From: Arnd Bergmann <[email protected]>
Depending on the value of CONFIG_HZ, clang compares 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 <[email protected]>
---
drivers/md/dm-integrity.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c
index 37b9f8f1ae1a..7f3dc8ee6ab8 100644
--- a/drivers/md/dm-integrity.c
+++ b/drivers/md/dm-integrity.c
@@ -4221,7 +4221,7 @@ static int dm_integrity_ctr(struct dm_target *ti,
unsigned int 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;
--
2.39.2
