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include/nuttx/irq.h: Correct some comments.

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This commit is contained in:
Gregory Nutt 2018-11-25 16:04:31 -06:00
parent 7e7437e54e
commit 6f9e477de3
1 changed files with 8 additions and 2 deletions
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10
include/nuttx/irq.h
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@ -175,7 +175,9 @@ int irqchain_detach(int irq, xcpt_t isr, FAR void *arg);
* Name: enter_critical_section
*
* Description:
* If SMP is enabled:
* If thread-specific IRQ counter is enabled (for SMP or other
* instrumentation):
*
* Take the CPU IRQ lock and disable interrupts on all CPUs. A thread-
* specific counter is increment to indicate that the thread has IRQs
* disabled and to support nested calls to enter_critical_section().
@ -186,6 +188,7 @@ int irqchain_detach(int irq, xcpt_t isr, FAR void *arg);
* protected logic using spinlocks.
*
* If thread-specific IRQ counter is not enabled:
*
* This function is equivalent to up_irq_save().
*
* Input Parameters:
@ -207,12 +210,15 @@ irqstate_t enter_critical_section(void);
* Name: leave_critical_section
*
* Description:
* If SMP is enabled:
* If thread-specific IRQ counter is enabled (for SMP or other
* instrumentation):
*
* Decrement the IRQ lock count and if it decrements to zero then release
* the spinlock and restore the interrupt state as it was prior to the
* previous call to enter_critical_section().
*
* If thread-specific IRQ counter is not enabled:
*
* This function is equivalent to up_irq_restore().
*
* Input Parameters: