This patch replaces timeval with timespec64 as 32 bit 'struct timeval'
will not give current time beyond year 2038.
The patch changes the code to use ktime_get_real_ts64() which returns
a 'struct timespec64' instead of do_gettimeofday() which returns a
'struct timeval'
This patch also alters the format strings in sprintf() for now.tv_sec
and now.tv_nsec to incorporate 'long long' on 32 bit architectures and
leading zeroes respectively.
Signed-off-by: Amitoj Kaur Chawla <amitoj1...@gmail.com>
Reviewed-by: Arnd Bergmann <a...@arndb.de>
---
Changes in v2:
-change format string of now.tv_sec to '%llu'
-change format string of now.tv_nsec to '%.08lu'
Changes in v3:
-Replace tv_usec with tv_nsec, error made in v2
-Build tested
Changes in v4:
-Removed checkpatch.pl errors
drivers/misc/ibmasm/ibmasm.h | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/misc/ibmasm/ibmasm.h b/drivers/misc/ibmasm/ibmasm.h
index 9b08344..25be44e 100644
--- a/drivers/misc/ibmasm/ibmasm.h
+++ b/drivers/misc/ibmasm/ibmasm.h
@@ -34,6 +34,7 @@
#include <linux/kref.h>
#include <linux/device.h>
#include <linux/input.h>
+#include <linux/time64.h>
/* Driver identification */
#define DRIVER_NAME "ibmasm"
@@ -53,9 +54,11 @@ extern int ibmasm_debug;
static inline char *get_timestamp(char *buf)
{
- struct timeval now;
- do_gettimeofday(&now);
- sprintf(buf, "%lu.%lu", now.tv_sec, now.tv_usec);
+ struct timespec64 now;
+
+ ktime_get_real_ts64(&now);
+ sprintf(buf, "%llu.%.08lu", (long long)now.tv_sec,
+ now.tv_nsec / NSEC_PER_USEC);
return buf;
}
--
1.9.1
