diff options
| author |   Suzuki K Poulose <suzuki.poulose@arm.com> | 2018-09-20 13:17:56 -0600 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-09-25 20:09:18 +0200 |
| commit | 3d6e8935758392179645e1b105789b3da329ad38 (patch) | |
| tree | 185757d4c134f327f7cf817e74b9573e664ecfba /drivers/hwtracing/coresight/coresight-tpiu.c | |
| parent | coresight: perf: Add helper to retrieve sink configuration (diff) | |
| download | linux-dev-3d6e8935758392179645e1b105789b3da329ad38.tar.xz linux-dev-3d6e8935758392179645e1b105789b3da329ad38.zip | |
coresight: perf: Remove set_buffer call back
In coresight perf mode, we need to prepare the sink before
starting a session, which is done via set_buffer call back.
We then proceed to enable the tracing. If we fail to start
the session successfully, we leave the sink configuration
unchanged. In order to make the operation atomic and to
avoid yet another call back to clear the buffer, we get
rid of the "set_buffer" call back and pass the buffer details
via enable() call back to the sink.
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hwtracing/coresight/coresight-tpiu.c')
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-tpiu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/hwtracing/coresight/coresight-tpiu.c b/drivers/hwtracing/coresight/coresight-tpiu.c index ce0b84583861..b2f72a1fa402 100644 --- a/drivers/hwtracing/coresight/coresight-tpiu.c +++ b/drivers/hwtracing/coresight/coresight-tpiu.c @@ -68,7 +68,7 @@ static void tpiu_enable_hw(struct tpiu_drvdata *drvdata) CS_LOCK(drvdata->base); } -static int tpiu_enable(struct coresight_device *csdev, u32 mode) +static int tpiu_enable(struct coresight_device *csdev, u32 mode, void *__unused) { struct tpiu_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent); |