[06/69] time: Define dummy functions for the generic sched clock

Message ID 1450448302-27429-6-git-send-email-daniel.lezcano@linaro.org
State Accepted
Commit 364eba4b3a58a3e9af5a1355f4131a58cd1f3b8d
Headers show

Commit Message

Daniel Lezcano Dec. 18, 2015, 2:17 p.m.
When we try to compile a clocksource driver with the COMPILE_TEST option,
we can't select the GENERIC_SCHED_CLOCK because the sched_clock() symbol
will be duplicated with the one defined for the x86.

In order to fix that, we don't select the GENERIC_SCHED_CLOCK in the
driver Kconfig's file but we define some empty functions for the different
symbols in order to prevent the unresolved ones.

This patch fixes the COMPILE_TEST option for the compile test coverage for
the clocksource drivers. Without this patch, we can't add the COMPILE_TEST
option for the clocksource drivers using the GENERIC_SCHED_CLOCK.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

 include/linux/sched_clock.h | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)


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diff --git a/include/linux/sched_clock.h b/include/linux/sched_clock.h
index efa931c..411b52e 100644
--- a/include/linux/sched_clock.h
+++ b/include/linux/sched_clock.h
@@ -10,11 +10,17 @@ 
 extern void sched_clock_postinit(void);
-static inline void sched_clock_postinit(void) { }
 extern void sched_clock_register(u64 (*read)(void), int bits,
 				 unsigned long rate);
+static inline void sched_clock_postinit(void) { }
+static inline void sched_clock_register(u64 (*read)(void), int bits,
+					unsigned long rate)
+	;