linux-kernel - [PATCH v5 04/14] net: phy: at803x: use GENMASK() for speed status

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 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]

Date:   Sat, 23 Oct 2021 11:24:02 +0800
From:   Luo Jie <luoj@...eaurora.org>
To:     andrew@...n.ch, hkallweit1@...il.com, linux@...linux.org.uk,
        davem@...emloft.net, kuba@...nel.org
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        sricharan@...eaurora.org, Luo Jie <luoj@...eaurora.org>
Subject: [PATCH v5 04/14] net: phy: at803x: use GENMASK() for speed status

Use GENMASK() for the current speed value.

Signed-off-by: Luo Jie <luoj@...eaurora.org>
---
 drivers/net/phy/at803x.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
index 1363f12ba659..3465f2bb6356 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -33,10 +33,10 @@
 #define AT803X_SFC_DISABLE_JABBER		BIT(0)
 
 #define AT803X_SPECIFIC_STATUS			0x11
-#define AT803X_SS_SPEED_MASK			(3 << 14)
-#define AT803X_SS_SPEED_1000			(2 << 14)
-#define AT803X_SS_SPEED_100			(1 << 14)
-#define AT803X_SS_SPEED_10			(0 << 14)
+#define AT803X_SS_SPEED_MASK			GENMASK(15, 14)
+#define AT803X_SS_SPEED_1000			2
+#define AT803X_SS_SPEED_100			1
+#define AT803X_SS_SPEED_10			0
 #define AT803X_SS_DUPLEX			BIT(13)
 #define AT803X_SS_SPEED_DUPLEX_RESOLVED		BIT(11)
 #define AT803X_SS_MDIX				BIT(6)
@@ -994,7 +994,7 @@ static int at803x_read_status(struct phy_device *phydev)
 		if (sfc < 0)
 			return sfc;
 
-		switch (ss & AT803X_SS_SPEED_MASK) {
+		switch (FIELD_GET(AT803X_SS_SPEED_MASK, ss)) {
 		case AT803X_SS_SPEED_10:
 			phydev->speed = SPEED_10;
 			break;
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project