[PATCH 2/3] coresight: Add coresight slave register driver to support data filter function in sysfs mode

[Markus Elfring]

…
> +++ b/drivers/hwtracing/coresight/coresight-csr.c
> @@ -0,0 +1,315 @@
…
> +static int __csr_set_etr_traceid(struct coresight_device *csdev,
> +			uint32_t atid_offset, uint32_t traceid,
> +			bool enable)
> +{
…
> +	spin_lock_irqsave(&drvdata->spin_lock, flags);
> +	CS_UNLOCK(drvdata->base);
…
> +	CS_LOCK(drvdata->base);
> +	spin_unlock_irqrestore(&drvdata->spin_lock, flags);
> +	return 0;
> +}
…

Would you become interested to apply a statement like “guard(spinlock_irqsave)(&drvdata->spin_lock);”?
https://elixir.bootlin.com/linux/v6.10-rc4/source/include/linux/spinlock.h#L574

Regards,
Markus