diff options
| author | Dominique Martinet <dominique.martinet@atmark-techno.com> | 2024-03-06 04:44:38 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-04-03 16:19:32 +0300 |
| commit | ad8a4eb663521323f1a57a72c4a63ffabe24e1ac (patch) | |
| tree | 6af54bd3b313be85a1fccef728ae77cd3ef4c402 /drivers/mmc | |
| parent | 1ede7f1d7eed1738d1b9333fd1e152ccb450b86a (diff) | |
| download | linux-ad8a4eb663521323f1a57a72c4a63ffabe24e1ac.tar.xz | |
mmc: core: Fix switch on gp3 partition
[ Upstream commit 4af59a8df5ea930038cd3355e822f5eedf4accc1 ]
Commit e7794c14fd73 ("mmc: rpmb: fixes pause retune on all RPMB
partitions.") added a mask check for 'part_type', but the mask used was
wrong leading to the code intended for rpmb also being executed for GP3.
On some MMCs (but not all) this would make gp3 partition inaccessible:
armadillo:~# head -c 1 < /dev/mmcblk2gp3
head: standard input: I/O error
armadillo:~# dmesg -c
[ 422.976583] mmc2: running CQE recovery
[ 423.058182] mmc2: running CQE recovery
[ 423.137607] mmc2: running CQE recovery
[ 423.137802] blk_update_request: I/O error, dev mmcblk2gp3, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 4 prio class 0
[ 423.237125] mmc2: running CQE recovery
[ 423.318206] mmc2: running CQE recovery
[ 423.397680] mmc2: running CQE recovery
[ 423.397837] blk_update_request: I/O error, dev mmcblk2gp3, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
[ 423.408287] Buffer I/O error on dev mmcblk2gp3, logical block 0, async page read
the part_type values of interest here are defined as follow:
main 0
boot0 1
boot1 2
rpmb 3
gp0 4
gp1 5
gp2 6
gp3 7
so mask with EXT_CSD_PART_CONFIG_ACC_MASK (7) to correctly identify rpmb
Fixes: e7794c14fd73 ("mmc: rpmb: fixes pause retune on all RPMB partitions.")
Cc: stable@vger.kernel.org
Cc: Jorge Ramirez-Ortiz <jorge@foundries.io>
Signed-off-by: Dominique Martinet <dominique.martinet@atmark-techno.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240306-mmc-partswitch-v1-1-bf116985d950@codewreck.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/core/block.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c index ea60efaecb0d..4688a658d6a6 100644 --- a/drivers/mmc/core/block.c +++ b/drivers/mmc/core/block.c @@ -889,10 +889,11 @@ static const struct block_device_operations mmc_bdops = { static int mmc_blk_part_switch_pre(struct mmc_card *card, unsigned int part_type) { - const unsigned int mask = EXT_CSD_PART_CONFIG_ACC_RPMB; + const unsigned int mask = EXT_CSD_PART_CONFIG_ACC_MASK; + const unsigned int rpmb = EXT_CSD_PART_CONFIG_ACC_RPMB; int ret = 0; - if ((part_type & mask) == mask) { + if ((part_type & mask) == rpmb) { if (card->ext_csd.cmdq_en) { ret = mmc_cmdq_disable(card); if (ret) @@ -907,10 +908,11 @@ static int mmc_blk_part_switch_pre(struct mmc_card *card, static int mmc_blk_part_switch_post(struct mmc_card *card, unsigned int part_type) { - const unsigned int mask = EXT_CSD_PART_CONFIG_ACC_RPMB; + const unsigned int mask = EXT_CSD_PART_CONFIG_ACC_MASK; + const unsigned int rpmb = EXT_CSD_PART_CONFIG_ACC_RPMB; int ret = 0; - if ((part_type & mask) == mask) { + if ((part_type & mask) == rpmb) { mmc_retune_unpause(card->host); if (card->reenable_cmdq && !card->ext_csd.cmdq_en) ret = mmc_cmdq_enable(card); |