Due to IF_NAMESIZE being a reused and conditionally defined macro,
issues could arise from macro mismatches. In particular, in cases where
opal/util/if.h is included, but net/if.h is not, IF_NAMESIZE will be 32.
If net/if.h is included on Linux systems, IF_NAMESIZE will be 16. This
can cause a mismatch when using the same macro on a system. Thus
different parts of the code can have differring ideas on the size of a
structure containing a char name[IF_NAMESIZE]. To avoid this error case,
we avoid reusing the IF_NAMESIZE macro and instead define our own as
OPAL_IF_NAMESIZE.
Signed-off-by: William Zhang <wilzhang@amazon.com>
4ebb37a26c