[PATCH 11/11] coresight: Replace deprecated CPU-hotplug functions.

From: Mathieu Poirier
Date: Wed Aug 18 2021 - 15:41:39 EST

From: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>

The functions get_online_cpus() and put_online_cpus() have been
deprecated during the CPU hotplug rework. They map directly to
cpus_read_lock() and cpus_read_unlock().

Replace deprecated CPU-hotplug functions with the official version.
The behavior remains unchanged.

Cc: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
Cc: Suzuki K Poulose <suzuki.poulose@xxxxxxx>
Cc: Mike Leach <mike.leach@xxxxxxxxxx>
Cc: Leo Yan <leo.yan@xxxxxxxxxx>
Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Cc: coresight@xxxxxxxxxxxxxxxx
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20210803141621.780504-15-bigeasy@xxxxxxxxxxxxx
Signed-off-by: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
drivers/hwtracing/coresight/coresight-cpu-debug.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-cpu-debug.c b/drivers/hwtracing/coresight/coresight-cpu-debug.c
index 9731d3a96073..00de46565bc4 100644
--- a/drivers/hwtracing/coresight/coresight-cpu-debug.c
+++ b/drivers/hwtracing/coresight/coresight-cpu-debug.c
@@ -588,11 +588,11 @@ static int debug_probe(struct amba_device *adev, const struct amba_id *id)

drvdata->base = base;

- get_online_cpus();
+ cpus_read_lock();
per_cpu(debug_drvdata, drvdata->cpu) = drvdata;
ret = smp_call_function_single(drvdata->cpu, debug_init_arch_data,
drvdata, 1);
- put_online_cpus();
+ cpus_read_unlock();

if (ret) {
dev_err(dev, "CPU%d debug arch init failed\n", drvdata->cpu);