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    SubjectRe: [PATCH] mmc: card: Don't show eMMC RPMB and BOOT areas in /proc/partitions
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    在 2018/2/27 19:33, Harish Jenny K N 写道:
    > From: Andrew Gabbasov <andrew_gabbasov@mentor.com>
    >
    > 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@mentor.com>
    > Signed-off-by: Harish Jenny K N <harish_kandiga@mentor.com>
    > ---
    > 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;

    I would prefer using GENHD_FL_HIDDEN instead of adding all these two
    flags.

    >
    > /*
    > * As discussed on lkml, GENHD_FL_REMOVABLE should:
    >


    --
    Best Regards
    Shawn Lin

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