[PATCH] staging: rtl8723bs: core: Refactor nested if-else

[PATCH] staging: rtl8723bs: core: Refactor nested if-else

[Kushal Kothari]

Refactor nested if else by combining nested if into a single if condition and removing unnecessary else conditionals which leads to removing unnecessary tabs .There is no change in logic of new code.
checkpatch warning : Too many leading tabs - consider code refactoring

Signed-off-by: Kushal Kothari <kushalkothari285@gmail.com>
---
 drivers/staging/rtl8723bs/core/rtw_mlme_ext.c | 65 ++++++++-----------
 1 file changed, 26 insertions(+), 39 deletions(-)

diff --git a/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c b/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c
index 0f82f5031c43..eb10b6f85426 100644
--- a/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c
+++ b/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c
@@ -1192,46 +1192,33 @@ unsigned int OnAssocReq(struct adapter *padapter, union recv_frame *precv_frame)
 		p = pframe + WLAN_HDR_A3_LEN + ie_offset; ie_len = 0;
 		for (;;) {
 			p = rtw_get_ie(p, WLAN_EID_VENDOR_SPECIFIC, &ie_len, pkt_len - WLAN_HDR_A3_LEN - ie_offset);
-			if (p) {
-				if (!memcmp(p+2, WMM_IE, 6)) {
-
-					pstat->flags |= WLAN_STA_WME;
-
-					pstat->qos_option = 1;
-					pstat->qos_info = *(p+8);
-
-					pstat->max_sp_len = (pstat->qos_info>>5)&0x3;
-
-					if ((pstat->qos_info&0xf) != 0xf)
-						pstat->has_legacy_ac = true;
-					else
-						pstat->has_legacy_ac = false;
-
-					if (pstat->qos_info&0xf) {
-						if (pstat->qos_info&BIT(0))
-							pstat->uapsd_vo = BIT(0)|BIT(1);
-						else
-							pstat->uapsd_vo = 0;
-
-						if (pstat->qos_info&BIT(1))
-							pstat->uapsd_vi = BIT(0)|BIT(1);
-						else
-							pstat->uapsd_vi = 0;
-
-						if (pstat->qos_info&BIT(2))
-							pstat->uapsd_bk = BIT(0)|BIT(1);
-						else
-							pstat->uapsd_bk = 0;
-
-						if (pstat->qos_info&BIT(3))
-							pstat->uapsd_be = BIT(0)|BIT(1);
-						else
-							pstat->uapsd_be = 0;
-
-					}
-
-					break;
+			if (p && !memcmp(p+2, WMM_IE, 6)) {
+				pstat->flags |= WLAN_STA_WME;
+				pstat->qos_option = 1;
+				pstat->qos_info = *(p+8);
+				pstat->max_sp_len = (pstat->qos_info>>5)&0x3;
+				pstat->has_legacy_ac = false;
+				if ((pstat->qos_info&0xf) != 0xf)
+					pstat->has_legacy_ac = true;
+
+				pstat->uapsd_vo = 0;
+				if (pstat->qos_info&0xf) {
+					if (pstat->qos_info&BIT(0))
+						pstat->uapsd_vo = BIT(0)|BIT(1);
+
+					pstat->uapsd_vi = 0;
+					if (pstat->qos_info&BIT(1))
+						pstat->uapsd_vi = BIT(0)|BIT(1);
+
+					pstat->uapsd_bk = 0;
+					if (pstat->qos_info&BIT(2))
+						pstat->uapsd_bk = BIT(0)|BIT(1);
+
+					pstat->uapsd_be = 0;
+					if (pstat->qos_info&BIT(3))
+						pstat->uapsd_be = BIT(0)|BIT(1);
 				}
+				break;
 			} else {
 				break;
 			}
-- 
2.25.1

Re: [PATCH] staging: rtl8723bs: core: Refactor nested if-else

[Greg KH]

On Mon, Oct 25, 2021 at 12:55:28PM +0530, Kushal Kothari wrote:
> Refactor nested if else by combining nested if into a single if condition and removing unnecessary else conditionals which leads to removing unnecessary tabs .There is no change in logic of new code.

Very long line, please break it up at 72 columns.

And your space around the '.' is odd :(

> checkpatch warning : Too many leading tabs - consider code refactoring

What does this mean?

> 
> Signed-off-by: Kushal Kothari <kushalkothari285@gmail.com>
> ---
>  drivers/staging/rtl8723bs/core/rtw_mlme_ext.c | 65 ++++++++-----------
>  1 file changed, 26 insertions(+), 39 deletions(-)
> 

thanks,

greg k-h

Re: [Outreachy kernel] [PATCH] staging: rtl8723bs: core: Refactor nested if-else

[Praveen Kumar]

On 25-10-2021 12:55, Kushal Kothari wrote:
> Refactor nested if else by combining nested if into a single if condition and removing unnecessary else conditionals which leads to removing unnecessary tabs .There is no change in logic of new code.
> checkpatch warning : Too many leading tabs - consider code refactoring
> 
> Signed-off-by: Kushal Kothari <kushalkothari285@gmail.com>
> ---
>  drivers/staging/rtl8723bs/core/rtw_mlme_ext.c | 65 ++++++++-----------
>  1 file changed, 26 insertions(+), 39 deletions(-)
> 
> diff --git a/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c b/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c
> index 0f82f5031c43..eb10b6f85426 100644
> --- a/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c
> +++ b/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c
> @@ -1192,46 +1192,33 @@ unsigned int OnAssocReq(struct adapter *padapter, union recv_frame *precv_frame)
>  		p = pframe + WLAN_HDR_A3_LEN + ie_offset; ie_len = 0;
>  		for (;;) {
>  			p = rtw_get_ie(p, WLAN_EID_VENDOR_SPECIFIC, &ie_len, pkt_len - WLAN_HDR_A3_LEN - ie_offset);
> -			if (p) {
> -				if (!memcmp(p+2, WMM_IE, 6)) {
> -
> -					pstat->flags |= WLAN_STA_WME;
> -
> -					pstat->qos_option = 1;
> -					pstat->qos_info = *(p+8);
> -
> -					pstat->max_sp_len = (pstat->qos_info>>5)&0x3;
> -
> -					if ((pstat->qos_info&0xf) != 0xf)
> -						pstat->has_legacy_ac = true;
> -					else
> -						pstat->has_legacy_ac = false;
> -
> -					if (pstat->qos_info&0xf) {
> -						if (pstat->qos_info&BIT(0))
> -							pstat->uapsd_vo = BIT(0)|BIT(1);
> -						else
> -							pstat->uapsd_vo = 0;
> -
> -						if (pstat->qos_info&BIT(1))
> -							pstat->uapsd_vi = BIT(0)|BIT(1);
> -						else
> -							pstat->uapsd_vi = 0;
> -
> -						if (pstat->qos_info&BIT(2))
> -							pstat->uapsd_bk = BIT(0)|BIT(1);
> -						else
> -							pstat->uapsd_bk = 0;
> -
> -						if (pstat->qos_info&BIT(3))
> -							pstat->uapsd_be = BIT(0)|BIT(1);
> -						else
> -							pstat->uapsd_be = 0;
> -
> -					}
> -
> -					break;
> +			if (p && !memcmp(p+2, WMM_IE, 6)) {
> +				pstat->flags |= WLAN_STA_WME;
> +				pstat->qos_option = 1;
> +				pstat->qos_info = *(p+8);
> +				pstat->max_sp_len = (pstat->qos_info>>5)&0x3;
> +				pstat->has_legacy_ac = false;
> +				if ((pstat->qos_info&0xf) != 0xf)
> +					pstat->has_legacy_ac = true;
> +
> +				pstat->uapsd_vo = 0;
> +				if (pstat->qos_info&0xf) {
> +					if (pstat->qos_info&BIT(0))
> +						pstat->uapsd_vo = BIT(0)|BIT(1);
> +
> +					pstat->uapsd_vi = 0;
> +					if (pstat->qos_info&BIT(1))
> +						pstat->uapsd_vi = BIT(0)|BIT(1);
> +
> +					pstat->uapsd_bk = 0;
> +					if (pstat->qos_info&BIT(2))
> +						pstat->uapsd_bk = BIT(0)|BIT(1);
> +
> +					pstat->uapsd_be = 0;
> +					if (pstat->qos_info&BIT(3))
> +						pstat->uapsd_be = BIT(0)|BIT(1);
>  				}
> +				break;
>  			} else {
>  				break;
>  			}

there is a bug here, if *p* is not null, and *memcmp* failed; then we fall in else part and break, and will miss the next entry in *p* using below statement

p = p + ie_len + 2;


> 

Regards,

~Praveen.

Re: [PATCH] staging: rtl8723bs: core: Refactor nested if-else

[Fabio M. De Francesco]

On Monday, October 25, 2021 9:56:00 AM CEST kushal kothari wrote:
> >Very long line, please break it up at 72 columns.
> 
> >And your space around the '.' is odd :(
> 
> Yes,fixing it.
>
^^^^^^^^^^^^^^^^^^^^

You are still using spaces the wrong way :) 

English, as well as all natural languages that use Latin characters, use 
punctuation and a strict style that dictates how to use the spaces around it. 
Please read correctly written English texts, learn and use conventions

Thanks,

Fabio 
> 
> >> checkpatch warning : Too many leading tabs - consider code refactoring
> 
> >What does this mean?
> Asking about the warning ,correct?
> The current code is using very deep indentations (which can be avoided) and
> due to this there are many leading tabs. So the checkpatch.pl warns of  
"Too
> many leading tabs - consider code refactoring"
> <http://checkpatch.pl>
> 
> On Mon, Oct 25, 2021 at 1:03 PM Greg KH <gregkh@linuxfoundation.org> wrote:
> 
> > On Mon, Oct 25, 2021 at 12:55:28PM +0530, Kushal Kothari wrote:
> > > Refactor nested if else by combining nested if into a single if
> > condition and removing unnecessary else conditionals which leads to
> > removing unnecessary tabs .There is no change in logic of new code.
> >
> > Very long line, please break it up at 72 columns.
> >
> > And your space around the '.' is odd :(
> >
> > > checkpatch warning : Too many leading tabs - consider code refactoring
> >
> > What does this mean?
> >
> > >
> > > Signed-off-by: Kushal Kothari <kushalkothari285@gmail.com>
> > > ---
> > >  drivers/staging/rtl8723bs/core/rtw_mlme_ext.c | 65 ++++++++-----------
> > >  1 file changed, 26 insertions(+), 39 deletions(-)
> > >
> >
> > thanks,
> >
> > greg k-h
> >
>