On Fri, Jun 23, 2017 at 09:44:58AM +0930, Jonathan Woithe wrote: > On Thu, Jun 22, 2017 at 04:58:09PM -0700, Darren Hart wrote: > > On Thu, Jun 22, 2017 at 10:46:19PM +0200, Micha?? K??pie?? wrote: > > > > The events seen by userspace with the original code would be "A-press", > > > > "B-press", "A-release", "B-release". With the revised code the order of the > > > > release events would be reversed compared to the previous behaviour. That > > > > is, unless I've misunderstood how sparse_keymap_report_event() works. > > > > > > All you wrote above is correct and this patch does change the order of > > > release events sent to userspace when multiple hotkeys are pressed > > > simultaneously. The question is: is it relevant for any practical > > > scenario? > > > > > > Anyway, I find this matter to be of secondary importance. The primary > > > objective of this patch is to get rid of the kfifo. If anyone has > > > strong feelings about the change in event ordering, I will be happy to > > > revert to FIFO in v2. > > > > This all looks reasonable to me, I don't see anything requiring a respin. > > I agree it is of seconary importance. To me, using LIFO release order is > counter-intuitive, but it's the sort of question that if put to 100 people > you'll get a 50/50 split of opinions. > > Especially since the whole "multiple buttons held at once" scenario is > rather unusual we can go with switching the order if others don't see a > problem with the behavioural change. Yes. If anyone notices the implementation difference, I'll be rather surprised. If they do, we can convert back to FIFO as you say. -- Darren Hart VMware Open Source Technology Center -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
