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mvumi: 64bit value for seconds_since1970 

struct mvumi_hs_page2 stores a "seconds_since1970" field which is of
type u64. It is however, written to, using 'struct timeval' which has
a 32-bit seconds field and whose value will overflow in year 2038.
This patch uses ktime_get_real_seconds() instead since it provides a
64-bit seconds value, which is 2038 safe.

Signed-off-by: Tina Ruchandani <ruchandani.tina@gmail.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Tina Ruchandani 2015-10-30 02:11:10 -07:00 committed by Martin K. Petersen
parent dd29dae00d
commit 36f8ef7f76
1 changed files with 5 additions and 5 deletions
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10
drivers/scsi/mvumi.c
View File

@ -31,6 +31,7 @@
#include <linux/spinlock.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/ktime.h>
#include <linux/blkdev.h>
#include <linux/io.h>
#include <scsi/scsi.h>
@ -858,8 +859,8 @@ static void mvumi_hs_build_page(struct mvumi_hba *mhba,
struct mvumi_hs_page2 *hs_page2;
struct mvumi_hs_page4 *hs_page4;
struct mvumi_hs_page3 *hs_page3;
struct timeval time;
unsigned int local_time;
u64 time;
u64 local_time;
switch (hs_header->page_code) {
case HS_PAGE_HOST_INFO:
@ -877,9 +878,8 @@ static void mvumi_hs_build_page(struct mvumi_hba *mhba,
hs_page2->slot_number = 0;
hs_page2->intr_level = 0;
hs_page2->intr_vector = 0;
do_gettimeofday(&time);
local_time = (unsigned int) (time.tv_sec -
(sys_tz.tz_minuteswest * 60));
time = ktime_get_real_seconds();
local_time = (time - (sys_tz.tz_minuteswest * 60));
hs_page2->seconds_since1970 = local_time;
hs_header->checksum = mvumi_calculate_checksum(hs_header,
hs_header->frame_length);