+Cc Miguel Ojeda
> > > +({
> > > \
> > > + struct efi_runtime_work efi_rts_work; \
> > > + \
> > > + INIT_WORK_ONSTACK(&efi_rts_work.work, efi_call_rts); \
> > > + efi_rts_work.func = _rts; \
> > > + efi_rts_work.arg1 = _arg1; \
> > > + efi_rts_work.arg2 = _arg2; \
> > > + efi_rts_work.arg3 = _arg3; \
> > > + efi_rts_work.arg4 = _arg4; \
> > > + efi_rts_work.arg5 = _arg5; \
> > > + /* \
> > > + * queue_work() returns 0 if work was already on queue, \
> > > + * _ideally_ this should never happen. \
> > > + */ \
> > > + if (queue_work(efi_rts_wq, &efi_rts_work.work))
> > \
> > > + flush_work(&efi_rts_work.work);
> > \
> > > + else \
> > > + BUG(); \
> >
> > So failure to queue that work is such a critical problem that we need
> > to BUG() and can't possibly continue and shoult not attempt recovery at all?
> >
>
> I think it's not critical, we can just return error status.
> I think the problem in itself is not at all critical but when I initially
> thought about
> why the problem could have occurred, it sounded like one i.e. ideally (if the
> system is running fine) we should always be able to queue work. Failure to
> queue
> means that the previous work is already on queue and that shouldn't be the
> case.
> So, thought, maybe something bad had happened already (just doubtful).
>
> But, I see your point. BUG() sounds more like an over kill. Instead of fixing
> an
> existing problem, this patch could completely take down the system.
>
> > IOW, we should always strive to fail gracefully and not shit in pants
> > at the first sign of trouble.
> >
>
> Yes, that makes sense. I will remove BUG() in V3 (in the two places that I
> introduced).
>
> > Even checkpatch warns here:
> >
> > WARNING: Avoid crashing the kernel - try using WARN_ON & recovery code
> > rather than BUG() or BUG_ON()
> > #184: FILE: drivers/firmware/efi/runtime-wrappers.c:92:
> > + BUG(); \
> >
>
> Sure! I will fix this
>
> >
> > and by looking at the other output, you should run your patches
> > through checkpatch. Some of the things make sense like:
> >
> > WARNING: quoted string split across lines
> > #97: FILE: drivers/firmware/efi/efi.c:341:
> > + pr_err("Failed to create efi_rts_workqueue, EFI runtime
> > services "
> > + "disabled.\n");
> >
> > for example.
> >
>
> I will fix this one too.
>
> Another warning by checkpatch is "use of in_atomic() in drivers code"
> Do you think it's OK to check if were are "in_atomic()" in drivers code.
> I wasn't able to decide on other alternative, if possible, could you please
> suggest
> one?
>
> Regards,
> Sai
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