Hi, this series removes or replaces preempt_disable() and local_irq_save() sections which are problematic on PREEMPT_RT. Patch 2 makes netif_rx() work from any context after I found suggestions for it in an old thread. Should that work, then the context-specific variants could be removed. Already sketched the removal at https://git.kernel.org/pub/scm/linux/kernel/git/bigeasy/staging.git/log/?h=nettree v1…v2: - #1 and #2 - merge patch 1 und 2 from the series (as per Toke). - updated patch description and corrected the first commit number (as per Eric). - #2 - Provide netif_rx() as in v1 and additionally __netif_rx() without local_bh disable()+enable() for the loopback driver. __netif_rx() is not exported (loopback is built-in only) so it won't be used drivers. If this doesn't work then we can still export/ define a wrapper as Eric suggested. - Added a comment that netif_rx() considered legacy. - #3 - Moved ____napi_schedule() into rps_ipi_queued() and renamed it napi_schedule_rps(). v1: https://lore.kernel.org/all/20220202122848.647635-1-bigeasy@xxxxxxxxxxxxx Sebastian
