Commit-ID: 7494e9eedee2121305a48af4fbbcedb69a2c2b93
Gitweb: http://git.kernel.org/tip/7494e9eedee2121305a48af4fbbcedb69a2c2b93
Author: Xunlei Pang <pang.xunlei@xxxxxxxxxx>
AuthorDate: Sun, 26 Jul 2015 18:45:39 +0800
Committer: John Stultz <john.stultz@xxxxxxxxxx>
CommitDate: Mon, 17 Aug 2015 11:25:16 -0700
time: Add the common weak version of update_persistent_clock()
The weak update_persistent_clock64() calls update_persistent_clock(),
if the architecture defines an update_persistent_clock64() to replace
and remove its update_persistent_clock() version, when building the
kernel the linker will throw an undefined symbol error, that is, any
arch that switches to update_persistent_clock64() will have this issue.
To solve the issue, we add the common weak update_persistent_clock().
Cc: Prarit Bhargava <prarit@xxxxxxxxxx>
Cc: Richard Cochran <richardcochran@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Xunlei Pang <pang.xunlei@xxxxxxxxxx>
Signed-off-by: John Stultz <john.stultz@xxxxxxxxxx>
---
kernel/time/ntp.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
index fb4d98c..df68cb8 100644
--- a/kernel/time/ntp.c
+++ b/kernel/time/ntp.c
@@ -487,6 +487,11 @@ out:
}
#ifdef CONFIG_GENERIC_CMOS_UPDATE
+int __weak update_persistent_clock(struct timespec now)
+{
+ return -ENODEV;
+}
+
int __weak update_persistent_clock64(struct timespec64 now64)
{
struct timespec now;
--
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