diff options
| author |   Sebastian Andrzej Siewior <sebastian@breakpoint.cc> | 2011-05-31 08:56:11 +0200 |
|---|---|---|
| committer |   Thomas Gleixner <tglx@linutronix.de> | 2011-06-03 14:53:15 +0200 |
| commit | 3a43e05f4d0600e906fa09f4a65d749288c44592 (patch) | |
| tree | b99732c8f459e70078c7dd90f62a5174376e3c62 /include/linux/irqreturn.h | |
| parent | genirq: Print threaded handler in spurious debug output (diff) | |
| download | linux-dev-3a43e05f4d0600e906fa09f4a65d749288c44592.tar.xz linux-dev-3a43e05f4d0600e906fa09f4a65d749288c44592.zip | |
irq: Handle spurios irq detection for threaded irqs
The detection of spurios interrupts is currently limited to first level
handler. In force-threaded mode we never notice if the threaded irq does
not feel responsible.
This patch catches the return value of the threaded handler and forwards
it to the spurious detector. If the primary handler returns only
IRQ_WAKE_THREAD then the spourious detector ignores it because it gets
called again from the threaded handler.
[ tglx: Report the erroneous return value early and bail out ]
Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Link: http://lkml.kernel.org/r/1306824972-27067-2-git-send-email-sebastian@breakpoint.cc
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux/irqreturn.h')
| -rw-r--r-- | include/linux/irqreturn.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/irqreturn.h b/include/linux/irqreturn.h index 819acaaac3f5..714ba08dc092 100644 --- a/include/linux/irqreturn.h +++ b/include/linux/irqreturn.h @@ -8,9 +8,9 @@ * @IRQ_WAKE_THREAD handler requests to wake the handler thread */ enum irqreturn { - IRQ_NONE, - IRQ_HANDLED, - IRQ_WAKE_THREAD, + IRQ_NONE = (0 << 0), + IRQ_HANDLED = (1 << 0), + IRQ_WAKE_THREAD = (1 << 1), }; typedef enum irqreturn irqreturn_t; |