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| author | Avri Altman <avri.altman@wdc.com> | 2022-09-28 12:57:44 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2022-10-06 13:31:13 +0200 |
| commit | 07d2872bf4c864eb83d034263c155746a2fb7a3b (patch) | |
| tree | 863c65d136afe4b08c082e4beddeb82b1158684f /drivers/mmc/core/block.c | |
| parent | 833477fce7a14d43ae4c07f8ddc32fa5119471a2 (diff) | |
| download | linux-07d2872bf4c864eb83d034263c155746a2fb7a3b.tar.bz2 | |
mmc: core: Add SD card quirk for broken discard
Some SD-cards from Sandisk that are SDA-6.0 compliant reports they supports
discard, while they actually don't. This might cause mk2fs to fail while
trying to format the card and revert it to a read-only mode.
To fix this problem, let's add a card quirk (MMC_QUIRK_BROKEN_SD_DISCARD)
to indicate that we shall fall-back to use the legacy erase command
instead.
Signed-off-by: Avri Altman <avri.altman@wdc.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220928095744.16455-1-avri.altman@wdc.com
[Ulf: Updated the commit message]
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/core/block.c')
| -rw-r--r-- | drivers/mmc/core/block.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c index ce89611a136e..54cd009aee50 100644 --- a/drivers/mmc/core/block.c +++ b/drivers/mmc/core/block.c @@ -1140,8 +1140,12 @@ static void mmc_blk_issue_discard_rq(struct mmc_queue *mq, struct request *req) { struct mmc_blk_data *md = mq->blkdata; struct mmc_card *card = md->queue.card; + unsigned int arg = card->erase_arg; - mmc_blk_issue_erase_rq(mq, req, MMC_BLK_DISCARD, card->erase_arg); + if (mmc_card_broken_sd_discard(card)) + arg = SD_ERASE_ARG; + + mmc_blk_issue_erase_rq(mq, req, MMC_BLK_DISCARD, arg); } static void mmc_blk_issue_secdiscard_rq(struct mmc_queue *mq, |