This small patchset is about avoid verifier bug warning when conditional jumps on same register when the register holds a scalar with range.
v4: - make code better. (Alexei)
v3: https://lore.kernel.org/bpf/20251031154107.403054-1-kafai.wan@linux.dev/ - Enhance is_scalar_branch_taken() to handle scalar case. (Eduard) - Update the selftest to cover all conditional jump opcodes. (Eduard)
v2: https://lore.kernel.org/bpf/20251025053017.2308823-1-kafai.wan@linux.dev/ - Enhance is_branch_taken() and is_scalar_branch_taken() to handle branch direction computation for same register. (Eduard and Alexei) - Update the selftest.
v1: https://lore.kernel.org/bpf/20251022164457.1203756-1-kafai.wan@linux.dev/ --- KaFai Wan (2): bpf: Skip bounds adjustment for conditional jumps on same scalar register selftests/bpf: Add test for conditional jumps on same scalar register
kernel/bpf/verifier.c | 31 ++++ .../selftests/bpf/progs/verifier_bounds.c | 154 ++++++++++++++++++ 2 files changed, 185 insertions(+)