Stephen Hemminger, Jul 20, 2024 at 22:26:
There is no need for packing or alignment in in6_addr or current DPDK,
what would be the benefit? Compilers generate worse code if
a structure is marked packed.
The only benefit is to maintain current behaviour.
At first, I had not packed nor aligned anything and I had tons of test
errors because the compiler added padding in structures that contained
IPv6 addresses.
I don't want to mix things together. In my opinion, removing that
alignof(1) constraint is an optimization which has nothing to do with
the IPv6 API functional rework.
So my proposal is: add a structure *packed and unaligned* first so that
*all tests are passing*.
And *then*, after the changes have been applied on the main branch and
no critical issues have been reported, see if we need to remove these
packed and unaligned constraints.
