller_ops = {
+ .owner = THIS_MODULE,
.open = seq_controller_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release,
};
-static struct file_operations proc_contrstats_ops = {
+static const struct file_operations proc_contrstats_ops = {
+ .owner = THIS_MODULE,
.open = seq_contrstats_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release,
};
-// /proc/capi/applications:
+// /proc/capi/applications:
// applid l3cnt dblkcnt dblklen #ncci recvqueuelen
-// /proc/capi/applstats:
+// /proc/capi/applstats:
// applid nrecvctlpkt nrecvdatapkt nsentctlpkt nsentdatapkt
// ---------------------------------------------------------------------------
-static void *
-applications_start(struct seq_file *seq, loff_t *pos)
+static void *applications_start(struct seq_file *seq, loff_t *pos)
+ __acquires(capi_controller_lock)
{
+ mutex_lock(&capi_controller_lock);
+
if (*pos < CAPI_MAXAPPL)
return &capi_applications[*pos];
@@ -152,9 +161,10 @@ applications_next(struct seq_file *seq, void *v, loff_t *pos)
return NULL;
}
-static void
-applications_stop(struct seq_file *seq, void *v)
+static void applications_stop(struct seq_file *seq, void *v)
+ __releases(capi_controller_lock)
{
+ mutex_unlock(&capi_controller_lock);
}
static int
@@ -192,14 +202,14 @@ applstats_show(struct seq_file *seq, void *v)
return 0;
}
-static struct seq_operations seq_applications_ops = {
+static const struct seq_operations seq_applications_ops = {
.start = applications_start,
.next = applications_next,
.stop = applications_stop,
.show = applications_show,
};
-static struct seq_operations seq_applstats_ops = {
+static const struct seq_operations seq_applstats_ops = {
.start = applications_start,
.next = applications_next,
.stop = applications_stop,
@@ -218,76 +228,51 @@ seq_applstats_open(struct inode *inode, struct file *file)
return seq_open(file, &seq_applstats_ops);
}
-static struct file_operations proc_applications_ops = {
+static const struct file_operations proc_applications_ops = {
+ .owner = THIS_MODULE,
.open = seq_applications_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release,
};
-static struct file_operations proc_applstats_ops = {
+static const struct file_operations proc_applstats_ops = {
+ .owner = THIS_MODULE,
.open = seq_applstats_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release,
};
-static void
-create_seq_entry(char *name, mode_t mode, struct file_operations *f)
-{
- struct proc_dir_entry *entry;
- entry = create_proc_entry(name, mode, NULL);
- if (entry)
- entry->proc_fops = f;
-}
-
// ---------------------------------------------------------------------------
-
-static __inline__ struct capi_driver *capi_driver_get_idx(loff_t pos)
-{
- struct capi_driver *drv = NULL;
- struct list_head *l;
- loff_t i;
-
- i = 0;
- list_for_each(l, &capi_drivers) {
- drv = list_entry(l, struct capi_driver, list);
- if (i++ == pos)
- return drv;
- }
- return NULL;
-}
-
static void *capi_driver_start(struct seq_file *seq, loff_t *pos)
+ __acquires(&capi_drivers_lock)
{
- struct capi_driver *drv;
- read_lock(&capi_drivers_list_lock);
- drv = capi_driver_get_idx(*pos);
- return drv;
+ mutex_lock(&capi_drivers_lock);
+ return seq_list_start(&capi_drivers, *pos);
}
static void *capi_driver_next(struct seq_file *seq, void *v, loff_t *pos)
{
- struct capi_driver *drv = (struct capi_driver *)v;
- ++*pos;
- if (drv->list.next == &capi_drivers) return NULL;
- return list_entry(drv->list.next, struct capi_driver, list);
+ return seq_list_next(v, &capi_drivers, pos);
}
static void capi_driver_stop(struct seq_file *seq, void *v)
+ __releases(&capi_drivers_lock)
{
- read_unlock(&capi_drivers_list_lock);
+ mutex_unlock(&capi_drivers_lock);
}
static int capi_driver_show(struct seq_file *seq, void *v)
{
- struct capi_driver *drv = (struct capi_driver *)v;
+ struct capi_driver *drv = list_entry(v, struct capi_driver, list);
+
seq_printf(seq, "%-32s %s\n", drv->name, drv->revision);
return 0;
}
-static struct seq_operations seq_capi_driver_ops = {
+static const struct seq_operations seq_capi_driver_ops = {
.start = capi_driver_start,
.next = capi_driver_next,
.stop = capi_driver_stop,
@@ -302,7 +287,8 @@ seq_capi_driver_open(struct inode *inode, struct file *file)
return err;
}
-static struct file_operations proc_driver_ops = {
+static const struct file_operations proc_driver_ops = {
+ .owner = THIS_MODULE,
.open = seq_capi_driver_open,
.read = seq_read,
.llseek = seq_lseek,
@@ -311,16 +297,16 @@ static struct file_operations proc_driver_ops = {
// ---------------------------------------------------------------------------
-void __init
+void __init
kcapi_proc_init(void)
{
proc_mkdir("capi", NULL);
proc_mkdir("capi/controllers", NULL);
- create_seq_entry("capi/controller", 0, &proc_controller_ops);
- create_seq_entry("capi/contrstats", 0, &proc_contrstats_ops);
- create_seq_entry("capi/applications", 0, &proc_applications_ops);
- create_seq_entry("capi/applstats", 0, &proc_applstats_ops);
- create_seq_entry("capi/driver", 0, &proc_driver_ops);
+ proc_create("capi/controller", 0, NULL, &proc_controller_ops);
+ proc_create("capi/contrstats", 0, NULL, &proc_contrstats_ops);
+ proc_create("capi/applications", 0, NULL, &proc_applications_ops);
+ proc_create("capi/applstats", 0, NULL, &proc_applstats_ops);
+ proc_create("capi/driver", 0, NULL, &proc_driver_ops);
}
void __exit
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-14 21:30:46 +0000