linux-kernel - Re: [PATCH] mmc: core: propagate removable attribute to driver core

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Date:   Mon, 7 Aug 2023 17:51:17 +0200
From:   Ulf Hansson <ulf.hansson@...aro.org>
To:     Thomas Weißschuh <linux@...ssschuh.net>
Cc:     linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Christoph Hellwig <hch@....de>
Subject: Re: [PATCH] mmc: core: propagate removable attribute to driver core

On Tue, 25 Jul 2023 at 16:17, Thomas Weißschuh <linux@...ssschuh.net> wrote:
>
> Userspace can use this to distinguish hotpluggable mmc devices such as
> sdcards from non-hotpluggable ones such as eMMC.
> One example is the lsblk tool from util-linux.
>
> Note that dev_set_removable() is not related to GENHD_FL_REMOVABLE which
> is not applicable as per the comment in drivers/mmc/core/block.c
>
> Link: https://github.com/util-linux/util-linux/issues/2379
> Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>

Applied for next, thanks!

Kind regards
Uffe


> ---
>  drivers/mmc/core/bus.c | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c
> index 2c3074a605fc..0af96548e7da 100644
> --- a/drivers/mmc/core/bus.c
> +++ b/drivers/mmc/core/bus.c
> @@ -310,6 +310,9 @@ int mmc_add_card(struct mmc_card *card)
>
>
>         dev_set_name(&card->dev, "%s:%04x", mmc_hostname(card->host), card->rca);
> +       dev_set_removable(&card->dev,
> +                         mmc_card_is_removable(card->host) ?
> +                         DEVICE_REMOVABLE : DEVICE_FIXED);
>
>         switch (card->type) {
>         case MMC_TYPE_MMC:
>
> ---
> base-commit: 0b5547c51827e053cc754db47d3ec3e6c2c451d2
> change-id: 20230725-mmc-removable-5cfdca9ed062
>
> Best regards,
> --
> Thomas Weißschuh <linux@...ssschuh.net>
>