In case of missing CPU phandle, the affinity is set default to CPU0 which is not a correct assumption. Fix this in coresight platform to set affinity to invalid and abort the probe in drivers. Also update the dt-bindings accordingly.
Patch 2 allows the probe of coresight etm and cpu-debug to abort earlier in case cpus are not available. v2: * Addressed review comments from Suzuki and Mathieu. * Allows the probe of etm and cpu-debug to abort earlier in case of unavailability of respective cpus. Sai Prakash Ranjan (2): coresight: Do not default to CPU0 for missing CPU phandle coresight: Abort probe if cpus are not available Documentation/devicetree/bindings/arm/coresight.txt | 2 +- drivers/hwtracing/coresight/coresight-cpu-debug.c | 3 +++ drivers/hwtracing/coresight/coresight-etm3x.c | 3 +++ drivers/hwtracing/coresight/coresight-etm4x.c | 3 +++ drivers/hwtracing/coresight/coresight-platform.c | 13 ++++++++----- 5 files changed, 18 insertions(+), 6 deletions(-) -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation
