1MDIOBUS_READ_NESTED(9)      Network device support      MDIOBUS_READ_NESTED(9)
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NAME

6       mdiobus_read_nested - Nested version of the mdiobus_read function
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SYNOPSIS

9       int mdiobus_read_nested(struct mii_bus * bus, int addr, u32 regnum);
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ARGUMENTS

12       bus
13           the mii_bus struct
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15       addr
16           the phy address
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18       regnum
19           register number to read
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DESCRIPTION

22       In case of nested MDIO bus access avoid lockdep false positives by
23       using mutex_lock_nested.
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NOTE

26       MUST NOT be called from interrupt context, because the bus read/write
27       functions may wait for an interrupt to conclude the operation.
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30Kernel Hackers Manual 3.10         June 2019            MDIOBUS_READ_NESTED(9)
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