v5.0.x: opal_bitmap.c: fix logic error in length of array #13606
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Inspired by some fixes in PMIx: * From the @Matthew-Whitlock fix in openpmix/openpmix@47b6634 (openpmix/openpmix#3670) * From the @Matthew-Whitlock fix in openpmix/openpmix@08c22de (openpmix/openpmix#3709) * From the @Matthew-Whitlock fix in openpmix/openpmix@36df200 (openpmix/openpmix#3732) Fix some logic errors in opal_bitmap.c:opal_num_set_bits(): the parameter is supposed to be the number of bits, not number of elements. The fixes here are essentially the same as Matthew's, but with some stylistic changes. It doesn't look like this function is invoked anywhere in the code base, which is why we hadn't previously noticed these issues. That being said, if we have the code, it should be correct. This commit therefore also adds some tests for the opal_bitmap_num_set_bits() function to "make check" to make sure that it's actually working properly. Signed-off-by: Jeff Squyres <[email protected]> (cherry picked from commit 7bbdb0a)
bosilca
approved these changes
Jan 6, 2026
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This is a v5.0.x PR corresponding to main PR #13597.
Only one of the three commits on the main PR was relevant to the v5.0.x branch, so this PR only has a cherry pick of that one commit (7bbdb0a):
Inspired by some fixes in PMIx:
Fix some logic errors in opal_bitmap.c:opal_num_set_bits(): the parameter is supposed to be the number of bits, not number of elements. The fixes here are essentially the same as Matthew's, but with some stylistic changes.
It doesn't look like this function is invoked anywhere in the code base, which is why we hadn't previously noticed these issues.
That being said, if we have the code, it should be correct. This commit therefore also adds some tests for the
opal_bitmap_num_set_bits() function to "make check" to make sure that it's actually working properly.
(cherry picked from commit 7bbdb0a)