linux-kernel - Re: [PATCH] mmc: core: Directly use ida

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Date:   Fri, 27 May 2022 09:43:24 +0200
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     keliu <liuke94@...wei.com>, ulf.hansson@...aro.org,
        axboe@...nel.dk, Avri.Altman@....com, adrian.hunter@...el.com,
        shawn.lin@...k-chips.com, CLoehle@...erstone.com,
        swboyd@...omium.org, digetx@...il.com, bigeasy@...utronix.de,
        wsa+renesas@...g-engineering.com, yoshihiro.shimoda.uh@...esas.com,
        dev@...xeye.de, linux-mmc@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mmc: core: Directly use ida_free()

Le 27/05/2022 à 09:54, keliu a écrit :
> Use ida_free() instead of deprecated
> ida_simple_remove() .
> 
> Signed-off-by: keliu <liuke94@...wei.com>
> ---
>   drivers/mmc/core/block.c | 8 ++++----
>   drivers/mmc/core/host.c  | 2 +-
>   2 files changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
> index 506dc900f5c7..c8d702db483d 100644
> --- a/drivers/mmc/core/block.c
> +++ b/drivers/mmc/core/block.c
> @@ -204,7 +204,7 @@ static void mmc_blk_kref_release(struct kref *ref)
>   	int devidx;
>   
>   	devidx = mmc_get_devidx(md->disk);
> -	ida_simple_remove(&mmc_blk_ida, devidx);
> +	ida_free(&mmc_blk_ida, devidx);
>   
>   	mutex_lock(&open_lock);
>   	md->disk->private_data = NULL;
> @@ -2495,7 +2495,7 @@ static struct mmc_blk_data *mmc_blk_alloc_req(struct mmc_card *card,
>    err_kfree:
>   	kfree(md);
>    out:
> -	ida_simple_remove(&mmc_blk_ida, devidx);
> +	ida_free(&mmc_blk_ida, devidx);
>   	return ERR_PTR(ret);
>   }
>   
> @@ -2621,7 +2621,7 @@ static void mmc_blk_rpmb_device_release(struct device *dev)
>   {
>   	struct mmc_rpmb_data *rpmb = dev_get_drvdata(dev);
>   
> -	ida_simple_remove(&mmc_rpmb_ida, rpmb->id);
> +	ida_free(&mmc_rpmb_ida, rpmb->id);
>   	kfree(rpmb);
>   }
>   
> @@ -2643,7 +2643,7 @@ static int mmc_blk_alloc_rpmb_part(struct mmc_card *card,
>   
>   	rpmb = kzalloc(sizeof(*rpmb), GFP_KERNEL);
>   	if (!rpmb) {
> -		ida_simple_remove(&mmc_rpmb_ida, devidx);
> +		ida_free(&mmc_rpmb_ida, devidx);
>   		return -ENOMEM;
>   	}
>   
> diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c
> index 2ed2b4d5e5a5..9332e82e175a 100644
> --- a/drivers/mmc/core/host.c
> +++ b/drivers/mmc/core/host.c
> @@ -76,7 +76,7 @@ static void mmc_host_classdev_release(struct device *dev)
>   	struct mmc_host *host = cls_dev_to_mmc_host(dev);
>   	wakeup_source_unregister(host->ws);
>   	if (of_alias_get_id(host->parent->of_node, "mmc") < 0)
> -		ida_simple_remove(&mmc_host_ida, host->index);
> +		ida_free(&mmc_host_ida, host->index);
>   	kfree(host);
>   }
>   

Hi,

You missed ida_simple_get() that shoud become ida_alloc_max() here.

CJ