linux-kernel - [PATCH] benet: Use time_before

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Message-Id: <1493647088-4394-1-git-send-email-karim.eshapa@gmail.com>
Date:   Mon,  1 May 2017 15:58:08 +0200
From:   Karim Eshapa <karim.eshapa@...il.com>
To:     sathya.perla@...adcom.com
Cc:     ajit.khaparde@...adcom.com, sriharsha.basavapatna@...adcom.com,
        somnath.kotur@...adcom.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, Karim Eshapa <karim.eshapa@...il.com>
Subject: [PATCH] benet: Use time_before_eq for time comparison

Use time_before_eq for time comparison more safe and dealing
with timer wrapping to be future-proof.

Signed-off-by: Karim Eshapa <karim.eshapa@...il.com>
---
 drivers/net/ethernet/emulex/benet/be_main.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 6be3b9a..56d2368 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -5217,15 +5217,15 @@ static bool be_err_is_recoverable(struct be_adapter *adapter)
 	dev_err(&adapter->pdev->dev, "Recoverable HW error code: 0x%x\n",
 		ue_err_code);
 
-	if (jiffies - err_rec->probe_time <= initial_idle_time) {
+	if (time_before_eq(jiffies - err_rec->probe_time, initial_idle_time)) {
 		dev_err(&adapter->pdev->dev,
 			"Cannot recover within %lu sec from driver load\n",
 			jiffies_to_msecs(initial_idle_time) / MSEC_PER_SEC);
 		return false;
 	}
 
-	if (err_rec->last_recovery_time &&
-	    (jiffies - err_rec->last_recovery_time <= recovery_interval)) {
+	if (err_rec->last_recovery_time && time_before_eq(
+		jiffies - err_rec->last_recovery_time, recovery_interval)) {
 		dev_err(&adapter->pdev->dev,
 			"Cannot recover within %lu sec from last recovery\n",
 			jiffies_to_msecs(recovery_interval) / MSEC_PER_SEC);
-- 
2.7.4