Hello I found below compiling error[2] on latest linux-block/for-next[1], pls check it. [1] b8b914c06a6f (HEAD, origin/for-next) Merge branch 'for-5.20/drivers-post' into for-next [2] In file included from ./include/linux/export.h:33, from ./include/linux/linkage.h:7, from ./include/linux/kernel.h:17, from io_uring/notif.c:1: io_uring/notif.c: In function ‘io_alloc_notif’: io_uring/notif.c:52:23: error: implicit declaration of function ‘io_alloc_req_refill’; did you mean ‘io_rsrc_refs_refill’? [-Werror=implicit-function-declaration] 52 | if (unlikely(!io_alloc_req_refill(ctx))) | ^~~~~~~~~~~~~~~~~~~ ./include/linux/compiler.h:78:45: note: in definition of macro ‘unlikely’ 78 | # define unlikely(x) __builtin_expect(!!(x), 0) | ^ CC kernel/trace/trace_seq.o CC drivers/mfd/stmpe.o io_uring/notif.c:54:17: error: implicit declaration of function ‘io_alloc_req’; did you mean ‘xa_alloc_irq’? [-Werror=implicit-function-declaration] 54 | notif = io_alloc_req(ctx); | ^~~~~~~~~~~~ | xa_alloc_irq io_uring/notif.c:54:15: warning: assignment to ‘struct io_kiocb *’ from ‘int’ makes pointer from integer without a cast [-Wint-conversion] 54 | notif = io_alloc_req(ctx); | ^ -- Best Regards, Yi Zhang