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Diffstat (limited to 'drivers/net/wireless/broadcom/b43/debugfs.c')
-rw-r--r--drivers/net/wireless/broadcom/b43/debugfs.c102
1 files changed, 21 insertions, 81 deletions
diff --git a/drivers/net/wireless/broadcom/b43/debugfs.c b/drivers/net/wireless/broadcom/b43/debugfs.c
index 77046384dd80..5a49970afc8c 100644
--- a/drivers/net/wireless/broadcom/b43/debugfs.c
+++ b/drivers/net/wireless/broadcom/b43/debugfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
Broadcom B43 wireless driver
@@ -6,20 +7,6 @@
Copyright (c) 2005-2007 Michael Buesch <m@bues.ch>
- 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. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
- Boston, MA 02110-1301, USA.
*/
@@ -43,7 +30,6 @@ static struct dentry *rootdir;
struct b43_debugfs_fops {
ssize_t (*read)(struct b43_wldev *dev, char *buf, size_t bufsize);
int (*write)(struct b43_wldev *dev, const char *buf, size_t count);
- struct file_operations fops;
/* Offset of struct b43_dfs_file in struct b43_dfsentry */
size_t file_struct_offset;
};
@@ -64,7 +50,7 @@ struct b43_dfs_file *fops_to_dfs_file(struct b43_wldev *dev,
#define fappend(fmt, x...) \
do { \
if (bufsize - count) \
- count += snprintf(buf + count, \
+ count += scnprintf(buf + count, \
bufsize - count, \
fmt , ##x); \
else \
@@ -504,9 +490,9 @@ static ssize_t b43_debugfs_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
struct b43_wldev *dev;
- struct b43_debugfs_fops *dfops;
+ const struct b43_debugfs_fops *dfops;
struct b43_dfs_file *dfile;
- ssize_t uninitialized_var(ret);
+ ssize_t ret;
char *buf;
const size_t bufsize = 1024 * 16; /* 16 kiB buffer */
const size_t buforder = get_order(bufsize);
@@ -524,8 +510,7 @@ static ssize_t b43_debugfs_read(struct file *file, char __user *userbuf,
goto out_unlock;
}
- dfops = container_of(debugfs_real_fops(file),
- struct b43_debugfs_fops, fops);
+ dfops = debugfs_get_aux(file);
if (!dfops->read) {
err = -ENOSYS;
goto out_unlock;
@@ -568,7 +553,7 @@ static ssize_t b43_debugfs_write(struct file *file,
size_t count, loff_t *ppos)
{
struct b43_wldev *dev;
- struct b43_debugfs_fops *dfops;
+ const struct b43_debugfs_fops *dfops;
char *buf;
int err = 0;
@@ -586,8 +571,7 @@ static ssize_t b43_debugfs_write(struct file *file,
goto out_unlock;
}
- dfops = container_of(debugfs_real_fops(file),
- struct b43_debugfs_fops, fops);
+ dfops = debugfs_get_aux(file);
if (!dfops->write) {
err = -ENOSYS;
goto out_unlock;
@@ -615,16 +599,16 @@ out_unlock:
}
+static struct debugfs_short_fops debugfs_ops = {
+ .read = b43_debugfs_read,
+ .write = b43_debugfs_write,
+ .llseek = generic_file_llseek,
+};
+
#define B43_DEBUGFS_FOPS(name, _read, _write) \
static struct b43_debugfs_fops fops_##name = { \
.read = _read, \
.write = _write, \
- .fops = { \
- .open = simple_open, \
- .read = b43_debugfs_read, \
- .write = b43_debugfs_write, \
- .llseek = generic_file_llseek, \
- }, \
.file_struct_offset = offsetof(struct b43_dfsentry, \
file_##name), \
}
@@ -656,27 +640,15 @@ bool b43_debug(struct b43_wldev *dev, enum b43_dyndbg feature)
return enabled;
}
-static void b43_remove_dynamic_debug(struct b43_wldev *dev)
-{
- struct b43_dfsentry *e = dev->dfsentry;
- int i;
-
- for (i = 0; i < __B43_NR_DYNDBG; i++)
- debugfs_remove(e->dyn_debug_dentries[i]);
-}
-
static void b43_add_dynamic_debug(struct b43_wldev *dev)
{
struct b43_dfsentry *e = dev->dfsentry;
- struct dentry *d;
-#define add_dyn_dbg(name, id, initstate) do { \
- e->dyn_debug[id] = (initstate); \
- d = debugfs_create_bool(name, 0600, e->subdir, \
- &(e->dyn_debug[id])); \
- if (!IS_ERR(d)) \
- e->dyn_debug_dentries[id] = d; \
- } while (0)
+#define add_dyn_dbg(name, id, initstate) do { \
+ e->dyn_debug[id] = (initstate); \
+ debugfs_create_bool(name, 0600, e->subdir, \
+ &(e->dyn_debug[id])); \
+ } while (0)
add_dyn_dbg("debug_xmitpower", B43_DBG_XMITPOWER, false);
add_dyn_dbg("debug_dmaoverflow", B43_DBG_DMAOVERFLOW, false);
@@ -718,19 +690,6 @@ void b43_debugfs_add_device(struct b43_wldev *dev)
snprintf(devdir, sizeof(devdir), "%s", wiphy_name(dev->wl->hw->wiphy));
e->subdir = debugfs_create_dir(devdir, rootdir);
- if (!e->subdir || IS_ERR(e->subdir)) {
- if (e->subdir == ERR_PTR(-ENODEV)) {
- b43dbg(dev->wl, "DebugFS (CONFIG_DEBUG_FS) not "
- "enabled in kernel config\n");
- } else {
- b43err(dev->wl, "debugfs: cannot create %s directory\n",
- devdir);
- }
- dev->dfsentry = NULL;
- kfree(log->log);
- kfree(e);
- return;
- }
e->mmio16read_next = 0xFFFF; /* invalid address */
e->mmio32read_next = 0xFFFF; /* invalid address */
@@ -741,13 +700,9 @@ void b43_debugfs_add_device(struct b43_wldev *dev)
#define ADD_FILE(name, mode) \
do { \
- struct dentry *d; \
- d = debugfs_create_file(__stringify(name), \
- mode, e->subdir, dev, \
- &fops_##name.fops); \
- e->file_##name.dentry = NULL; \
- if (!IS_ERR(d)) \
- e->file_##name.dentry = d; \
+ debugfs_create_file_aux(__stringify(name), \
+ mode, e->subdir, dev, \
+ &fops_##name, &debugfs_ops); \
} while (0)
@@ -777,19 +732,6 @@ void b43_debugfs_remove_device(struct b43_wldev *dev)
e = dev->dfsentry;
if (!e)
return;
- b43_remove_dynamic_debug(dev);
-
- debugfs_remove(e->file_shm16read.dentry);
- debugfs_remove(e->file_shm16write.dentry);
- debugfs_remove(e->file_shm32read.dentry);
- debugfs_remove(e->file_shm32write.dentry);
- debugfs_remove(e->file_mmio16read.dentry);
- debugfs_remove(e->file_mmio16write.dentry);
- debugfs_remove(e->file_mmio32read.dentry);
- debugfs_remove(e->file_mmio32write.dentry);
- debugfs_remove(e->file_txstat.dentry);
- debugfs_remove(e->file_restart.dentry);
- debugfs_remove(e->file_loctls.dentry);
debugfs_remove(e->subdir);
kfree(e->txstatlog.log);
@@ -818,8 +760,6 @@ void b43_debugfs_log_txstat(struct b43_wldev *dev,
void b43_debugfs_init(void)
{
rootdir = debugfs_create_dir(KBUILD_MODNAME, NULL);
- if (IS_ERR(rootdir))
- rootdir = NULL;
}
void b43_debugfs_exit(void)
generated by cgit (git 2.34.1) at 2025-12-25 01:15:40 +0000