[PATCH 6/8] staging: ks7010: Remove level of indentation

["Tobin C. Harding" <me@xxxxxxxx>]

'if' statement conditional guards large block of code. Conditional can
be inverted and function return. This allows following code to have
one level of indentation removed. However the conditional is complicated,
it can be moved into a separate variable to ease reading.

Move complicated conditional to separate variable. Invert conditional
and remove level of indentation as per previous commit.

Signed-off-by: Tobin C. Harding <me@xxxxxxxx>
---
 drivers/staging/ks7010/ks_hostif.c | 121 ++++++++++++++++++-------------------
 1 file changed, 59 insertions(+), 62 deletions(-)

diff --git a/drivers/staging/ks7010/ks_hostif.c b/drivers/staging/ks7010/ks_hostif.c
index d28e9af..d479a88 100644
--- a/drivers/staging/ks7010/ks_hostif.c
+++ b/drivers/staging/ks7010/ks_hostif.c
@@ -413,6 +413,7 @@ static int function_needs_naming(struct ks_wlan_private *priv,
 	char buf[128];
 	struct mic_failure_t *mic_failure;
 	union iwreq_data wrqu;
+	int cond;
 
 	if (memcmp(&eth_hdr->h_source[0], &priv->eth_addr[0], ETH_ALEN) != 0)
 		return 0;
@@ -426,71 +427,67 @@ static int function_needs_naming(struct ks_wlan_private *priv,
 	auth_type = get_WORD(priv);	/* AuthType */
 	eth_proto = ntohs(eth_hdr->h_proto);
 
-	if (((auth_type == TYPE_PMK1
-				&& priv->wpa.pairwise_suite ==
-				IW_AUTH_CIPHER_TKIP) || (auth_type == TYPE_GMK1
-							&& priv->wpa.
-							group_suite ==
-							IW_AUTH_CIPHER_TKIP)
-			|| (auth_type == TYPE_GMK2
-				&& priv->wpa.group_suite ==
-				IW_AUTH_CIPHER_TKIP))
-		&& priv->wpa.key[auth_type - 1].key_len) {
-		DPRINTK(4, "TKIP: protocol=%04X: size=%u\n",
-			eth_proto, priv->rx_size);
-		/* MIC save */
-		memcpy(&RecvMIC[0],
-			(priv->rxp) + ((priv->rx_size) - 8), 8);
-		priv->rx_size = priv->rx_size - 8;
-		if (auth_type > 0 && auth_type < 4) {	/* auth_type check */
-			MichaelMICFunction(&michel_mic, (uint8_t *) priv->wpa.key[auth_type - 1].rx_mic_key, (uint8_t *) priv->rxp, (int)priv->rx_size, (uint8_t) 0,	/* priority */
-					(uint8_t *)
-					michel_mic.Result);
+	cond = ((auth_type == TYPE_PMK1 && priv->wpa.pairwise_suite == IW_AUTH_CIPHER_TKIP) ||
+		(auth_type == TYPE_GMK1 && priv->wpa.group_suite == IW_AUTH_CIPHER_TKIP) ||
+		(auth_type == TYPE_GMK2 && priv->wpa.group_suite == IW_AUTH_CIPHER_TKIP));
+
+	if (!cond || !priv->wpa.key[auth_type - 1].key_len)
+		return 0;
+	
+	DPRINTK(4, "TKIP: protocol=%04X: size=%u\n",
+		eth_proto, priv->rx_size);
+	/* MIC save */
+	memcpy(&RecvMIC[0],
+		(priv->rxp) + ((priv->rx_size) - 8), 8);
+	priv->rx_size = priv->rx_size - 8;
+	if (auth_type > 0 && auth_type < 4) {	/* auth_type check */
+		MichaelMICFunction(&michel_mic, (uint8_t *) priv->wpa.key[auth_type - 1].rx_mic_key, (uint8_t *) priv->rxp, (int)priv->rx_size, (uint8_t) 0,	/* priority */
+				(uint8_t *)
+				michel_mic.Result);
+	}
+	if (memcmp(michel_mic.Result, RecvMIC, 8)) {
+		now = jiffies;
+		mic_failure = &priv->wpa.mic_failure;
+		/* MIC FAILURE */
+		if (mic_failure->last_failure_time &&
+			(now -
+				mic_failure->last_failure_time) /
+			HZ >= 60) {
+			mic_failure->failure = 0;
 		}
-		if (memcmp(michel_mic.Result, RecvMIC, 8)) {
-			now = jiffies;
-			mic_failure = &priv->wpa.mic_failure;
-			/* MIC FAILURE */
-			if (mic_failure->last_failure_time &&
-				(now -
-					mic_failure->last_failure_time) /
-				HZ >= 60) {
-				mic_failure->failure = 0;
-			}
-			DPRINTK(4, "MIC FAILURE\n");
-			if (mic_failure->failure == 0) {
-				mic_failure->failure = 1;
-				mic_failure->counter = 0;
-			} else if (mic_failure->failure == 1) {
-				mic_failure->failure = 2;
+		DPRINTK(4, "MIC FAILURE\n");
+		if (mic_failure->failure == 0) {
+			mic_failure->failure = 1;
+			mic_failure->counter = 0;
+		} else if (mic_failure->failure == 1) {
+			mic_failure->failure = 2;
+			mic_failure->counter =
+				(uint16_t) ((now -
+						mic_failure->
+						last_failure_time)
+					/ HZ);
+			if (!mic_failure->counter)	/* mic_failure counter value range 1-60 */
 				mic_failure->counter =
-					(uint16_t) ((now -
-							mic_failure->
-							last_failure_time)
-						/ HZ);
-				if (!mic_failure->counter)	/* mic_failure counter value range 1-60 */
-					mic_failure->counter =
-						1;
-			}
-			priv->wpa.mic_failure.
-				last_failure_time = now;
-			/*  needed parameters: count, keyid, key type, TSC */
-			sprintf(buf,
-				"MLME-MICHAELMICFAILURE.indication(keyid=%d %scast addr="
-				"%pM)",
-				auth_type - 1,
-				eth_hdr->
-				h_dest[0] & 0x01 ? "broad" :
-				"uni", eth_hdr->h_source);
-			memset(&wrqu, 0, sizeof(wrqu));
-			wrqu.data.length = strlen(buf);
-			DPRINTK(4,
-				"IWEVENT:MICHAELMICFAILURE\n");
-			wireless_send_event(priv->net_dev,
-					IWEVCUSTOM, &wrqu,
-					buf);
-			return -ERROR;
+					1;
 		}
+		priv->wpa.mic_failure.
+			last_failure_time = now;
+		/*  needed parameters: count, keyid, key type, TSC */
+		sprintf(buf,
+			"MLME-MICHAELMICFAILURE.indication(keyid=%d %scast addr="
+			"%pM)",
+			auth_type - 1,
+			eth_hdr->
+			h_dest[0] & 0x01 ? "broad" :
+			"uni", eth_hdr->h_source);
+		memset(&wrqu, 0, sizeof(wrqu));
+		wrqu.data.length = strlen(buf);
+		DPRINTK(4,
+			"IWEVENT:MICHAELMICFAILURE\n");
+		wireless_send_event(priv->net_dev,
+				IWEVCUSTOM, &wrqu,
+				buf);
+		return -ERROR;
 	}
 	return 0;
 }
-- 
2.7.4

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