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authorIngo Molnar <mingo@elte.hu>2009-01-16 19:43:50 +0300
committerIngo Molnar <mingo@elte.hu>2009-01-16 19:46:49 +0300
commit74296a8ed6aa3c5bf672808ada690de7ba323ecc (patch)
treebaf9aa0f86e27d33dff0c4d0e33774fe80c908bc /include/linux/interrupt.h
parent5a2dd72abdae75ea2960145e0549635ce4e0be96 (diff)
downloadlinux-74296a8ed6aa3c5bf672808ada690de7ba323ecc.tar.xz
irq: provide debug_poll_all_shared_irqs() method under CONFIG_DEBUG_SHIRQ
Provide a shared interrupt debug facility under CONFIG_DEBUG_SHIRQ: it uses the existing irqpoll facilities to iterate through all registered interrupt handlers and call those which can handle shared IRQ lines. This can be handy for suspend/resume debugging: if we call this function early during resume we can trigger crashes in those drivers which have incorrect assumptions about when exactly their ISRs will be called during suspend/resume. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/interrupt.h')
-rw-r--r--include/linux/interrupt.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 9127f6b51a39..468e3a25a4a1 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -462,6 +462,12 @@ static inline void init_irq_proc(void)
}
#endif
+#if defined(CONFIG_GENERIC_HARDIRQS) && defined(CONFIG_DEBUG_SHIRQ)
+extern void debug_poll_all_shared_irqs(void);
+#else
+static inline void debug_poll_all_shared_irqs(void) { }
+#endif
+
int show_interrupts(struct seq_file *p, void *v);
struct irq_desc;