netdev - [PATCH RFC 2/4] net: dsa: microchip: Use regmap_update

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:   Wed, 16 Jan 2019 19:22:04 -0800
From:   <Tristram.Ha@...rochip.com>
To:     Sergio Paracuellos <sergio.paracuellos@...il.com>,
        Marek Vasut <marex@...x.de>, Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Pavel Machek <pavel@....cz>,
        Dan Carpenter <dan.carpenter@...cle.com>
CC:     Tristram Ha <Tristram.Ha@...rochip.com>,
        <vivien.didelot@...oirfairelinux.com>,
        <UNGLinuxDriver@...rochip.com>, <netdev@...r.kernel.org>
Subject: [PATCH RFC 2/4] net: dsa: microchip: Use regmap_update_bits

From: Tristram Ha <Tristram.Ha@...rochip.com>

Use regmap_update_bits function for bit manipulation in 32-bit access.

Signed-off-by: Tristram Ha <Tristram.Ha@...rochip.com>
---
 drivers/net/dsa/microchip/ksz9477.c | 23 +++--------------------
 1 file changed, 3 insertions(+), 20 deletions(-)

diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c
index 89ed059..14b6371 100644
--- a/drivers/net/dsa/microchip/ksz9477.c
+++ b/drivers/net/dsa/microchip/ksz9477.c
@@ -65,31 +65,14 @@
 
 static void ksz9477_cfg32(struct ksz_device *dev, u32 addr, u32 bits, bool set)
 {
-	u32 data;
-
-	ksz_read32(dev, addr, &data);
-	if (set)
-		data |= bits;
-	else
-		data &= ~bits;
-	ksz_write32(dev, addr, data);
+	regmap_update_bits(dev->regmap[2], addr, bits, set ? bits : 0);
 }
 
 static void ksz9477_port_cfg32(struct ksz_device *dev, int port, int offset,
 			       u32 bits, bool set)
 {
-	u32 addr;
-	u32 data;
-
-	addr = PORT_CTRL_ADDR(port, offset);
-	ksz_read32(dev, addr, &data);
-
-	if (set)
-		data |= bits;
-	else
-		data &= ~bits;
-
-	ksz_write32(dev, addr, data);
+	regmap_update_bits(dev->regmap[2], PORT_CTRL_ADDR(port, offset), bits,
+			   set ? bits : 0);
 }
 
 static int ksz9477_wait_vlan_ctrl_ready(struct ksz_device *dev, u32 waiton,
-- 
1.9.1