Hi all, On Tue, 26 Jan 2021 07:59:51 +0100 Christian Borntraeger wrote: > > On 21.01.21 15:39, Sven Schnelle wrote: > > Commit 845f44e8ef28 ("sched: Report local wake up on resched blind zone > > within idle loop") from next-20210121 causes a warning because s390 > > doesn't call sched_resched_local_allow() when restarting a syscall. > > > > Signed-off-by: Sven Schnelle > > --- > > arch/s390/kernel/syscall.c | 1 + > > 1 file changed, 1 insertion(+) > > > > diff --git a/arch/s390/kernel/syscall.c b/arch/s390/kernel/syscall.c > > index bc8e650e377d..2b39ac40f970 100644 > > --- a/arch/s390/kernel/syscall.c > > +++ b/arch/s390/kernel/syscall.c > > @@ -162,6 +162,7 @@ void noinstr __do_syscall(struct pt_regs *regs, int per_trap) > > do_syscall(regs); > > if (!test_pt_regs_flag(regs, PIF_SYSCALL_RESTART)) > > break; > > + sched_resched_local_allow(); > > local_irq_enable(); > > } > > exit_to_user_mode(); > > Yesterdays next now fails with > > > arch/s390/kernel/syscall.c: In function '__do_syscall': > arch/s390/kernel/syscall.c:165:3: error: implicit declaration of function 'sched_resched_local_allow' [-Werror=implicit-function-declaration] > 165 | sched_resched_local_allow(); > | ^~~~~~~~~~~~~~~~~~~~~~~~~ > cc1: some warnings being treated as errors > make[2]: *** [scripts/Makefile.build:288: arch/s390/kernel/syscall.o] Error 1 > make[2]: *** Waiting for unfinished jobs.... > make[1]: *** [scripts/Makefile.build:530: arch/s390/kernel] Error 2 > make[1]: *** Waiting for unfinished jobs.... I have now removed the merge fix up for tomorrow. It seems that the commits that needed it have been removed :-( -- Cheers, Stephen Rothwell