linux-kernel - Re: [PATCH v2 2/2] staging: rtl8723bs: Initializing variables at declaration

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Message-ID: <4dcbf1fc70d565b5845ab7bc823cb1e9a94f6084.camel@gmail.com>
Date: Thu, 10 Apr 2025 08:39:47 +0300
From: Erick Karanja <karanja99erick@...il.com>
To: Julia Lawall <julia.lawall@...ia.fr>
Cc: gregkh@...uxfoundation.org, outreachy@...ts.linux.dev, 
	philipp.g.hortmann@...il.com, linux-staging@...ts.linux.dev, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/2] staging: rtl8723bs: Initializing variables at
 declaration

On Wed, 2025-04-09 at 11:41 -0400, Julia Lawall wrote:
> 
> 
> On Wed, 9 Apr 2025, Erick Karanja wrote:
> 
> > Make the code more readable by moving trivial
> > initializations up with the declarations instead
> > of wasting a line on that.
> > 
> > Signed-off-by: Erick Karanja <karanja99erick@...il.com>
> > ---
> >  .../staging/rtl8723bs/hal/rtl8723bs_xmit.c    | 39 ++++++---------
> > ----
> >  1 file changed, 11 insertions(+), 28 deletions(-)
> > 
> > diff --git a/drivers/staging/rtl8723bs/hal/rtl8723bs_xmit.c
> > b/drivers/staging/rtl8723bs/hal/rtl8723bs_xmit.c
> > index 5dc1c12fe03e..d134d185bfae 100644
> > --- a/drivers/staging/rtl8723bs/hal/rtl8723bs_xmit.c
> > +++ b/drivers/staging/rtl8723bs/hal/rtl8723bs_xmit.c
> > @@ -120,13 +120,10 @@ static s32 rtl8723_dequeue_writeport(struct
> > adapter *padapter)
> >   */
> >  s32 rtl8723bs_xmit_buf_handler(struct adapter *padapter)
> >  {
> > -	struct xmit_priv *pxmitpriv;
> > +	struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
> >  	u8 queue_empty, queue_pending;
> >  	s32 ret;
> > 
> > -
> > -	pxmitpriv = &padapter->xmitpriv;
> > -
> >  	if (wait_for_completion_interruptible(&pxmitpriv-
> > >xmit_comp)) {
> >  		netdev_emerg(padapter->pnetdev,
> >  			     "%s: down SdioXmitBufSema fail!\n",
> > __func__);
> > @@ -242,8 +239,7 @@ static s32 xmit_xmitframes(struct adapter
> > *padapter, struct xmit_priv *pxmitpriv
> >  						/* pxmitbuf-
> > >priv_data will be NULL, and will crash here */
> >  						if (pxmitbuf->len
> > > 0 &&
> >  						    pxmitbuf-
> > >priv_data) {
> > -							struct
> > xmit_frame *pframe;
> > -							pframe =
> > (struct xmit_frame *)pxmitbuf->priv_data;
> > +							struct
> > xmit_frame *pframe = (struct xmit_frame *)pxmitbuf->priv_data;
> 
> I'm not sure that it's worth making this change here given that it
> makes
> the line even longer.
Hello Julia. I will make the necessary changes.
Thank you.
> 
> >  							pframe-
> > >agg_num = k;
> >  							pxmitbuf-
> > >agg_num = k;
> >  							rtl8723b_u
> > pdate_txdesc(pframe, pframe->buf_addr);
> > @@ -326,8 +322,7 @@ static s32 xmit_xmitframes(struct adapter
> > *padapter, struct xmit_priv *pxmitpriv
> >  		/*  dump xmit_buf to hw tx fifo */
> >  		if (pxmitbuf) {
> >  			if (pxmitbuf->len > 0) {
> > -				struct xmit_frame *pframe;
> > -				pframe = (struct xmit_frame
> > *)pxmitbuf->priv_data;
> > +				struct xmit_frame *pframe =
> > (struct xmit_frame *)pxmitbuf->priv_data;
> 
> This also makes a long line.
> 
> >  				pframe->agg_num = k;
> >  				pxmitbuf->agg_num = k;
> >  				rtl8723b_update_txdesc(pframe,
> > pframe->buf_addr);
> > @@ -357,12 +352,9 @@ static s32 xmit_xmitframes(struct adapter
> > *padapter, struct xmit_priv *pxmitpriv
> >   */
> >  static s32 rtl8723bs_xmit_handler(struct adapter *padapter)
> >  {
> > -	struct xmit_priv *pxmitpriv;
> > +	struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
> >  	s32 ret;
> > 
> > -
> > -	pxmitpriv = &padapter->xmitpriv;
> > -
> >  	if (wait_for_completion_interruptible(&pxmitpriv-
> > >SdioXmitStart)) {
> >  		netdev_emerg(padapter->pnetdev, "%s: SdioXmitStart
> > fail!\n",
> >  			     __func__);
> > @@ -408,13 +400,9 @@ static s32 rtl8723bs_xmit_handler(struct
> > adapter *padapter)
> > 
> >  int rtl8723bs_xmit_thread(void *context)
> >  {
> > -	s32 ret;
> > -	struct adapter *padapter;
> > -	struct xmit_priv *pxmitpriv;
> > -
> > -	ret = _SUCCESS;
> > -	padapter = context;
> > -	pxmitpriv = &padapter->xmitpriv;
> > +	s32 ret = _SUCCESS;
> > +	struct adapter *padapter = context;
> > +	struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
> > 
> >  	allow_signal(SIGTERM);
> > 
> > @@ -435,16 +423,13 @@ s32 rtl8723bs_mgnt_xmit(
> >  )
> >  {
> >  	s32 ret = _SUCCESS;
> > -	struct pkt_attrib *pattrib;
> > -	struct xmit_buf *pxmitbuf;
> > +	struct pkt_attrib *pattrib = &pmgntframe->attrib;
> > +	struct xmit_buf *pxmitbuf = pmgntframe->pxmitbuf;
> >  	struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
> >  	struct dvobj_priv *pdvobjpriv =
> > adapter_to_dvobj(padapter);
> >  	u8 *pframe = (u8 *)(pmgntframe->buf_addr) + TXDESC_OFFSET;
> >  	u8 txdesc_size = TXDESC_SIZE;
> > 
> > -	pattrib = &pmgntframe->attrib;
> > -	pxmitbuf = pmgntframe->pxmitbuf;
> > -
> >  	rtl8723b_update_txdesc(pmgntframe, pmgntframe->buf_addr);
> > 
> >  	pxmitbuf->len = txdesc_size + pattrib->last_txcmdsz;
> > @@ -557,15 +542,13 @@ s32 rtl8723bs_init_xmit_priv(struct adapter
> > *padapter)
> > 
> >  void rtl8723bs_free_xmit_priv(struct adapter *padapter)
> >  {
> > -	struct xmit_priv *pxmitpriv;
> > +	struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
> >  	struct xmit_buf *pxmitbuf;
> > -	struct __queue *pqueue;
> > +	struct __queue *pqueue = &pxmitpriv-
> > >pending_xmitbuf_queue;
> >  	struct list_head *plist, *phead;
> >  	struct list_head tmplist;
> > 
> > 
> > -	pxmitpriv = &padapter->xmitpriv;
> > -	pqueue = &pxmitpriv->pending_xmitbuf_queue;
> >  	phead = get_list_head(pqueue);
> >  	INIT_LIST_HEAD(&tmplist);
> > 
> > --
> > 2.43.0
> > 
> > 
> >