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coresight: trbe: Fix incorrect access of the sink specific data

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commit bb5293e334 upstream.

The TRBE driver wrongly treats the aux private data as the TRBE driver
specific buffer for a given perf handle, while it is the ETM PMU's
event specific data. Fix this by correcting the instance to use
appropriate helper.

Cc: stable <stable@vger.kernel.org>
Fixes: 3fbf7f011f ("coresight: sink: Add TRBE driver")
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Link: https://lore.kernel.org/r/20210921134121.2423546-2-suzuki.poulose@arm.com
[Fixed 13 character SHA down to 12]
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Suzuki K Poulose 2021-09-21 14:41:05 +01:00 committed by Greg Kroah-Hartman
parent d27fc5ba46
commit ea64104287
1 changed files with 1 additions and 1 deletions
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2
drivers/hwtracing/coresight/coresight-trbe.c
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@ -366,7 +366,7 @@ static unsigned long __trbe_normal_offset(struct perf_output_handle *handle)
static unsigned long trbe_normal_offset(struct perf_output_handle *handle)
{
struct trbe_buf *buf = perf_get_aux(handle);
struct trbe_buf *buf = etm_perf_sink_config(handle);
u64 limit = __trbe_normal_offset(handle);
u64 head = PERF_IDX2OFF(handle->head, buf);