[ovs-dev] [PATCH] Fix extract_ofp_msgs to use HMAP_NODE_NULL_INITIALIZER instead of hard-coding {0, NULL} while creating _instances[] arrays

[Sabyasachi Sengupta]

> This change will cause segfaults if anything ever reaches the end of a
> bucket.

Oh, didn't realize that, but it seems to work fine in my setup. Just 
wondering how it works while initializing all_raw_instances. I'm curious how
would it be different for _instances.