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util/bitset: Fix off-by-one in __bitset_set_range

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Fixes: b3b03e33c9 ("util/bitset: add BITSET_SET_RANGE(..)")
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14107>
(cherry picked from commit 410e746198)
This commit is contained in:
Connor Abbott 2022-01-10 14:01:34 +01:00 • committed by Dylan Baker
parent 4656dbee08
commit c2541d65c8
2 changed files with 2 additions and 2 deletions
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2
.pick_status.json
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@ -832,7 +832,7 @@
"description": "util/bitset: Fix off-by-one in __bitset_set_range",
"nominated": true,
"nomination_type": 1,
"resolution": 0,
"resolution": 1,
"main_sha": null,
"because_sha": "b3b03e33c9f11adb0c4d84311a651ea6016a0885"
},

2
src/util/bitset.h
View file

@ -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) {