Re: [PATCH v4] staging: media: av7110: coding style fixes: too many tabs

[Hans Verkuil <hverkuil+cisco@kernel.org>]

On 4/1/26 21:17, Sudarshan Srinivasan wrote:
> Fix warning reported by checkpatch.pl
> "WARNING: Too many leading tabs - consider code refactoring"
> 
> Signed-off-by: Sudarshan Srinivasan <ss22.kern.dev@gmail.com>
> ---
> v4:
>   - Added the missing check for  "feed->ts_type"
>   - Removed initialization of 'ret'
>   - handle_ts_memory_fe() accepts only "feed", "demux" and "av7110" extracted thereafter
>   - demux->playing assigned to int, instead of bool to maintain original style
> v3:
>   - Removed the additional tabs in handle_ts_memory_fe() as indicated by Greg KH
>   - Retained the original code style as suggested by Dan Carpenter
> v2:
>   - Refactored change by adding function handle_ts_memory_fe
> 
> v2: https://lore.kernel.org/linux-staging/20260318191149.109616-1-ss22.kern.dev@gmail.com/
> v1: https://lore.kernel.org/linux-staging/20260316152340.238100-1-ss22.kern.dev@gmail.com/
> 
>  drivers/staging/media/av7110/av7110.c | 36 +++++++++++++++++++--------
>  1 file changed, 26 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/staging/media/av7110/av7110.c b/drivers/staging/media/av7110/av7110.c
> index 607992100baf..486dd8010e7f 100644
> --- a/drivers/staging/media/av7110/av7110.c
> +++ b/drivers/staging/media/av7110/av7110.c
> @@ -932,6 +932,31 @@ static int dvb_feed_stop_pid(struct dvb_demux_feed *dvbdmxfeed)
>  	return ret;
>  }
> 
> +static int handle_ts_memory_fe(struct dvb_demux_feed *feed)
> +{
> +	struct dvb_demux *demux = feed->demux;
> +	struct av7110 *av7110 = demux->priv;
> +	int ret;
> +
> +	if (!(feed->ts_type & TS_DECODER))
> +		return 0;
> +
> +	if (feed->pes_type >= 2)
> +		return 0;
> +
> +	if ((demux->pids[0] & 0x8000) || (demux->pids[1] & 0x8000))
> +		return 0;
> +
> +	dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
> +	dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
> +
> +	ret = av7110_av_start_play(av7110, RP_AV);
> +	if (!ret)
> +		demux->playing = 1;
> +
> +	return ret;
> +}
> +
>  static int av7110_start_feed(struct dvb_demux_feed *feed)
>  {
>  	struct dvb_demux *demux = feed->demux;
> @@ -951,16 +976,7 @@ static int av7110_start_feed(struct dvb_demux_feed *feed)
>  		    (feed->pes_type <= DMX_PES_PCR)) {
>  			switch (demux->dmx.frontend->source) {
>  			case DMX_MEMORY_FE:
> -				if (feed->ts_type & TS_DECODER)
> -					if (feed->pes_type < 2 &&
> -					    !(demux->pids[0] & 0x8000) &&
> -					    !(demux->pids[1] & 0x8000)) {
> -						dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
> -						dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
> -						ret = av7110_av_start_play(av7110, RP_AV);
> -						if (!ret)
> -							demux->playing = 1;
> -					}

If you rework this as follows:

				if (!(feed->ts_type & TS_DECODER))
					break;
				if (feed->pes_type >= 2)
					break;
				if ((demux->pids[0] & 0x8000) ||
				    (demux->pids[1] & 0x8000))
					break;
				dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
				dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
				ret = av7110_av_start_play(av7110, RP_AV);
				if (!ret)
					demux->playing = 1;

Does that fix the warning?

I prefer that over creating a new function. If this doesn't help,
then I can take this patch as-is.

Regards,

	Hans

> +				ret = handle_ts_memory_fe(feed);
>  				break;
>  			default:
>  				ret = dvb_feed_start_pid(feed);
> --
> 2.43.0
> 
>