Re: [PATCH] staging:rtl8723au: core: Fix error reported by checkpatch.

[Joe Perches <joe@perches.com>]

On Mon, 2014-10-27 at 09:43 +0100, Jes Sorensen wrote:
> Sanjeev Sharma <sanjeev_sharma@mentor.com> writes:
> > This is a patch to the rtw_cmd.c file that fixes
> > Error reported by checkpatch.
[]
> > diff --git a/drivers/staging/rtl8723au/core/rtw_cmd.c b/drivers/staging/rtl8723au/core/rtw_cmd.c
[]
> > @@ -957,7 +957,7 @@ static void traffic_status_watchdog(struct rtw_adapter *padapter)
> >  		/*  check traffic for  powersaving. */
> >  			if (((pmlmepriv->LinkDetectInfo.NumRxUnicastOkInPeriod +
> >  			      pmlmepriv->LinkDetectInfo.NumTxOkInPeriod) > 8) ||
> > -			    pmlmepriv->LinkDetectInfo.NumRxUnicastOkInPeriod >2)
> > +			    pmlmepriv->LinkDetectInfo.NumRxUnicastOkInPeriod > 2)
> >  				bEnterPS = false;
> >  			else
> >  				bEnterPS = true;
> 
> This makes the line longer than 80 characters, that is worse than the
> 'problem' you are fixing.

The code already has dozens of long lines already.

This is generally a problem because the variable names
are pretty long so strict 80 column adherence generally
isn't possible.

A possible way to shorten these relatively long variable
name/line lengths is to use a temporary for

	pmlmeprv->LinkDetectInfo

	struct rt_link_detect *ldi = &pmlmeprv->LinkDetectInfo;

so:

 drivers/staging/rtl8723au/core/rtw_cmd.c | 46 ++++++++++++++++----------------
 1 file changed, 23 insertions(+), 23 deletions(-)

diff --git a/drivers/staging/rtl8723au/core/rtw_cmd.c b/drivers/staging/rtl8723au/core/rtw_cmd.c
index d2d7edf..1b24945 100644
--- a/drivers/staging/rtl8723au/core/rtw_cmd.c
+++ b/drivers/staging/rtl8723au/core/rtw_cmd.c
@@ -922,34 +922,33 @@ static void traffic_status_watchdog(struct rtw_adapter *padapter)
 	u8 bHigherBusyTxTraffic = false;
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 	int BusyThreshold = 100;
+	struct rt_link_detect *ldi = &pmlmepriv->LinkDetectInfo;
+
 	/*  */
 	/*  Determine if our traffic is busy now */
 	/*  */
 	if (check_fwstate(pmlmepriv, _FW_LINKED)) {
 		if (rtl8723a_BT_coexist(padapter))
 			BusyThreshold = 50;
-		else if (pmlmepriv->LinkDetectInfo.bBusyTraffic)
+		else if (ldi->bBusyTraffic)
 			BusyThreshold = 75;
 		/*  if we raise bBusyTraffic in last watchdog, using
 		    lower threshold. */
-		if (pmlmepriv->LinkDetectInfo.NumRxOkInPeriod > BusyThreshold ||
-		    pmlmepriv->LinkDetectInfo.NumTxOkInPeriod > BusyThreshold) {
+		if (ldi->NumRxOkInPeriod > BusyThreshold ||
+		    ldi->NumTxOkInPeriod > BusyThreshold) {
 			bBusyTraffic = true;
 
-			if (pmlmepriv->LinkDetectInfo.NumRxOkInPeriod >
-			    pmlmepriv->LinkDetectInfo.NumTxOkInPeriod)
+			if (ldi->NumRxOkInPeriod > ldi->NumTxOkInPeriod)
 				bRxBusyTraffic = true;
 			else
 				bTxBusyTraffic = true;
 		}
 
 		/*  Higher Tx/Rx data. */
-		if (pmlmepriv->LinkDetectInfo.NumRxOkInPeriod > 4000 ||
-		    pmlmepriv->LinkDetectInfo.NumTxOkInPeriod > 4000) {
+		if (ldi->NumRxOkInPeriod > 4000 ||
+		    ldi->NumTxOkInPeriod > 4000) {
 			bHigherBusyTraffic = true;
-
-			if (pmlmepriv->LinkDetectInfo.NumRxOkInPeriod >
-			    pmlmepriv->LinkDetectInfo.NumTxOkInPeriod)
+			if (ldi->NumRxOkInPeriod > ldi->NumTxOkInPeriod)
 				bHigherBusyRxTraffic = true;
 			else
 				bHigherBusyTxTraffic = true;
@@ -958,9 +957,9 @@ static void traffic_status_watchdog(struct rtw_adapter *padapter)
 		if (!rtl8723a_BT_coexist(padapter) ||
 		    !rtl8723a_BT_using_antenna_1(padapter)) {
 		/*  check traffic for  powersaving. */
-			if (((pmlmepriv->LinkDetectInfo.NumRxUnicastOkInPeriod +
-			      pmlmepriv->LinkDetectInfo.NumTxOkInPeriod) > 8) ||
-			    pmlmepriv->LinkDetectInfo.NumRxUnicastOkInPeriod >2)
+			if (((ldi->NumRxUnicastOkInPeriod +
+			      ldi->NumTxOkInPeriod) > 8) ||
+			    ldi->NumRxUnicastOkInPeriod > 2)
 				bEnterPS = false;
 			else
 				bEnterPS = true;
@@ -971,18 +970,19 @@ static void traffic_status_watchdog(struct rtw_adapter *padapter)
 			else
 				LPS_Leave23a(padapter);
 		}
-	} else
+	} else {
 		LPS_Leave23a(padapter);
+	}
 
-	pmlmepriv->LinkDetectInfo.NumRxOkInPeriod = 0;
-	pmlmepriv->LinkDetectInfo.NumTxOkInPeriod = 0;
-	pmlmepriv->LinkDetectInfo.NumRxUnicastOkInPeriod = 0;
-	pmlmepriv->LinkDetectInfo.bBusyTraffic = bBusyTraffic;
-	pmlmepriv->LinkDetectInfo.bTxBusyTraffic = bTxBusyTraffic;
-	pmlmepriv->LinkDetectInfo.bRxBusyTraffic = bRxBusyTraffic;
-	pmlmepriv->LinkDetectInfo.bHigherBusyTraffic = bHigherBusyTraffic;
-	pmlmepriv->LinkDetectInfo.bHigherBusyRxTraffic = bHigherBusyRxTraffic;
-	pmlmepriv->LinkDetectInfo.bHigherBusyTxTraffic = bHigherBusyTxTraffic;
+	ldi->NumRxOkInPeriod = 0;
+	ldi->NumTxOkInPeriod = 0;
+	ldi->NumRxUnicastOkInPeriod = 0;
+	ldi->bBusyTraffic = bBusyTraffic;
+	ldi->bTxBusyTraffic = bTxBusyTraffic;
+	ldi->bRxBusyTraffic = bRxBusyTraffic;
+	ldi->bHigherBusyTraffic = bHigherBusyTraffic;
+	ldi->bHigherBusyRxTraffic = bHigherBusyRxTraffic;
+	ldi->bHigherBusyTxTraffic = bHigherBusyTxTraffic;
 }
 
 static void dynamic_chk_wk_hdl(struct rtw_adapter *padapter, u8 *pbuf, int sz)