| Date | Tue, 27 Oct 2020 08:51:15 +0000 | From | Marc Zyngier <> | Subject | Re: [PATCH AUTOSEL 5.9 087/147] genirq: Add stub for set_handle_irq() when !GENERIC_IRQ_MULTI_HANDLER |
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On 2020-10-26 23:48, Sasha Levin wrote: > From: Zhen Lei <thunder.leizhen@huawei.com> > > [ Upstream commit ea0c80d1764449acf2f70fdb25aec33800cd0348 ] > > In order to avoid compilation errors when a driver references > set_handle_irq(), > but that the architecture doesn't select GENERIC_IRQ_MULTI_HANDLER, > add a stub function that will just WARN_ON_ONCE() if ever used. > > Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> > [maz: commit message] > Signed-off-by: Marc Zyngier <maz@kernel.org> > Link: > https://lore.kernel.org/r/20200924071754.4509-2-thunder.leizhen@huawei.com > Signed-off-by: Sasha Levin <sashal@kernel.org> > --- > include/linux/irq.h | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/include/linux/irq.h b/include/linux/irq.h > index 1b7f4dfee35b3..b167baef88c0b 100644 > --- a/include/linux/irq.h > +++ b/include/linux/irq.h > @@ -1252,6 +1252,12 @@ int __init set_handle_irq(void > (*handle_irq)(struct pt_regs *)); > * top-level IRQ handler. > */ > extern void (*handle_arch_irq)(struct pt_regs *) __ro_after_init; > +#else > +#define set_handle_irq(handle_irq) \ > + do { \ > + (void)handle_irq; \ > + WARN_ON(1); \ > + } while (0) > #endif > > #endif /* _LINUX_IRQ_H */
What is the reason for this backport? The only user is a driver that isn't getting backported (d59f7d159891 and following patches).
Thanks,
M. -- Jazz is not dead. It just smells funny...
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