Heiner Kallweit says:
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r8169: create function pointer arrays for PHY and chip hw init functions
Using function pointer arrays makes the code easier to read and better
maintainable. AFAIK function pointer arrays cause some performance
drawback due to Spectre mitigation, but we're not in a hot path.
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Signed-off-by: David S. Miller <davem@davemloft.net>