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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-09-18 11:08:00 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-09-18 11:08:00 -0700 |
| commit | aaed4d0bddaef70640fa8ac0d52a380e2d3c6101 (patch) | |
| tree | 68cb6ee186a6a96485121eb2270d45ca71b66be8 /include | |
| parent | d4690f1e1cdabb4d61207b6787b1605a0dc0aeab (diff) | |
| parent | 5eb0d6eb3fac3daa60d9190eed9fa41cf809c756 (diff) | |
| download | linux-0-day-aaed4d0bddaef70640fa8ac0d52a380e2d3c6101.tar.gz linux-0-day-aaed4d0bddaef70640fa8ac0d52a380e2d3c6101.tar.xz | |
Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
"Two patches from Boris which address a potential deadlock in the atmel
irq chip driver"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/atmel-aic: Fix potential deadlock in ->xlate()
genirq: Provide irq_gc_{lock_irqsave,unlock_irqrestore}() helpers
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/irq.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/irq.h b/include/linux/irq.h index b52424eaa0ed3..0ac26c892fe25 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -945,6 +945,16 @@ static inline void irq_gc_lock(struct irq_chip_generic *gc) { } static inline void irq_gc_unlock(struct irq_chip_generic *gc) { } #endif +/* + * The irqsave variants are for usage in non interrupt code. Do not use + * them in irq_chip callbacks. Use irq_gc_lock() instead. + */ +#define irq_gc_lock_irqsave(gc, flags) \ + raw_spin_lock_irqsave(&(gc)->lock, flags) + +#define irq_gc_unlock_irqrestore(gc, flags) \ + raw_spin_unlock_irqrestore(&(gc)->lock, flags) + static inline void irq_reg_writel(struct irq_chip_generic *gc, u32 val, int reg_offset) { |