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net: dsa: Error out on tagging protocol mismatches

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If there is a mismatch between enabled tagging protocols and the
protocol the switch supports, error out, rather than continue with a
situation which is unlikely to work.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
cc: alexander.h.duyck@intel.com
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andrew Lunn 2014-10-24 23:44:04 +02:00 committed by David S. Miller
parent f89b7755f5
commit ae439286a0
1 changed files with 4 additions and 1 deletions
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5
net/dsa/dsa.c
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@ -174,8 +174,11 @@ dsa_switch_setup(struct dsa_switch_tree *dst, int index,
dst->rcv = brcm_netdev_ops.rcv; dst->rcv = brcm_netdev_ops.rcv;
break; break;
#endif #endif
default: case DSA_TAG_PROTO_NONE:
break; break;
default:
ret = -ENOPROTOOPT;
goto out;
} }
dst->tag_protocol = drv->tag_protocol; dst->tag_protocol = drv->tag_protocol;