diff options
| author | Julian Wiedmann <jwi@linux.ibm.com> | 2019-04-25 18:26:01 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-04-26 11:14:06 -0400 |
| commit | 14a1b04777b6cc1df50cd0587c5db22badd7f4d7 (patch) | |
| tree | d39e180fad8ad1f84264c662b4cb52c7a1ca2d10 /drivers/s390 | |
| parent | 58aa2491aa615d9618ffc764cc3eaf689053c7a9 (diff) | |
| download | linux-14a1b04777b6cc1df50cd0587c5db22badd7f4d7.tar.bz2 | |
s390/qeth: trust non-IP cast type in qeth_l3_fill_header()
When building the L3 HW header for non-IP packets, trust the cast type
that was passed as parameter. qeth_l3_get_cast_type() has most likely
also used h_dest to determine the cast type, so we get the same
result, and can remove that duplicated code.
In the unlikely case that we would get a _different_ cast type, then
that's based off a route lookup and should be considered authoritative.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/net/qeth_l3_main.c | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c index b5d76ebb488a..0271833da6a2 100644 --- a/drivers/s390/net/qeth_l3_main.c +++ b/drivers/s390/net/qeth_l3_main.c @@ -1976,19 +1976,14 @@ static void qeth_l3_fill_header(struct qeth_qdio_out_q *queue, hdr->hdr.l3.vlan_id = ntohs(veth->h_vlan_TCI); } + l3_hdr->flags = qeth_l3_cast_type_to_flag(cast_type); + /* OSA only: */ if (!ipv) { - hdr->hdr.l3.flags = QETH_HDR_PASSTHRU; - if (ether_addr_equal_64bits(eth_hdr(skb)->h_dest, - skb->dev->broadcast)) - hdr->hdr.l3.flags |= QETH_CAST_BROADCAST; - else - hdr->hdr.l3.flags |= (cast_type == RTN_MULTICAST) ? - QETH_CAST_MULTICAST : QETH_CAST_UNICAST; + l3_hdr->flags |= QETH_HDR_PASSTHRU; return; } - hdr->hdr.l3.flags = qeth_l3_cast_type_to_flag(cast_type); rcu_read_lock(); if (ipv == 4) { struct rtable *rt = skb_rtable(skb); |