Hi Konstantin, On 12/11/2014 12:49 PM, Konstantin Ananyev wrote: > For rte_ipv6_phdr_cksum() gcc 4.8.* with "-O3" not always generates > correct code. > Sometimes it 'forgets' to put len and proto fields of psd_header on the stack. > To overcome that problem and speedup things a bit, refactored rte_raw_cksum() > by splitting ipv6 pseudo-header csum calculation into 3 phases: > 1. calc sum for src & dst addresses > 2. add sum for proto & len. > 3. finalise sum > That makes gcc to generate valid code and helps to avoid any copying. > > Signed-off-by: Konstantin Ananyev <konstantin.ananyev at intel.com>
Acked-by: Olivier Matz <olivier.matz at 6wind.com>