This is a note to let you know that I've just added the patch titled
dm integrity: fix out-of-range warning
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
dm-integrity-fix-out-of-range-warning.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 844b1a6b9ff4715b1e3c51196f59620d3d9d3919
Author: Arnd Bergmann <arnd@xxxxxxxx>
Date: Thu Mar 28 15:30:39 2024 +0100
dm integrity: fix out-of-range warning
[ Upstream commit 8e91c2342351e0f5ef6c0a704384a7f6fc70c3b2 ]
Depending on the value of CONFIG_HZ, clang complains about a pointless
comparison:
drivers/md/dm-integrity.c:4085:12: error: result of comparison of
constant 42949672950 with expression of type
'unsigned int' is always false
[-Werror,-Wtautological-constant-out-of-range-compare]
if (val >= (uint64_t)UINT_MAX * 1000 / HZ) {
As the check remains useful for other configurations, shut up the
warning by adding a second type cast to uint64_t.
Fixes: 468dfca38b1a ("dm integrity: add a bitmap mode")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Reviewed-by: Mikulas Patocka <mpatocka@xxxxxxxxxx>
Reviewed-by: Justin Stitt <justinstitt@xxxxxxxxxx>
Signed-off-by: Mike Snitzer <snitzer@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c
index df743650d8a9d..ae372bc44fbfc 100644
--- a/drivers/md/dm-integrity.c
+++ b/drivers/md/dm-integrity.c
@@ -4083,7 +4083,7 @@ static int dm_integrity_ctr(struct dm_target *ti, unsigned argc, char **argv)
} else if (sscanf(opt_string, "sectors_per_bit:%llu%c", &llval, &dummy) == 1) {
log2_sectors_per_bitmap_bit = !llval ? 0 : __ilog2_u64(llval);
} else if (sscanf(opt_string, "bitmap_flush_interval:%u%c", &val, &dummy) == 1) {
- if (val >= (uint64_t)UINT_MAX * 1000 / HZ) {
+ if ((uint64_t)val >= (uint64_t)UINT_MAX * 1000 / HZ) {
r = -EINVAL;
ti->error = "Invalid bitmap_flush_interval argument";
goto bad;
