linux-kernel - Re: [PATCH] staging: r8188eu: replace IEs with ies

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Date:   Fri, 21 Oct 2022 22:20:52 +1100
From:   Jacob Bai <jacob.bai.au@...il.com>
To:     Joe Perches <joe@...ches.com>,
        Larry Finger <Larry.Finger@...inger.net>,
        Phillip Potter <phil@...lpotter.co.uk>,
        Pavel Skripkin <paskripkin@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: r8188eu: replace IEs with ies

On Wed, Oct 19, 2022 at 09:35:32PM -0700, Joe Perches wrote:
> On Tue, 2022-10-18 at 21:54 +1100, Jacob Bai wrote:
> > Replace wlan_bssid_ex struct member IEs to ies.
> > CamelCase issue found by checkpatch.
> 
> Please try to avoid changing code merely to appease checkpatch.
> 
> What is the value of the last s?
> When is a specific index of the IEs array actually used?
> 
> Mere renaming may be removing useful markings.
> 
> (removing a lot of the rename blocks)
> 
Thanks for those advices. As this was my first patch, I tried to 
pick up an easier one to start with and followed commit 341f27d0
but changed "IEs" only. 
> > diff --git a/drivers/staging/r8188eu/include/wlan_bssdef.h b/drivers/staging/r8188eu/include/wlan_bssdef.h
> []
> > @@ -239,7 +239,7 @@ struct wlan_bssid_ex {
> >  	unsigned char SupportedRates[NDIS_802_11_LENGTH_RATES_EX];
> >  	struct wlan_phy_info	PhyInfo;
> >  	u32  IELength;
> > -	u8  IEs[MAX_IE_SZ];	/* timestamp, beacon interval, and
> > +	u8  ies[MAX_IE_SZ];	/* timestamp, beacon interval, and
> >  				 * capability information) */
> >  } __packed;
> []
> > diff --git a/drivers/staging/r8188eu/os_dep/ioctl_linux.c b/drivers/staging/r8188eu/os_dep/ioctl_linux.c
> []
> > @@ -104,11 +104,11 @@ static char *translate_scan(struct adapter *padapter,
> >  
> >  			if (pnetwork->network.Reserved[0] == 2) {/*  Probe Request */
> >  				/*	Verifying the P2P IE */
> > -				if (rtw_get_p2p_ie(pnetwork->network.IEs, pnetwork->network.IELength, NULL, &p2pielen))
> > +				if (rtw_get_p2p_ie(pnetwork->network.ies, pnetwork->network.IELength, NULL, &p2pielen))
> >  					blnGotP2PIE = true;
> >  			} else {/*  Beacon or Probe Respones */
> >  				/*	Verifying the P2P IE */
> > -				if (rtw_get_p2p_ie(&pnetwork->network.IEs[12], pnetwork->network.IELength - 12, NULL, &p2pielen))
> > +				if (rtw_get_p2p_ie(&pnetwork->network.ies[12], pnetwork->network.IELength - 12, NULL, &p2pielen))
> 
> For instance, these consistent 12 and "- 12" uses may be better as some
> alternate array.
Could you please be more detail on this?
> 
> >  					blnGotP2PIE = true;
> >  			}
> >  		}
> > @@ -131,7 +131,7 @@ static char *translate_scan(struct adapter *padapter,
> >  	start = iwe_stream_add_point(info, start, stop, &iwe, pnetwork->network.Ssid.Ssid);
> >  
> >  	/* parsing HT_CAP_IE */
> > -	p = rtw_get_ie(&pnetwork->network.IEs[12], _HT_CAPABILITY_IE_, &ht_ielen, pnetwork->network.IELength - 12);
> > +	p = rtw_get_ie(&pnetwork->network.ies[12], _HT_CAPABILITY_IE_, &ht_ielen, pnetwork->network.IELength - 12);
> >  
> >  	if (p && ht_ielen > 0) {
> >  		struct ieee80211_ht_cap *pht_capie;
> 
> etc...
> 
> Also this may be removing similarities between a few other realtek
> staging drivers
> 
> $ git grep  "\[MAX_IE_SZ\]"
> drivers/staging/r8188eu/include/wlan_bssdef.h:  u8  IEs[MAX_IE_SZ];     /* timestamp, beacon interval, and
> drivers/staging/rtl8712/wlan_bssdef.h:  u8 IEs[MAX_IE_SZ];
> drivers/staging/rtl8723bs/include/wlan_bssdef.h:        u8  ies[MAX_IE_SZ];     /* timestamp, beacon interval, and capability information) */
> 
looks like rtl8723bs has already been updated with ies, should I replace
IELength as well like the commit I followed?