[PATCH 0/2] Remove unnecessary NULL check of the kstat_irqs field

[Radu Rendec <radu@rendec.net>]

The kstat_irqs field of struct irq_desc is used to store a per-cpu count
of interrupt events. It is initialized in init_desc(), along with all
the other fields in struct irq_desc that need explicit initialization,
and therefore it's always available (non-NULL) for any valid interrupt
descriptor.

This series removes the unnecessary NULL check of the kstat_irqs field.
The first patch addresses the generic IRQ code, and the second patch
addresses one isolated occurrence in the parisc code. The first patch
also includes a more detailed description of why removing the NULL check
is safe.

Radu Rendec (2):
  genirq: Remove unnecessary NULL check of the kstat_irqs field
  parisc: Remove unnecessary NULL check of the kstat_irqs field

 arch/parisc/kernel/smp.c |  2 +-
 include/linux/irqdesc.h  |  2 +-
 kernel/irq/irqdesc.c     | 11 ++++-------
 3 files changed, 6 insertions(+), 9 deletions(-)

-- 
2.54.0