[lvc-project] [PATCH 1/1] dm-integrity: Remove unreachable code in dm_integrity_ctr()
Ivan Abramov
i.abramov at mt-integration.ru
Mon Sep 8 15:08:31 MSK 2025
Since bi->metadata_size is an unsigned char, it's not practically
possible for it to be > PAGE_SIZE / 2.
Thus, remove the corresponding if statement.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Signed-off-by: Ivan Abramov <i.abramov at mt-integration.ru>
---
drivers/md/dm-integrity.c | 5 -----
1 file changed, 5 deletions(-)
diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c
index efeee0a873c0..b7ad7a5adb56 100644
--- a/drivers/md/dm-integrity.c
+++ b/drivers/md/dm-integrity.c
@@ -4752,11 +4752,6 @@ static int dm_integrity_ctr(struct dm_target *ti, unsigned int argc, char **argv
ti->error = "The integrity profile is smaller than tag size";
goto bad;
}
- if ((unsigned long)bi->metadata_size > PAGE_SIZE / 2) {
- r = -EINVAL;
- ti->error = "Too big tuple size";
- goto bad;
- }
ic->tuple_size = bi->metadata_size;
if (1 << bi->interval_exp != ic->sectors_per_block << SECTOR_SHIFT) {
r = -EINVAL;
--
2.39.5
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