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iwlwifi: mvm: remove netdetect debugfs entry

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This debugfs entry was implemented just as a proof-of-concept before
the full support for netdetect via cfg80211/mac80211 was implemented.
Now that we have a proper way to enable netdetect from userspace, this
entry is redundant and should be removed to avoid unnecessary
maintenance work.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
This commit is contained in:
Luciano Coelho 2015-08-18 12:07:48 +03:00
parent 5865f3658b
commit dbb04b0d29
1 changed files with 0 additions and 114 deletions
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114
drivers/net/wireless/iwlwifi/mvm/debugfs.c
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@ -1214,118 +1214,6 @@ static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf,
return ret;
}
#define MAX_NUM_ND_MATCHSETS 10
static ssize_t iwl_dbgfs_netdetect_write(struct iwl_mvm *mvm, char *buf,
size_t count, loff_t *ppos)
{
const char *seps = ",\n";
char *buf_ptr = buf;
char *value_str = NULL;
int ret, i;
/* TODO: don't free if write is being called several times in one go */
if (mvm->nd_config) {
kfree(mvm->nd_config->match_sets);
kfree(mvm->nd_config);
mvm->nd_config = NULL;
}
mvm->nd_config = kzalloc(sizeof(*mvm->nd_config) +
(11 * sizeof(struct ieee80211_channel *)),
GFP_KERNEL);
if (!mvm->nd_config) {
ret = -ENOMEM;
goto out_free;
}
mvm->nd_config->n_channels = 11;
mvm->nd_config->scan_width = NL80211_BSS_CHAN_WIDTH_20;
mvm->nd_config->interval = 5;
mvm->nd_config->min_rssi_thold = -80;
for (i = 0; i < mvm->nd_config->n_channels; i++)
mvm->nd_config->channels[i] = &mvm->nvm_data->channels[i];
mvm->nd_config->match_sets =
kcalloc(MAX_NUM_ND_MATCHSETS,
sizeof(*mvm->nd_config->match_sets),
GFP_KERNEL);
if (!mvm->nd_config->match_sets) {
ret = -ENOMEM;
goto out_free;
}
while ((value_str = strsep(&buf_ptr, seps)) &&
strlen(value_str)) {
struct cfg80211_match_set *set;
if (mvm->nd_config->n_match_sets >= MAX_NUM_ND_MATCHSETS) {
ret = -EINVAL;
goto out_free;
}
set = &mvm->nd_config->match_sets[mvm->nd_config->n_match_sets];
set->ssid.ssid_len = strlen(value_str);
if (set->ssid.ssid_len > IEEE80211_MAX_SSID_LEN) {
ret = -EINVAL;
goto out_free;
}
memcpy(set->ssid.ssid, value_str, set->ssid.ssid_len);
mvm->nd_config->n_match_sets++;
}
ret = count;
if (mvm->nd_config->n_match_sets)
goto out;
out_free:
if (mvm->nd_config)
kfree(mvm->nd_config->match_sets);
kfree(mvm->nd_config);
mvm->nd_config = NULL;
out:
return ret;
}
static ssize_t
iwl_dbgfs_netdetect_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_mvm *mvm = file->private_data;
size_t bufsz, ret;
char *buf;
int i, n_match_sets, pos = 0;
n_match_sets = mvm->nd_config ? mvm->nd_config->n_match_sets : 0;
bufsz = n_match_sets * (IEEE80211_MAX_SSID_LEN + 1) + 1;
buf = kzalloc(bufsz, GFP_KERNEL);
if (!buf)
return -ENOMEM;
for (i = 0; i < n_match_sets; i++) {
if (pos +
mvm->nd_config->match_sets[i].ssid.ssid_len + 2 > bufsz) {
ret = -EIO;
goto out;
}
memcpy(buf + pos, mvm->nd_config->match_sets[i].ssid.ssid,
mvm->nd_config->match_sets[i].ssid.ssid_len);
pos += mvm->nd_config->match_sets[i].ssid.ssid_len;
buf[pos++] = '\n';
}
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
out:
kfree(buf);
return ret;
}
#endif
#define PRINT_MVM_REF(ref) do { \
@ -1503,7 +1391,6 @@ MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256);
#ifdef CONFIG_PM_SLEEP
MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(netdetect, 384);
#endif
int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
@ -1572,7 +1459,6 @@ int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
if (!debugfs_create_u32("last_netdetect_scans", S_IRUSR,
mvm->debugfs_dir, &mvm->last_netdetect_scans))
goto err;
MVM_DEBUGFS_ADD_FILE(netdetect, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
#endif
if (!debugfs_create_u8("low_latency_agg_frame_limit", S_IRUSR | S_IWUSR,