[PATCH] ntp: use memset and offsetof init

Yejune Deng
2021-01-20T03:06:22Z

In pps_fill_timex(), use memset and offsetof instead of '= 0'.

Signed-off-by: Yejune Deng <yejune.deng@gmail.com>
---
kernel/time/ntp.c | 13 +++++--------
1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
index 87389b9e21ab..3416c0381104 100644
--- a/kernel/time/ntp.c
+++ b/kernel/time/ntp.c
@@ -225,14 +225,11 @@ static inline int is_error_status(int status)
static inline void pps_fill_timex(struct __kernel_timex *txc)
{
/* PPS is not implemented, so these are zero */
- txc->ppsfreq = 0;
- txc->jitter = 0;
- txc->shift = 0;
- txc->stabil = 0;
- txc->jitcnt = 0;
- txc->calcnt = 0;
- txc->errcnt = 0;
- txc->stbcnt = 0;
+ int offset, len;
+
+ offset = offsetof(struct __kernel_timex, ppsfreq);
+ len = offsetof(struct __kernel_timex, tai) - offset;
+ memset(txc + offset, 0, len);
}

#endif /* CONFIG_NTP_PPS */
--
2.29.0