Re: [Outreachy kernel] [PATCH] staging: xgifb: correct the multiple line dereference to fix coding stye errors

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On Tue, 21 Feb 2017, Arushi Singhal wrote:

> Error was reported by checkpatch.pl as
> WARNING: Avoid multiple line dereference...
> if there is boolean operator then it is fixed by Splitting line at
> boolean operator.

This is massively execeeding the 80 character boundary, and not for
something trivial like a string.  Maybe the code can be reorganized in
some other way.

julia

>
> Signed-off-by: Arushi Singhal <arushisinghal19971997@xxxxxxxxx>
> ---
>  drivers/staging/xgifb/XGI_main_26.c | 15 +++++----------
>  drivers/staging/xgifb/vb_setmode.c  | 19 +++++++------------
>  2 files changed, 12 insertions(+), 22 deletions(-)
>
> diff --git a/drivers/staging/xgifb/XGI_main_26.c b/drivers/staging/xgifb/XGI_main_26.c
> index 6930f7eb741b..4fd9bfafccc5 100644
> --- a/drivers/staging/xgifb/XGI_main_26.c
> +++ b/drivers/staging/xgifb/XGI_main_26.c
> @@ -880,28 +880,23 @@ static void XGIfb_post_setmode(struct xgifb_video_info *xgifb_info)
>  			if ((filter >= 0) && (filter <= 7)) {
>  				pr_debug("FilterTable[%d]-%d: %*ph\n",
>  					 filter_tb, filter,
> -					 4, XGI_TV_filter[filter_tb].
> -						   filter[filter]);
> +					 4, XGI_TV_filter[filter_tb].filter[filter]);
>  				xgifb_reg_set(
>  					XGIPART2,
>  					0x35,
> -					(XGI_TV_filter[filter_tb].
> -						filter[filter][0]));
> +					(XGI_TV_filter[filter_tb].filter[filter][0]));
>  				xgifb_reg_set(
>  					XGIPART2,
>  					0x36,
> -					(XGI_TV_filter[filter_tb].
> -						filter[filter][1]));
> +					(XGI_TV_filter[filter_tb].filter[filter][1]));
>  				xgifb_reg_set(
>  					XGIPART2,
>  					0x37,
> -					(XGI_TV_filter[filter_tb].
> -						filter[filter][2]));
> +					(XGI_TV_filter[filter_tb].filter[filter][2]));
>  				xgifb_reg_set(
>  					XGIPART2,
>  					0x38,
> -					(XGI_TV_filter[filter_tb].
> -						filter[filter][3]));
> +					(XGI_TV_filter[filter_tb].filter[filter][3]));
>  			}
>  		}
>  	}
> diff --git a/drivers/staging/xgifb/vb_setmode.c b/drivers/staging/xgifb/vb_setmode.c
> index 7c7c8c8f1df3..00f1ae3adcda 100644
> --- a/drivers/staging/xgifb/vb_setmode.c
> +++ b/drivers/staging/xgifb/vb_setmode.c
> @@ -221,8 +221,7 @@ static unsigned char XGI_AjustCRT2Rate(unsigned short ModeIdIndex,
>
>  	for (; XGI330_RefIndex[RefreshRateTableIndex + (*i)].ModeID ==
>  	       tempbx; (*i)--) {
> -		infoflag = XGI330_RefIndex[RefreshRateTableIndex + (*i)].
> -				Ext_InfoFlag;
> +		infoflag = XGI330_RefIndex[RefreshRateTableIndex + (*i)].Ext_InfoFlag;
>  		if (infoflag & tempax)
>  			return 1;
>
> @@ -231,8 +230,7 @@ static unsigned char XGI_AjustCRT2Rate(unsigned short ModeIdIndex,
>  	}
>
>  	for ((*i) = 0;; (*i)++) {
> -		infoflag = XGI330_RefIndex[RefreshRateTableIndex + (*i)].
> -				Ext_InfoFlag;
> +		infoflag = XGI330_RefIndex[RefreshRateTableIndex + (*i)].Ext_InfoFlag;
>  		if (XGI330_RefIndex[RefreshRateTableIndex + (*i)].ModeID
>  				!= tempbx) {
>  			return 0;
> @@ -654,8 +652,8 @@ static void XGI_UpdateXG21CRTC(unsigned short ModeNo,
>  	    (XGI330_RefIndex[RefreshRateTableIndex].Ext_CRT1CRTC ==
>  						      RES640x480x60))
>  		index = 12;
> -	else if (ModeNo == 0x2E && (XGI330_RefIndex[RefreshRateTableIndex].
> -				Ext_CRT1CRTC == RES640x480x72))
> +	else if (ModeNo == 0x2E && (XGI330_RefIndex[RefreshRateTableIndex].Ext_CRT1CRTC ==
> +				RES640x480x72))
>  		index = 13;
>  	else if (ModeNo == 0x2F)
>  		index = 14;
> @@ -5092,8 +5090,7 @@ unsigned short XGI_GetRatePtrCRT2(struct xgi_hw_device_info *pXGIHWDE,
>
>  	i = 0;
>  	do {
> -		if (XGI330_RefIndex[RefreshRateTableIndex + i].
> -			ModeID != ModeNo)
> +		if (XGI330_RefIndex[RefreshRateTableIndex + i].ModeID != ModeNo)
>  			break;
>  		temp = XGI330_RefIndex[RefreshRateTableIndex + i].Ext_InfoFlag;
>  		temp &= ModeTypeMask;
> @@ -5105,8 +5102,7 @@ unsigned short XGI_GetRatePtrCRT2(struct xgi_hw_device_info *pXGIHWDE,
>  	} while (index != 0xFFFF);
>  	if (!(pVBInfo->VBInfo & SetCRT2ToRAMDAC)) {
>  		if (pVBInfo->VBInfo & SetInSlaveMode) {
> -			temp = XGI330_RefIndex[RefreshRateTableIndex + i - 1].
> -				Ext_InfoFlag;
> +			temp = XGI330_RefIndex[RefreshRateTableIndex + i - 1].Ext_InfoFlag;
>  			if (temp & InterlaceMode)
>  				i++;
>  		}
> @@ -5483,8 +5479,7 @@ unsigned char XGISetModeNew(struct xgifb_video_info *xgifb_info,
>  						   ModeIdIndex))
>  				return 0;
>
> -		pVBInfo->ModeType = XGI330_EModeIDTable[ModeIdIndex].
> -						Ext_ModeFlag & ModeTypeMask;
> +		pVBInfo->ModeType = XGI330_EModeIDTable[ModeIdIndex].Ext_ModeFlag & ModeTypeMask;
>
>  		pVBInfo->SetFlag = 0;
>  		pVBInfo->VBInfo = DisableCRT2Display;
> --
> 2.11.0
>
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