linux-kernel - [PATCH v5 2/2] net: lan743x: Remove duplicate check

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Message-ID: <20241008091101.713898-3-ruanjinjie@huawei.com>
Date: Tue, 8 Oct 2024 17:11:01 +0800
From: Jinjie Ruan <ruanjinjie@...wei.com>
To: <bryan.whitehead@...rochip.com>, <davem@...emloft.net>,
	<edumazet@...gle.com>, <kuba@...nel.org>, <pabeni@...hat.com>,
	<anna-maria@...utronix.de>, <frederic@...nel.org>, <tglx@...utronix.de>,
	<richardcochran@...il.com>, <johnstul@...ibm.com>,
	<UNGLinuxDriver@...rochip.com>, <netdev@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
CC: <ruanjinjie@...wei.com>
Subject: [PATCH v5 2/2] net: lan743x: Remove duplicate check

Since timespec64_valid() has been checked in higher layer
pc_clock_settime(), the duplicate check in lan743x_ptpci_settime64()
can be removed.

Signed-off-by: Jinjie Ruan <ruanjinjie@...wei.com>
---
v4:
- Update the commit message.
v2:
- Check it in ptp core instead of using NSEC_PER_SEC macro.
- Remove the NULL check.
---
 drivers/net/ethernet/microchip/lan743x_ptp.c | 35 ++++++++------------
 1 file changed, 14 insertions(+), 21 deletions(-)

diff --git a/drivers/net/ethernet/microchip/lan743x_ptp.c b/drivers/net/ethernet/microchip/lan743x_ptp.c
index dcea6652d56d..4a777b449ecd 100644
--- a/drivers/net/ethernet/microchip/lan743x_ptp.c
+++ b/drivers/net/ethernet/microchip/lan743x_ptp.c
@@ -401,28 +401,21 @@ static int lan743x_ptpci_settime64(struct ptp_clock_info *ptpci,
 	u32 nano_seconds = 0;
 	u32 seconds = 0;
 
-	if (ts) {
-		if (ts->tv_sec > 0xFFFFFFFFLL ||
-		    ts->tv_sec < 0) {
-			netif_warn(adapter, drv, adapter->netdev,
-				   "ts->tv_sec out of range, %lld\n",
-				   ts->tv_sec);
-			return -ERANGE;
-		}
-		if (ts->tv_nsec >= 1000000000L ||
-		    ts->tv_nsec < 0) {
-			netif_warn(adapter, drv, adapter->netdev,
-				   "ts->tv_nsec out of range, %ld\n",
-				   ts->tv_nsec);
-			return -ERANGE;
-		}
-		seconds = ts->tv_sec;
-		nano_seconds = ts->tv_nsec;
-		lan743x_ptp_clock_set(adapter, seconds, nano_seconds, 0);
-	} else {
-		netif_warn(adapter, drv, adapter->netdev, "ts == NULL\n");
-		return -EINVAL;
+	if (ts->tv_sec > 0xFFFFFFFFLL) {
+		netif_warn(adapter, drv, adapter->netdev,
+			   "ts->tv_sec out of range, %lld\n",
+			   ts->tv_sec);
+		return -ERANGE;
+	}
+	if (ts->tv_nsec < 0) {
+		netif_warn(adapter, drv, adapter->netdev,
+			   "ts->tv_nsec out of range, %ld\n",
+			   ts->tv_nsec);
+		return -ERANGE;
 	}
+	seconds = ts->tv_sec;
+	nano_seconds = ts->tv_nsec;
+	lan743x_ptp_clock_set(adapter, seconds, nano_seconds, 0);
 
 	return 0;
 }
-- 
2.34.1