From 50684da7427b3c36ce0ccf89814df28d9dbe3fe4 Mon Sep 17 00:00:00 2001 From: Heiner Kallweit Date: Sat, 9 Feb 2019 09:46:53 +0100 Subject: [PATCH] net: phy: remove unneeded masking of PHY register read results PHY registers are only 16 bits wide, therefore, if the read was successful, there's no need to mask out the higher 16 bits. Signed-off-by: Heiner Kallweit Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller --- drivers/net/phy/phy_device.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index d4fc1fd8af41..31f9e7c491a1 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -676,13 +676,13 @@ static int get_phy_c45_devs_in_pkg(struct mii_bus *bus, int addr, int dev_addr, phy_reg = mdiobus_read(bus, addr, reg_addr); if (phy_reg < 0) return -EIO; - *devices_in_package = (phy_reg & 0xffff) << 16; + *devices_in_package = phy_reg << 16; reg_addr = MII_ADDR_C45 | dev_addr << 16 | MDIO_DEVS1; phy_reg = mdiobus_read(bus, addr, reg_addr); if (phy_reg < 0) return -EIO; - *devices_in_package |= (phy_reg & 0xffff); + *devices_in_package |= phy_reg; /* Bit 0 doesn't represent a device, it indicates c22 regs presence */ *devices_in_package &= ~BIT(0); @@ -746,13 +746,13 @@ static int get_phy_c45_ids(struct mii_bus *bus, int addr, u32 *phy_id, phy_reg = mdiobus_read(bus, addr, reg_addr); if (phy_reg < 0) return -EIO; - c45_ids->device_ids[i] = (phy_reg & 0xffff) << 16; + c45_ids->device_ids[i] = phy_reg << 16; reg_addr = MII_ADDR_C45 | i << 16 | MII_PHYSID2; phy_reg = mdiobus_read(bus, addr, reg_addr); if (phy_reg < 0) return -EIO; - c45_ids->device_ids[i] |= (phy_reg & 0xffff); + c45_ids->device_ids[i] |= phy_reg; } *phy_id = 0; return 0; @@ -789,14 +789,14 @@ static int get_phy_id(struct mii_bus *bus, int addr, u32 *phy_id, return (phy_reg == -EIO || phy_reg == -ENODEV) ? -ENODEV : -EIO; } - *phy_id = (phy_reg & 0xffff) << 16; + *phy_id = phy_reg << 16; /* Grab the bits from PHYIR2, and put them in the lower half */ phy_reg = mdiobus_read(bus, addr, MII_PHYSID2); if (phy_reg < 0) return -EIO; - *phy_id |= (phy_reg & 0xffff); + *phy_id |= phy_reg; return 0; } -- 2.30.2