[PATCH 1/2] mmc: fix error message for unaligned erase request

Patrick Delaunay
2022-02-15T15:23:40Z

Fix the end address in the message for unaligned erase request in
mmc_berase() when start + blkcnt is aligned to erase_grp_size.

for example:
- start = 0x2000 - 26
- count = 26
- erase_grp_size = 0x400

Caution! Your devices Erase group is 0x400
The erase range would be change to 0x2000~0x27ff

But no issue when the end address is not aligned, for example
- start = 0x2000 - 2 * 26
- count = 26
- erase_grp_size = 0x400

Caution! Your devices Erase group is 0x400
The erase range would be change to 0x2000~0x23ff

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
---

drivers/mmc/mmc_write.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mmc/mmc_write.c b/drivers/mmc/mmc_write.c
index d23b7d9729..eab94c7b60 100644
--- a/drivers/mmc/mmc_write.c
+++ b/drivers/mmc/mmc_write.c
@@ -102,7 +102,7 @@ ulong mmc_berase(struct blk_desc *block_dev, lbaint_t start, lbaint_t blkcnt)
"The erase range would be change to "
"0x" LBAF "~0x" LBAF "\n\n",
mmc->erase_grp_size, start & ~(mmc->erase_grp_size - 1),
- ((start + blkcnt + mmc->erase_grp_size)
+ ((start + blkcnt + mmc->erase_grp_size - 1)
& ~(mmc->erase_grp_size - 1)) - 1);

while (blk < blkcnt) {
--
2.25.1