ctdb-common: Avoid aliasing errors during code optimization
When compiling with GCC 10.x and -O3 optimization, the IP checksum
calculation code generates wrong checksum. The function uint16_checksum
gets inlined during optimization and ip4pkt->tcp data gets wrongly
aliased.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14537
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Autobuild-User(master): Martin Schwenke <martins@samba.org>
Autobuild-Date(master): Wed Oct 21 05:52:28 UTC 2020 on sn-devel-184