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authorJustin Chen <justinpopo6@gmail.com>2017-09-27 17:15:15 -0700
committerJames Hogan <jhogan@kernel.org>2018-03-05 23:35:04 +0000
commit06a3f0c9f2725f5d7c63c4203839373c9bd00c28 (patch)
tree243ec62f917b16c1fd1bd8313487cb7d89f6b4ce /include/linux
parentee2515d95f9a12e04a3863916ae45831438210ce (diff)
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MIPS: BMIPS: Do not mask IPIs during suspend
Commit a3e6c1eff548 ("MIPS: IRQ: Fix disable_irq on CPU IRQs") fixes an issue where disable_irq did not actually disable the irq. The bug caused our IPIs to not be disabled, which actually is the correct behavior. With the addition of commit a3e6c1eff548 ("MIPS: IRQ: Fix disable_irq on CPU IRQs"), the IPIs were getting disabled going into suspend, thus schedule_ipi() was not being called. This caused deadlocks where schedulable task were not being scheduled and other cpus were waiting for them to do something. Add the IRQF_NO_SUSPEND flag so an irq_disable will not be called on the IPIs during suspend. Signed-off-by: Justin Chen <justinpopo6@gmail.com> Fixes: a3e6c1eff548 ("MIPS: IRQ: Fix disabled_irq on CPU IRQs") Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: linux-mips@linux-mips.org Cc: stable@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/17385/ [jhogan@kernel.org: checkpatch: wrap long lines and fix commit refs] Signed-off-by: James Hogan <jhogan@kernel.org>
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