Thread (11 messages) 11 messages, 3 authors, 2015-04-07

Build regression in next-20150331

From: Rafael J. Wysocki <hidden>
Date: 2015-03-31 22:39:44
Also in: lkml

On Tuesday, March 31, 2015 11:39:37 AM Tyler Baker wrote:
quoted hunk ↗ jump to hunk
Hi Thomas, Rafael,

I was notified this morning by the kernelci.org system that a new
build error has been detected in next-20150331[0][1][2]. It seems that
"clockevents: Remove CONFIG_GENERIC_CLOCKEVENTS_BUILD"
c9439b1d6eb4ada5c2faf3970ac0d2bc4bd20e14 is the culprit.

Initially, I reported these failures to John Stultz and his response is below.

*snip*

I suspect we either need to enable GENERIC_CLOCKEVENTS on those three
hardware types, or if that's not possible, rework the definitions.

Or something like (copy-paste whitespace corruption below.. only for
reference, don't apply):
diff --git a/kernel/time/tick-internal.h b/kernel/time/tick-internal.h
index 2a1563a..6da40c0 100644
--- a/kernel/time/tick-internal.h
+++ b/kernel/time/tick-internal.h
@@ -107,12 +107,13 @@ static inline void tick_resume_broadcast(void) { }
 static inline bool tick_resume_check_broadcast(void) { return false; }
 static inline void tick_broadcast_init(void) { }
 static inline int tick_broadcast_update_freq(struct
clock_event_device *dev, u32 freq) { return -ENODEV; }
-
+#ifdef CONFIG_GENERIC_CLOCKEVENTS
 /* Set the periodic handler in non broadcast mode */
 static inline void tick_set_periodic_handler(struct
clock_event_device *dev, int broadcast)
 {
        dev->event_handler = tick_handle_periodic;
 }
+#endif
 #endif /* !BROADCAST */

*snip*

Any chance either of you can reproduce this issue on your end?
Can you please tell me if the appended patch helps?

Rafael


---
 kernel/time/tick-internal.h |    4 ++++
 1 file changed, 4 insertions(+)

Index: linux-pm/kernel/time/tick-internal.h
===================================================================
--- linux-pm.orig/kernel/time/tick-internal.h
+++ linux-pm/kernel/time/tick-internal.h
@@ -107,11 +107,15 @@ static inline bool tick_resume_check_bro
 static inline void tick_broadcast_init(void) { }
 static inline int tick_broadcast_update_freq(struct clock_event_device *dev, u32 freq) { return -ENODEV; }
 
+#ifdef CONFIG_GENERIC_CLOCKEVENTS
 /* Set the periodic handler in non broadcast mode */
 static inline void tick_set_periodic_handler(struct clock_event_device *dev, int broadcast)
 {
 	dev->event_handler = tick_handle_periodic;
 }
+#else
+static void tick_handle_periodic(struct clock_event_device *dev) { }
+#endif
 #endif /* !BROADCAST */
 
 /* Functions related to oneshot broadcasting */
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