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0d8914165d
1394 OHCI hardware triggers PCI interrupts to notify any events to software. Current driver for the hardware is programmed by the typical way to utilize top- and bottom- halves, thus it has a timing gap to handle the notification in softIRQ (tasklet). This commit adds a tracepoint event for the hardIRQ event. The comparison of the tracepoint event to tracepoints events in firewire subsystem is helpful to diagnose the timing gap. Link: https://lore.kernel.org/r/20240625031806.956650-3-o-takashi@sakamocchi.jp Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>