Given that the 'is_tx = 0' can not be moved in the whole handler due to a possible race concerning the hold off in switching to STATE_RX_AACK_ON in addition to a new interrupt, we introduce an intermediate 'was_tx' boolean only for this reason. There's no Fixes tag applying right here, https://schema-pro15937.glifeblog.com/28067620/top-website-design-service-secrets