[PATCH v1 1/4] coresight: etm4x: Add lock for reading virtual context ID comparator

[Suzuki K Poulose]

Hi Leo

On 31/10/2021 14:42, Leo Yan wrote:
> When read the virtual context ID comparator value via sysfs node, the
> driver firstly reads out the index, then reads the comparator value
> based on index. >
> This patch adds the spinlock to protect the atomicity for up two steps.

minor nit: This could be :

"Updates to the values and the index are protected via the
spinlock. Ensure we use the same lock to read the value
safely"

With that:

Reviewed-by: Suzuki K Poulose <suzuki.poulose at arm.com>