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vhost: fix MTU device feature check

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The MTU feature support check has to be done against MTU
feature bit mask, and not bit position.

Fixes: 72e8543093 ("vhost: add API to get MTU value")
Cc: stable@dpdk.org

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Jianfeng Tan <jianfeng.tan@intel.com>
Acked-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
This commit is contained in:
Maxime Coquelin 2017-06-29 09:58:10 +02:00 committed by Yuanhan Liu
parent c665d9a231
commit 02f62392ff
1 changed files with 1 additions and 1 deletions
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2
lib/librte_vhost/vhost.c
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@ -272,7 +272,7 @@ rte_vhost_get_mtu(int vid, uint16_t *mtu)
if (!(dev->flags & VIRTIO_DEV_READY))
return -EAGAIN;
if (!(dev->features & VIRTIO_NET_F_MTU))
if (!(dev->features & (1ULL << VIRTIO_NET_F_MTU)))
return -ENOTSUP;
*mtu = dev->mtu;