On Sun, Dec 01, 2019 at 08:53:31AM +0800, kbuild test robot wrote:
FYI, the error/warning still remains.
commit: 5a74ac4c4a97bd8b7dba054304d598e2a882fea6 idr: Fix idr_get_next_ul race with
date: 4 weeks ago
config: arc-defconfig (attached as .config)
compiler: arc-elf-gcc (GCC) 7.4.0
Still don't care. You need to drop this broken compiler from your test cases.