linux-kernel - Re: [PATCH 1/2] blk-integrity: add rq_integrity_payload

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Date:   Wed, 12 Apr 2023 05:42:09 +0000
From:   Chaitanya Kulkarni <chaitanyak@...dia.com>
To:     "j-young.choi@...sung.com" <j-young.choi@...sung.com>,
        "kbusch@...nel.org" <kbusch@...nel.org>,
        "axboe@...com" <axboe@...com>, "hch@....de" <hch@....de>,
        "sagi@...mberg.me" <sagi@...mberg.me>,
        "chaitanya.kulkarni@....com" <chaitanya.kulkarni@....com>,
        "linux-nvme@...ts.infradead.org" <linux-nvme@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] blk-integrity: add rq_integrity_payload_size helper


>> +
>> +static inline unsigned int rq_integrity_payload_size(struct request 
>> *rq)
>> +{
>> +    if (WARN_ON_ONCE(queue_max_integrity_segments(rq->q) > 1))
>> +        return 0;
>> +    return rq->bio->bi_integrity->bip_iter.bi_size;
>> +}
>>   #else /* CONFIG_BLK_DEV_INTEGRITY */
>>   static inline int blk_rq_count_integrity_sg(struct request_queue *q,
>>                           struct bio *b)
>
> from the comments that I got in the past, you should only be adding
> a helper in the patch that is actually using it.
>
> -ck
>
>

disregard my comment, I think this is correct looking at the next patch...

-ck