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lib: assert if someone adds to nexthop list to nhg

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If someone tries to add a nexthop with a list of nexthops
already attached to it, let's just assert. This standardizes
the API to say we assume this is an individual nexthop
you are appending to a group.

Signed-off-by: Stephen Worley <sworley@cumulusnetworks.com>
This commit is contained in:
Stephen Worley 2020-01-13 14:28:29 -05:00
parent 1d049aba72
commit 89ca64c90a
1 changed files with 3 additions and 2 deletions
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5
lib/nexthop_group.c
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@ -250,8 +250,7 @@ static void _nexthop_add_sorted(struct nexthop **head,
{
struct nexthop *position, *prev;
/* Ensure this gets set */
nexthop->next = NULL;
assert(!nexthop->next);
for (position = *head, prev = NULL; position;
prev = position, position = position->next) {
@ -281,6 +280,8 @@ void nexthop_group_add_sorted(struct nexthop_group *nhg,
{
struct nexthop *tail;
assert(!nexthop->next);
/* Try to just append to the end first;
* trust the list is already sorted
*/