linux-kernel - Re: [PATCH 16/22] dvb-usb: Replace comments with C99 initializers

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Message-ID: <63a5e3143e904d1391490f27cc106be894b52ca2.camel@perches.com>
Date:   Sat, 26 Mar 2022 12:51:44 -0700
From:   Joe Perches <joe@...ches.com>
To:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Benjamin Stürz <benni@...erz.xyz>
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Subject: Re: [PATCH 16/22] dvb-usb: Replace comments with C99 initializers

On Sat, 2022-03-26 at 19:27 +0100, Mauro Carvalho Chehab wrote:
> Em Sat, 26 Mar 2022 19:24:54 +0100
> Mauro Carvalho Chehab <mchehab@...nel.org> escreveu:
> 
> > Em Sat, 26 Mar 2022 17:59:03 +0100
> > Benjamin Stürz <benni@...erz.xyz> escreveu:
> > 
> > > This replaces comments with C99's designated
> > > initializers because the kernel supports them now.
> > > 
> > > Signed-off-by: Benjamin Stürz <benni@...erz.xyz>
> > > ---
> > >  drivers/media/usb/dvb-usb/dibusb-mb.c | 62 +++++++++++++--------------
> > >  drivers/media/usb/dvb-usb/dibusb-mc.c | 34 +++++++--------
> > >  2 files changed, 48 insertions(+), 48 deletions(-)
> > > 
> > > diff --git a/drivers/media/usb/dvb-usb/dibusb-mb.c b/drivers/media/usb/dvb-usb/dibusb-mb.c
> > > index e9dc27f73970..f188e07f518b 100644
> > > --- a/drivers/media/usb/dvb-usb/dibusb-mb.c
> > > +++ b/drivers/media/usb/dvb-usb/dibusb-mb.c
> > > @@ -122,40 +122,40 @@ static int dibusb_probe(struct usb_interface *intf,
> > >  
> > >  /* do not change the order of the ID table */
> > >  static struct usb_device_id dibusb_dib3000mb_table [] = {
> > > -/* 00 */	{ USB_DEVICE(USB_VID_WIDEVIEW,		USB_PID_AVERMEDIA_DVBT_USB_COLD) },
> > > -/* 01 */	{ USB_DEVICE(USB_VID_WIDEVIEW,		USB_PID_AVERMEDIA_DVBT_USB_WARM) },
> > > -/* 02 */	{ USB_DEVICE(USB_VID_COMPRO,		USB_PID_COMPRO_DVBU2000_COLD) },
> > > -/* 03 */	{ USB_DEVICE(USB_VID_COMPRO,		USB_PID_COMPRO_DVBU2000_WARM) },
> > > -/* 04 */	{ USB_DEVICE(USB_VID_COMPRO_UNK,	USB_PID_COMPRO_DVBU2000_UNK_COLD) },
> > > -/* 05 */	{ USB_DEVICE(USB_VID_DIBCOM,		USB_PID_DIBCOM_MOD3000_COLD) },
> > > -/* 06 */	{ USB_DEVICE(USB_VID_DIBCOM,		USB_PID_DIBCOM_MOD3000_WARM) },
> > > -/* 07 */	{ USB_DEVICE(USB_VID_EMPIA,		USB_PID_KWORLD_VSTREAM_COLD) },
> > > -/* 08 */	{ USB_DEVICE(USB_VID_EMPIA,		USB_PID_KWORLD_VSTREAM_WARM) },
> > > -/* 09 */	{ USB_DEVICE(USB_VID_GRANDTEC,		USB_PID_GRANDTEC_DVBT_USB_COLD) },
> > > -/* 10 */	{ USB_DEVICE(USB_VID_GRANDTEC,		USB_PID_GRANDTEC_DVBT_USB_WARM) },
> > > -/* 11 */	{ USB_DEVICE(USB_VID_GRANDTEC,		USB_PID_DIBCOM_MOD3000_COLD) },
> > > -/* 12 */	{ USB_DEVICE(USB_VID_GRANDTEC,		USB_PID_DIBCOM_MOD3000_WARM) },
> > > -/* 13 */	{ USB_DEVICE(USB_VID_HYPER_PALTEK,	USB_PID_UNK_HYPER_PALTEK_COLD) },
> > > -/* 14 */	{ USB_DEVICE(USB_VID_HYPER_PALTEK,	USB_PID_UNK_HYPER_PALTEK_WARM) },
> > > -/* 15 */	{ USB_DEVICE(USB_VID_VISIONPLUS,	USB_PID_TWINHAN_VP7041_COLD) },
> > > -/* 16 */	{ USB_DEVICE(USB_VID_VISIONPLUS,	USB_PID_TWINHAN_VP7041_WARM) },
> > > -/* 17 */	{ USB_DEVICE(USB_VID_TWINHAN,		USB_PID_TWINHAN_VP7041_COLD) },
> > > -/* 18 */	{ USB_DEVICE(USB_VID_TWINHAN,		USB_PID_TWINHAN_VP7041_WARM) },
> > > -/* 19 */	{ USB_DEVICE(USB_VID_ULTIMA_ELECTRONIC,	USB_PID_ULTIMA_TVBOX_COLD) },
> > > -/* 20 */	{ USB_DEVICE(USB_VID_ULTIMA_ELECTRONIC,	USB_PID_ULTIMA_TVBOX_WARM) },
> > > -/* 21 */	{ USB_DEVICE(USB_VID_ULTIMA_ELECTRONIC,	USB_PID_ULTIMA_TVBOX_AN2235_COLD) },
> > > -/* 22 */	{ USB_DEVICE(USB_VID_ULTIMA_ELECTRONIC,	USB_PID_ULTIMA_TVBOX_AN2235_WARM) },
> > > -/* 23 */	{ USB_DEVICE(USB_VID_ADSTECH,		USB_PID_ADSTECH_USB2_COLD) },
> > > +[0]  =	{ USB_DEVICE(USB_VID_WIDEVIEW,		USB_PID_AVERMEDIA_DVBT_USB_COLD) },
> > > +[1]  =	{ USB_DEVICE(USB_VID_WIDEVIEW,		USB_PID_AVERMEDIA_DVBT_USB_WARM) },  
> > 
> > While here, please properly indent this table, and respect the 80-columns limit,
> > e. g.:
> > 
> > static struct usb_device_id dibusb_dib3000mb_table [] = {
> > 	[0] = { USB_DEVICE(USB_VID_WIDEVIEW 
> > 			   USB_PID_AVERMEDIA_DVBT_USB_COLD) 
> > 	},
> > 	[1]  =	{ USB_DEVICE(USB_VID_WIDEVIEW,
> > 			     USB_PID_AVERMEDIA_DVBT_USB_WARM)
> > 	},
> > 	...
> 
> Err.... something went wrong with my space bar and I ended hitting send to
> soon... I meant:
> 
> static struct usb_device_id dibusb_dib3000mb_table [] = {
>  	[0] = { USB_DEVICE(USB_VID_WIDEVIEW 
>  			   USB_PID_AVERMEDIA_DVBT_USB_COLD) 
>  	},
>  	[1] = { USB_DEVICE(USB_VID_WIDEVIEW,
>  			   USB_PID_AVERMEDIA_DVBT_USB_WARM)
>  	},
> 	...
> };

maybe static const too

and

maybe

#define DIB_DEVICE(vid, pid)	\
	{ USB_DEVICE(USB_VID_ ## vid, USB_PID_ ## pid) }

so maybe

static const struct usb_device_id dibusb_dib3000mb_table[] = {
	[0] = DIB_DEVICE(WIDEVIEW, AVERMEDIA_DVBT_USB_COLD),
	[1] = DIB_DEVICE(WIDEVIEW, AVERMEDIA_DVBT_USB_WARM),
	...
};

though I _really_ doubt the value of the specific indexing.

I think this isn't really worth changing at all.