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mpt3sas: Remove usage of 'struct timeval' 

'struct timeval' will have its tv_sec value overflow on 32-bit systems
in year 2038 and beyond. This patch replaces the use of struct timeval
for computing mpi_request.TimeStamp, and instead uses ktime_t which
provides 64-bit seconds value. The timestamp computed remains
unaffected (milliseconds since Unix epoch).

Signed-off-by: Tina Ruchandani <ruchandani.tina@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Acked-by: Sathya Prakash <sathya.prakash@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Tina Ruchandani 2016-04-13 00:01:40 -07:00 committed by Martin K. Petersen
parent e83596b41c
commit 23409bd4a8
1 changed files with 4 additions and 4 deletions
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8
drivers/scsi/mpt3sas/mpt3sas_base.c
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@ -57,6 +57,7 @@
#include <linux/dma-mapping.h>
#include <linux/io.h>
#include <linux/time.h>
#include <linux/ktime.h>
#include <linux/kthread.h>
#include <linux/aer.h>
@ -4387,7 +4388,7 @@ _base_send_ioc_init(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
Mpi2IOCInitRequest_t mpi_request;
Mpi2IOCInitReply_t mpi_reply;
int i, r = 0;
struct timeval current_time;
ktime_t current_time;
u16 ioc_status;
u32 reply_post_free_array_sz = 0;
Mpi2IOCInitRDPQArrayEntry *reply_post_free_array = NULL;
@ -4449,9 +4450,8 @@ _base_send_ioc_init(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
/* This time stamp specifies number of milliseconds
* since epoch ~ midnight January 1, 1970.
*/
do_gettimeofday(&current_time);
mpi_request.TimeStamp = cpu_to_le64((u64)current_time.tv_sec * 1000 +
(current_time.tv_usec / 1000));
current_time = ktime_get_real();
mpi_request.TimeStamp = cpu_to_le64(ktime_to_ms(current_time));
if (ioc->logging_level & MPT_DEBUG_INIT) {
__le32 *mfp;