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Move check for parent_if_index up

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copy review change from mgsmith@
This commit is contained in:
Pim van Pelt
2021-09-07 22:10:44 +00:00
parent fdab236755
commit 36f1ebfdae
1 changed files with 16 additions and 10 deletions
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26
lcpng_interface.c
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@ -812,7 +812,23 @@ lcp_itf_pair_create (u32 phy_sw_if_index, u8 *host_if_name,
"pair_create: createing dot1%s %d inner-dot1q %d on %U",
sw->sub.eth.flags.dot1ad ? "ad" : "q", outer_vlan, inner_vlan,
format_vnet_sw_if_index_name, vnet_get_main (), hw->sw_if_index);
parent_if_index = lcp_itf_pair_find_by_phy (sw->sup_sw_if_index);
if (INDEX_INVALID == parent_if_index)
{
LCP_ITF_PAIR_ERR ("pair_create: can't find LCP for %U",
format_vnet_sw_if_index_name, vnet_get_main (),
sw->sup_sw_if_index);
return VNET_API_ERROR_INVALID_SW_IF_INDEX;
}
lip = lcp_itf_pair_get (parent_if_index);
if (!lip)
{
LCP_ITF_PAIR_ERR ("pair_create: can't create LCP for a "
"sub-interface without an LCP on the parent");
return VNET_API_ERROR_INVALID_ARGUMENT;
}
/*
* Find the parent tap:
* - if this is an outer VLAN, find the pair from the parent phy
@ -836,16 +852,6 @@ lcp_itf_pair_create (u32 phy_sw_if_index, u8 *host_if_name,
linux_parent_if_index = parent_if_index;
}
if (INDEX_INVALID == parent_if_index) {
LCP_ITF_PAIR_ERR ("pair_create: can't find LCP for %U",
format_vnet_sw_if_index_name, vnet_get_main (), sw->sup_sw_if_index);
return VNET_API_ERROR_INVALID_SW_IF_INDEX;
}
lip = lcp_itf_pair_get (parent_if_index);
if (!lip) {
LCP_ITF_PAIR_ERR ("pair_create: can't create LCP for a sub-interface without an LCP on the parent");
return VNET_API_ERROR_INVALID_ARGUMENT;
}
llip = lcp_itf_pair_get (linux_parent_if_index);
if (!llip) {
LCP_ITF_PAIR_ERR ("pair_create: can't create LCP for a sub-interface without a valid Linux parent");