linux-kernel - Re: [PATCH v5 2/5] mmc: move 'parent' tracking to mmc_blk

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Date:	Tue, 12 Jul 2016 15:51:32 +0200
From:	Ulf Hansson <ulf.hansson@...aro.org>
To:	Dan Williams <dan.j.williams@...el.com>
Cc:	Jens Axboe <axboe@...com>, linux-nvdimm@...ts.01.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	linux-block@...r.kernel.org,
	Bart Van Assche <bart.vanassche@...disk.com>,
	Christoph Hellwig <hch@....de>
Subject: Re: [PATCH v5 2/5] mmc: move 'parent' tracking to mmc_blk_data

On 27 June 2016 at 21:30, Dan Williams <dan.j.williams@...el.com> wrote:
> In preparation for the removal of 'driverfs_dev' from 'struct gendisk',
> carry this data in mmc_blk_data. It is used for registration of parent
> disks and partitions.
>
> Cc: Ulf Hansson <ulf.hansson@...aro.org>
> Cc: Bart Van Assche <bart.vanassche@...disk.com>
> Signed-off-by: Dan Williams <dan.j.williams@...el.com>

If not too late (sorry for the delay):

Acked-by: Ulf Hansson <ulf.hansson@...aro.org>

Kind regards
Uffe

> ---
>  drivers/mmc/card/block.c |    5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
> index 383184743f9a..d1733424bf6e 100644
> --- a/drivers/mmc/card/block.c
> +++ b/drivers/mmc/card/block.c
> @@ -93,6 +93,7 @@ static DEFINE_SPINLOCK(mmc_blk_lock);
>   */
>  struct mmc_blk_data {
>         spinlock_t      lock;
> +       struct device   *parent;
>         struct gendisk  *disk;
>         struct mmc_queue queue;
>         struct list_head part;
> @@ -2270,7 +2271,7 @@ again:
>         md->disk->fops = &mmc_bdops;
>         md->disk->private_data = md;
>         md->disk->queue = md->queue.queue;
> -       md->disk->driverfs_dev = parent;
> +       md->parent = parent;
>         set_disk_ro(md->disk, md->read_only || default_ro);
>         md->disk->flags = GENHD_FL_EXT_DEVT;
>         if (area_type & (MMC_BLK_DATA_AREA_RPMB | MMC_BLK_DATA_AREA_BOOT))
> @@ -2458,7 +2459,7 @@ static int mmc_add_disk(struct mmc_blk_data *md)
>         int ret;
>         struct mmc_card *card = md->queue.card;
>
> -       add_disk(md->disk);
> +       device_add_disk(md->parent, md->disk);
>         md->force_ro.show = force_ro_show;
>         md->force_ro.store = force_ro_store;
>         sysfs_attr_init(&md->force_ro.attr);
>