> Add a function mmc_detect_card_removed() which upper layers
> can use to determine immediately if a card has been removed.
> This function should be called after an I/O request fails so
> that all queued I/O requests can be errored out immediately
> instead of waiting for the card device to be removed.
>
> Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
> ---
> drivers/mmc/core/core.c | 51
> +++++++++++++++++++++++++++++++++++++++++++--
> drivers/mmc/core/core.h | 3 ++
> drivers/mmc/core/mmc.c | 12 ++++++++++-
> drivers/mmc/core/sd.c | 12 ++++++++++-
> drivers/mmc/core/sdio.c | 11 +++++++++-
> include/linux/mmc/card.h | 3 ++
> include/linux/mmc/core.h | 2 +
> include/linux/mmc/host.h | 1 +
> 8 files changed, 89 insertions(+), 6 deletions(-)
>
...
> +int _mmc_detect_card_removed(struct mmc_host *host)
> +{
> + int ret;
> +
> + if (!(host->caps & MMC_CAP_NONREMOVABLE) || !host->bus_ops->alive)
This should be just "if ((host->caps & MMC_CAP_NONREMOVABLE) || ...)"
Otherwise, Acked-by: Sujit Reddy Thumma <sthumma@xxxxxxxxxxxxxx>
> + return 0;
> +
> + if (!host->card || mmc_card_removed(host->card))
> + return 1;
> +
> + ret = host->bus_ops->alive(host);
> + if (ret) {
> + mmc_card_set_removed(host->card);
> + pr_info("%s: card removed\n", mmc_hostname(host));
> + }
> +
> + return ret;
> +}
> +
--
Thanks
Sujit
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