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Date: Wed, 13 Jan 2021 15:50:23 -0800 From: Jakub Kicinski <kuba@...nel.org> To: Sebastien Laveze <sebastien.laveze@....nxp.com> Cc: Giuseppe Cavallaro <peppe.cavallaro@...com>, Alexandre Torgue <alexandre.torgue@...com>, Jose Abreu <joabreu@...opsys.com>, "David S . Miller" <davem@...emloft.net>, Maxime Coquelin <mcoquelin.stm32@...il.com>, netdev@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, linux-rt-users@...r.kernel.org Subject: Re: [PATCH net] net: stmmac: use __napi_schedule() for PREEMPT_RT On Tue, 12 Jan 2021 15:01:22 +0100 Sebastien Laveze wrote: > From: Seb Laveze <sebastien.laveze@....com> > > Use of __napi_schedule_irqoff() is not safe with PREEMPT_RT in which > hard interrupts are not disabled while running the threaded interrupt. > > Using __napi_schedule() works for both PREEMPT_RT and mainline Linux, > just at the cost of an additional check if interrupts are disabled for > mainline (since they are already disabled). > > Similar to the fix done for enetc: > 215602a8d212 ("enetc: use napi_schedule to be compatible with PREEMPT_RT") > > Signed-off-by: Seb Laveze <sebastien.laveze@....com> Fixed up the commit message to appease checkpatch and applied, thanks!
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