toolchain: LLVM 11.0.0
config: defconfig + fuzzing.config + kcsan.config
==================================================================
BUG: KCSAN: data-race in start_dir_add+0x34/0xd4

race at unknown origin, with read to 0xffff533c80c08580 of 4 bytes by task 2001 on cpu 177:
 start_dir_add+0x34/0xd4
 __d_add+0x188/0x1b0
 d_add+0x54/0x64
 simple_lookup+0x90/0xa4
 path_openat+0x948/0x190c
 do_filp_open+0x80/0x114
 do_sys_openat2+0xc8/0x170
 __arm64_sys_openat+0xe0/0x110
 invoke_syscall+0x74/0x1b0
 el0_svc_common+0x1a4/0x1d4
 do_el0_svc+0x4c/0xc8
 el0_svc+0x78/0x238
 el0t_64_sync_handler+0x68/0xac
 el0t_64_sync+0x180/0x184

value changed: 0x00001585 -> 0x00001586

Reported by Kernel Concurrency Sanitizer on:
CPU: 177 PID: 2001 Comm: udevadm Not tainted 5.16.0-rc4-00002-g5854738642b4 #1
Hardware name: linux,dummy-virt (DT)
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