On 10/27/21 5:56 AM, Pavel Begunkov wrote: > On 10/25/21 15:59, Qian Cai wrote: >> fs/io_uring.c: In function '__io_submit_flush_completions': >> fs/io_uring.c:2367:33: warning: variable 'prev' set but not used >> [-Wunused-but-set-variable] >> 2367 | struct io_wq_work_node *node, *prev; >> | ^~~~ >> >> Fixed it by open-coded the wq_list_for_each() without an unused previous >> node pointer. > > That's intentional, the var is optimised out and it's better to > not hand code it (if possible). Yes, this is pretty minor. Not going to insist if people don't like for some reasons.