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0780b41456
Jakub pointed out that the IP_ECN_set* helpers basically open-code csum16_add(), so let's switch them over to using the helper instead. v2: - Use __be16 for check_add stack variable in IP_ECN_set_ce() (kbot) v3: - Turns out we need __force casts to do arithmetic on __be16 types Reported-by: Jakub Kicinski <kuba@kernel.org> Tested-by: Jonathan Morton <chromatix99@gmail.com> Tested-by: Pete Heist <pete@heistp.net> Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Link: https://lore.kernel.org/r/20201211142638.154780-1-toke@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>