From: Tina Ruchandani Date: Fri, 30 Oct 2015 09:11:10 +0000 (-0700) Subject: mvumi: 64bit value for seconds_since1970 X-Git-Tag: firefly_0821_release~176^2~600^2^2~22 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=36f8ef7f7684997f1c1efcc775b1d7cdf452ce44;p=firefly-linux-kernel-4.4.55.git 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 Reviewed-by: Johannes Thumshirn Signed-off-by: Martin K. Petersen --- diff --git a/drivers/scsi/mvumi.c b/drivers/scsi/mvumi.c index 3e6b866759fe..02360de6b7e0 100644 --- a/drivers/scsi/mvumi.c +++ b/drivers/scsi/mvumi.c @@ -31,6 +31,7 @@ #include #include #include +#include #include #include #include @@ -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);