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* [PATCH 1/2] staging: keucr: Use memcmp() instaed of custom StringCmp() and some style cleanups
@ 2010-12-31 19:28 Javier Martinez Canillas
  2010-12-31 20:26 ` [PATCH 1/2] staging: keucr: Use memcmp() instaed of custom Joe Perches
  2011-01-01  9:00 ` Dan Carpenter
  0 siblings, 2 replies; 3+ messages in thread
From: Javier Martinez Canillas @ 2010-12-31 19:28 UTC (permalink / raw)
  To: kernel-janitors


Signed-off-by: Javier Martinez Canillas <martinez.javier@gmail.com>
---
 drivers/staging/keucr/smilsub.c |   65 ++++++++++++++++++++------------------
 1 files changed, 34 insertions(+), 31 deletions(-)

diff --git a/drivers/staging/keucr/smilsub.c b/drivers/staging/keucr/smilsub.c
index ce10cf2..8256fad 100644
--- a/drivers/staging/keucr/smilsub.c
+++ b/drivers/staging/keucr/smilsub.c
@@ -1482,54 +1482,57 @@ BYTE _Check_D_DevCode(BYTE dcode)
 //----- Check_D_ReadError() ----------------------------------------------
 int Check_D_ReadError(BYTE *redundant)
 {
-    // Driver 不做 ECC Check
-    return(SUCCESS);
-    if (!StringCmp((char *)(redundant+0x0D),(char *)EccBuf,3))
-        if (!StringCmp((char *)(redundant+0x08),(char *)(EccBuf+0x03),3))
-            return(SUCCESS);
+	/* Driver ECC Check */
+	return SUCCESS;
+	if (!memcmp(redundant+0x0D, EccBuf, 3))
+		if (!memcmp(redundant+0x08, EccBuf+0x03, 3))
+			return SUCCESS;
 
-    return(ERROR);
+	return ERROR;
 }
 
 //----- Check_D_Correct() ----------------------------------------------
 int Check_D_Correct(BYTE *buf,BYTE *redundant)
 {
-    // Driver 不做 ECC Check
-    return(SUCCESS);
-    if (StringCmp((char *)(redundant+0x0D),(char *)EccBuf,3))
-        if (_Correct_D_SwECC(buf,redundant+0x0D,EccBuf))
-            return(ERROR);
-
-    buf+=0x100;
-    if (StringCmp((char *)(redundant+0x08),(char *)(EccBuf+0x03),3))
-        if (_Correct_D_SwECC(buf,redundant+0x08,EccBuf+0x03))
-            return(ERROR);
-
-    return(SUCCESS);
+	/* Driver ECC Check */
+	return SUCCESS;
+	if (memcmp(redundant+0x0D, EccBuf, 3))
+		if (_Correct_D_SwECC(buf, redundant+0x0D, EccBuf))
+			return ERROR;
+
+	buf += 0x100;
+	if (memcmp(redundant+0x08, EccBuf+0x03, 3))
+		if (_Correct_D_SwECC(buf, redundant+0x08, EccBuf+0x03))
+			return ERROR;
+
+	return SUCCESS;
 }
 
 //----- Check_D_CISdata() ----------------------------------------------
 int Check_D_CISdata(BYTE *buf, BYTE *redundant)
 {
-    BYTE cis[]={0x01,0x03,0xD9,0x01,0xFF,0x18,0x02,0xDF,0x01,0x20};
+	BYTE cis[] = {0x01, 0x03, 0xD9, 0x01, 0xFF, 0x18, 0x02,
+		      0xDF, 0x01, 0x20};
+
+	int cis_len = sizeof(cis);
 
-    if (!IsSSFDCCompliance && !IsXDCompliance)
-        return(SUCCESS);             // 目前為強制 SUCCESS [Arnold 02-08-23] SSFDC 測試, 不能強制 SUCCESS
+	if (!IsSSFDCCompliance && !IsXDCompliance)
+		return SUCCESS;
 
-    if (!StringCmp((char *)(redundant+0x0D),(char *)EccBuf,3))
-        return(StringCmp((char *)buf,(char *)cis,10));
+	if (!memcmp(redundant+0x0D, EccBuf, 3))
+		return memcmp(buf, cis, cis_len);
 
-    if (!_Correct_D_SwECC(buf,redundant+0x0D,EccBuf))
-        return(StringCmp((char *)buf,(char *)cis,10));
+	if (!_Correct_D_SwECC(buf, redundant+0x0D, EccBuf))
+		return memcmp(buf, cis, cis_len);
 
-    buf+=0x100;
-    if (!StringCmp((char *)(redundant+0x08),(char *)(EccBuf+0x03),3))
-        return(StringCmp((char *)buf,(char *)cis,10));
+	buf += 0x100;
+	if (!memcmp(redundant+0x08, EccBuf+0x03, 3))
+		return memcmp(buf, cis, cis_len);
 
-    if (!_Correct_D_SwECC(buf,redundant+0x08,EccBuf+0x03))
-        return(StringCmp((char *)buf,(char *)cis,10));
+	if (!_Correct_D_SwECC(buf, redundant+0x08, EccBuf+0x03))
+		return memcmp(buf, cis, cis_len);
 
-    return(ERROR);
+	return ERROR;
 }
 
 //----- Set_D_RightECC() ----------------------------------------------
-- 
1.7.0.4

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^ permalink raw reply related	[flat|nested] 3+ messages in thread

* Re: [PATCH 1/2] staging: keucr: Use memcmp() instaed of custom
  2010-12-31 19:28 [PATCH 1/2] staging: keucr: Use memcmp() instaed of custom StringCmp() and some style cleanups Javier Martinez Canillas
@ 2010-12-31 20:26 ` Joe Perches
  2011-01-01  9:00 ` Dan Carpenter
  1 sibling, 0 replies; 3+ messages in thread
From: Joe Perches @ 2010-12-31 20:26 UTC (permalink / raw)
  To: kernel-janitors

On Fri, 2010-12-31 at 20:28 +0100, Javier Martinez Canillas wrote:
> Signed-off-by: Javier Martinez Canillas <martinez.javier@gmail.com>

Hi Javier.

> diff --git a/drivers/staging/keucr/smilsub.c b/drivers/staging/keucr/smilsub.c

[]

>  int Check_D_ReadError(BYTE *redundant)
>  {
> -    // Driver 䣰 ECC Check
> -    return(SUCCESS);
> -    if (!StringCmp((char *)(redundant+0x0D),(char *)EccBuf,3))
> -        if (!StringCmp((char *)(redundant+0x08),(char *)(EccBuf+0x03),3))
> -            return(SUCCESS);
> +	/* Driver ECC Check */
> +	return SUCCESS;
> +	if (!memcmp(redundant+0x0D, EccBuf, 3))
> +		if (!memcmp(redundant+0x08, EccBuf+0x03, 3))
> +			return SUCCESS;

Generally, it's better to have success at the end
of a function and either a goto error or return
error for error conditions.

Something like:

	if (!(!memcmp(redundant+0x0D, EccBuf, 3) &&
	      !memcmp(redundant+0x08, EccBuf+0x03, 3)))
		return ERROR;

	return SUCCESS;

>  int Check_D_Correct(BYTE *buf,BYTE *redundant)
>  {
> -    // Driver 䣰 ECC Check
> -    return(SUCCESS);
> -    if (StringCmp((char *)(redundant+0x0D),(char *)EccBuf,3))
> -        if (_Correct_D_SwECC(buf,redundant+0x0D,EccBuf))
> -            return(ERROR);
> -
> -    buf+=0x100;
> -    if (StringCmp((char *)(redundant+0x08),(char *)(EccBuf+0x03),3))
> -        if (_Correct_D_SwECC(buf,redundant+0x08,EccBuf+0x03))
> -            return(ERROR);
> -
> -    return(SUCCESS);
> +	/* Driver ECC Check */
> +	return SUCCESS;
> +	if (memcmp(redundant+0x0D, EccBuf, 3))
> +		if (_Correct_D_SwECC(buf, redundant+0x0D, EccBuf))
> +			return ERROR;

You might as well take out useless code after returns
instead of just changing function names.

If you keep it you should reformat it.

	if (memcmp(redundant+0x0D, EccBuf, 3) &&
	    _Correct_D_SwECC(buf, redundant+0x0D, EccBuf))
		return ERROR;

etc...



^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [PATCH 1/2] staging: keucr: Use memcmp() instaed of custom
  2010-12-31 19:28 [PATCH 1/2] staging: keucr: Use memcmp() instaed of custom StringCmp() and some style cleanups Javier Martinez Canillas
  2010-12-31 20:26 ` [PATCH 1/2] staging: keucr: Use memcmp() instaed of custom Joe Perches
@ 2011-01-01  9:00 ` Dan Carpenter
  1 sibling, 0 replies; 3+ messages in thread
From: Dan Carpenter @ 2011-01-01  9:00 UTC (permalink / raw)
  To: kernel-janitors

On Fri, Dec 31, 2010 at 12:26:00PM -0800, Joe Perches wrote:
> On Fri, 2010-12-31 at 20:28 +0100, Javier Martinez Canillas wrote:
> 	if (!(!memcmp(redundant+0x0D, EccBuf, 3) &&
> 	      !memcmp(redundant+0x08, EccBuf+0x03, 3)))
                              ^^^          ^^^

Also we should add spaces around the '+' character.  But this is dead
code anyway so let's just merge it.

regards,
dan carpenter

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2011-01-01  9:00 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2010-12-31 19:28 [PATCH 1/2] staging: keucr: Use memcmp() instaed of custom StringCmp() and some style cleanups Javier Martinez Canillas
2010-12-31 20:26 ` [PATCH 1/2] staging: keucr: Use memcmp() instaed of custom Joe Perches
2011-01-01  9:00 ` Dan Carpenter

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