linux-kernel - [PATCH] input: serio: use time_after

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Message-Id: <1644481854-14725-1-git-send-email-wangqing@vivo.com>
Date:   Thu, 10 Feb 2022 00:30:54 -0800
From:   Qing Wang <wangqing@...o.com>
To:     Dmitry Torokhov <dmitry.torokhov@...il.com>,
        linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Wang Qing <wangqing@...o.com>
Subject: [PATCH] input: serio: use time_after_eq() instead of jiffies judgment

From: Wang Qing <wangqing@...o.com>

It is better to use time_xxx() directly instead of jiffies judgment
for understanding.

Signed-off-by: Wang Qing <wangqing@...o.com>
---
 drivers/input/serio/ps2-gpio.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/input/serio/ps2-gpio.c b/drivers/input/serio/ps2-gpio.c
index 8970b49..7834296
--- a/drivers/input/serio/ps2-gpio.c
+++ b/drivers/input/serio/ps2-gpio.c
@@ -136,7 +136,7 @@ static irqreturn_t ps2_gpio_irq_rx(struct ps2_gpio_data *drvdata)
 	if (old_jiffies == 0)
 		old_jiffies = jiffies;
 
-	if ((jiffies - old_jiffies) > usecs_to_jiffies(100)) {
+	if (time_after(jiffies, old_jiffies + usecs_to_jiffies(100))) {
 		dev_err(drvdata->dev,
 			"RX: timeout, probably we missed an interrupt\n");
 		goto err;
@@ -237,7 +237,7 @@ static irqreturn_t ps2_gpio_irq_tx(struct ps2_gpio_data *drvdata)
 	if (old_jiffies == 0)
 		old_jiffies = jiffies;
 
-	if ((jiffies - old_jiffies) > usecs_to_jiffies(100)) {
+	if (time_after(jiffies, old_jiffies + usecs_to_jiffies(100))) {
 		dev_err(drvdata->dev,
 			"TX: timeout, probably we missed an interrupt\n");
 		goto err;
-- 
2.7.4