net: stmmac: selftests: Prevent false positives in filter tests

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In L2 tests that filter packets by destination MAC address we need to
prevent false positives that can occur if we add an address that
collides with the existing ones.

To fix this, lets manually check if the new address to be added is
already present in the NIC and use a different one if so. For Hash
filtering this also envolves converting the address to the hash.

Fixes: 091810dbde ("net: stmmac: Introduce selftests support")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Jose Abreu 2019-11-06 16:02:57 +01:00 • committed by David S. Miller

parent 3d00e45d49

commit eeb9d74516

1 changed files with 94 additions and 40 deletions

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drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c

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