irqdomain: make irq_linear_revmap() a fast path again

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Over the years, irq_linear_revmap() gained tests and checks to make sure
callers were using it safely, which while important, also make it less
of a fast path. After the irqdomain refactoring done recently, it is now
possible to make irq_linear_revmap() a fast path again. This patch moves
irq_linear_revmap() to the header file and makes it a static inline so
that interrupt controller drivers using a linear mapping can decode the
virq from a hwirq in just a couple of instructions.

Signed-off-by: Grant Likely <grant.likely@linaro.org>

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Grant Likely 2013-06-10 12:19:17 +01:00

parent 56a3d5ac77

commit d3dcb436f6

2 changed files with 24 additions and 29 deletions

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include/linux/irqdomain.h

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