[PATCH v2 1/2] staging: rtl8192e: reduce indentation level

[Michael Straube]

Reduce indentation level in _rtl92e_dm_rx_path_sel_byrssi() by negating
if statements and use continue in for loops. This way the indentation
level of the code that is covered by the if checks can be reduced. This
improves readability and clears two checkpatch warnings.

WARNING: Too many leading tabs - consider code refactoring

Signed-off-by: Michael Straube <straube.linux@xxxxxxxxx>
Reviewed-by: Nam Cao <namcao@xxxxxxxxxxxxx>
---
v1 -> v2:
Added Nam Cao's reviewed-by tag from v1

 drivers/staging/rtl8192e/rtl8192e/rtl_dm.c | 170 +++++++++++----------
 1 file changed, 86 insertions(+), 84 deletions(-)

diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c b/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c
index aebe67f1a46d..2fda44c5a412 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c
@@ -1335,51 +1335,52 @@ static void _rtl92e_dm_rx_path_sel_byrssi(struct net_device *dev)
 	for (i = 0; i < RF90_PATH_MAX; i++) {
 		dm_rx_path_sel_table.rf_rssi[i] = priv->stats.rx_rssi_percentage[i];
 
-		if (priv->brfpath_rxenable[i]) {
-			rf_num++;
-			cur_rf_rssi = dm_rx_path_sel_table.rf_rssi[i];
-
-			if (rf_num == 1) {
-				max_rssi_index = min_rssi_index = sec_rssi_index = i;
-				tmp_max_rssi = tmp_min_rssi = tmp_sec_rssi = cur_rf_rssi;
-			} else if (rf_num == 2) {
-				if (cur_rf_rssi >= tmp_max_rssi) {
-					tmp_max_rssi = cur_rf_rssi;
-					max_rssi_index = i;
-				} else {
-					tmp_sec_rssi = tmp_min_rssi = cur_rf_rssi;
-					sec_rssi_index = min_rssi_index = i;
-				}
+		if (!priv->brfpath_rxenable[i])
+			continue;
+
+		rf_num++;
+		cur_rf_rssi = dm_rx_path_sel_table.rf_rssi[i];
+
+		if (rf_num == 1) {
+			max_rssi_index = min_rssi_index = sec_rssi_index = i;
+			tmp_max_rssi = tmp_min_rssi = tmp_sec_rssi = cur_rf_rssi;
+		} else if (rf_num == 2) {
+			if (cur_rf_rssi >= tmp_max_rssi) {
+				tmp_max_rssi = cur_rf_rssi;
+				max_rssi_index = i;
 			} else {
-				if (cur_rf_rssi > tmp_max_rssi) {
-					tmp_sec_rssi = tmp_max_rssi;
-					sec_rssi_index = max_rssi_index;
-					tmp_max_rssi = cur_rf_rssi;
-					max_rssi_index = i;
-				} else if (cur_rf_rssi == tmp_max_rssi) {
-					tmp_sec_rssi = cur_rf_rssi;
-					sec_rssi_index = i;
-				} else if ((cur_rf_rssi < tmp_max_rssi) &&
-					   (cur_rf_rssi > tmp_sec_rssi)) {
+				tmp_sec_rssi = tmp_min_rssi = cur_rf_rssi;
+				sec_rssi_index = min_rssi_index = i;
+			}
+		} else {
+			if (cur_rf_rssi > tmp_max_rssi) {
+				tmp_sec_rssi = tmp_max_rssi;
+				sec_rssi_index = max_rssi_index;
+				tmp_max_rssi = cur_rf_rssi;
+				max_rssi_index = i;
+			} else if (cur_rf_rssi == tmp_max_rssi) {
+				tmp_sec_rssi = cur_rf_rssi;
+				sec_rssi_index = i;
+			} else if ((cur_rf_rssi < tmp_max_rssi) &&
+					(cur_rf_rssi > tmp_sec_rssi)) {
+				tmp_sec_rssi = cur_rf_rssi;
+				sec_rssi_index = i;
+			} else if (cur_rf_rssi == tmp_sec_rssi) {
+				if (tmp_sec_rssi == tmp_min_rssi) {
 					tmp_sec_rssi = cur_rf_rssi;
 					sec_rssi_index = i;
-				} else if (cur_rf_rssi == tmp_sec_rssi) {
-					if (tmp_sec_rssi == tmp_min_rssi) {
-						tmp_sec_rssi = cur_rf_rssi;
-						sec_rssi_index = i;
-					}
-				} else if ((cur_rf_rssi < tmp_sec_rssi) &&
-					   (cur_rf_rssi > tmp_min_rssi)) {
-					;
-				} else if (cur_rf_rssi == tmp_min_rssi) {
-					if (tmp_sec_rssi == tmp_min_rssi) {
-						tmp_min_rssi = cur_rf_rssi;
-						min_rssi_index = i;
-					}
-				} else if (cur_rf_rssi < tmp_min_rssi) {
+				}
+			} else if ((cur_rf_rssi < tmp_sec_rssi) &&
+					(cur_rf_rssi > tmp_min_rssi)) {
+				;
+			} else if (cur_rf_rssi == tmp_min_rssi) {
+				if (tmp_sec_rssi == tmp_min_rssi) {
 					tmp_min_rssi = cur_rf_rssi;
 					min_rssi_index = i;
 				}
+			} else if (cur_rf_rssi < tmp_min_rssi) {
+				tmp_min_rssi = cur_rf_rssi;
+				min_rssi_index = i;
 			}
 		}
 	}
@@ -1387,59 +1388,60 @@ static void _rtl92e_dm_rx_path_sel_byrssi(struct net_device *dev)
 	rf_num = 0;
 	if (dm_rx_path_sel_table.cck_method == CCK_Rx_Version_2) {
 		for (i = 0; i < RF90_PATH_MAX; i++) {
-			if (priv->brfpath_rxenable[i]) {
-				rf_num++;
-				cur_cck_pwdb =
-					 dm_rx_path_sel_table.cck_pwdb_sta[i];
+			if (!priv->brfpath_rxenable[i])
+				continue;
 
-				if (rf_num == 1) {
+			rf_num++;
+			cur_cck_pwdb =
+					dm_rx_path_sel_table.cck_pwdb_sta[i];
+
+			if (rf_num == 1) {
+				cck_rx_ver2_max_index = i;
+				cck_rx_ver2_sec_index = i;
+				tmp_cck_max_pwdb = cur_cck_pwdb;
+				tmp_cck_min_pwdb = cur_cck_pwdb;
+				tmp_cck_sec_pwdb = cur_cck_pwdb;
+			} else if (rf_num == 2) {
+				if (cur_cck_pwdb >= tmp_cck_max_pwdb) {
+					tmp_cck_max_pwdb = cur_cck_pwdb;
 					cck_rx_ver2_max_index = i;
+				} else {
+					tmp_cck_sec_pwdb = cur_cck_pwdb;
+					tmp_cck_min_pwdb = cur_cck_pwdb;
 					cck_rx_ver2_sec_index = i;
+				}
+			} else {
+				if (cur_cck_pwdb > tmp_cck_max_pwdb) {
+					tmp_cck_sec_pwdb =
+							tmp_cck_max_pwdb;
+					cck_rx_ver2_sec_index =
+							cck_rx_ver2_max_index;
 					tmp_cck_max_pwdb = cur_cck_pwdb;
-					tmp_cck_min_pwdb = cur_cck_pwdb;
+					cck_rx_ver2_max_index = i;
+				} else if (cur_cck_pwdb ==
+						tmp_cck_max_pwdb) {
 					tmp_cck_sec_pwdb = cur_cck_pwdb;
-				} else if (rf_num == 2) {
-					if (cur_cck_pwdb >= tmp_cck_max_pwdb) {
-						tmp_cck_max_pwdb = cur_cck_pwdb;
-						cck_rx_ver2_max_index = i;
-					} else {
-						tmp_cck_sec_pwdb = cur_cck_pwdb;
-						tmp_cck_min_pwdb = cur_cck_pwdb;
-						cck_rx_ver2_sec_index = i;
-					}
-				} else {
-					if (cur_cck_pwdb > tmp_cck_max_pwdb) {
+					cck_rx_ver2_sec_index = i;
+				} else if (PWDB_IN_RANGE) {
+					tmp_cck_sec_pwdb = cur_cck_pwdb;
+					cck_rx_ver2_sec_index = i;
+				} else if (cur_cck_pwdb ==
+						tmp_cck_sec_pwdb) {
+					if (tmp_cck_sec_pwdb ==
+						tmp_cck_min_pwdb) {
 						tmp_cck_sec_pwdb =
-							 tmp_cck_max_pwdb;
+								cur_cck_pwdb;
 						cck_rx_ver2_sec_index =
-							 cck_rx_ver2_max_index;
-						tmp_cck_max_pwdb = cur_cck_pwdb;
-						cck_rx_ver2_max_index = i;
-					} else if (cur_cck_pwdb ==
-						   tmp_cck_max_pwdb) {
-						tmp_cck_sec_pwdb = cur_cck_pwdb;
-						cck_rx_ver2_sec_index = i;
-					} else if (PWDB_IN_RANGE) {
-						tmp_cck_sec_pwdb = cur_cck_pwdb;
-						cck_rx_ver2_sec_index = i;
-					} else if (cur_cck_pwdb ==
-						   tmp_cck_sec_pwdb) {
-						if (tmp_cck_sec_pwdb ==
-						    tmp_cck_min_pwdb) {
-							tmp_cck_sec_pwdb =
-								 cur_cck_pwdb;
-							cck_rx_ver2_sec_index =
-								 i;
-						}
-					} else if ((cur_cck_pwdb < tmp_cck_sec_pwdb) &&
-						   (cur_cck_pwdb > tmp_cck_min_pwdb)) {
-						;
-					} else if (cur_cck_pwdb == tmp_cck_min_pwdb) {
-						if (tmp_cck_sec_pwdb == tmp_cck_min_pwdb)
-							tmp_cck_min_pwdb = cur_cck_pwdb;
-					} else if (cur_cck_pwdb < tmp_cck_min_pwdb) {
-						tmp_cck_min_pwdb = cur_cck_pwdb;
+								i;
 					}
+				} else if ((cur_cck_pwdb < tmp_cck_sec_pwdb) &&
+						(cur_cck_pwdb > tmp_cck_min_pwdb)) {
+					;
+				} else if (cur_cck_pwdb == tmp_cck_min_pwdb) {
+					if (tmp_cck_sec_pwdb == tmp_cck_min_pwdb)
+						tmp_cck_min_pwdb = cur_cck_pwdb;
+				} else if (cur_cck_pwdb < tmp_cck_min_pwdb) {
+					tmp_cck_min_pwdb = cur_cck_pwdb;
 				}
 			}
 		}
-- 
2.45.1