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| author |   Marc Zyngier <marc.zyngier@arm.com> | 2017-10-03 18:14:13 +0100 |
|---|---|---|
| committer |   Pawel Moll <pawel.moll@arm.com> | 2017-12-04 16:56:43 +0000 |
| commit | 4608af8aa53e7f3922ddee695d023b7bcd5cb35b (patch) | |
| tree | cb83385efc4205ba08196961b4d9e35283d41974 /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | bus: arm-ccn: Fix use of smp_processor_id() in preemptible context (diff) | |
| download | wireguard-linux-4608af8aa53e7f3922ddee695d023b7bcd5cb35b.tar.xz wireguard-linux-4608af8aa53e7f3922ddee695d023b7bcd5cb35b.zip | |
bus: arm-cci: Fix use of smp_processor_id() in preemptible context
The ARM CCI driver seem to be using smp_processor_id() in a
preemptible context, which is likely to make a DEBUG_PREMPT
kernel scream at boot time.
Turn this into a get_cpu()/put_cpu() that extends over the CPU
hotplug registration, making sure that we don't race against
a CPU down operation.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Cc: stable@vger.kernel.org # 4.2+
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions