Factoring out the conditional lookup of bandwidth index into the power
limit table into it's own function simplifies the logic of
'phy_get_tx_pwr_lmt()'.

Signed-off-by: Quytelda Kahja <quyte...@tamalin.org>
---
 .../staging/rtl8723bs/hal/hal_com_phycfg.c    | 26 ++++++++++++-------
 1 file changed, 17 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/rtl8723bs/hal/hal_com_phycfg.c 
b/drivers/staging/rtl8723bs/hal/hal_com_phycfg.c
index 4b5219481b33..6d8a07ac7bb3 100644
--- a/drivers/staging/rtl8723bs/hal/hal_com_phycfg.c
+++ b/drivers/staging/rtl8723bs/hal/hal_com_phycfg.c
@@ -1612,6 +1612,22 @@ static s8 phy_GetChannelIndexOfTxPowerLimit(u8 Band, u8 
Channel)
        return channelIndex;
 }
 
+static s16 get_bandwidth_idx(const enum CHANNEL_WIDTH bandwidth)
+{
+       switch (bandwidth) {
+       case CHANNEL_WIDTH_20:
+               return 0;
+       case CHANNEL_WIDTH_40:
+               return 1;
+       case CHANNEL_WIDTH_80:
+               return 2;
+       case CHANNEL_WIDTH_160:
+               return 3;
+       default:
+               return -1;
+       }
+}
+
 static s16 get_rate_sctn_idx(const u8 rate)
 {
        switch (rate) {
@@ -1703,15 +1719,7 @@ s8 phy_get_tx_pwr_lmt(struct adapter *adapter, u32 
reg_pwr_tbl_sel,
        else if (band_type == BAND_ON_5G)
                idx_band = 1;
 
-       if (bandwidth == CHANNEL_WIDTH_20)
-               idx_bandwidth = 0;
-       else if (bandwidth == CHANNEL_WIDTH_40)
-               idx_bandwidth = 1;
-       else if (bandwidth == CHANNEL_WIDTH_80)
-               idx_bandwidth = 2;
-       else if (bandwidth == CHANNEL_WIDTH_160)
-               idx_bandwidth = 3;
-
+       idx_bandwidth = get_bandwidth_idx(bandwidth);
        idx_rate_sctn = get_rate_sctn_idx(data_rate);
 
        if (band_type == BAND_ON_5G && idx_rate_sctn == 0)
-- 
2.17.1

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