net: stmmac: xgmac: Only get SPH header len if available
authorJose Abreu <Jose.Abreu@synopsys.com>
Wed, 6 Nov 2019 15:02:58 +0000 (16:02 +0100)
committerDavid S. Miller <davem@davemloft.net>
Thu, 7 Nov 2019 05:22:55 +0000 (21:22 -0800)
commit96147375d49f9b523e6462992ddcfb753835c42f
treefee4804982e757070ad0701d78bd67638aaee9d6
parenteeb9d745169847ecde4aa311eb618beb984629b0
net: stmmac: xgmac: Only get SPH header len if available

Split Header length is only available when L34T == 0. Fix this by
correctly checking if L34T is zero before trying to get Header length.

Fixes: 67afd6d1cfdf ("net: stmmac: Add Split Header support and enable it in XGMAC cores")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c