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A single fix for a recent (introduced in 5.16) regression in the core

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interrupt code. The consolidation of the interrupt handler invocation code
 added an unconditional warning when generic_handle_domain_irq() is invoked
 from outside hard interrupt context. That's overbroad as the requirement
 for invoking these handlers in hard interrupt context is only required for
 certain interrupt types. The subsequently called code already contains a
 warning which triggers conditionally for interrupt chips which indicate
 this requirement in their properties. Remove the overbroad one.
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Merge tag 'irq-urgent-2022-05-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq fix from Thomas Gleixner:
 "A single fix for a recent (introduced in 5.16) regression in the core
  interrupt code.

  The consolidation of the interrupt handler invocation code added an
  unconditional warning when generic_handle_domain_irq() is invoked from
  outside hard interrupt context. That's overbroad as the requirement
  for invoking these handlers in hard interrupt context is only required
  for certain interrupt types. The subsequently called code already
  contains a warning which triggers conditionally for interrupt chips
  which indicate this requirement in their properties.

  Remove the overbroad one"

* tag 'irq-urgent-2022-05-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  genirq: Remove WARN_ON_ONCE() in generic_handle_domain_irq()
This commit is contained in:
Linus Torvalds 2022-05-15 06:37:05 -07:00
commit fb756280f9
1 changed files with 0 additions and 1 deletions
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1
kernel/irq/irqdesc.c
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@ -701,7 +701,6 @@ EXPORT_SYMBOL_GPL(generic_handle_irq_safe);
*/
int generic_handle_domain_irq(struct irq_domain *domain, unsigned int hwirq)
{
WARN_ON_ONCE(!in_hardirq());
return handle_irq_desc(irq_resolve_mapping(domain, hwirq));
}
EXPORT_SYMBOL_GPL(generic_handle_domain_irq);