diff options
authorSascha Hauer <>2017-05-05 14:49:25 +0200
committerSascha Hauer <>2017-05-05 14:53:38 +0200
commite5f2191e7b6920e67dd45b34d9b1c86d04456ffa (patch)
parent587afe8133b0218cde15750947e82f199d9ed6aa (diff)
clock: initialize dummy clocksource statically
Assigning the dummy clocksource in a initcall has the problem that get_time_ns() crashes before that initcall is executed. This happens when dmesg support is enabled in conjunction with CONFIG_DEBUG_INITCALLS. In this case the dmesg code wants to have the timestamp of a log message. Solve this by setting the current clocksource to the dummy clock statically and not at runtime. This way we always have a dummy clock available. Fixes: commit 8972eb7ff17ad058a6c6018305bb912138ab0ca2 Author: Jean-Christophe PLAGNIOL-VILLARD <> Date: Fri Mar 3 13:34:02 2017 +0100 clocksource: move dummy clock source to init_clock Signed-off-by: Sascha Hauer <>
1 files changed, 1 insertions, 6 deletions
diff --git a/common/clock.c b/common/clock.c
index 0d581c2..f98176d 100644
--- a/common/clock.c
+++ b/common/clock.c
@@ -27,7 +27,6 @@
#include <clock.h>
#include <poller.h>
-static struct clocksource *current_clock;
static uint64_t time_ns;
@@ -53,11 +52,7 @@ static struct clocksource dummy_cs = {
.priority = -1,
-static int dummy_csrc_init(void)
- return init_clock(&dummy_cs);
+static struct clocksource *current_clock = &dummy_cs;
static int dummy_csrc_warn(void)