wt., 23 cze 2020 o 06:02 Kent Gibson <[email protected]> napisał(a): > > Reset the timestamp field to 0 after using it in lineevent_irq_thread. > > The timestamp is set by lineevent_irq_handler and is tested by > lineevent_irq_thread to determine if it is called from a nested theaded > interrupt. > lineevent_irq_thread is assuming that the nested, or otherwise, status > of the IRQ is static, i.e. it is either always nested or never nested. > This change removes that assumption, resetting the timestamp so it can > be re-used to determine the nested state of subsequent interrupts. > > Signed-off-by: Kent Gibson <[email protected]> >
This change makes sense to me but I'm having a hard time processing the explanation. If we're requesting the interrupt and allocating the lineevent state in the same function - how can we run into a situation here the status of the irq would change like what you describe? Bart
