[PATCH 00/26] coresight: next v4.13-rc3 · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 01/26] coresight: Correct buffer lost increment · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 02/26] coresight: etb10: Remove useless conversion to LE · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 03/26] coresight: Add barrier packet for synchronisation · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 04/26] coresight: etb10: Move etb_disable_hw() outside of lock · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 05/26] coresight: etm3x: Set synchronisation frequencty to TRM default · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 06/26] hwtracing: coresight: constify attribute_group structures. · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 07/26] coresight: pmu: Adds return stack option to perf coresight pmu · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 08/26] coresight: ptm: Adds trace return stack option programming for PTM. · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 09/26] coresight: etm4x: Adds trace return stack option programming for ETMv4. · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 10/26] coresight replicator: Cleanup programmable replicator naming · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 11/26] coresight: Add support for reading 64bit registers · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 12/26] coresight: Use the new helper for defining registers · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 13/26] coresight tmc: Add helpers for accessing 64bit registers · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 14/26] coresight tmc: Expose DBA and AXICTL · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 15/26] coresight replicator: Expose replicator management registers · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 16/26] coresight tmc: Handle configuration types properly · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 17/26] coresight tmc etr: Add capabilitiy information · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 18/26] coresight tmc: Detect support for scatter gather · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 19/26] coresight tmc etr: Detect address width at runtime · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 20/26] coresight tmc etr: Cleanup AXICTL register handling · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 21/26] coresight tmc etr: Setup AXI cache encoding for read transfers · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 22/26] coresight tmc: Support for save-restore in ETR · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 23/26] coresight tmc: Add support for Coresight SoC 600 TMC · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 24/26] coresight: Add support for Coresight SoC 600 components · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 25/26] perf: cs-etm: Fix ETMv4 CONFIGR entry in perf.data file · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 26/26] coresight: STM: Clean up __iomem type usage · mathieu.poirier@linaro.org (Mathieu Poirier) · 2017-08-02
[PATCH 00/26] coresight: next v4.13-rc3 · gregkh@linuxfoundation.org (Greg KH) · 2017-08-28

STALE3262d

[PATCH 04/26] coresight: etb10: Move etb_disable_hw() outside of lock

From: mathieu.poirier@linaro.org (Mathieu Poirier)
Date: 2017-08-02 16:21:58
Subsystem: arm/coresight framework and drivers, hardware tracing facilities, the rest · Maintainers: Suzuki K Poulose, Alexander Shishkin, Linus Torvalds

Function etb_disable_hw() is already taking care of unlocking and locking
the coresight access register and as such doesn't need to be placed
within the unlock/lock of function etb_update_buffer().

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
---
 drivers/hwtracing/coresight/coresight-etb10.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwtracing/coresight/coresight-etb10.c b/drivers/hwtracing/coresight/coresight-etb10.c
index 42360306f049..d0d186575c5d 100644
--- a/drivers/hwtracing/coresight/coresight-etb10.c
+++ b/drivers/hwtracing/coresight/coresight-etb10.c

@@ -376,8 +376,8 @@ static void etb_update_buffer(struct coresight_device *csdev,
 
 	capacity = drvdata->buffer_depth * ETB_FRAME_SIZE_WORDS;
 
-	CS_UNLOCK(drvdata->base);
 	etb_disable_hw(drvdata);
+	CS_UNLOCK(drvdata->base);
 
 	/* unit is in words, not bytes */
 	read_ptr = readl_relaxed(drvdata->base + ETB_RAM_READ_POINTER);

-- 
2.7.4