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scsi: bfa: replace bfa_get_log_time() with ktime_get_real_seconds()

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The bfa_get_log_time() returns a 64-bit timestamp that does not suffer
from the y2038 overflow on 64-bit systems. However, on 32-bit
architectures the timestamp will jump from 0x000000007fffffff to
0xffffffff80000000 in y2038 and produce wrong results.

The ktime_get_real_seconds() function does the same thing as
bfa_get_log_time() without that problem, so we can simply remove the
former use ktime_get_real_seconds() instead.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Anil Gurumurthy <Anil.Gurumurthy@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Arnd Bergmann 2017-11-10 16:37:13 +01:00 committed by Martin K. Petersen
parent aa22a52e18
commit 0e9680fa13
1 changed files with 10 additions and 22 deletions
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32
drivers/scsi/bfa/bfa_svc.c
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@ -288,18 +288,6 @@ plkd_validate_logrec(struct bfa_plog_rec_s *pl_rec)
return 0;
}
static u64
bfa_get_log_time(void)
{
u64 system_time = 0;
struct timeval tv;
do_gettimeofday(&tv);
/* We are interested in seconds only. */
system_time = tv.tv_sec;
return system_time;
}
static void
bfa_plog_add(struct bfa_plog_s *plog, struct bfa_plog_rec_s *pl_rec)
{
@ -320,7 +308,7 @@ bfa_plog_add(struct bfa_plog_s *plog, struct bfa_plog_rec_s *pl_rec)
memcpy(pl_recp, pl_rec, sizeof(struct bfa_plog_rec_s));
pl_recp->tv = bfa_get_log_time();
pl_recp->tv = ktime_get_real_seconds();
BFA_PL_LOG_REC_INCR(plog->tail);
if (plog->head == plog->tail)
@ -6141,13 +6129,13 @@ bfa_fcdiag_lb_is_running(struct bfa_s *bfa)
/*
* D-port
*/
#define bfa_dport_result_start(__dport, __mode) do { \
(__dport)->result.start_time = bfa_get_log_time(); \
(__dport)->result.status = DPORT_TEST_ST_INPRG; \
(__dport)->result.mode = (__mode); \
(__dport)->result.rp_pwwn = (__dport)->rp_pwwn; \
(__dport)->result.rp_nwwn = (__dport)->rp_nwwn; \
(__dport)->result.lpcnt = (__dport)->lpcnt; \
#define bfa_dport_result_start(__dport, __mode) do { \
(__dport)->result.start_time = ktime_get_real_seconds(); \
(__dport)->result.status = DPORT_TEST_ST_INPRG; \
(__dport)->result.mode = (__mode); \
(__dport)->result.rp_pwwn = (__dport)->rp_pwwn; \
(__dport)->result.rp_nwwn = (__dport)->rp_nwwn; \
(__dport)->result.lpcnt = (__dport)->lpcnt; \
} while (0)
static bfa_boolean_t bfa_dport_send_req(struct bfa_dport_s *dport,
@ -6581,7 +6569,7 @@ bfa_dport_scn(struct bfa_dport_s *dport, struct bfi_diag_dport_scn_s *msg)
switch (dport->i2hmsg.scn.state) {
case BFI_DPORT_SCN_TESTCOMP:
dport->result.end_time = bfa_get_log_time();
dport->result.end_time = ktime_get_real_seconds();
bfa_trc(dport->bfa, dport->result.end_time);
dport->result.status = msg->info.testcomp.status;
@ -6628,7 +6616,7 @@ bfa_dport_scn(struct bfa_dport_s *dport, struct bfi_diag_dport_scn_s *msg)
case BFI_DPORT_SCN_SUBTESTSTART:
subtesttype = msg->info.teststart.type;
dport->result.subtest[subtesttype].start_time =
bfa_get_log_time();
ktime_get_real_seconds();
dport->result.subtest[subtesttype].status =
DPORT_TEST_ST_INPRG;