linux-kernel - [PATCHv3 0/1] coresight: Do not default to CPU0 for missing CPU phandle

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Message-Id: <cover.1561346998.git.saiprakash.ranjan@codeaurora.org>
Date:   Mon, 24 Jun 2019 09:06:08 +0530
From:   Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>
To:     Mathieu Poirier <mathieu.poirier@...aro.org>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Leo Yan <leo.yan@...aro.org>, Rob Herring <robh+dt@...nel.org>,
        devicetree@...r.kernel.org,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Andy Gross <andy.gross@...aro.org>,
        David Brown <david.brown@...aro.org>,
        Mark Rutland <mark.rutland@....com>
Cc:     Rajendra Nayak <rnayak@...eaurora.org>,
        Vivek Gautam <vivek.gautam@...eaurora.org>,
        Sibi Sankar <sibis@...eaurora.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org,
        Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>
Subject: [PATCHv3 0/1] coresight: Do not default to CPU0 for missing CPU phandle

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.

v3:
 * Addressed review comments from Suzuki and updated
   acpi_coresight_get_cpu.
 * Removed patch 2 which had invalid check for online
   cpus.

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 (1):
  coresight: Do not default to CPU0 for missing CPU phandle

 .../bindings/arm/coresight-cpu-debug.txt         |  4 ++--
 .../devicetree/bindings/arm/coresight.txt        |  8 +++++---
 .../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 | 16 ++++++++--------
 6 files changed, 24 insertions(+), 13 deletions(-)

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