[MAC80211]: Add debugfs attributes.
Export various mac80211 internal variables through debugfs. Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Benc
committed by
David S. Miller
David S. Miller
parent
f0706e828e
commit
e9f207f0ff
433
net/mac80211/debugfs.c
Normal file
433
net/mac80211/debugfs.c
Normal file
@@ -0,0 +1,433 @@
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/*
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* mac80211 debugfs for wireless PHYs
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*
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* Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
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*
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* GPLv2
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*
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*/
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#include <linux/debugfs.h>
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#include <linux/rtnetlink.h>
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#include "ieee80211_i.h"
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#include "ieee80211_rate.h"
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#include "debugfs.h"
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int mac80211_open_file_generic(struct inode *inode, struct file *file)
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{
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file->private_data = inode->i_private;
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return 0;
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}
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static const char *ieee80211_mode_str(int mode)
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{
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switch (mode) {
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case MODE_IEEE80211A:
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return "IEEE 802.11a";
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case MODE_IEEE80211B:
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return "IEEE 802.11b";
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case MODE_IEEE80211G:
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return "IEEE 802.11g";
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case MODE_ATHEROS_TURBO:
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return "Atheros Turbo (5 GHz)";
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default:
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return "UNKNOWN";
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}
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}
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static ssize_t modes_read(struct file *file, char __user *userbuf,
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size_t count, loff_t *ppos)
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{
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struct ieee80211_local *local = file->private_data;
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struct ieee80211_hw_mode *mode;
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char buf[150], *p = buf;
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/* FIXME: locking! */
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list_for_each_entry(mode, &local->modes_list, list) {
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p += scnprintf(p, sizeof(buf)+buf-p,
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"%s\n", ieee80211_mode_str(mode->mode));
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}
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return simple_read_from_buffer(userbuf, count, ppos, buf, p-buf);
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}
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static const struct file_operations modes_ops = {
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.read = modes_read,
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.open = mac80211_open_file_generic,
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};
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#define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...) \
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static ssize_t name## _read(struct file *file, char __user *userbuf, \
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size_t count, loff_t *ppos) \
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{ \
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struct ieee80211_local *local = file->private_data; \
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char buf[buflen]; \
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int res; \
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\
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res = scnprintf(buf, buflen, fmt "\n", ##value); \
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return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
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} \
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\
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static const struct file_operations name## _ops = { \
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.read = name## _read, \
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.open = mac80211_open_file_generic, \
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};
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#define DEBUGFS_ADD(name) \
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local->debugfs.name = debugfs_create_file(#name, 0444, phyd, \
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local, &name## _ops);
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#define DEBUGFS_DEL(name) \
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debugfs_remove(local->debugfs.name); \
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local->debugfs.name = NULL;
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DEBUGFS_READONLY_FILE(channel, 20, "%d",
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local->hw.conf.channel);
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DEBUGFS_READONLY_FILE(frequency, 20, "%d",
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local->hw.conf.freq);
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DEBUGFS_READONLY_FILE(radar_detect, 20, "%d",
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local->hw.conf.radar_detect);
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DEBUGFS_READONLY_FILE(antenna_sel_tx, 20, "%d",
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local->hw.conf.antenna_sel_tx);
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DEBUGFS_READONLY_FILE(antenna_sel_rx, 20, "%d",
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local->hw.conf.antenna_sel_rx);
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DEBUGFS_READONLY_FILE(bridge_packets, 20, "%d",
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local->bridge_packets);
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DEBUGFS_READONLY_FILE(key_tx_rx_threshold, 20, "%d",
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local->key_tx_rx_threshold);
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DEBUGFS_READONLY_FILE(rts_threshold, 20, "%d",
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local->rts_threshold);
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DEBUGFS_READONLY_FILE(fragmentation_threshold, 20, "%d",
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local->fragmentation_threshold);
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DEBUGFS_READONLY_FILE(short_retry_limit, 20, "%d",
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local->short_retry_limit);
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DEBUGFS_READONLY_FILE(long_retry_limit, 20, "%d",
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local->long_retry_limit);
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DEBUGFS_READONLY_FILE(total_ps_buffered, 20, "%d",
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local->total_ps_buffered);
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DEBUGFS_READONLY_FILE(mode, 20, "%s",
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ieee80211_mode_str(local->hw.conf.phymode));
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DEBUGFS_READONLY_FILE(wep_iv, 20, "%#06x",
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local->wep_iv & 0xffffff);
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DEBUGFS_READONLY_FILE(tx_power_reduction, 20, "%d.%d dBm",
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local->hw.conf.tx_power_reduction / 10,
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local->hw.conf.tx_power_reduction & 10);
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DEBUGFS_READONLY_FILE(rate_ctrl_alg, 100, "%s",
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local->rate_ctrl ? local->rate_ctrl->ops->name : "<unset>");
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/* statistics stuff */
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static inline int rtnl_lock_local(struct ieee80211_local *local)
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{
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rtnl_lock();
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if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED)) {
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rtnl_unlock();
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return -ENODEV;
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}
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return 0;
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}
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#define DEBUGFS_STATS_FILE(name, buflen, fmt, value...) \
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DEBUGFS_READONLY_FILE(stats_ ##name, buflen, fmt, ##value)
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static ssize_t format_devstat_counter(struct ieee80211_local *local,
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char __user *userbuf,
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size_t count, loff_t *ppos,
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int (*printvalue)(struct ieee80211_low_level_stats *stats, char *buf,
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int buflen))
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{
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struct ieee80211_low_level_stats stats;
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char buf[20];
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int res;
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if (!local->ops->get_stats)
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return -EOPNOTSUPP;
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res = rtnl_lock_local(local);
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if (res)
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return res;
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res = local->ops->get_stats(local_to_hw(local), &stats);
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rtnl_unlock();
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if (!res)
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res = printvalue(&stats, buf, sizeof(buf));
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return simple_read_from_buffer(userbuf, count, ppos, buf, res);
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}
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#define DEBUGFS_DEVSTATS_FILE(name) \
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static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\
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char *buf, int buflen) \
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{ \
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return scnprintf(buf, buflen, "%u\n", stats->name); \
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} \
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static ssize_t stats_ ##name## _read(struct file *file, \
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char __user *userbuf, \
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size_t count, loff_t *ppos) \
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{ \
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return format_devstat_counter(file->private_data, \
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userbuf, \
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count, \
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ppos, \
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print_devstats_##name); \
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} \
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\
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static const struct file_operations stats_ ##name## _ops = { \
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.read = stats_ ##name## _read, \
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.open = mac80211_open_file_generic, \
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};
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#define DEBUGFS_STATS_ADD(name) \
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local->debugfs.stats.name = debugfs_create_file(#name, 0444, statsd,\
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local, &stats_ ##name## _ops);
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#define DEBUGFS_STATS_DEL(name) \
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debugfs_remove(local->debugfs.stats.name); \
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local->debugfs.stats.name = NULL;
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DEBUGFS_STATS_FILE(transmitted_fragment_count, 20, "%u",
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local->dot11TransmittedFragmentCount);
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DEBUGFS_STATS_FILE(multicast_transmitted_frame_count, 20, "%u",
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local->dot11MulticastTransmittedFrameCount);
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DEBUGFS_STATS_FILE(failed_count, 20, "%u",
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local->dot11FailedCount);
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DEBUGFS_STATS_FILE(retry_count, 20, "%u",
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local->dot11RetryCount);
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DEBUGFS_STATS_FILE(multiple_retry_count, 20, "%u",
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local->dot11MultipleRetryCount);
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DEBUGFS_STATS_FILE(frame_duplicate_count, 20, "%u",
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local->dot11FrameDuplicateCount);
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DEBUGFS_STATS_FILE(received_fragment_count, 20, "%u",
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local->dot11ReceivedFragmentCount);
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DEBUGFS_STATS_FILE(multicast_received_frame_count, 20, "%u",
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local->dot11MulticastReceivedFrameCount);
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DEBUGFS_STATS_FILE(transmitted_frame_count, 20, "%u",
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local->dot11TransmittedFrameCount);
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DEBUGFS_STATS_FILE(wep_undecryptable_count, 20, "%u",
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local->dot11WEPUndecryptableCount);
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#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
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DEBUGFS_STATS_FILE(tx_handlers_drop, 20, "%u",
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local->tx_handlers_drop);
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DEBUGFS_STATS_FILE(tx_handlers_queued, 20, "%u",
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local->tx_handlers_queued);
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DEBUGFS_STATS_FILE(tx_handlers_drop_unencrypted, 20, "%u",
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local->tx_handlers_drop_unencrypted);
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DEBUGFS_STATS_FILE(tx_handlers_drop_fragment, 20, "%u",
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local->tx_handlers_drop_fragment);
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DEBUGFS_STATS_FILE(tx_handlers_drop_wep, 20, "%u",
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local->tx_handlers_drop_wep);
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DEBUGFS_STATS_FILE(tx_handlers_drop_not_assoc, 20, "%u",
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local->tx_handlers_drop_not_assoc);
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DEBUGFS_STATS_FILE(tx_handlers_drop_unauth_port, 20, "%u",
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local->tx_handlers_drop_unauth_port);
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DEBUGFS_STATS_FILE(rx_handlers_drop, 20, "%u",
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local->rx_handlers_drop);
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DEBUGFS_STATS_FILE(rx_handlers_queued, 20, "%u",
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local->rx_handlers_queued);
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DEBUGFS_STATS_FILE(rx_handlers_drop_nullfunc, 20, "%u",
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local->rx_handlers_drop_nullfunc);
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DEBUGFS_STATS_FILE(rx_handlers_drop_defrag, 20, "%u",
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local->rx_handlers_drop_defrag);
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DEBUGFS_STATS_FILE(rx_handlers_drop_short, 20, "%u",
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local->rx_handlers_drop_short);
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DEBUGFS_STATS_FILE(rx_handlers_drop_passive_scan, 20, "%u",
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local->rx_handlers_drop_passive_scan);
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DEBUGFS_STATS_FILE(tx_expand_skb_head, 20, "%u",
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local->tx_expand_skb_head);
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DEBUGFS_STATS_FILE(tx_expand_skb_head_cloned, 20, "%u",
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local->tx_expand_skb_head_cloned);
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DEBUGFS_STATS_FILE(rx_expand_skb_head, 20, "%u",
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local->rx_expand_skb_head);
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DEBUGFS_STATS_FILE(rx_expand_skb_head2, 20, "%u",
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local->rx_expand_skb_head2);
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DEBUGFS_STATS_FILE(rx_handlers_fragments, 20, "%u",
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local->rx_handlers_fragments);
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DEBUGFS_STATS_FILE(tx_status_drop, 20, "%u",
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local->tx_status_drop);
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static ssize_t stats_wme_rx_queue_read(struct file *file,
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char __user *userbuf,
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size_t count, loff_t *ppos)
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{
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struct ieee80211_local *local = file->private_data;
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char buf[NUM_RX_DATA_QUEUES*15], *p = buf;
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int i;
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for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
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p += scnprintf(p, sizeof(buf)+buf-p,
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"%u\n", local->wme_rx_queue[i]);
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return simple_read_from_buffer(userbuf, count, ppos, buf, p-buf);
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}
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static const struct file_operations stats_wme_rx_queue_ops = {
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.read = stats_wme_rx_queue_read,
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.open = mac80211_open_file_generic,
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};
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static ssize_t stats_wme_tx_queue_read(struct file *file,
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char __user *userbuf,
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size_t count, loff_t *ppos)
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{
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struct ieee80211_local *local = file->private_data;
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char buf[NUM_TX_DATA_QUEUES*15], *p = buf;
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int i;
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for (i = 0; i < NUM_TX_DATA_QUEUES; i++)
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p += scnprintf(p, sizeof(buf)+buf-p,
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"%u\n", local->wme_tx_queue[i]);
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return simple_read_from_buffer(userbuf, count, ppos, buf, p-buf);
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}
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static const struct file_operations stats_wme_tx_queue_ops = {
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.read = stats_wme_tx_queue_read,
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.open = mac80211_open_file_generic,
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};
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#endif
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DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount);
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DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount);
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DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount);
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DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount);
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void debugfs_hw_add(struct ieee80211_local *local)
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{
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struct dentry *phyd = local->hw.wiphy->debugfsdir;
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struct dentry *statsd;
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if (!phyd)
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return;
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local->debugfs.stations = debugfs_create_dir("stations", phyd);
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local->debugfs.keys = debugfs_create_dir("keys", phyd);
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DEBUGFS_ADD(channel);
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DEBUGFS_ADD(frequency);
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DEBUGFS_ADD(radar_detect);
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DEBUGFS_ADD(antenna_sel_tx);
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DEBUGFS_ADD(antenna_sel_rx);
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DEBUGFS_ADD(bridge_packets);
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DEBUGFS_ADD(key_tx_rx_threshold);
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DEBUGFS_ADD(rts_threshold);
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DEBUGFS_ADD(fragmentation_threshold);
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DEBUGFS_ADD(short_retry_limit);
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DEBUGFS_ADD(long_retry_limit);
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DEBUGFS_ADD(total_ps_buffered);
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DEBUGFS_ADD(mode);
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DEBUGFS_ADD(wep_iv);
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DEBUGFS_ADD(tx_power_reduction);
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DEBUGFS_ADD(modes);
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statsd = debugfs_create_dir("statistics", phyd);
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local->debugfs.statistics = statsd;
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/* if the dir failed, don't put all the other things into the root! */
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if (!statsd)
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return;
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DEBUGFS_STATS_ADD(transmitted_fragment_count);
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DEBUGFS_STATS_ADD(multicast_transmitted_frame_count);
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DEBUGFS_STATS_ADD(failed_count);
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DEBUGFS_STATS_ADD(retry_count);
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DEBUGFS_STATS_ADD(multiple_retry_count);
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DEBUGFS_STATS_ADD(frame_duplicate_count);
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DEBUGFS_STATS_ADD(received_fragment_count);
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DEBUGFS_STATS_ADD(multicast_received_frame_count);
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DEBUGFS_STATS_ADD(transmitted_frame_count);
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DEBUGFS_STATS_ADD(wep_undecryptable_count);
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#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
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DEBUGFS_STATS_ADD(tx_handlers_drop);
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DEBUGFS_STATS_ADD(tx_handlers_queued);
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DEBUGFS_STATS_ADD(tx_handlers_drop_unencrypted);
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DEBUGFS_STATS_ADD(tx_handlers_drop_fragment);
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DEBUGFS_STATS_ADD(tx_handlers_drop_wep);
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DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc);
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DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port);
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DEBUGFS_STATS_ADD(rx_handlers_drop);
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DEBUGFS_STATS_ADD(rx_handlers_queued);
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DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc);
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DEBUGFS_STATS_ADD(rx_handlers_drop_defrag);
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DEBUGFS_STATS_ADD(rx_handlers_drop_short);
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DEBUGFS_STATS_ADD(rx_handlers_drop_passive_scan);
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DEBUGFS_STATS_ADD(tx_expand_skb_head);
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DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned);
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DEBUGFS_STATS_ADD(rx_expand_skb_head);
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DEBUGFS_STATS_ADD(rx_expand_skb_head2);
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DEBUGFS_STATS_ADD(rx_handlers_fragments);
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DEBUGFS_STATS_ADD(tx_status_drop);
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DEBUGFS_STATS_ADD(wme_tx_queue);
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DEBUGFS_STATS_ADD(wme_rx_queue);
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#endif
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DEBUGFS_STATS_ADD(dot11ACKFailureCount);
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DEBUGFS_STATS_ADD(dot11RTSFailureCount);
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DEBUGFS_STATS_ADD(dot11FCSErrorCount);
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DEBUGFS_STATS_ADD(dot11RTSSuccessCount);
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}
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void debugfs_hw_del(struct ieee80211_local *local)
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{
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DEBUGFS_DEL(channel);
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DEBUGFS_DEL(frequency);
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DEBUGFS_DEL(radar_detect);
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DEBUGFS_DEL(antenna_sel_tx);
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DEBUGFS_DEL(antenna_sel_rx);
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DEBUGFS_DEL(bridge_packets);
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DEBUGFS_DEL(key_tx_rx_threshold);
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DEBUGFS_DEL(rts_threshold);
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DEBUGFS_DEL(fragmentation_threshold);
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DEBUGFS_DEL(short_retry_limit);
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DEBUGFS_DEL(long_retry_limit);
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DEBUGFS_DEL(total_ps_buffered);
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DEBUGFS_DEL(mode);
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DEBUGFS_DEL(wep_iv);
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DEBUGFS_DEL(tx_power_reduction);
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DEBUGFS_DEL(modes);
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DEBUGFS_STATS_DEL(transmitted_fragment_count);
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DEBUGFS_STATS_DEL(multicast_transmitted_frame_count);
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DEBUGFS_STATS_DEL(failed_count);
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DEBUGFS_STATS_DEL(retry_count);
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DEBUGFS_STATS_DEL(multiple_retry_count);
|
||||
DEBUGFS_STATS_DEL(frame_duplicate_count);
|
||||
DEBUGFS_STATS_DEL(received_fragment_count);
|
||||
DEBUGFS_STATS_DEL(multicast_received_frame_count);
|
||||
DEBUGFS_STATS_DEL(transmitted_frame_count);
|
||||
DEBUGFS_STATS_DEL(wep_undecryptable_count);
|
||||
DEBUGFS_STATS_DEL(num_scans);
|
||||
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
|
||||
DEBUGFS_STATS_DEL(tx_handlers_drop);
|
||||
DEBUGFS_STATS_DEL(tx_handlers_queued);
|
||||
DEBUGFS_STATS_DEL(tx_handlers_drop_unencrypted);
|
||||
DEBUGFS_STATS_DEL(tx_handlers_drop_fragment);
|
||||
DEBUGFS_STATS_DEL(tx_handlers_drop_wep);
|
||||
DEBUGFS_STATS_DEL(tx_handlers_drop_not_assoc);
|
||||
DEBUGFS_STATS_DEL(tx_handlers_drop_unauth_port);
|
||||
DEBUGFS_STATS_DEL(rx_handlers_drop);
|
||||
DEBUGFS_STATS_DEL(rx_handlers_queued);
|
||||
DEBUGFS_STATS_DEL(rx_handlers_drop_nullfunc);
|
||||
DEBUGFS_STATS_DEL(rx_handlers_drop_defrag);
|
||||
DEBUGFS_STATS_DEL(rx_handlers_drop_short);
|
||||
DEBUGFS_STATS_DEL(rx_handlers_drop_passive_scan);
|
||||
DEBUGFS_STATS_DEL(tx_expand_skb_head);
|
||||
DEBUGFS_STATS_DEL(tx_expand_skb_head_cloned);
|
||||
DEBUGFS_STATS_DEL(rx_expand_skb_head);
|
||||
DEBUGFS_STATS_DEL(rx_expand_skb_head2);
|
||||
DEBUGFS_STATS_DEL(rx_handlers_fragments);
|
||||
DEBUGFS_STATS_DEL(tx_status_drop);
|
||||
DEBUGFS_STATS_DEL(wme_tx_queue);
|
||||
DEBUGFS_STATS_DEL(wme_rx_queue);
|
||||
#endif
|
||||
DEBUGFS_STATS_DEL(dot11ACKFailureCount);
|
||||
DEBUGFS_STATS_DEL(dot11RTSFailureCount);
|
||||
DEBUGFS_STATS_DEL(dot11FCSErrorCount);
|
||||
DEBUGFS_STATS_DEL(dot11RTSSuccessCount);
|
||||
|
||||
debugfs_remove(local->debugfs.statistics);
|
||||
local->debugfs.statistics = NULL;
|
||||
debugfs_remove(local->debugfs.stations);
|
||||
local->debugfs.stations = NULL;
|
||||
debugfs_remove(local->debugfs.keys);
|
||||
local->debugfs.keys = NULL;
|
||||
}
|
||||
Reference in New Issue
Block a user