diff options
| author | Justin Chen <justinpopo6@gmail.com> | 2017-09-27 17:15:15 -0700 |
|---|---|---|
| committer | James Hogan <jhogan@kernel.org> | 2018-03-05 23:35:04 +0000 |
| commit | 06a3f0c9f2725f5d7c63c4203839373c9bd00c28 (patch) | |
| tree | 243ec62f917b16c1fd1bd8313487cb7d89f6b4ce /arch/mips/kernel/irq-gt641xx.c | |
| parent | ee2515d95f9a12e04a3863916ae45831438210ce (diff) | |
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>
Diffstat (limited to 'arch/mips/kernel/irq-gt641xx.c')
0 files changed, 0 insertions, 0 deletions