sh_eth: read MAC address registers only once

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The code reading the MAHR/MALR registers in read_mac_address() is terribly
ineffective -- it reads MAHR 4 times and MALR 2 times, while it's enough to
read each register only once.  Use the local variables to achieve that,
somewhat beautifying the code while at it...

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

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Sergei Shtylyov 2015-12-05 00:58:57 +03:00 • committed by David S. Miller

parent d966063897

commit 37742f028b

1 changed files with 9 additions and 6 deletions

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drivers/net/ethernet/renesas/sh_eth.c

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