igc: Refactor igc_mac_entry_can_be_used()

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The helper igc_mac_entry_can_be_used() implementation is a bit
convoluted since it does two different things: find a not-in-use slot
in mac_table or find an in-use slot where the address and address type
match. This patch does a code refactoring and break it up into two
helper functions.

With this patch we might traverse mac_table twice in some situations,
but this is not harmful performance-wise (mac_table has only 16 entries
and adding mac filters is not hot-path), and it improves igc_add_mac_
filter() readability considerably.

Signed-off-by: Andre Guedes <andre.guedes@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

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Andre Guedes 2020-03-18 16:01:00 -07:00 • committed by Jeff Kirsher

parent 83ba21b9ef

commit 794e5bc817

1 changed files with 47 additions and 33 deletions

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drivers/net/ethernet/intel/igc/igc_main.c

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