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selftests/bpf: Fix UBSan complaint about signed __int128 overflow
authorAndrii Nakryiko <andrii@kernel.org>
Wed, 24 Nov 2021 00:23:19 +0000 (16:23 -0800)
committerDaniel Borkmann <daniel@iogearbox.net>
Thu, 25 Nov 2021 23:15:03 +0000 (00:15 +0100)
commit486e648cb2f170702fc05f777c7b6b3d8ec662ce
tree9312bc4266d9c2fb51e405c8fa36eaff39c6e6e9tree | snapshot
parent593835377f24ca1bb98008ec1dc3baefe491ad6ecommit | diff
selftests/bpf: Fix UBSan complaint about signed __int128 overflow

Test is using __int128 variable as unsigned and highest order bit can be
set to 1 after bit shift. Use unsigned __int128 explicitly and prevent
UBSan from complaining.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211124002325.1737739-8-andrii@kernel.org
tools/testing/selftests/bpf/prog_tests/btf_dump.c diff | blob | history
Domain: System / Kernel;