netdev - [PATCH V4 05/10] net: dsa: microchip: Use PORT_CTRL_ADDR() instead of indirect function call

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 for Android: free password hash cracker in your pocket

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

Message-Id: <20190625234348.16246-6-marex@denx.de>
Date:   Wed, 26 Jun 2019 01:43:43 +0200
From:   Marek Vasut <marex@...x.de>
To:     netdev@...r.kernel.org
Cc:     Marek Vasut <marex@...x.de>, Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Tristram Ha <Tristram.Ha@...rochip.com>,
        Woojung Huh <Woojung.Huh@...rochip.com>
Subject: [PATCH V4 05/10] net: dsa: microchip: Use PORT_CTRL_ADDR() instead of indirect function call

The indirect function call to dev->dev_ops->get_port_addr() is expensive
especially if called for every single register access, and only returns
the value of PORT_CTRL_ADDR() macro. Use PORT_CTRL_ADDR() macro directly
instead.

Signed-off-by: Marek Vasut <marex@...x.de>
Cc: Andrew Lunn <andrew@...n.ch>
Cc: Florian Fainelli <f.fainelli@...il.com>
Cc: Tristram Ha <Tristram.Ha@...rochip.com>
Cc: Woojung Huh <Woojung.Huh@...rochip.com>
---
V2: New patch
V3: - Rebase on next/master
    - Test on KSZ9477EVB
V4: No change
---
 drivers/net/dsa/microchip/ksz9477.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c
index e8b96566abd9..7d209fd9f26f 100644
--- a/drivers/net/dsa/microchip/ksz9477.c
+++ b/drivers/net/dsa/microchip/ksz9477.c
@@ -83,7 +83,7 @@ static void ksz_port_cfg(struct ksz_device *dev, int port, int offset, u8 bits,
 	u32 addr;
 	u8 data;
 
-	addr = dev->dev_ops->get_port_addr(port, offset);
+	addr = PORT_CTRL_ADDR(port, offset);
 	ksz_read8(dev, addr, &data);
 
 	if (set)
-- 
2.20.1