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From:   Suzuki K Poulose <suzuki.poulose@arm.com>
To:     linux-arm-kernel@lists.infradead.org
Cc:     linux-kernel@vger.kernel.org, maz@kernel.org,
        catalin.marinas@arm.com, mark.rutland@arm.com, james.morse@arm.com,
        anshuman.khandual@arm.com, leo.yan@linaro.org,
        mike.leach@linaro.org, mathieu.poirier@linaro.org, will@kernel.org,
        lcherian@marvell.com, coresight@lists.linaro.org,
        Suzuki K Poulose <suzuki.poulose@arm.com>
Subject: [PATCH v2 01/17] coresight: trbe: Fix incorrect access of the sink specific data
Date:   Tue, 21 Sep 2021 14:41:05 +0100
Message-Id: <20210921134121.2423546-2-suzuki.poulose@arm.com>
In-Reply-To: <20210921134121.2423546-1-suzuki.poulose@arm.com>
References: <20210921134121.2423546-1-suzuki.poulose@arm.com>
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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.

Fixes: 3fbf7f011f242 ("coresight: sink: Add TRBE driver")
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
---
 drivers/hwtracing/coresight/coresight-trbe.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwtracing/coresight/coresight-trbe.c b/drivers/hwtracing/coresight/coresight-trbe.c
index d4c57aed05e5..e3d73751d568 100644
--- a/drivers/hwtracing/coresight/coresight-trbe.c
+++ b/drivers/hwtracing/coresight/coresight-trbe.c
@@ -363,7 +363,7 @@ 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);
 
-- 
2.24.1