Mesa (main): util/bitset: Fix off-by-one in __bitset_set_range
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Thu Mar 10 17:51:51 UTC 2022
Module: Mesa
Branch: main
Commit: 410e746198b498efdb9c37a63a0b8aad67469a4c
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=410e746198b498efdb9c37a63a0b8aad67469a4c
Author: Connor Abbott <cwabbott0 at gmail.com>
Date: Mon Jan 10 14:01:34 2022 +0100
util/bitset: Fix off-by-one in __bitset_set_range
Fixes: b3b03e33c9f ("util/bitset: add BITSET_SET_RANGE(..)")
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14107>
---
src/util/bitset.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/util/bitset.h b/src/util/bitset.h
index 279ad553e79..d8ec1af67ad 100644
--- a/src/util/bitset.h
+++ b/src/util/bitset.h
@@ -208,7 +208,7 @@ __bitset_shl(BITSET_WORD *x, unsigned amount, unsigned n)
static inline void
__bitset_set_range(BITSET_WORD *r, unsigned start, unsigned end)
{
- const unsigned size = end - start;
+ const unsigned size = end - start + 1;
const unsigned start_mod = start % BITSET_WORDBITS;
if (start_mod + size <= BITSET_WORDBITS) {
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