qcacld-3.0: Fix STA+SAP SCC on DFS when sta_sap_scc_on_dfs_chan = 0

When sta_sap_scc_on_dfs_chan = 0, SAP is not allowed to SCC
with STA on DFS channel. Check the SAP target channel DFS flag
considering the target channel bandwidth.

Change-Id: I321c1055574477fe39ca8569f24a4040c8dc1904
CRs-Fixed: 2756518
This commit is contained in:
Liangwei Dong
2020-08-10 16:35:58 +08:00
committed by snandini
parent 5a9a178921
commit cc9cbfc8de
8 changed files with 194 additions and 83 deletions

View File

@@ -2928,6 +2928,7 @@ bool policy_mgr_go_scc_enforced(struct wlan_objmgr_psoc *psoc);
* @con_ch_freq: pointer to the chan freq on which sap will come up
* @sap_ch_freq: initial channel frequency for SAP
* @sap_vdev_id: sap vdev id.
* @ch_params: sap channel parameters
*
* This function checks & updates the channel SAP to come up on in
* case of STA+SAP concurrency
@@ -2935,7 +2936,8 @@ bool policy_mgr_go_scc_enforced(struct wlan_objmgr_psoc *psoc);
*/
QDF_STATUS policy_mgr_valid_sap_conc_channel_check(
struct wlan_objmgr_psoc *psoc, uint32_t *con_ch_freq,
uint32_t sap_ch_freq, uint8_t sap_vdev_id);
uint32_t sap_ch_freq, uint8_t sap_vdev_id,
struct ch_params *ch_params);
/**
* policy_mgr_get_alternate_channel_for_sap() - Get an alternate

View File

@@ -33,6 +33,7 @@
#include "qdf_platform.h"
#include "wlan_nan_api.h"
#include "nan_ucfg_api.h"
#include "wlan_mlme_api.h"
#include "sap_api.h"
enum policy_mgr_conc_next_action (*policy_mgr_get_current_pref_hw_mode_ptr)
@@ -2049,12 +2050,14 @@ static QDF_STATUS policy_mgr_check_6ghz_sap_conc(
QDF_STATUS policy_mgr_valid_sap_conc_channel_check(
struct wlan_objmgr_psoc *psoc, uint32_t *con_ch_freq,
uint32_t sap_ch_freq, uint8_t sap_vdev_id)
uint32_t sap_ch_freq, uint8_t sap_vdev_id,
struct ch_params *ch_params)
{
uint32_t ch_freq = *con_ch_freq;
uint32_t temp_ch_freq = 0;
struct policy_mgr_psoc_priv_obj *pm_ctx;
bool sta_sap_scc_on_dfs_chan;
bool is_dfs;
pm_ctx = policy_mgr_get_context(psoc);
if (!pm_ctx) {
@@ -2089,9 +2092,10 @@ QDF_STATUS policy_mgr_valid_sap_conc_channel_check(
sta_sap_scc_on_dfs_chan =
policy_mgr_is_sta_sap_scc_allowed_on_dfs_chan(psoc);
is_dfs = wlan_mlme_check_chan_param_has_dfs(
pm_ctx->pdev, ch_params, ch_freq);
if (policy_mgr_valid_sta_channel_check(psoc, ch_freq)) {
if (wlan_reg_is_dfs_for_freq(pm_ctx->pdev, ch_freq) ||
if (is_dfs ||
wlan_reg_is_passive_or_disable_for_freq(pm_ctx->pdev,
ch_freq) ||
!(policy_mgr_sta_sap_scc_on_lte_coex_chan(psoc) ||
@@ -2100,8 +2104,7 @@ QDF_STATUS policy_mgr_valid_sap_conc_channel_check(
pm_ctx->pdev) &&
wlan_reg_is_etsi13_srd_chan_for_freq(pm_ctx->pdev,
ch_freq))) {
if (wlan_reg_is_dfs_for_freq(pm_ctx->pdev, ch_freq) &&
sta_sap_scc_on_dfs_chan) {
if (is_dfs && sta_sap_scc_on_dfs_chan) {
policy_mgr_debug("STA SAP SCC is allowed on DFS channel");
goto update_chan;
}

View File

@@ -2904,4 +2904,17 @@ wlan_mlme_get_bss_load_rssi_threshold_5ghz(struct wlan_objmgr_psoc *psoc,
QDF_STATUS
wlan_mlme_get_bss_load_rssi_threshold_24ghz(struct wlan_objmgr_psoc *psoc,
int32_t *val);
/**
* wlan_mlme_check_chan_param_has_dfs() - Get dfs flag based on
* channel & channel parameters
* @pdev: pdev object
* @ch_params: channel parameters
* @chan_freq: channel frequency in MHz
*
* Return: True for dfs
*/
bool
wlan_mlme_check_chan_param_has_dfs(struct wlan_objmgr_pdev *pdev,
struct ch_params *ch_params,
uint32_t chan_freq);
#endif /* _WLAN_MLME_API_H_ */

View File

@@ -4413,3 +4413,31 @@ wlan_mlme_get_bss_load_rssi_threshold_24ghz(struct wlan_objmgr_psoc *psoc,
return QDF_STATUS_SUCCESS;
}
bool
wlan_mlme_check_chan_param_has_dfs(struct wlan_objmgr_pdev *pdev,
struct ch_params *ch_params,
uint32_t chan_freq)
{
bool is_dfs = false;
if (ch_params->ch_width == CH_WIDTH_160MHZ) {
is_dfs = true;
} else if (ch_params->ch_width == CH_WIDTH_80P80MHZ) {
if (wlan_reg_get_channel_state_for_freq(
pdev,
chan_freq) == CHANNEL_STATE_DFS ||
wlan_reg_get_channel_state_for_freq(
pdev,
ch_params->mhz_freq_seg1) == CHANNEL_STATE_DFS)
is_dfs = true;
} else if (wlan_reg_get_channel_state_for_freq(
pdev, chan_freq) == CHANNEL_STATE_DFS) {
is_dfs = true;
}
if (WLAN_REG_IS_6GHZ_CHAN_FREQ(chan_freq) ||
WLAN_REG_IS_24GHZ_CH_FREQ(chan_freq))
is_dfs = false;
return is_dfs;
}

View File

@@ -3184,10 +3184,10 @@ QDF_STATUS wlan_hdd_get_channel_for_sap_restart(
struct hdd_ap_ctx *hdd_ap_ctx;
struct hdd_context *hdd_ctx;
uint8_t mcc_to_scc_switch = 0;
struct ch_params ch_params;
struct ch_params ch_params = {0};
struct hdd_adapter *ap_adapter = wlan_hdd_get_adapter_from_vdev(
psoc, vdev_id);
uint32_t sap_ch_freq, intf_ch_freq;
uint32_t sap_ch_freq, intf_ch_freq, temp_ch_freq;
struct sap_context *sap_context;
enum sap_csa_reason_code csa_reason =
CSA_REASON_CONCURRENT_STA_CHANGED_CHANNEL;
@@ -3272,11 +3272,18 @@ QDF_STATUS wlan_hdd_get_channel_for_sap_restart(
intf_ch_freq = wlansap_check_cc_intf(sap_context);
hdd_debug("sap_vdev %d intf_ch: %d, orig freq: %d",
vdev_id, intf_ch_freq, sap_ch_freq);
temp_ch_freq = intf_ch_freq ? intf_ch_freq : sap_ch_freq;
ch_params.ch_width = wlansap_get_csa_chanwidth_from_phymode(
sap_context, temp_ch_freq);
wlan_reg_set_channel_params_for_freq(hdd_ctx->pdev, temp_ch_freq, 0,
&ch_params);
if (QDF_MCC_TO_SCC_SWITCH_FORCE_PREFERRED_WITHOUT_DISCONNECTION !=
mcc_to_scc_switch) {
if (QDF_IS_STATUS_ERROR(
policy_mgr_valid_sap_conc_channel_check(
hdd_ctx->psoc, &intf_ch_freq, sap_ch_freq, vdev_id))) {
hdd_ctx->psoc, &intf_ch_freq, sap_ch_freq, vdev_id,
&ch_params))) {
wlansap_context_put(sap_context);
hdd_debug("can't move sap to chan(freq): %u",
intf_ch_freq);

View File

@@ -1151,6 +1151,18 @@ QDF_STATUS wlansap_set_dfs_ignore_cac(mac_handle_t mac_handle,
QDF_STATUS wlansap_get_dfs_cac_state(mac_handle_t mac_handle,
eSapDfsCACState_t *cac_state);
/**
* wlansap_get_csa_chanwidth_from_phymode() - function to populate
* channel width from user configured phymode for csa
* @sap_context: sap adapter context
* @chan_freq: target channel frequency (MHz)
*
* Return: phy_ch_width
*/
enum phy_ch_width
wlansap_get_csa_chanwidth_from_phymode(struct sap_context *sap_context,
uint32_t chan_freq);
#ifdef FEATURE_AP_MCC_CH_AVOIDANCE
QDF_STATUS
wlan_sap_set_channel_avoidance(mac_handle_t mac_handle,

View File

@@ -740,6 +740,7 @@ sap_validate_chan(struct sap_context *sap_context,
uint32_t sta_sap_bit_mask = QDF_STA_MASK | QDF_SAP_MASK;
uint32_t concurrent_state;
bool go_force_scc;
struct ch_params ch_params;
mac_handle = cds_get_context(QDF_MODULE_ID_SME);
mac_ctx = MAC_CONTEXT(mac_handle);
@@ -783,13 +784,19 @@ sap_validate_chan(struct sap_context *sap_context,
QDF_TRACE(QDF_MODULE_ID_SAP, QDF_TRACE_LEVEL_DEBUG,
FL("After check overlap: con_ch:%d"),
con_ch_freq);
ch_params = sap_context->ch_params;
if (con_ch_freq &&
WLAN_REG_IS_24GHZ_CH_FREQ(con_ch_freq))
ch_params.ch_width = CH_WIDTH_20MHZ;
if (sap_context->cc_switch_mode !=
QDF_MCC_TO_SCC_SWITCH_FORCE_PREFERRED_WITHOUT_DISCONNECTION) {
if (QDF_IS_STATUS_ERROR(
policy_mgr_valid_sap_conc_channel_check(
mac_ctx->psoc, &con_ch_freq,
sap_context->chan_freq,
sap_context->sessionId))) {
sap_context->sessionId,
&ch_params))) {
QDF_TRACE(QDF_MODULE_ID_SAP,
QDF_TRACE_LEVEL_WARN,
FL("SAP can't start (no MCC)"));
@@ -802,13 +809,18 @@ sap_validate_chan(struct sap_context *sap_context,
sta_sap_scc_on_dfs_chan =
policy_mgr_is_sta_sap_scc_allowed_on_dfs_chan(
mac_ctx->psoc);
ch_params = sap_context->ch_params;
if (con_ch_freq &&
WLAN_REG_IS_24GHZ_CH_FREQ(con_ch_freq))
ch_params.ch_width = CH_WIDTH_20MHZ;
if (con_ch_freq &&
(policy_mgr_sta_sap_scc_on_lte_coex_chan(
mac_ctx->psoc) ||
policy_mgr_is_safe_channel(
mac_ctx->psoc, con_ch_freq)) &&
(!wlan_reg_is_dfs_for_freq(
mac_ctx->pdev, con_ch_freq) ||
(!wlan_mlme_check_chan_param_has_dfs(
mac_ctx->pdev, &ch_params,
con_ch_freq) ||
sta_sap_scc_on_dfs_chan)) {
QDF_TRACE(QDF_MODULE_ID_SAP,
QDF_TRACE_LEVEL_DEBUG,

View File

@@ -1186,26 +1186,12 @@ QDF_STATUS wlansap_deauth_sta(struct sap_context *sap_ctx,
params);
}
/**
* wlansap_update_csa_channel_params() - function to populate channel width and
* bonding modes.
* @sap_context: sap adapter context
* @channel: target channel
*
* Return: The QDF_STATUS code associated with performing the operation
*/
static QDF_STATUS
wlansap_update_csa_channel_params(struct sap_context *sap_context,
enum phy_ch_width
wlansap_get_csa_chanwidth_from_phymode(struct sap_context *sap_context,
uint32_t chan_freq)
{
struct mac_context *mac_ctx;
uint32_t max_fw_bw;
mac_ctx = sap_get_mac_context();
if (!mac_ctx) {
QDF_TRACE_ERROR(QDF_MODULE_ID_SAP, "Invalid MAC context");
return QDF_STATUS_E_FAULT;
}
enum phy_ch_width ch_width;
if (WLAN_REG_IS_24GHZ_CH_FREQ(chan_freq)) {
/*
@@ -1213,7 +1199,7 @@ wlansap_update_csa_channel_params(struct sap_context *sap_context,
* SAP coming up in HT40 on channel switch we are
* disabling channel bonding in 2.4Ghz.
*/
mac_ctx->sap.SapDfsInfo.new_chanWidth = CH_WIDTH_20MHZ;
ch_width = CH_WIDTH_20MHZ;
} else {
if (sap_context->csr_roamProfile.phyMode ==
eCSR_DOT11_MODE_11ac ||
@@ -1225,23 +1211,21 @@ wlansap_update_csa_channel_params(struct sap_context *sap_context,
eCSR_DOT11_MODE_11ax_ONLY) {
max_fw_bw = sme_get_vht_ch_width();
if (max_fw_bw >= WNI_CFG_VHT_CHANNEL_WIDTH_160MHZ)
mac_ctx->sap.SapDfsInfo.new_chanWidth =
CH_WIDTH_160MHZ;
ch_width = CH_WIDTH_160MHZ;
else
mac_ctx->sap.SapDfsInfo.new_chanWidth =
CH_WIDTH_80MHZ;
ch_width = CH_WIDTH_80MHZ;
} else if (sap_context->csr_roamProfile.phyMode ==
eCSR_DOT11_MODE_11n ||
sap_context->csr_roamProfile.phyMode ==
eCSR_DOT11_MODE_11n_ONLY) {
mac_ctx->sap.SapDfsInfo.new_chanWidth = CH_WIDTH_40MHZ;
ch_width = CH_WIDTH_40MHZ;
} else {
/* For legacy 11a mode return 20MHz */
mac_ctx->sap.SapDfsInfo.new_chanWidth = CH_WIDTH_20MHZ;
ch_width = CH_WIDTH_20MHZ;
}
}
return QDF_STATUS_SUCCESS;
return ch_width;
}
/**
@@ -1293,107 +1277,25 @@ static char *sap_get_csa_reason_str(enum sap_csa_reason_code reason)
}
}
QDF_STATUS wlansap_set_channel_change_with_csa(struct sap_context *sap_ctx,
/**
* wlansap_set_chan_params_for_csa() - Update sap channel parameters
* for channel switch
* @mac: mac ctx
* @sap_ctx: sap context
* @target_chan_freq: target channel frequency in MHz
* @target_bw: target bandwidth
*
* Return: QDF_STATUS_SUCCESS for success.
*/
static QDF_STATUS
wlansap_set_chan_params_for_csa(struct mac_context *mac,
struct sap_context *sap_ctx,
uint32_t target_chan_freq,
enum phy_ch_width target_bw,
bool strict)
enum phy_ch_width target_bw)
{
struct mac_context *mac;
mac_handle_t mac_handle;
bool valid;
QDF_STATUS status, hw_mode_status;
bool sta_sap_scc_on_dfs_chan;
if (!sap_ctx) {
sap_err("Invalid SAP pointer");
return QDF_STATUS_E_FAULT;
}
mac = sap_get_mac_context();
if (!mac) {
QDF_TRACE_ERROR(QDF_MODULE_ID_SAP, "Invalid MAC context");
return QDF_STATUS_E_FAULT;
}
mac_handle = MAC_HANDLE(mac);
if (strict && !policy_mgr_is_safe_channel(
mac->psoc, target_chan_freq)) {
sap_err("%u is unsafe channel freq", target_chan_freq);
return QDF_STATUS_E_FAULT;
}
sap_nofl_debug("SAP CSA: %d ---> %d BW %d conn on 5GHz:%d, csa_reason:%s(%d) strict %d vdev %d",
sap_ctx->chan_freq, target_chan_freq, target_bw,
policy_mgr_is_any_mode_active_on_band_along_with_session(
mac->psoc, sap_ctx->sessionId, POLICY_MGR_BAND_5),
sap_get_csa_reason_str(sap_ctx->csa_reason),
sap_ctx->csa_reason, strict, sap_ctx->sessionId);
sta_sap_scc_on_dfs_chan =
policy_mgr_is_sta_sap_scc_allowed_on_dfs_chan(mac->psoc);
/*
* Now, validate if the passed channel is valid in the
* current regulatory domain.
*/
if (sap_ctx->chan_freq != target_chan_freq &&
((wlan_reg_get_channel_state_for_freq(mac->pdev, target_chan_freq) ==
CHANNEL_STATE_ENABLE) ||
(wlan_reg_get_channel_state_for_freq(mac->pdev, target_chan_freq) ==
CHANNEL_STATE_DFS &&
(!policy_mgr_is_any_mode_active_on_band_along_with_session(
mac->psoc, sap_ctx->sessionId,
POLICY_MGR_BAND_5) ||
sta_sap_scc_on_dfs_chan ||
sap_ctx->csa_reason == CSA_REASON_DCS)))) {
/*
* validate target channel switch w.r.t various concurrency
* rules set.
*/
if (!strict) {
valid = wlan_sap_validate_channel_switch(mac_handle,
target_chan_freq,
sap_ctx);
if (!valid) {
sap_err("Channel freq switch to %u is not allowed due to concurrent channel interference",
mac->sap.SapDfsInfo.new_chanWidth =
wlansap_get_csa_chanwidth_from_phymode(sap_ctx,
target_chan_freq);
return QDF_STATUS_E_FAULT;
}
}
/*
* Post a CSA IE request to SAP state machine with
* target channel information and also CSA IE required
* flag set in sap_ctx only, if SAP is in SAP_STARTED
* state.
*/
if (sap_ctx->fsm_state == SAP_STARTED) {
status = wlansap_update_csa_channel_params(sap_ctx,
target_chan_freq);
if (status != QDF_STATUS_SUCCESS)
return status;
hw_mode_status =
policy_mgr_check_and_set_hw_mode_for_channel_switch(
mac->psoc, sap_ctx->sessionId,
target_chan_freq,
POLICY_MGR_UPDATE_REASON_CHANNEL_SWITCH_SAP);
/*
* If hw_mode_status is QDF_STATUS_E_FAILURE, mean HW
* mode change was required but driver failed to set HW
* mode so ignore CSA for the channel.
*/
if (hw_mode_status == QDF_STATUS_E_FAILURE) {
sap_err("HW change required but failed to set hw mode");
return hw_mode_status;
}
status = policy_mgr_reset_chan_switch_complete_evt(
mac->psoc);
if (QDF_IS_STATUS_ERROR(status)) {
policy_mgr_check_n_start_opportunistic_timer(
mac->psoc);
return status;
}
/*
* Copy the requested target channel
* to sap context.
@@ -1419,16 +1321,147 @@ QDF_STATUS wlansap_set_channel_change_with_csa(struct sap_context *sap_ctx,
if (target_bw != CH_WIDTH_MAX) {
sap_nofl_debug("SAP CSA: target bw:%d new width:%d",
target_bw,
mac->sap.SapDfsInfo.
new_ch_params.ch_width);
mac->sap.SapDfsInfo.new_ch_params.ch_width);
mac->sap.SapDfsInfo.new_ch_params.ch_width =
mac->sap.SapDfsInfo.new_chanWidth =
QDF_MIN(mac->sap.SapDfsInfo.
new_ch_params.ch_width,
QDF_MIN(mac->sap.SapDfsInfo.new_ch_params.ch_width,
target_bw);
}
wlan_reg_set_channel_params_for_freq(mac->pdev, target_chan_freq,
0, &mac->sap.SapDfsInfo.new_ch_params);
wlan_reg_set_channel_params_for_freq(
mac->pdev, target_chan_freq, 0,
&mac->sap.SapDfsInfo.new_ch_params);
return QDF_STATUS_SUCCESS;
}
QDF_STATUS wlansap_set_channel_change_with_csa(struct sap_context *sap_ctx,
uint32_t target_chan_freq,
enum phy_ch_width target_bw,
bool strict)
{
struct mac_context *mac;
mac_handle_t mac_handle;
bool valid;
QDF_STATUS status, hw_mode_status;
bool sta_sap_scc_on_dfs_chan;
bool is_dfs;
struct ch_params tmp_ch_params = {0};
enum channel_state state;
if (!sap_ctx) {
sap_err("Invalid SAP pointer");
return QDF_STATUS_E_FAULT;
}
mac = sap_get_mac_context();
if (!mac) {
QDF_TRACE_ERROR(QDF_MODULE_ID_SAP, "Invalid MAC context");
return QDF_STATUS_E_FAULT;
}
mac_handle = MAC_HANDLE(mac);
if (strict && !policy_mgr_is_safe_channel(
mac->psoc, target_chan_freq)) {
sap_err("%u is unsafe channel freq", target_chan_freq);
return QDF_STATUS_E_FAULT;
}
sap_nofl_debug("SAP CSA: %d ---> %d BW %d conn on 5GHz:%d, csa_reason:%s(%d) strict %d vdev %d",
sap_ctx->chan_freq, target_chan_freq, target_bw,
policy_mgr_is_any_mode_active_on_band_along_with_session(
mac->psoc, sap_ctx->sessionId, POLICY_MGR_BAND_5),
sap_get_csa_reason_str(sap_ctx->csa_reason),
sap_ctx->csa_reason, strict, sap_ctx->sessionId);
if (sap_ctx->chan_freq == target_chan_freq)
return QDF_STATUS_E_FAULT;
state = wlan_reg_get_channel_state_for_freq(mac->pdev,
target_chan_freq);
if (state == CHANNEL_STATE_DISABLE || state == CHANNEL_STATE_INVALID) {
sap_nofl_debug("invalid target freq %d state %d",
target_chan_freq, state);
return QDF_STATUS_E_INVAL;
}
sta_sap_scc_on_dfs_chan =
policy_mgr_is_sta_sap_scc_allowed_on_dfs_chan(mac->psoc);
tmp_ch_params.ch_width =
wlansap_get_csa_chanwidth_from_phymode(sap_ctx,
target_chan_freq);
if (target_bw != CH_WIDTH_MAX) {
tmp_ch_params.ch_width =
QDF_MIN(tmp_ch_params.ch_width, target_bw);
sap_nofl_debug("target ch_width %d to %d ", target_bw,
tmp_ch_params.ch_width);
}
wlan_reg_set_channel_params_for_freq(mac->pdev, target_chan_freq, 0,
&tmp_ch_params);
is_dfs = wlan_mlme_check_chan_param_has_dfs(
mac->pdev, &tmp_ch_params,
target_chan_freq);
/*
* Now, validate if the passed channel is valid in the
* current regulatory domain.
*/
if (!is_dfs ||
(!policy_mgr_is_any_mode_active_on_band_along_with_session(
mac->psoc, sap_ctx->sessionId,
POLICY_MGR_BAND_5) ||
sta_sap_scc_on_dfs_chan ||
sap_ctx->csa_reason == CSA_REASON_DCS)) {
/*
* validate target channel switch w.r.t various concurrency
* rules set.
*/
if (!strict) {
valid = wlan_sap_validate_channel_switch(mac_handle,
target_chan_freq,
sap_ctx);
if (!valid) {
sap_err("Channel freq switch to %u is not allowed due to concurrent channel interference",
target_chan_freq);
return QDF_STATUS_E_FAULT;
}
}
/*
* Post a CSA IE request to SAP state machine with
* target channel information and also CSA IE required
* flag set in sap_ctx only, if SAP is in SAP_STARTED
* state.
*/
if (sap_ctx->fsm_state == SAP_STARTED) {
status = wlansap_set_chan_params_for_csa(
mac, sap_ctx, target_chan_freq,
target_bw);
if (QDF_IS_STATUS_ERROR(status))
return status;
hw_mode_status =
policy_mgr_check_and_set_hw_mode_for_channel_switch(
mac->psoc, sap_ctx->sessionId,
target_chan_freq,
POLICY_MGR_UPDATE_REASON_CHANNEL_SWITCH_SAP);
/*
* If hw_mode_status is QDF_STATUS_E_FAILURE, mean HW
* mode change was required but driver failed to set HW
* mode so ignore CSA for the channel.
*/
if (hw_mode_status == QDF_STATUS_E_FAILURE) {
sap_err("HW change required but failed to set hw mode");
return hw_mode_status;
}
status = policy_mgr_reset_chan_switch_complete_evt(
mac->psoc);
if (QDF_IS_STATUS_ERROR(status)) {
policy_mgr_check_n_start_opportunistic_timer(
mac->psoc);
return status;
}
/*
* Set the CSA IE required flag.
*/
@@ -1472,7 +1505,8 @@ QDF_STATUS wlansap_set_channel_change_with_csa(struct sap_context *sap_ctx,
} else {
sap_err("Channel freq = %d is not valid in the current"
"regulatory domain", target_chan_freq);
"regulatory domain, is_dfs %d", target_chan_freq,
is_dfs);
return QDF_STATUS_E_FAULT;
}