mmc: core: Add SD card quirk for broken discard
authorAvri Altman <avri.altman@wdc.com>
Wed, 28 Sep 2022 09:57:44 +0000 (12:57 +0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 29 Oct 2022 08:12:58 +0000 (10:12 +0200)
commitb9d8cbe90a0f27f2ec4f6f32e7faf86282eb4d7d
treeb4b90164ac5febc59ccdd0c2fe4ce292bc01548a
parent0ee2f0567a56298e442464efd84d1f649068106e
mmc: core: Add SD card quirk for broken discard

commit 07d2872bf4c864eb83d034263c155746a2fb7a3b upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/mmc/core/block.c
drivers/mmc/core/card.h
drivers/mmc/core/quirks.h
include/linux/mmc/card.h