Messages in this thread | | | Date | Mon, 2 May 2022 18:15:12 +1000 | From | Stephen Rothwell <> | Subject | linux-next: build failure after merge of the bitmap tree |
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Hi all,
After merging the bitmap tree, today's linux-next build (native perf) failed like this:
../lib/bitmap.c:21:5: error: conflicting types for '__bitmap_weight_cmp'; have 'int(const long unsigned int *, unsigned int, int)' 21 | int __bitmap_weight_cmp(const unsigned long *bitmap, unsigned int bits, int num) | ^~~~~~~~~~~~~~~~~~~ In file included from ../lib/bitmap.c:6: tools/include/linux/bitmap.h:15:5: note: previous declaration of '__bitmap_weight_cmp' with type 'int(const long unsigned int *, unsigned int, unsigned int)' 15 | int __bitmap_weight_cmp(const unsigned long *bitmap, unsigned int bits, | ^~~~~~~~~~~~~~~~~~~ ../lib/bitmap.c: In function '__bitmap_weight_cmp': ../lib/bitmap.c:26:50: error: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Werror=sign-compare] 26 | if (w + bits - k * BITS_PER_LONG < num) | ^ ../lib/bitmap.c:31:23: error: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Werror=sign-compare] 31 | if (w > num) | ^ cc1: all warnings being treated as errors tools/perf/../lib/bitmap.c:21:5: error: conflicting types for '__bitmap_weight_cmp'; have 'int(const long unsigned int *, unsigned int, int)' 21 | int __bitmap_weight_cmp(const unsigned long *bitmap, unsigned int bits, int num) | ^~~~~~~~~~~~~~~~~~~ In file included from tools/perf/../lib/bitmap.c:6: tools/include/linux/bitmap.h:15:5: note: previous declaration of '__bitmap_weight_cmp' with type 'int(const long unsigned int *, unsigned int, unsigned int)' 15 | int __bitmap_weight_cmp(const unsigned long *bitmap, unsigned int bits, | ^~~~~~~~~~~~~~~~~~~ tools/perf/../lib/bitmap.c: In function '__bitmap_weight_cmp': tools/perf/../lib/bitmap.c:26:50: error: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Werror=sign-compare] 26 | if (w + bits - k * BITS_PER_LONG < num) | ^ tools/perf/../lib/bitmap.c:31:23: error: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Werror=sign-compare] 31 | if (w > num) | ^ cc1: all warnings being treated as errors
Probably caused by commit
4252f3915e02 ("tools: bitmap: sync bitmap_weight")
I have used the bitmap tree from next-20220429 for today.
-- Cheers, Stephen Rothwell [unhandled content-type:application/pgp-signature] | |