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Subject[PATCH 1/7] scsi: bfa: use ktime_get_real_ts64 for firmware timestamp
Date
BFA_TRC_TS() calculates a 32-bit microsecond timestamp using the
deprecated do_gettimeofday() function. This overflows roughly every
71 minutes, so it's obviously not used as an absolute time stamp,
but it seems wrong to use a time base for it that will jump
during settimeofday() calls, leap seconds, or the y2038 overflow.

This converts it to ktime_get_ts64(), which has none of those
problems but is not synchronized to wall-clock time.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/scsi/bfa/bfa_cs.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/bfa/bfa_cs.h b/drivers/scsi/bfa/bfa_cs.h
index df6760ca0911..9685efc59b16 100644
--- a/drivers/scsi/bfa/bfa_cs.h
+++ b/drivers/scsi/bfa/bfa_cs.h
@@ -35,10 +35,10 @@

#define BFA_TRC_TS(_trcm) \
({ \
- struct timeval tv; \
+ struct timespec64 ts; \
\
- do_gettimeofday(&tv); \
- (tv.tv_sec*1000000+tv.tv_usec); \
+ ktime_get_ts64(&ts); \
+ (ts.tv_sec*1000000+ts.tv_nsec / 1000); \
})

#ifndef BFA_TRC_TS
--
2.9.0
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