net: stmmac: Fix VLAN filtering when HW does not support it

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If we don't have any filters available we can't rely upon the return
code of stmmac_add_hw_vlan_rx_fltr() / stmmac_del_hw_vlan_rx_fltr(). Add
a check for this.

Fixes: ed64639bc1 ("net: stmmac: Add support for VLAN Rx filtering")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Jose Abreu 2020-04-01 19:29:03 +02:00 • committed by David S. Miller

parent cc213f8c47

commit dd6a4998e6

1 changed files with 12 additions and 5 deletions

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17

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

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