Hi all,
On Fri, 10 Feb 2023 12:00:21 +1100 Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
>
> Today's linux-next merge of the tip tree got a conflict in:
>
> arch/s390/kernel/idle.c
>
> between commit:
>
> c01016299dc7 ("s390/idle: move idle time accounting to account_idle_time_irq()")
>
> from the s390 tree and commit:
>
> 89b3098703bd ("arch/idle: Change arch_cpu_idle() behavior: always exit with IRQs disabled")
>
> from the tip tree.
>
> I fixed it up (see below) and can carry the fix as necessary. This
> is now fixed as far as linux-next is concerned, but any non trivial
> conflicts should be mentioned to your upstream maintainer when your tree
> is submitted for merging. You may also want to consider cooperating
> with the maintainer of the conflicting tree to minimise any particularly
> complex conflicts.
>
> diff --cc arch/s390/kernel/idle.c
> index dd8351e76539,b04fb418307c..000000000000
> --- a/arch/s390/kernel/idle.c
> +++ b/arch/s390/kernel/idle.c
> @@@ -61,7 -57,15 +61,6 @@@ void noinstr arch_cpu_idle(void
>
> /* psw_idle() returns with interrupts disabled. */
> psw_idle(idle, psw_mask);
> - raw_local_irq_enable();
> -
> - /* Account time spent with enabled wait psw loaded as idle time. */
> - raw_write_seqcount_begin(&idle->seqcount);
> - idle_time = idle->clock_idle_exit - idle->clock_idle_enter;
> - idle->clock_idle_enter = idle->clock_idle_exit = 0ULL;
> - idle->idle_time += idle_time;
> - idle->idle_count++;
> - account_idle_time(cputime_to_nsecs(idle_time));
> - raw_write_seqcount_end(&idle->seqcount);
> }
>
> static ssize_t show_idle_count(struct device *dev,
This is now a conflict between the s390 tree and Linus' tree.
--
Cheers,
Stephen Rothwell
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