linux-kernel - Re: [PATCH] mmc: queue: Match the data type of max

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Message-ID: <CAPDyKFpRLvsY79srmmi-2nS4ACR37QK+KqUmtvPL00raRG-dcg@mail.gmail.com>
Date:   Tue, 24 Aug 2021 16:56:55 +0200
From:   Ulf Hansson <ulf.hansson@...aro.org>
To:     Chanwoo Lee <cw9316.lee@...sung.com>
Cc:     Adrian Hunter <adrian.hunter@...el.com>, Coly Li <colyli@...e.de>,
        Jens Axboe <axboe@...nel.dk>,
        Eric Biggers <ebiggers@...gle.com>,
        Peter Collingbourne <pcc@...gle.com>,
        Luca Porzio <porzio@...il.com>,
        linux-mmc <linux-mmc@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        grant.jung@...sung.com, jt77.jang@...sung.com,
        DooHyun Hwang <dh0421.hwang@...sung.com>,
        Seunghui Lee <sh043.lee@...sung.com>
Subject: Re: [PATCH] mmc: queue: Match the data type of max_segments

On Tue, 24 Aug 2021 at 09:46, Chanwoo Lee <cw9316.lee@...sung.com> wrote:
>
> From: ChanWoo Lee <cw9316.lee@...sung.com>
>
> Each function has a different data type for max_segments,
> Modify to match unsigned short(host->max_segs).
> * unsigned short          max_segs;       /* see blk_queue_max_segments */
>
> 1) Return type : unsigned int
> static unsigned int mmc_get_max_segments(struct mmc_host *host)
> {
>        return host->can_dma_map_merge ? MMC_DMA_MAP_MERGE_SEGMENTS :
>                                          host->max_segs;
> }
>
> 2) Parameter type : int
>  mmc_alloc_sg(mmc_get_max_segments(host), gfp);
>    -> static struct scatterlist *mmc_alloc_sg(int sg_len, gfp_t gfp)
>
> 3) Parameter type : unsigned short
>  blk_queue_max_segments(mq->queue, mmc_get_max_segments(host));
>    -> void blk_queue_max_segments(struct request_queue *q,
>                                         unsigned short max_segments)
>
> Signed-off-by: ChanWoo Lee <cw9316.lee@...sung.com>

Applied for next, thanks!

Kind regards
Uffe


> ---
>  drivers/mmc/core/queue.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/mmc/core/queue.c b/drivers/mmc/core/queue.c
> index cc3261777637..48304bcf963c 100644
> --- a/drivers/mmc/core/queue.c
> +++ b/drivers/mmc/core/queue.c
> @@ -163,7 +163,7 @@ static void mmc_mq_recovery_handler(struct work_struct *work)
>         blk_mq_run_hw_queues(q, true);
>  }
>
> -static struct scatterlist *mmc_alloc_sg(int sg_len, gfp_t gfp)
> +static struct scatterlist *mmc_alloc_sg(unsigned short sg_len, gfp_t gfp)
>  {
>         struct scatterlist *sg;
>
> @@ -193,7 +193,7 @@ static void mmc_queue_setup_discard(struct request_queue *q,
>                 blk_queue_flag_set(QUEUE_FLAG_SECERASE, q);
>  }
>
> -static unsigned int mmc_get_max_segments(struct mmc_host *host)
> +static unsigned short mmc_get_max_segments(struct mmc_host *host)
>  {
>         return host->can_dma_map_merge ? MMC_DMA_MAP_MERGE_SEGMENTS :
>                                          host->max_segs;
> --
> 2.29.0
>