[PATCH 4.19 021/306] mwifiex: Fix NL80211_TX_POWER_LIMITED
From: Greg Kroah-Hartman
Date: Wed Nov 27 2019 - 15:55:49 EST
From: Adrian Bunk <bunk@xxxxxxxxxx>
[ Upstream commit 65a576e27309120e0621f54d5c81eb9128bd56be ]
NL80211_TX_POWER_LIMITED was treated as NL80211_TX_POWER_AUTOMATIC,
which is the opposite of what should happen and can cause nasty
regulatory problems.
if/else converted to a switch without default to make gcc warn
on unhandled enum values.
Signed-off-by: Adrian Bunk <bunk@xxxxxxxxxx>
Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/wireless/marvell/mwifiex/cfg80211.c | 13 +++++++++++--
drivers/net/wireless/marvell/mwifiex/ioctl.h | 1 +
drivers/net/wireless/marvell/mwifiex/sta_ioctl.c | 11 +++++++----
3 files changed, 19 insertions(+), 6 deletions(-)
diff --git a/drivers/net/wireless/marvell/mwifiex/cfg80211.c b/drivers/net/wireless/marvell/mwifiex/cfg80211.c
index 47ec5293c045d..7b74ef71bef1d 100644
--- a/drivers/net/wireless/marvell/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/marvell/mwifiex/cfg80211.c
@@ -376,11 +376,20 @@ mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
struct mwifiex_power_cfg power_cfg;
int dbm = MBM_TO_DBM(mbm);
- if (type == NL80211_TX_POWER_FIXED) {
+ switch (type) {
+ case NL80211_TX_POWER_FIXED:
power_cfg.is_power_auto = 0;
+ power_cfg.is_power_fixed = 1;
power_cfg.power_level = dbm;
- } else {
+ break;
+ case NL80211_TX_POWER_LIMITED:
+ power_cfg.is_power_auto = 0;
+ power_cfg.is_power_fixed = 0;
+ power_cfg.power_level = dbm;
+ break;
+ case NL80211_TX_POWER_AUTOMATIC:
power_cfg.is_power_auto = 1;
+ break;
}
priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
diff --git a/drivers/net/wireless/marvell/mwifiex/ioctl.h b/drivers/net/wireless/marvell/mwifiex/ioctl.h
index 48e154e1865df..0dd592ea6e833 100644
--- a/drivers/net/wireless/marvell/mwifiex/ioctl.h
+++ b/drivers/net/wireless/marvell/mwifiex/ioctl.h
@@ -267,6 +267,7 @@ struct mwifiex_ds_encrypt_key {
struct mwifiex_power_cfg {
u32 is_power_auto;
+ u32 is_power_fixed;
u32 power_level;
};
diff --git a/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c b/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c
index 843d65bba1811..74e50566db1f2 100644
--- a/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c
+++ b/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c
@@ -688,6 +688,9 @@ int mwifiex_set_tx_power(struct mwifiex_private *priv,
txp_cfg = (struct host_cmd_ds_txpwr_cfg *) buf;
txp_cfg->action = cpu_to_le16(HostCmd_ACT_GEN_SET);
if (!power_cfg->is_power_auto) {
+ u16 dbm_min = power_cfg->is_power_fixed ?
+ dbm : priv->min_tx_power_level;
+
txp_cfg->mode = cpu_to_le32(1);
pg_tlv = (struct mwifiex_types_power_group *)
(buf + sizeof(struct host_cmd_ds_txpwr_cfg));
@@ -702,7 +705,7 @@ int mwifiex_set_tx_power(struct mwifiex_private *priv,
pg->last_rate_code = 0x03;
pg->modulation_class = MOD_CLASS_HR_DSSS;
pg->power_step = 0;
- pg->power_min = (s8) dbm;
+ pg->power_min = (s8) dbm_min;
pg->power_max = (s8) dbm;
pg++;
/* Power group for modulation class OFDM */
@@ -710,7 +713,7 @@ int mwifiex_set_tx_power(struct mwifiex_private *priv,
pg->last_rate_code = 0x07;
pg->modulation_class = MOD_CLASS_OFDM;
pg->power_step = 0;
- pg->power_min = (s8) dbm;
+ pg->power_min = (s8) dbm_min;
pg->power_max = (s8) dbm;
pg++;
/* Power group for modulation class HTBW20 */
@@ -718,7 +721,7 @@ int mwifiex_set_tx_power(struct mwifiex_private *priv,
pg->last_rate_code = 0x20;
pg->modulation_class = MOD_CLASS_HT;
pg->power_step = 0;
- pg->power_min = (s8) dbm;
+ pg->power_min = (s8) dbm_min;
pg->power_max = (s8) dbm;
pg->ht_bandwidth = HT_BW_20;
pg++;
@@ -727,7 +730,7 @@ int mwifiex_set_tx_power(struct mwifiex_private *priv,
pg->last_rate_code = 0x20;
pg->modulation_class = MOD_CLASS_HT;
pg->power_step = 0;
- pg->power_min = (s8) dbm;
+ pg->power_min = (s8) dbm_min;
pg->power_max = (s8) dbm;
pg->ht_bandwidth = HT_BW_40;
}
--
2.20.1