From: Colin Ian King <colin.king@canonical.com>
Date: Sat, 9 Dec 2017 00:34:14 +0000
Subject: [PATCH] scsi: arcmsr: remove redundant check for secs < 0
Git-commit: 3c62ecda0e24f4ae84181184457d4e37f5250c7f
Patch-mainline: v4.16-rc1
References: bsc#1118139

The check for secs being less than zero is redundant for two reasons.
Firstly, secs is unsigned so the check is always going to be false.
Secondly, if secs was signed the proceeding calculation of secs is never
going to be negative.  Hence we can remove this redundant check and day
and secs re-adjustment.

Detected by static analysis with smatch:
arcmsr_set_iop_datetime() warn: unsigned 'secs' is never less than zero.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Ching Huang <ching2048@areca.com.tw>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Hannes Reinecke <hare@suse.com>
---
 drivers/scsi/arcmsr/arcmsr_hba.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
index 0707a60bf5c0..e4258b69f4be 100644
--- a/drivers/scsi/arcmsr/arcmsr_hba.c
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c
@@ -3679,10 +3679,6 @@ static void arcmsr_set_iop_datetime(struct timer_list *t)
 	secs = (u32)(tv.tv_sec - (sys_tz.tz_minuteswest * 60));
 	days = secs / 86400;
 	secs = secs - 86400 * days;
-	if (secs < 0) {
-		days = days - 1;
-		secs = secs + 86400;
-	}
 	j = days / 146097;
 	i = days - 146097 * j;
 	a = i + 719468;
-- 
2.12.3