Warnings before patch: files: ['arch/riscv/net/bpf_jit_comp64.c', 'kernel/bpf/verifier.c', 'net/bpf/test_run.c', 'tools/testing/selftests/bpf/prog_tests/xdp_context_test_run.c'] Warning: net/bpf/test_run.c:869 No description found for return value of 'range_is_zero' Warning: net/bpf/test_run.c:869 No description found for return value of 'range_is_zero' Current warnings: files: ['arch/riscv/net/bpf_jit_comp64.c', 'kernel/bpf/verifier.c', 'net/bpf/test_run.c', 'tools/testing/selftests/bpf/prog_tests/xdp_context_test_run.c'] Warning: net/bpf/test_run.c:869 No description found for return value of 'range_is_zero' Warning: net/bpf/test_run.c:869 No description found for return value of 'range_is_zero' Warnings before: 2 after: 2