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From: Suzuki K Poulose <suzuki.poulose@arm.com>
To: linux-arm-kernel@lists.infradead.org
Cc: coresight@lists.linaro.org, leo.yan@linaro.org,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	mathieu.poirier@linaro.org, mike.leach@linaro.org
Subject: [PATCH 1/3] coresight: Pass coresight_device for coresight_release_platform_data
Date: Thu, 30 May 2019 17:44:55 +0100	[thread overview]
Message-ID: <1559234697-15743-2-git-send-email-suzuki.poulose@arm.com> (raw)
In-Reply-To: <1559234697-15743-1-git-send-email-suzuki.poulose@arm.com>

As we prepare to expose the links between the devices in
sysfs, pass the coresight_device instance to the
coresight_release_platform_data in order to free up the connections
when the device is removed.

No functional changes as such in this patch.

Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
---
 drivers/hwtracing/coresight/coresight-platform.c | 2 +-
 drivers/hwtracing/coresight/coresight-priv.h     | 3 ++-
 drivers/hwtracing/coresight/coresight.c          | 7 ++++---
 3 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-platform.c b/drivers/hwtracing/coresight/coresight-platform.c
index 6fef873..ea03dc8 100644
--- a/drivers/hwtracing/coresight/coresight-platform.c
+++ b/drivers/hwtracing/coresight/coresight-platform.c
@@ -804,7 +804,7 @@ coresight_get_platform_data(struct device *dev)
 error:
 	if (!IS_ERR_OR_NULL(pdata))
 		/* Cleanup the connection information */
-		coresight_release_platform_data(pdata);
+		coresight_release_platform_data(NULL, pdata);
 	return ERR_PTR(ret);
 }
 EXPORT_SYMBOL_GPL(coresight_get_platform_data);
diff --git a/drivers/hwtracing/coresight/coresight-priv.h b/drivers/hwtracing/coresight/coresight-priv.h
index 8b07fe5..ae01250 100644
--- a/drivers/hwtracing/coresight/coresight-priv.h
+++ b/drivers/hwtracing/coresight/coresight-priv.h
@@ -200,7 +200,8 @@ static inline void *coresight_get_uci_data(const struct amba_id *id)
 	return 0;
 }
 
-void coresight_release_platform_data(struct coresight_platform_data *pdata);
+void coresight_release_platform_data(struct coresight_device *csdev,
+				     struct coresight_platform_data *pdata);
 
 int coresight_device_fwnode_match(struct device *dev, void *fwnode);
 
diff --git a/drivers/hwtracing/coresight/coresight.c b/drivers/hwtracing/coresight/coresight.c
index 86d1fc2..05a869b 100644
--- a/drivers/hwtracing/coresight/coresight.c
+++ b/drivers/hwtracing/coresight/coresight.c
@@ -1175,7 +1175,8 @@ postcore_initcall(coresight_init);
  * coresight_release_platform_data: Release references to the devices connected
  * to the output port of this device.
  */
-void coresight_release_platform_data(struct coresight_platform_data *pdata)
+void coresight_release_platform_data(struct coresight_device *csdev,
+				     struct coresight_platform_data *pdata)
 {
 	int i;
 
@@ -1277,7 +1278,7 @@ struct coresight_device *coresight_register(struct coresight_desc *desc)
 	kfree(csdev);
 err_out:
 	/* Cleanup the connection information */
-	coresight_release_platform_data(desc->pdata);
+	coresight_release_platform_data(NULL, desc->pdata);
 	return ERR_PTR(ret);
 }
 EXPORT_SYMBOL_GPL(coresight_register);
@@ -1287,7 +1288,7 @@ void coresight_unregister(struct coresight_device *csdev)
 	etm_perf_del_symlink_sink(csdev);
 	/* Remove references of that device in the topology */
 	coresight_remove_conns(csdev);
-	coresight_release_platform_data(csdev->pdata);
+	coresight_release_platform_data(csdev, csdev->pdata);
 	device_unregister(&csdev->dev);
 }
 EXPORT_SYMBOL_GPL(coresight_unregister);
-- 
2.7.4


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  reply	other threads:[~2019-05-30 16:45 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-30 16:44 [PATCH 0/3] coresight: Expose device connections via sysfs Suzuki K Poulose
2019-05-30 16:44 ` Suzuki K Poulose [this message]
2019-05-30 16:44 ` [PATCH 2/3] coresight: add return value for fixup connections Suzuki K Poulose
2019-05-30 16:44 ` [PATCH 3/3] coresight: Expose device connections via sysfs Suzuki K Poulose
2019-06-03  8:45 ` [PATCH 0/3] " Leo Yan

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