ath9k: Cleanup ineffective return values

This patch makes the return type of some of the functions
void as those functions always return true

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

6 files changed, 36 insertions, 85 deletions

diff --git a/drivers/net/wireless/ath/ath9k/eeprom.c b/drivers/net/wireless/ath/ath9k/eeprom.c
index 44fee5ae8925..a2fda702b620 100644
--- a/drivers/net/wireless/ath/ath9k/eeprom.c
+++ b/drivers/net/wireless/ath/ath9k/eeprom.c
@@ -694,7 +694,7 @@ static void ath9k_hw_get_4k_gain_boundaries_pdadcs(struct ath_hw *ah,
 #undef TMP_VAL_VPD_TABLE
 }
 
-static bool ath9k_hw_set_4k_power_cal_table(struct ath_hw *ah,
+static void ath9k_hw_set_4k_power_cal_table(struct ath_hw *ah,
                                   struct ath9k_channel *chan,
                                   int16_t *pTxPowerIndexOffset)
 {
@@ -805,11 +805,9 @@ static bool ath9k_hw_set_4k_power_cal_table(struct ath_hw *ah,
         }
 
         *pTxPowerIndexOffset = 0;
-
-        return true;
 }
 
-static bool ath9k_hw_set_4k_power_per_rate_table(struct ath_hw *ah,
+static void ath9k_hw_set_4k_power_per_rate_table(struct ath_hw *ah,
                                                  struct ath9k_channel *chan,
                                                  int16_t *ratesArray,
                                                  u16 cfgCtl,
@@ -1041,10 +1039,9 @@ static bool ath9k_hw_set_4k_power_per_rate_table(struct ath_hw *ah,
                 ratesArray[rateExtOfdm] = targetPowerOfdmExt.tPow2x[0];
                 ratesArray[rateExtCck] = targetPowerCckExt.tPow2x[0];
         }
-        return true;
 }
 
-static int ath9k_hw_4k_set_txpower(struct ath_hw *ah,
+static void ath9k_hw_4k_set_txpower(struct ath_hw *ah,
                                    struct ath9k_channel *chan,
                                    u16 cfgCtl,
                                    u8 twiceAntennaReduction,
@@ -1065,22 +1062,13 @@ static int ath9k_hw_4k_set_txpower(struct ath_hw *ah,
                 ht40PowerIncForPdadc = pModal->ht40PowerIncForPdadc;
         }
 
-        if (!ath9k_hw_set_4k_power_per_rate_table(ah, chan,
+        ath9k_hw_set_4k_power_per_rate_table(ah, chan,
                                                &ratesArray[0], cfgCtl,
                                                twiceAntennaReduction,
                                                twiceMaxRegulatoryPower,
-                                               powerLimit)) {
-                DPRINTF(ah->ah_sc, ATH_DBG_EEPROM,
-                        "ath9k_hw_set_txpower: unable to set "
-                        "tx power per rate table\n");
-                return -EIO;
-        }
+                                               powerLimit);
 
-        if (!ath9k_hw_set_4k_power_cal_table(ah, chan, &txPowerIndexOffset)) {
-                DPRINTF(ah->ah_sc, ATH_DBG_EEPROM,
-                         "ath9k_hw_set_txpower: unable to set power table\n");
-                return -EIO;
-        }
+        ath9k_hw_set_4k_power_cal_table(ah, chan, &txPowerIndexOffset);
 
         for (i = 0; i < ARRAY_SIZE(ratesArray); i++) {
                 ratesArray[i] = (int16_t)(txPowerIndexOffset + ratesArray[i]);
@@ -1168,7 +1156,6 @@ static int ath9k_hw_4k_set_txpower(struct ath_hw *ah,
         else
                 ah->regulatory.max_power_level = ratesArray[i];
 
-        return 0;
 }
 
 static void ath9k_hw_4k_set_addac(struct ath_hw *ah,
@@ -2103,7 +2090,7 @@ static void ath9k_hw_get_def_gain_boundaries_pdadcs(struct ath_hw *ah,
         return;
 }
 
-static bool ath9k_hw_set_def_power_cal_table(struct ath_hw *ah,
+static void ath9k_hw_set_def_power_cal_table(struct ath_hw *ah,
                                   struct ath9k_channel *chan,
                                   int16_t *pTxPowerIndexOffset)
 {
@@ -2255,13 +2242,11 @@ static bool ath9k_hw_set_def_power_cal_table(struct ath_hw *ah,
         }
 
         *pTxPowerIndexOffset = 0;
-
-        return true;
 #undef SM_PD_GAIN
 #undef SM_PDGAIN_B
 }
 
-static bool ath9k_hw_set_def_power_per_rate_table(struct ath_hw *ah,
+static void ath9k_hw_set_def_power_per_rate_table(struct ath_hw *ah,
                                                   struct ath9k_channel *chan,
                                                   int16_t *ratesArray,
                                                   u16 cfgCtl,
@@ -2549,10 +2534,9 @@ static bool ath9k_hw_set_def_power_per_rate_table(struct ath_hw *ah,
                                 targetPowerCckExt.tPow2x[0];
                 }
         }
-        return true;
 }
 
-static int ath9k_hw_def_set_txpower(struct ath_hw *ah,
+static void ath9k_hw_def_set_txpower(struct ath_hw *ah,
                                     struct ath9k_channel *chan,
                                     u16 cfgCtl,
                                     u8 twiceAntennaReduction,
@@ -2575,22 +2559,13 @@ static int ath9k_hw_def_set_txpower(struct ath_hw *ah,
                 ht40PowerIncForPdadc = pModal->ht40PowerIncForPdadc;
         }
 
-        if (!ath9k_hw_set_def_power_per_rate_table(ah, chan,
+        ath9k_hw_set_def_power_per_rate_table(ah, chan,
                                                &ratesArray[0], cfgCtl,
                                                twiceAntennaReduction,
                                                twiceMaxRegulatoryPower,
-                                               powerLimit)) {
-                DPRINTF(ah->ah_sc, ATH_DBG_EEPROM,
-                        "ath9k_hw_set_txpower: unable to set "
-                        "tx power per rate table\n");
-                return -EIO;
-        }
+                                               powerLimit);
 
-        if (!ath9k_hw_set_def_power_cal_table(ah, chan, &txPowerIndexOffset)) {
-                DPRINTF(ah->ah_sc, ATH_DBG_EEPROM,
-                         "ath9k_hw_set_txpower: unable to set power table\n");
-                return -EIO;
-        }
+        ath9k_hw_set_def_power_cal_table(ah, chan, &txPowerIndexOffset);
 
         for (i = 0; i < ARRAY_SIZE(ratesArray); i++) {
                 ratesArray[i] = (int16_t)(txPowerIndexOffset + ratesArray[i]);
@@ -2717,8 +2692,6 @@ static int ath9k_hw_def_set_txpower(struct ath_hw *ah,
                         "Invalid chainmask configuration\n");
                 break;
         }
-
-        return 0;
 }
 
 static u8 ath9k_hw_def_get_num_ant_config(struct ath_hw *ah,
diff --git a/drivers/net/wireless/ath/ath9k/eeprom.h b/drivers/net/wireless/ath/ath9k/eeprom.h
index 7c59dc47f912..67b8bd12941a 100644
--- a/drivers/net/wireless/ath/ath9k/eeprom.h
+++ b/drivers/net/wireless/ath/ath9k/eeprom.h
@@ -494,7 +494,7 @@ struct eeprom_ops {
                                       struct ath9k_channel *chan);
         void (*set_board_values)(struct ath_hw *hw, struct ath9k_channel *chan);
         void (*set_addac)(struct ath_hw *hw, struct ath9k_channel *chan);
-        int (*set_txpower)(struct ath_hw *hw, struct ath9k_channel *chan,
+        void (*set_txpower)(struct ath_hw *hw, struct ath9k_channel *chan,
                            u16 cfgCtl, u8 twiceAntennaReduction,
                            u8 twiceMaxRegulatoryPower, u8 powerLimit);
         u16 (*get_spur_channel)(struct ath_hw *ah, u16 i, bool is2GHz);
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 9e1db85e5651..4acfab514916 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -1274,7 +1274,6 @@ static int ath9k_hw_process_ini(struct ath_hw *ah,
         int i, regWrites = 0;
         struct ieee80211_channel *channel = chan->chan;
         u32 modesIndex, freqIndex;
-        int status;
 
         switch (chan->chanmode) {
         case CHANNEL_A:
@@ -1376,17 +1375,12 @@ static int ath9k_hw_process_ini(struct ath_hw *ah,
         if (OLC_FOR_AR9280_20_LATER)
                 ath9k_olc_init(ah);
 
-        status = ah->eep_ops->set_txpower(ah, chan,
-                                  ath9k_regd_get_ctl(&ah->regulatory, chan),
-                                  channel->max_antenna_gain * 2,
-                                  channel->max_power * 2,
-                                  min((u32) MAX_RATE_POWER,
-                                      (u32) ah->regulatory.power_limit));
-        if (status != 0) {
-                DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
-                        "Error initializing transmit power\n");
-                return -EIO;
-        }
+        ah->eep_ops->set_txpower(ah, chan,
+                                 ath9k_regd_get_ctl(&ah->regulatory, chan),
+                                 channel->max_antenna_gain * 2,
+                                 channel->max_power * 2,
+                                 min((u32) MAX_RATE_POWER,
+                                 (u32) ah->regulatory.power_limit));
 
         if (!ath9k_hw_set_rf_regs(ah, chan, freqIndex)) {
                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
@@ -1701,11 +1695,7 @@ static bool ath9k_hw_channel_change(struct ath_hw *ah,
         ath9k_hw_set_regs(ah, chan, macmode);
 
         if (AR_SREV_9280_10_OR_LATER(ah)) {
-                if (!(ath9k_hw_ar9280_set_channel(ah, chan))) {
-                        DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
-                                "Failed to set channel\n");
-                        return false;
-                }
+                ath9k_hw_ar9280_set_channel(ah, chan);
         } else {
                 if (!(ath9k_hw_set_channel(ah, chan))) {
                         DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
@@ -1714,16 +1704,12 @@ static bool ath9k_hw_channel_change(struct ath_hw *ah,
                 }
         }
 
-        if (ah->eep_ops->set_txpower(ah, chan,
+        ah->eep_ops->set_txpower(ah, chan,
                              ath9k_regd_get_ctl(&ah->regulatory, chan),
                              channel->max_antenna_gain * 2,
                              channel->max_power * 2,
                              min((u32) MAX_RATE_POWER,
-                                 (u32) ah->regulatory.power_limit)) != 0) {
-                DPRINTF(ah->ah_sc, ATH_DBG_EEPROM,
-                        "Error initializing transmit power\n");
-                return false;
-        }
+                             (u32) ah->regulatory.power_limit));
 
         synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
         if (IS_CHAN_B(chan))
@@ -2311,13 +2297,11 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
 
         REG_WRITE(ah, AR_RSSI_THR, INIT_RSSI_THR);
 
-        if (AR_SREV_9280_10_OR_LATER(ah)) {
-                if (!(ath9k_hw_ar9280_set_channel(ah, chan)))
-                        return -EIO;
-        } else {
+        if (AR_SREV_9280_10_OR_LATER(ah))
+                ath9k_hw_ar9280_set_channel(ah, chan);
+        else
                 if (!(ath9k_hw_set_channel(ah, chan)))
                         return -EIO;
-        }
 
         for (i = 0; i < AR_NUM_DCU; i++)
                 REG_WRITE(ah, AR_DQCUMASK(i), 1 << i);
@@ -3748,22 +3732,19 @@ bool ath9k_hw_disable(struct ath_hw *ah)
         return ath9k_hw_set_reset_reg(ah, ATH9K_RESET_COLD);
 }
 
-bool ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit)
+void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit)
 {
         struct ath9k_channel *chan = ah->curchan;
         struct ieee80211_channel *channel = chan->chan;
 
         ah->regulatory.power_limit = min(limit, (u32) MAX_RATE_POWER);
 
-        if (ah->eep_ops->set_txpower(ah, chan,
-                             ath9k_regd_get_ctl(&ah->regulatory, chan),
-                             channel->max_antenna_gain * 2,
-                             channel->max_power * 2,
-                             min((u32) MAX_RATE_POWER,
-                                 (u32) ah->regulatory.power_limit)) != 0)
-                return false;
-
-        return true;
+        ah->eep_ops->set_txpower(ah, chan,
+                                 ath9k_regd_get_ctl(&ah->regulatory, chan),
+                                 channel->max_antenna_gain * 2,
+                                 channel->max_power * 2,
+                                 min((u32) MAX_RATE_POWER,
+                                 (u32) ah->regulatory.power_limit));
 }
 
 void ath9k_hw_setmac(struct ath_hw *ah, const u8 *mac)
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index ddb24c47ebcf..dd8508ef6e05 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -590,7 +590,7 @@ u32 ath9k_hw_getrxfilter(struct ath_hw *ah);
 void ath9k_hw_setrxfilter(struct ath_hw *ah, u32 bits);
 bool ath9k_hw_phy_disable(struct ath_hw *ah);
 bool ath9k_hw_disable(struct ath_hw *ah);
-bool ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit);
+void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit);
 void ath9k_hw_setmac(struct ath_hw *ah, const u8 *mac);
 void ath9k_hw_setopmode(struct ath_hw *ah);
 void ath9k_hw_setmcastfilter(struct ath_hw *ah, u32 filter0, u32 filter1);
diff --git a/drivers/net/wireless/ath/ath9k/phy.c b/drivers/net/wireless/ath/ath9k/phy.c
index 5ec9ce91d979..aaa941561c36 100644
--- a/drivers/net/wireless/ath/ath9k/phy.c
+++ b/drivers/net/wireless/ath/ath9k/phy.c
@@ -96,9 +96,8 @@ ath9k_hw_set_channel(struct ath_hw *ah, struct ath9k_channel *chan)
         return true;
 }
 
-bool
-ath9k_hw_ar9280_set_channel(struct ath_hw *ah,
-                            struct ath9k_channel *chan)
+void ath9k_hw_ar9280_set_channel(struct ath_hw *ah,
+                                 struct ath9k_channel *chan)
 {
         u16 bMode, fracMode, aModeRefSel = 0;
         u32 freq, ndiv, channelSel = 0, channelFrac = 0, reg32 = 0;
@@ -169,8 +168,6 @@ ath9k_hw_ar9280_set_channel(struct ath_hw *ah,
 
         ah->curchan = chan;
         ah->curchan_rad_index = -1;
-
-        return true;
 }
 
 static void
diff --git a/drivers/net/wireless/ath/ath9k/phy.h b/drivers/net/wireless/ath/ath9k/phy.h
index 296d0e985f25..c70f530642f6 100644
--- a/drivers/net/wireless/ath/ath9k/phy.h
+++ b/drivers/net/wireless/ath/ath9k/phy.h
@@ -17,7 +17,7 @@
 #ifndef PHY_H
 #define PHY_H
 
-bool ath9k_hw_ar9280_set_channel(struct ath_hw *ah,
+void ath9k_hw_ar9280_set_channel(struct ath_hw *ah,
                                  struct ath9k_channel
                                  *chan);
 bool ath9k_hw_set_channel(struct ath_hw *ah,