niansa-misc/linux
1
0
Fork 0
mirror of synced 2025-03-06 20:59:54 +01:00
Code Issues Projects Releases Packages Wiki Activity

mmc: core: Enable erase/discard/trim support for all mmc hosts

Browse source 
Step by step, mmc host drivers and the mmc core have been improved in
regards to support erase/discard/trim operations. We have now reached a
point when it no longer seems reasonable to use an opt-in approach to
enable the functionality. Therefore, let's switch to make the operations
always supported.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20200508112853.23525-1-ulf.hansson@linaro.org
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Ulf Hansson 2020-05-08 13:28:53 +02:00
parent 04f2f45f41
commit 94fe2580a2
1 changed files with 2 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
drivers/mmc/core/core.c
View file

@ -1815,8 +1815,7 @@ int mmc_erase(struct mmc_card *card, unsigned int from, unsigned int nr,
unsigned int rem, to = from + nr; unsigned int rem, to = from + nr;
int err; int err;
if (!(card->host->caps & MMC_CAP_ERASE) || if (!(card->csd.cmdclass & CCC_ERASE))
!(card->csd.cmdclass & CCC_ERASE))
return -EOPNOTSUPP; return -EOPNOTSUPP;
if (!card->erase_size) if (!card->erase_size)
@ -1872,8 +1871,7 @@ EXPORT_SYMBOL(mmc_erase);
int mmc_can_erase(struct mmc_card *card) int mmc_can_erase(struct mmc_card *card)
{ {
if ((card->host->caps & MMC_CAP_ERASE) && if (card->csd.cmdclass & CCC_ERASE && card->erase_size)
(card->csd.cmdclass & CCC_ERASE) && card->erase_size)
return 1; return 1;
return 0; return 0;
} }