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From: Yeoreum Yun <yeoreum.yun@arm.com>
To: suzuki.poulose@arm.com, mike.leach@linaro.org,
	james.clark@linaro.org, alexander.shishkin@linux.intel.com
Cc: coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/4] small fix for configuaring etm csdev via sysfs
Date: Fri, 2 May 2025 11:53:44 +0100	[thread overview]
Message-ID: <aBSkOGdRygbhTym4@e129823.arm.com> (raw)
In-Reply-To: <20241221165934.1161856-1-yeoreum.yun@arm.com>

Gentle ping in case of forgotten.

> when etm csdev's configuration is modified via sysfs while etm is being
> enabled via perf, enabled etm could run with different configuration
> from perf_event.
>
> Also, there are some redeundant usage of drvdata->spinlock in
> etm_starting/dying_cpu() with enable/disable etm device.
>
> This patchset fixes above small problems.
>
> NOTE:
>    This patchset based on:
>      - https://lore.kernel.org/linux-arm-kernel/20241220104521.809071-1-yeoreum.yun@arm.com/
>
> Yeoreum Yun (4):
>   coresight/etm4x: disallow altering config via sysfs while enabled
>   coresight/etm4x: remove redundant usage of drvdata->spinlock
>   coresight/etm3x: disallow altering config via sysfs while enabled
>   coresight/etm3x: remove redundant usage of drvdata->spinlock
>
>  .../coresight/coresight-etm3x-core.c          |  33 ++---
>  .../coresight/coresight-etm3x-sysfs.c         | 120 ++++++++++++++++
>  .../coresight/coresight-etm4x-core.c          |  20 +--
>  .../coresight/coresight-etm4x-sysfs.c         | 132 +++++++++++++++++-
>  4 files changed, 272 insertions(+), 33 deletions(-)
>
> --
> LEVI:{C3F47F37-75D8-414A-A8BA-3980EC8A46D7}
>

--
Sincerely,
Yeoreum Yun

      parent reply	other threads:[~2025-05-02 10:54 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-12-21 16:59 [PATCH 0/4] small fix for configuaring etm csdev via sysfs Yeoreum Yun
2024-12-21 16:59 ` [PATCH 1/4] coresight/etm4x: disallow altering config via sysfs while enabled Yeoreum Yun
2025-01-09 11:46   ` Suzuki K Poulose
2025-01-09 12:01     ` Yeoreum Yun
2025-01-09 12:21       ` Suzuki K Poulose
2025-01-09 12:27         ` Yeoreum Yun
2025-01-09 17:39         ` Yeoreum Yun
2025-01-09 17:48           ` Yeo Reum Yun
2025-03-12  6:45             ` Yeo Reum Yun
2024-12-21 16:59 ` [PATCH 2/4] coresight/etm4x: remove redundant usage of drvdata->spinlock Yeoreum Yun
2024-12-21 16:59 ` [PATCH 3/4] coresight/etm3x: disallow altering config via sysfs while enabled Yeoreum Yun
2024-12-21 16:59 ` [PATCH 4/4] coresight/etm3x: remove redundant usage of drvdata->spinlock Yeoreum Yun
2024-12-31 14:39 ` [PATCH 0/4] small fix for configuaring etm csdev via sysfs Yeo Reum Yun
2025-05-02 10:53 ` Yeoreum Yun [this message]

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