netdev - [PATCH net-next v2 5/6] net: phy: microchip_t1s: remove unnecessary interrupts disabling code

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]

Date: Mon, 22 May 2023 17:03:30 +0530
From: Parthiban Veerasooran <Parthiban.Veerasooran@...rochip.com>
To: <andrew@...n.ch>, <hkallweit1@...il.com>, <linux@...linux.org.uk>,
	<davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
	<pabeni@...hat.com>, <netdev@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <ramon.nordin.rodriguez@...roamp.se>
CC: <horatiu.vultur@...rochip.com>, <Woojung.Huh@...rochip.com>,
	<Nicolas.Ferre@...rochip.com>, <Thorsten.Kummermehr@...rochip.com>,
	"Parthiban Veerasooran" <Parthiban.Veerasooran@...rochip.com>
Subject: [PATCH net-next v2 5/6] net: phy: microchip_t1s: remove unnecessary interrupts disabling code

By default, except Reset Complete interrupt in the Interrupt Mask 2
Register all other interrupts are disabled/masked. As Reset Complete
status is already handled, it doesn't make sense to disable it.

Signed-off-by: Parthiban Veerasooran <Parthiban.Veerasooran@...rochip.com>
---
 drivers/net/phy/microchip_t1s.c | 14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

diff --git a/drivers/net/phy/microchip_t1s.c b/drivers/net/phy/microchip_t1s.c
index 2f22a1954c09..a612f7867df8 100644
--- a/drivers/net/phy/microchip_t1s.c
+++ b/drivers/net/phy/microchip_t1s.c
@@ -12,8 +12,6 @@
 
 #define PHY_ID_LAN867X_REVB1 0x0007C162
 
-#define LAN867X_REG_IRQ_1_CTL 0x001C
-#define LAN867X_REG_IRQ_2_CTL 0x001D
 #define LAN867X_REG_STS2 0x0019
 
 #define LAN867x_RESET_COMPLETE_STS BIT(11)
@@ -104,17 +102,7 @@ static int lan867x_revb1_config_init(struct phy_device *phydev)
 			return err;
 	}
 
-	/* None of the interrupts in the lan867x phy seem relevant.
-	 * Other phys inspect the link status and call phy_trigger_machine
-	 * in the interrupt handler.
-	 * This phy does not support link status, and thus has no interrupt
-	 * for it either.
-	 * So we'll just disable all interrupts on the chip.
-	 */
-	err = phy_write_mmd(phydev, MDIO_MMD_VEND2, LAN867X_REG_IRQ_1_CTL, 0xFFFF);
-	if (err != 0)
-		return err;
-	return phy_write_mmd(phydev, MDIO_MMD_VEND2, LAN867X_REG_IRQ_2_CTL, 0xFFFF);
+	return 0;
 }
 
 static int lan867x_read_status(struct phy_device *phydev)
-- 
2.34.1