linux-kernel - Re: [PATCH v14 19/56] media: dvb-core: Do not initialize twice queue num

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Date:   Thu, 9 Nov 2023 11:14:41 +0100
From:   Benjamin Gaignard <benjamin.gaignard@...labora.com>
To:     Andrzej Pietrasiewicz <andrzej.p@...labora.com>,
        mchehab@...nel.org, tfiga@...omium.org, m.szyprowski@...sung.com,
        ming.qian@....com, ezequiel@...guardiasur.com.ar,
        p.zabel@...gutronix.de, gregkh@...uxfoundation.org,
        hverkuil-cisco@...all.nl, nicolas.dufresne@...labora.com
Cc:     linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-arm-msm@...r.kernel.org,
        linux-rockchip@...ts.infradead.org, linux-staging@...ts.linux.dev,
        kernel@...labora.com
Subject: Re: [PATCH v14 19/56] media: dvb-core: Do not initialize twice queue
 num_buffer field


Le 09/11/2023 à 10:50, Andrzej Pietrasiewicz a écrit :
> Hi Benjamin,
>
> W dniu 31.10.2023 o 17:30, Benjamin Gaignard pisze:
>> The above memset already zeroed all the ctx fields, it is useless
>> to do it here again.
>>
>> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...labora.com>
>> ---
>>   drivers/media/dvb-core/dvb_vb2.c | 1 -
>>   1 file changed, 1 deletion(-)
>>
>> diff --git a/drivers/media/dvb-core/dvb_vb2.c 
>> b/drivers/media/dvb-core/dvb_vb2.c
>> index 3a966fdf814c..a731b755a0b9 100644
>> --- a/drivers/media/dvb-core/dvb_vb2.c
>> +++ b/drivers/media/dvb-core/dvb_vb2.c
>> @@ -177,7 +177,6 @@ int dvb_vb2_init(struct dvb_vb2_ctx *ctx, const 
>> char *name, int nonblocking)
>>       q->ops = &dvb_vb2_qops;
>>       q->mem_ops = &vb2_vmalloc_memops;
>>       q->buf_ops = &dvb_vb2_buf_ops;
>> -    q->num_buffers = 0;
>
> A few lines above this one is this:
>
>     q->is_output = 0;
>
> Can this also be included in this (cleanup) patch?

Nice catch, I will add it.

Thanks,
Benjamin

>
> Regards,
>
> Andrzej
>
>>       ret = vb2_core_queue_init(q);
>>       if (ret) {
>>           ctx->state = DVB_VB2_STATE_NONE;
>
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