netdev - [PATCH net v4 1/4] rtase: Refactor the rtase_check_mac_version

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20241119095706.480752-2-justinlai0215@realtek.com>
Date: Tue, 19 Nov 2024 17:57:03 +0800
From: Justin Lai <justinlai0215@...ltek.com>
To: <kuba@...nel.org>
CC: <davem@...emloft.net>, <edumazet@...gle.com>, <pabeni@...hat.com>,
        <andrew+netdev@...n.ch>, <linux-kernel@...r.kernel.org>,
        <netdev@...r.kernel.org>, <horms@...nel.org>, <pkshih@...ltek.com>,
        <larry.chiu@...ltek.com>, Justin Lai <justinlai0215@...ltek.com>
Subject: [PATCH net v4 1/4] rtase: Refactor the rtase_check_mac_version_valid() function

Different hardware requires different configurations, and this distinction
was not made previously. Additionally, the error message was not clear
enough. Therefore, in this patch, the following changes have been made to
address these issues:
1. Sets tp->hw_ver.
2. Changes the return type from bool to int.
3. Modify the error message for an invalid hardware version id.

Fixes: a36e9f5cfe9e ("rtase: Add support for a pci table in this module")
Signed-off-by: Justin Lai <justinlai0215@...ltek.com>
---
 drivers/net/ethernet/realtek/rtase/rtase.h    |  2 ++
 .../net/ethernet/realtek/rtase/rtase_main.c   | 22 +++++++++++--------
 2 files changed, 15 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/realtek/rtase/rtase.h b/drivers/net/ethernet/realtek/rtase/rtase.h
index 583c33930f88..547c71937b01 100644
--- a/drivers/net/ethernet/realtek/rtase/rtase.h
+++ b/drivers/net/ethernet/realtek/rtase/rtase.h
@@ -327,6 +327,8 @@ struct rtase_private {
 	u16 int_nums;
 	u16 tx_int_mit;
 	u16 rx_int_mit;
+
+	u32 hw_ver;
 };
 
 #define RTASE_LSO_64K 64000
diff --git a/drivers/net/ethernet/realtek/rtase/rtase_main.c b/drivers/net/ethernet/realtek/rtase/rtase_main.c
index f8777b7663d3..0c19c5645d53 100644
--- a/drivers/net/ethernet/realtek/rtase/rtase_main.c
+++ b/drivers/net/ethernet/realtek/rtase/rtase_main.c
@@ -1972,20 +1972,21 @@ static void rtase_init_software_variable(struct pci_dev *pdev,
 	tp->dev->max_mtu = RTASE_MAX_JUMBO_SIZE;
 }
 
-static bool rtase_check_mac_version_valid(struct rtase_private *tp)
+static int rtase_check_mac_version_valid(struct rtase_private *tp)
 {
-	u32 hw_ver = rtase_r32(tp, RTASE_TX_CONFIG_0) & RTASE_HW_VER_MASK;
-	bool known_ver = false;
+	int ret = -ENODEV;
 
-	switch (hw_ver) {
+	tp->hw_ver = rtase_r32(tp, RTASE_TX_CONFIG_0) & RTASE_HW_VER_MASK;
+
+	switch (tp->hw_ver) {
 	case 0x00800000:
 	case 0x04000000:
 	case 0x04800000:
-		known_ver = true;
+		ret = 0;
 		break;
 	}
 
-	return known_ver;
+	return ret;
 }
 
 static int rtase_init_board(struct pci_dev *pdev, struct net_device **dev_out,
@@ -2105,9 +2106,12 @@ static int rtase_init_one(struct pci_dev *pdev,
 	tp->pdev = pdev;
 
 	/* identify chip attached to board */
-	if (!rtase_check_mac_version_valid(tp))
-		return dev_err_probe(&pdev->dev, -ENODEV,
-				     "unknown chip version, contact rtase maintainers (see MAINTAINERS file)\n");
+	ret = rtase_check_mac_version_valid(tp);
+	if (ret != 0) {
+		dev_err(&pdev->dev,
+			"unknown chip version: 0x%08x, contact rtase maintainers (see MAINTAINERS file)\n",
+			tp->hw_ver);
+	}
 
 	rtase_init_software_variable(pdev, tp);
 	rtase_init_hardware(tp);
-- 
2.34.1