memcpy uses value of mls (mpls label stack) instead of address

[Ramanathan Selvamani]

Hi Team,

I have tried to use mpls_label_stack to keep some meta data for each route.
But the values of meta data were not copied correctly.

I just found the below code in "rt_next_hop_update_rte" function in
rt-table.c

memcpy(*mls.**stack*, &a->nh.label[a->nh.labels - mls.len], mls.len * sizeof
(u32));

Here the "mls.stack" is passed directly instead of its address in memcpy.

Kindly let me know your thoughts on this.

Thanks,
Ramanathan
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