Messages in this thread | | | Date | Wed, 5 May 2021 03:11:36 +0200 | From | Andrew Lunn <> | Subject | Re: [RFC PATCH net-next v3 20/20] net: phy: add qca8k driver for qca8k switch internal PHY |
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> +/* QCA specific MII registers access function */ > +static void qca8k_phy_dbg_write(struct mii_bus *bus, int phy_addr, u16 dbg_addr, u16 dbg_data) > +{ > + mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED); > + bus->write(bus, phy_addr, MII_ATH_DBG_ADDR, dbg_addr); > + bus->write(bus, phy_addr, MII_ATH_DBG_DATA, dbg_data); > + mutex_unlock(&bus->mdio_lock); > +}
What are you locking against here?
Andrew
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