Re: [PATCH] mmc: card: Don't show eMMC RPMB and BOOT areas in /proc/partitions

[Ulf Hansson]

On 27 February 2018 at 12:33, Harish Jenny K N
<harish_kandiga@xxxxxxxxxx> wrote:
> From: Andrew Gabbasov <andrew_gabbasov@xxxxxxxxxx>
>
> Since RPMB area is accessible via special ioctl only and boot areas
> are unlikely to contain any partitions, exclude them all from listing
> in /proc/partitions. This will hide them from various user-level
> software (e.g. fdisk), thus avoiding unnecessary access attempts.
>
> Signed-off-by: Andrew Gabbasov <andrew_gabbasov@xxxxxxxxxx>
> Signed-off-by: Harish Jenny K N <harish_kandiga@xxxxxxxxxx>

Queued up for 3.18, thanks!

Kind regards
Uffe

> ---
>  drivers/mmc/core/block.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
> index 20135a5..376e47e 100644
> --- a/drivers/mmc/core/block.c
> +++ b/drivers/mmc/core/block.c
> @@ -2341,7 +2341,8 @@ static struct mmc_blk_data *mmc_blk_alloc_req(struct mmc_card *card,
>         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))
> -               md->disk->flags |= GENHD_FL_NO_PART_SCAN;
> +               md->disk->flags |= GENHD_FL_NO_PART_SCAN
> +                                  | GENHD_FL_SUPPRESS_PARTITION_INFO;
>
>         /*
>          * As discussed on lkml, GENHD_FL_REMOVABLE should:
> --
> 1.9.1
>