diff options
| author | Christian Löhle <CLoehle@hyperstone.com> | 2022-11-17 17:42:09 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-12-08 13:23:57 +0300 |
| commit | 46ee041cd655edfb43bb9c867fdb9e2151c2f52c (patch) | |
| tree | 19e252a70634416a50fe157c93cb95e64e6d295b /drivers/mmc | |
| parent | b79be962b567e857470b454d564baea5014ee94b (diff) | |
| download | linux-46ee041cd655edfb43bb9c867fdb9e2151c2f52c.tar.xz | |
mmc: core: Fix ambiguous TRIM and DISCARD arg
commit 489d144563f23911262a652234b80c70c89c978b upstream.
Clean up the MMC_TRIM_ARGS define that became ambiguous with DISCARD
introduction. While at it, let's fix one usage where MMC_TRIM_ARGS falsely
included DISCARD too.
Fixes: b3bf915308ca ("mmc: core: new discard feature support at eMMC v4.5")
Signed-off-by: Christian Loehle <cloehle@hyperstone.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/11376b5714964345908f3990f17e0701@hyperstone.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/core/core.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 7d9ec91e081b..8f2465394253 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -1539,6 +1539,11 @@ void mmc_init_erase(struct mmc_card *card) card->pref_erase = 0; } +static bool is_trim_arg(unsigned int arg) +{ + return (arg & MMC_TRIM_OR_DISCARD_ARGS) && arg != MMC_DISCARD_ARG; +} + static unsigned int mmc_mmc_erase_timeout(struct mmc_card *card, unsigned int arg, unsigned int qty) { @@ -1837,7 +1842,7 @@ int mmc_erase(struct mmc_card *card, unsigned int from, unsigned int nr, !(card->ext_csd.sec_feature_support & EXT_CSD_SEC_ER_EN)) return -EOPNOTSUPP; - if (mmc_card_mmc(card) && (arg & MMC_TRIM_ARGS) && + if (mmc_card_mmc(card) && is_trim_arg(arg) && !(card->ext_csd.sec_feature_support & EXT_CSD_SEC_GB_CL_EN)) return -EOPNOTSUPP; @@ -1867,7 +1872,7 @@ int mmc_erase(struct mmc_card *card, unsigned int from, unsigned int nr, * identified by the card->eg_boundary flag. */ rem = card->erase_size - (from % card->erase_size); - if ((arg & MMC_TRIM_ARGS) && (card->eg_boundary) && (nr > rem)) { + if ((arg & MMC_TRIM_OR_DISCARD_ARGS) && card->eg_boundary && nr > rem) { err = mmc_do_erase(card, from, from + rem - 1, arg); from += rem; if ((err) || (to <= from)) |