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| author | Kuan-Wei Chiu <visitorckw@gmail.com> | 2025-12-02 08:26:13 +0000 |
|---|---|---|
| committer | Suzuki K Poulose <suzuki.poulose@arm.com> | 2026-08-07 10:45:10 +0100 |
| commit | 41fb4e925528aefa4b7a5f76c7f81db99c0d0f38 (patch) | |
| tree | 1898224f2cc9fa30cd2a153e8264b10621fdf5b2 /scripts | |
| parent | 8cdeaa50eae8dad34885515f62559ee83e7e8dda (diff) | |
| download | linux-41fb4e925528aefa4b7a5f76c7f81db99c0d0f38.tar.gz linux-41fb4e925528aefa4b7a5f76c7f81db99c0d0f38.zip | |
coresight: etm3x: Fix cntr_val_show() to match cntr_val_store() behavior
The cntr_val_show() function was intended to print the values of all
counters using a loop. However, due to a buffer overwrite issue with
sprintf(), it effectively only displayed the value of the last counter.
The companion function, cntr_val_store(), allows users to modify a
specific counter selected by 'cntr_idx'. To maintain consistency
between read and write operations and to align with the ETM4x driver
behavior, modify cntr_val_show() to report only the value of the
currently selected counter.
This change removes the loop and the "counter %d:" prefix, printing
only the hexadecimal value. It also adopts sysfs_emit() for standard
sysfs output formatting.
Fixes: a939fc5a71ad ("coresight-etm: add CoreSight ETM/PTM driver")
Cc: stable@vger.kernel.org
Signed-off-by: Kuan-Wei Chiu <visitorckw@gmail.com>
Reviewed-by: James Clark <james.clark@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20251202082613.3265761-1-visitorckw@gmail.com
Diffstat (limited to 'scripts')
0 files changed, 0 insertions, 0 deletions