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From: Mathieu Poirier <mathieu.poirier@linaro.org>
To: gregkh@linuxfoundation.org
Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH 15/28] coresight: Use local coresight_desc instances
Date: Thu, 25 Aug 2016 15:19:05 -0600	[thread overview]
Message-ID: <1472159958-5981-16-git-send-email-mathieu.poirier@linaro.org> (raw)
In-Reply-To: <1472159958-5981-1-git-send-email-mathieu.poirier@linaro.org>

From: Suzuki K Poulose <suzuki.poulose@arm.com>

Each coresight device prepares a description for coresight_register()
in struct coresight_desc. Once we register the device, the description is
useless and can be freed. The coresight_desc is small enough (48bytes on
64bit)i to be allocated on the stack. Hence use an automatic variable to
avoid a needless dynamic allocation and wasting the memory(which will only
be free'd when the device is destroyed).

Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Pratik Patel <pratikp@codeaurora.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
---
 drivers/hwtracing/coresight/coresight-etb10.c      | 20 ++++++--------
 drivers/hwtracing/coresight/coresight-etm3x.c      | 20 ++++++--------
 drivers/hwtracing/coresight/coresight-etm4x.c      | 20 ++++++--------
 drivers/hwtracing/coresight/coresight-funnel.c     | 20 ++++++--------
 .../coresight/coresight-replicator-qcom.c          | 18 +++++--------
 drivers/hwtracing/coresight/coresight-replicator.c | 20 +++++---------
 drivers/hwtracing/coresight/coresight-stm.c        | 22 ++++++---------
 drivers/hwtracing/coresight/coresight-tmc.c        | 31 ++++++++++------------
 drivers/hwtracing/coresight/coresight-tpiu.c       | 18 +++++--------
 9 files changed, 75 insertions(+), 114 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-etb10.c b/drivers/hwtracing/coresight/coresight-etb10.c
index 3b483e3f00ee..8a4927ca9181 100644
--- a/drivers/hwtracing/coresight/coresight-etb10.c
+++ b/drivers/hwtracing/coresight/coresight-etb10.c
@@ -636,7 +636,7 @@ static int etb_probe(struct amba_device *adev, const struct amba_id *id)
 	struct coresight_platform_data *pdata = NULL;
 	struct etb_drvdata *drvdata;
 	struct resource *res = &adev->res;
-	struct coresight_desc *desc;
+	struct coresight_desc desc = { 0 };
 	struct device_node *np = adev->dev.of_node;
 
 	if (np) {
@@ -682,17 +682,13 @@ static int etb_probe(struct amba_device *adev, const struct amba_id *id)
 		return -ENOMEM;
 	}
 
-	desc = devm_kzalloc(dev, sizeof(*desc), GFP_KERNEL);
-	if (!desc)
-		return -ENOMEM;
-
-	desc->type = CORESIGHT_DEV_TYPE_SINK;
-	desc->subtype.sink_subtype = CORESIGHT_DEV_SUBTYPE_SINK_BUFFER;
-	desc->ops = &etb_cs_ops;
-	desc->pdata = pdata;
-	desc->dev = dev;
-	desc->groups = coresight_etb_groups;
-	drvdata->csdev = coresight_register(desc);
+	desc.type = CORESIGHT_DEV_TYPE_SINK;
+	desc.subtype.sink_subtype = CORESIGHT_DEV_SUBTYPE_SINK_BUFFER;
+	desc.ops = &etb_cs_ops;
+	desc.pdata = pdata;
+	desc.dev = dev;
+	desc.groups = coresight_etb_groups;
+	drvdata->csdev = coresight_register(&desc);
 	if (IS_ERR(drvdata->csdev))
 		return PTR_ERR(drvdata->csdev);
 
diff --git a/drivers/hwtracing/coresight/coresight-etm3x.c b/drivers/hwtracing/coresight/coresight-etm3x.c
index b4f380a9da5c..326afe49251a 100644
--- a/drivers/hwtracing/coresight/coresight-etm3x.c
+++ b/drivers/hwtracing/coresight/coresight-etm3x.c
@@ -756,13 +756,9 @@ static int etm_probe(struct amba_device *adev, const struct amba_id *id)
 	struct coresight_platform_data *pdata = NULL;
 	struct etm_drvdata *drvdata;
 	struct resource *res = &adev->res;
-	struct coresight_desc *desc;
+	struct coresight_desc desc = { 0 };
 	struct device_node *np = adev->dev.of_node;
 
-	desc = devm_kzalloc(dev, sizeof(*desc), GFP_KERNEL);
-	if (!desc)
-		return -ENOMEM;
-
 	drvdata = devm_kzalloc(dev, sizeof(*drvdata), GFP_KERNEL);
 	if (!drvdata)
 		return -ENOMEM;
@@ -825,13 +821,13 @@ static int etm_probe(struct amba_device *adev, const struct amba_id *id)
 	etm_init_trace_id(drvdata);
 	etm_set_default(&drvdata->config);
 
-	desc->type = CORESIGHT_DEV_TYPE_SOURCE;
-	desc->subtype.source_subtype = CORESIGHT_DEV_SUBTYPE_SOURCE_PROC;
-	desc->ops = &etm_cs_ops;
-	desc->pdata = pdata;
-	desc->dev = dev;
-	desc->groups = coresight_etm_groups;
-	drvdata->csdev = coresight_register(desc);
+	desc.type = CORESIGHT_DEV_TYPE_SOURCE;
+	desc.subtype.source_subtype = CORESIGHT_DEV_SUBTYPE_SOURCE_PROC;
+	desc.ops = &etm_cs_ops;
+	desc.pdata = pdata;
+	desc.dev = dev;
+	desc.groups = coresight_etm_groups;
+	drvdata->csdev = coresight_register(&desc);
 	if (IS_ERR(drvdata->csdev)) {
 		ret = PTR_ERR(drvdata->csdev);
 		goto err_arch_supported;
diff --git a/drivers/hwtracing/coresight/coresight-etm4x.c b/drivers/hwtracing/coresight/coresight-etm4x.c
index 3b16f8a9e44d..d8721fb8da99 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x.c
+++ b/drivers/hwtracing/coresight/coresight-etm4x.c
@@ -711,13 +711,9 @@ static int etm4_probe(struct amba_device *adev, const struct amba_id *id)
 	struct coresight_platform_data *pdata = NULL;
 	struct etmv4_drvdata *drvdata;
 	struct resource *res = &adev->res;
-	struct coresight_desc *desc;
+	struct coresight_desc desc = { 0 };
 	struct device_node *np = adev->dev.of_node;
 
-	desc = devm_kzalloc(dev, sizeof(*desc), GFP_KERNEL);
-	if (!desc)
-		return -ENOMEM;
-
 	drvdata = devm_kzalloc(dev, sizeof(*drvdata), GFP_KERNEL);
 	if (!drvdata)
 		return -ENOMEM;
@@ -772,13 +768,13 @@ static int etm4_probe(struct amba_device *adev, const struct amba_id *id)
 	etm4_init_trace_id(drvdata);
 	etm4_set_default(&drvdata->config);
 
-	desc->type = CORESIGHT_DEV_TYPE_SOURCE;
-	desc->subtype.source_subtype = CORESIGHT_DEV_SUBTYPE_SOURCE_PROC;
-	desc->ops = &etm4_cs_ops;
-	desc->pdata = pdata;
-	desc->dev = dev;
-	desc->groups = coresight_etmv4_groups;
-	drvdata->csdev = coresight_register(desc);
+	desc.type = CORESIGHT_DEV_TYPE_SOURCE;
+	desc.subtype.source_subtype = CORESIGHT_DEV_SUBTYPE_SOURCE_PROC;
+	desc.ops = &etm4_cs_ops;
+	desc.pdata = pdata;
+	desc.dev = dev;
+	desc.groups = coresight_etmv4_groups;
+	drvdata->csdev = coresight_register(&desc);
 	if (IS_ERR(drvdata->csdev)) {
 		ret = PTR_ERR(drvdata->csdev);
 		goto err_arch_supported;
diff --git a/drivers/hwtracing/coresight/coresight-funnel.c b/drivers/hwtracing/coresight/coresight-funnel.c
index 05df789056cc..860fe6ef5632 100644
--- a/drivers/hwtracing/coresight/coresight-funnel.c
+++ b/drivers/hwtracing/coresight/coresight-funnel.c
@@ -176,7 +176,7 @@ static int funnel_probe(struct amba_device *adev, const struct amba_id *id)
 	struct coresight_platform_data *pdata = NULL;
 	struct funnel_drvdata *drvdata;
 	struct resource *res = &adev->res;
-	struct coresight_desc *desc;
+	struct coresight_desc desc = { 0 };
 	struct device_node *np = adev->dev.of_node;
 
 	if (np) {
@@ -207,17 +207,13 @@ static int funnel_probe(struct amba_device *adev, const struct amba_id *id)
 	drvdata->base = base;
 	pm_runtime_put(&adev->dev);
 
-	desc = devm_kzalloc(dev, sizeof(*desc), GFP_KERNEL);
-	if (!desc)
-		return -ENOMEM;
-
-	desc->type = CORESIGHT_DEV_TYPE_LINK;
-	desc->subtype.link_subtype = CORESIGHT_DEV_SUBTYPE_LINK_MERG;
-	desc->ops = &funnel_cs_ops;
-	desc->pdata = pdata;
-	desc->dev = dev;
-	desc->groups = coresight_funnel_groups;
-	drvdata->csdev = coresight_register(desc);
+	desc.type = CORESIGHT_DEV_TYPE_LINK;
+	desc.subtype.link_subtype = CORESIGHT_DEV_SUBTYPE_LINK_MERG;
+	desc.ops = &funnel_cs_ops;
+	desc.pdata = pdata;
+	desc.dev = dev;
+	desc.groups = coresight_funnel_groups;
+	drvdata->csdev = coresight_register(&desc);
 	if (IS_ERR(drvdata->csdev))
 		return PTR_ERR(drvdata->csdev);
 
diff --git a/drivers/hwtracing/coresight/coresight-replicator-qcom.c b/drivers/hwtracing/coresight/coresight-replicator-qcom.c
index 700f710e4bfa..0a3d15f0b009 100644
--- a/drivers/hwtracing/coresight/coresight-replicator-qcom.c
+++ b/drivers/hwtracing/coresight/coresight-replicator-qcom.c
@@ -102,7 +102,7 @@ static int replicator_probe(struct amba_device *adev, const struct amba_id *id)
 	struct resource *res = &adev->res;
 	struct coresight_platform_data *pdata = NULL;
 	struct replicator_state *drvdata;
-	struct coresight_desc *desc;
+	struct coresight_desc desc = { 0 };
 	struct device_node *np = adev->dev.of_node;
 	void __iomem *base;
 
@@ -134,16 +134,12 @@ static int replicator_probe(struct amba_device *adev, const struct amba_id *id)
 	dev_set_drvdata(dev, drvdata);
 	pm_runtime_put(&adev->dev);
 
-	desc = devm_kzalloc(dev, sizeof(*desc), GFP_KERNEL);
-	if (!desc)
-		return -ENOMEM;
-
-	desc->type = CORESIGHT_DEV_TYPE_LINK;
-	desc->subtype.link_subtype = CORESIGHT_DEV_SUBTYPE_LINK_SPLIT;
-	desc->ops = &replicator_cs_ops;
-	desc->pdata = adev->dev.platform_data;
-	desc->dev = &adev->dev;
-	drvdata->csdev = coresight_register(desc);
+	desc.type = CORESIGHT_DEV_TYPE_LINK;
+	desc.subtype.link_subtype = CORESIGHT_DEV_SUBTYPE_LINK_SPLIT;
+	desc.ops = &replicator_cs_ops;
+	desc.pdata = adev->dev.platform_data;
+	desc.dev = &adev->dev;
+	drvdata->csdev = coresight_register(&desc);
 	if (IS_ERR(drvdata->csdev))
 		return PTR_ERR(drvdata->csdev);
 
diff --git a/drivers/hwtracing/coresight/coresight-replicator.c b/drivers/hwtracing/coresight/coresight-replicator.c
index c6982e312e15..3756e71cb8f5 100644
--- a/drivers/hwtracing/coresight/coresight-replicator.c
+++ b/drivers/hwtracing/coresight/coresight-replicator.c
@@ -69,7 +69,7 @@ static int replicator_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct coresight_platform_data *pdata = NULL;
 	struct replicator_drvdata *drvdata;
-	struct coresight_desc *desc;
+	struct coresight_desc desc = { 0 };
 	struct device_node *np = pdev->dev.of_node;
 
 	if (np) {
@@ -95,18 +95,12 @@ static int replicator_probe(struct platform_device *pdev)
 	pm_runtime_enable(&pdev->dev);
 	platform_set_drvdata(pdev, drvdata);
 
-	desc = devm_kzalloc(dev, sizeof(*desc), GFP_KERNEL);
-	if (!desc) {
-		ret = -ENOMEM;
-		goto out_disable_pm;
-	}
-
-	desc->type = CORESIGHT_DEV_TYPE_LINK;
-	desc->subtype.link_subtype = CORESIGHT_DEV_SUBTYPE_LINK_SPLIT;
-	desc->ops = &replicator_cs_ops;
-	desc->pdata = pdev->dev.platform_data;
-	desc->dev = &pdev->dev;
-	drvdata->csdev = coresight_register(desc);
+	desc.type = CORESIGHT_DEV_TYPE_LINK;
+	desc.subtype.link_subtype = CORESIGHT_DEV_SUBTYPE_LINK_SPLIT;
+	desc.ops = &replicator_cs_ops;
+	desc.pdata = pdev->dev.platform_data;
+	desc.dev = &pdev->dev;
+	drvdata->csdev = coresight_register(&desc);
 	if (IS_ERR(drvdata->csdev)) {
 		ret = PTR_ERR(drvdata->csdev);
 		goto out_disable_pm;
diff --git a/drivers/hwtracing/coresight/coresight-stm.c b/drivers/hwtracing/coresight/coresight-stm.c
index 482c8bb27f87..819629aed2f7 100644
--- a/drivers/hwtracing/coresight/coresight-stm.c
+++ b/drivers/hwtracing/coresight/coresight-stm.c
@@ -799,7 +799,7 @@ static int stm_probe(struct amba_device *adev, const struct amba_id *id)
 	struct resource *res = &adev->res;
 	struct resource ch_res;
 	size_t res_size, bitmap_size;
-	struct coresight_desc *desc;
+	struct coresight_desc desc = { 0 };
 	struct device_node *np = adev->dev.of_node;
 
 	if (np) {
@@ -865,19 +865,13 @@ static int stm_probe(struct amba_device *adev, const struct amba_id *id)
 		return -EPROBE_DEFER;
 	}
 
-	desc = devm_kzalloc(dev, sizeof(*desc), GFP_KERNEL);
-	if (!desc) {
-		ret = -ENOMEM;
-		goto stm_unregister;
-	}
-
-	desc->type = CORESIGHT_DEV_TYPE_SOURCE;
-	desc->subtype.source_subtype = CORESIGHT_DEV_SUBTYPE_SOURCE_SOFTWARE;
-	desc->ops = &stm_cs_ops;
-	desc->pdata = pdata;
-	desc->dev = dev;
-	desc->groups = coresight_stm_groups;
-	drvdata->csdev = coresight_register(desc);
+	desc.type = CORESIGHT_DEV_TYPE_SOURCE;
+	desc.subtype.source_subtype = CORESIGHT_DEV_SUBTYPE_SOURCE_SOFTWARE;
+	desc.ops = &stm_cs_ops;
+	desc.pdata = pdata;
+	desc.dev = dev;
+	desc.groups = coresight_stm_groups;
+	drvdata->csdev = coresight_register(&desc);
 	if (IS_ERR(drvdata->csdev)) {
 		ret = PTR_ERR(drvdata->csdev);
 		goto stm_unregister;
diff --git a/drivers/hwtracing/coresight/coresight-tmc.c b/drivers/hwtracing/coresight/coresight-tmc.c
index 84052c72462c..4cbcaf93c9d9 100644
--- a/drivers/hwtracing/coresight/coresight-tmc.c
+++ b/drivers/hwtracing/coresight/coresight-tmc.c
@@ -302,7 +302,7 @@ static int tmc_probe(struct amba_device *adev, const struct amba_id *id)
 	struct coresight_platform_data *pdata = NULL;
 	struct tmc_drvdata *drvdata;
 	struct resource *res = &adev->res;
-	struct coresight_desc *desc;
+	struct coresight_desc desc = { 0 };
 	struct device_node *np = adev->dev.of_node;
 
 	if (np) {
@@ -319,10 +319,6 @@ static int tmc_probe(struct amba_device *adev, const struct amba_id *id)
 	if (!drvdata)
 		goto out;
 
-	desc = devm_kzalloc(dev, sizeof(*desc), GFP_KERNEL);
-	if (!desc)
-		goto out;
-
 	drvdata->dev = &adev->dev;
 	dev_set_drvdata(dev, drvdata);
 
@@ -354,24 +350,25 @@ static int tmc_probe(struct amba_device *adev, const struct amba_id *id)
 
 	pm_runtime_put(&adev->dev);
 
-	desc->pdata = pdata;
-	desc->dev = dev;
-	desc->subtype.sink_subtype = CORESIGHT_DEV_SUBTYPE_SINK_BUFFER;
-	desc->groups = coresight_tmc_groups;
+	desc.pdata = pdata;
+	desc.dev = dev;
+	desc.groups = coresight_tmc_groups;
 
 	if (drvdata->config_type == TMC_CONFIG_TYPE_ETB) {
-		desc->type = CORESIGHT_DEV_TYPE_SINK;
-		desc->ops = &tmc_etb_cs_ops;
+		desc.type = CORESIGHT_DEV_TYPE_SINK;
+		desc.subtype.sink_subtype = CORESIGHT_DEV_SUBTYPE_SINK_BUFFER;
+		desc.ops = &tmc_etb_cs_ops;
 	} else if (drvdata->config_type == TMC_CONFIG_TYPE_ETR) {
-		desc->type = CORESIGHT_DEV_TYPE_SINK;
-		desc->ops = &tmc_etr_cs_ops;
+		desc.type = CORESIGHT_DEV_TYPE_SINK;
+		desc.subtype.sink_subtype = CORESIGHT_DEV_SUBTYPE_SINK_BUFFER;
+		desc.ops = &tmc_etr_cs_ops;
 	} else {
-		desc->type = CORESIGHT_DEV_TYPE_LINKSINK;
-		desc->subtype.link_subtype = CORESIGHT_DEV_SUBTYPE_LINK_FIFO;
-		desc->ops = &tmc_etf_cs_ops;
+		desc.type = CORESIGHT_DEV_TYPE_LINKSINK;
+		desc.subtype.link_subtype = CORESIGHT_DEV_SUBTYPE_LINK_FIFO;
+		desc.ops = &tmc_etf_cs_ops;
 	}
 
-	drvdata->csdev = coresight_register(desc);
+	drvdata->csdev = coresight_register(&desc);
 	if (IS_ERR(drvdata->csdev)) {
 		ret = PTR_ERR(drvdata->csdev);
 		goto out;
diff --git a/drivers/hwtracing/coresight/coresight-tpiu.c b/drivers/hwtracing/coresight/coresight-tpiu.c
index 4e471e2e9d89..0673baf0f2f5 100644
--- a/drivers/hwtracing/coresight/coresight-tpiu.c
+++ b/drivers/hwtracing/coresight/coresight-tpiu.c
@@ -119,7 +119,7 @@ static int tpiu_probe(struct amba_device *adev, const struct amba_id *id)
 	struct coresight_platform_data *pdata = NULL;
 	struct tpiu_drvdata *drvdata;
 	struct resource *res = &adev->res;
-	struct coresight_desc *desc;
+	struct coresight_desc desc = { 0 };
 	struct device_node *np = adev->dev.of_node;
 
 	if (np) {
@@ -154,16 +154,12 @@ static int tpiu_probe(struct amba_device *adev, const struct amba_id *id)
 
 	pm_runtime_put(&adev->dev);
 
-	desc = devm_kzalloc(dev, sizeof(*desc), GFP_KERNEL);
-	if (!desc)
-		return -ENOMEM;
-
-	desc->type = CORESIGHT_DEV_TYPE_SINK;
-	desc->subtype.sink_subtype = CORESIGHT_DEV_SUBTYPE_SINK_PORT;
-	desc->ops = &tpiu_cs_ops;
-	desc->pdata = pdata;
-	desc->dev = dev;
-	drvdata->csdev = coresight_register(desc);
+	desc.type = CORESIGHT_DEV_TYPE_SINK;
+	desc.subtype.sink_subtype = CORESIGHT_DEV_SUBTYPE_SINK_PORT;
+	desc.ops = &tpiu_cs_ops;
+	desc.pdata = pdata;
+	desc.dev = dev;
+	drvdata->csdev = coresight_register(&desc);
 	if (IS_ERR(drvdata->csdev))
 		return PTR_ERR(drvdata->csdev);
 
-- 
2.7.4

WARNING: multiple messages have this Message-ID (diff)
From: mathieu.poirier@linaro.org (Mathieu Poirier)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 15/28] coresight: Use local coresight_desc instances
Date: Thu, 25 Aug 2016 15:19:05 -0600	[thread overview]
Message-ID: <1472159958-5981-16-git-send-email-mathieu.poirier@linaro.org> (raw)
In-Reply-To: <1472159958-5981-1-git-send-email-mathieu.poirier@linaro.org>

From: Suzuki K Poulose <suzuki.poulose@arm.com>

Each coresight device prepares a description for coresight_register()
in struct coresight_desc. Once we register the device, the description is
useless and can be freed. The coresight_desc is small enough (48bytes on
64bit)i to be allocated on the stack. Hence use an automatic variable to
avoid a needless dynamic allocation and wasting the memory(which will only
be free'd when the device is destroyed).

Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Pratik Patel <pratikp@codeaurora.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
---
 drivers/hwtracing/coresight/coresight-etb10.c      | 20 ++++++--------
 drivers/hwtracing/coresight/coresight-etm3x.c      | 20 ++++++--------
 drivers/hwtracing/coresight/coresight-etm4x.c      | 20 ++++++--------
 drivers/hwtracing/coresight/coresight-funnel.c     | 20 ++++++--------
 .../coresight/coresight-replicator-qcom.c          | 18 +++++--------
 drivers/hwtracing/coresight/coresight-replicator.c | 20 +++++---------
 drivers/hwtracing/coresight/coresight-stm.c        | 22 ++++++---------
 drivers/hwtracing/coresight/coresight-tmc.c        | 31 ++++++++++------------
 drivers/hwtracing/coresight/coresight-tpiu.c       | 18 +++++--------
 9 files changed, 75 insertions(+), 114 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-etb10.c b/drivers/hwtracing/coresight/coresight-etb10.c
index 3b483e3f00ee..8a4927ca9181 100644
--- a/drivers/hwtracing/coresight/coresight-etb10.c
+++ b/drivers/hwtracing/coresight/coresight-etb10.c
@@ -636,7 +636,7 @@ static int etb_probe(struct amba_device *adev, const struct amba_id *id)
 	struct coresight_platform_data *pdata = NULL;
 	struct etb_drvdata *drvdata;
 	struct resource *res = &adev->res;
-	struct coresight_desc *desc;
+	struct coresight_desc desc = { 0 };
 	struct device_node *np = adev->dev.of_node;
 
 	if (np) {
@@ -682,17 +682,13 @@ static int etb_probe(struct amba_device *adev, const struct amba_id *id)
 		return -ENOMEM;
 	}
 
-	desc = devm_kzalloc(dev, sizeof(*desc), GFP_KERNEL);
-	if (!desc)
-		return -ENOMEM;
-
-	desc->type = CORESIGHT_DEV_TYPE_SINK;
-	desc->subtype.sink_subtype = CORESIGHT_DEV_SUBTYPE_SINK_BUFFER;
-	desc->ops = &etb_cs_ops;
-	desc->pdata = pdata;
-	desc->dev = dev;
-	desc->groups = coresight_etb_groups;
-	drvdata->csdev = coresight_register(desc);
+	desc.type = CORESIGHT_DEV_TYPE_SINK;
+	desc.subtype.sink_subtype = CORESIGHT_DEV_SUBTYPE_SINK_BUFFER;
+	desc.ops = &etb_cs_ops;
+	desc.pdata = pdata;
+	desc.dev = dev;
+	desc.groups = coresight_etb_groups;
+	drvdata->csdev = coresight_register(&desc);
 	if (IS_ERR(drvdata->csdev))
 		return PTR_ERR(drvdata->csdev);
 
diff --git a/drivers/hwtracing/coresight/coresight-etm3x.c b/drivers/hwtracing/coresight/coresight-etm3x.c
index b4f380a9da5c..326afe49251a 100644
--- a/drivers/hwtracing/coresight/coresight-etm3x.c
+++ b/drivers/hwtracing/coresight/coresight-etm3x.c
@@ -756,13 +756,9 @@ static int etm_probe(struct amba_device *adev, const struct amba_id *id)
 	struct coresight_platform_data *pdata = NULL;
 	struct etm_drvdata *drvdata;
 	struct resource *res = &adev->res;
-	struct coresight_desc *desc;
+	struct coresight_desc desc = { 0 };
 	struct device_node *np = adev->dev.of_node;
 
-	desc = devm_kzalloc(dev, sizeof(*desc), GFP_KERNEL);
-	if (!desc)
-		return -ENOMEM;
-
 	drvdata = devm_kzalloc(dev, sizeof(*drvdata), GFP_KERNEL);
 	if (!drvdata)
 		return -ENOMEM;
@@ -825,13 +821,13 @@ static int etm_probe(struct amba_device *adev, const struct amba_id *id)
 	etm_init_trace_id(drvdata);
 	etm_set_default(&drvdata->config);
 
-	desc->type = CORESIGHT_DEV_TYPE_SOURCE;
-	desc->subtype.source_subtype = CORESIGHT_DEV_SUBTYPE_SOURCE_PROC;
-	desc->ops = &etm_cs_ops;
-	desc->pdata = pdata;
-	desc->dev = dev;
-	desc->groups = coresight_etm_groups;
-	drvdata->csdev = coresight_register(desc);
+	desc.type = CORESIGHT_DEV_TYPE_SOURCE;
+	desc.subtype.source_subtype = CORESIGHT_DEV_SUBTYPE_SOURCE_PROC;
+	desc.ops = &etm_cs_ops;
+	desc.pdata = pdata;
+	desc.dev = dev;
+	desc.groups = coresight_etm_groups;
+	drvdata->csdev = coresight_register(&desc);
 	if (IS_ERR(drvdata->csdev)) {
 		ret = PTR_ERR(drvdata->csdev);
 		goto err_arch_supported;
diff --git a/drivers/hwtracing/coresight/coresight-etm4x.c b/drivers/hwtracing/coresight/coresight-etm4x.c
index 3b16f8a9e44d..d8721fb8da99 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x.c
+++ b/drivers/hwtracing/coresight/coresight-etm4x.c
@@ -711,13 +711,9 @@ static int etm4_probe(struct amba_device *adev, const struct amba_id *id)
 	struct coresight_platform_data *pdata = NULL;
 	struct etmv4_drvdata *drvdata;
 	struct resource *res = &adev->res;
-	struct coresight_desc *desc;
+	struct coresight_desc desc = { 0 };
 	struct device_node *np = adev->dev.of_node;
 
-	desc = devm_kzalloc(dev, sizeof(*desc), GFP_KERNEL);
-	if (!desc)
-		return -ENOMEM;
-
 	drvdata = devm_kzalloc(dev, sizeof(*drvdata), GFP_KERNEL);
 	if (!drvdata)
 		return -ENOMEM;
@@ -772,13 +768,13 @@ static int etm4_probe(struct amba_device *adev, const struct amba_id *id)
 	etm4_init_trace_id(drvdata);
 	etm4_set_default(&drvdata->config);
 
-	desc->type = CORESIGHT_DEV_TYPE_SOURCE;
-	desc->subtype.source_subtype = CORESIGHT_DEV_SUBTYPE_SOURCE_PROC;
-	desc->ops = &etm4_cs_ops;
-	desc->pdata = pdata;
-	desc->dev = dev;
-	desc->groups = coresight_etmv4_groups;
-	drvdata->csdev = coresight_register(desc);
+	desc.type = CORESIGHT_DEV_TYPE_SOURCE;
+	desc.subtype.source_subtype = CORESIGHT_DEV_SUBTYPE_SOURCE_PROC;
+	desc.ops = &etm4_cs_ops;
+	desc.pdata = pdata;
+	desc.dev = dev;
+	desc.groups = coresight_etmv4_groups;
+	drvdata->csdev = coresight_register(&desc);
 	if (IS_ERR(drvdata->csdev)) {
 		ret = PTR_ERR(drvdata->csdev);
 		goto err_arch_supported;
diff --git a/drivers/hwtracing/coresight/coresight-funnel.c b/drivers/hwtracing/coresight/coresight-funnel.c
index 05df789056cc..860fe6ef5632 100644
--- a/drivers/hwtracing/coresight/coresight-funnel.c
+++ b/drivers/hwtracing/coresight/coresight-funnel.c
@@ -176,7 +176,7 @@ static int funnel_probe(struct amba_device *adev, const struct amba_id *id)
 	struct coresight_platform_data *pdata = NULL;
 	struct funnel_drvdata *drvdata;
 	struct resource *res = &adev->res;
-	struct coresight_desc *desc;
+	struct coresight_desc desc = { 0 };
 	struct device_node *np = adev->dev.of_node;
 
 	if (np) {
@@ -207,17 +207,13 @@ static int funnel_probe(struct amba_device *adev, const struct amba_id *id)
 	drvdata->base = base;
 	pm_runtime_put(&adev->dev);
 
-	desc = devm_kzalloc(dev, sizeof(*desc), GFP_KERNEL);
-	if (!desc)
-		return -ENOMEM;
-
-	desc->type = CORESIGHT_DEV_TYPE_LINK;
-	desc->subtype.link_subtype = CORESIGHT_DEV_SUBTYPE_LINK_MERG;
-	desc->ops = &funnel_cs_ops;
-	desc->pdata = pdata;
-	desc->dev = dev;
-	desc->groups = coresight_funnel_groups;
-	drvdata->csdev = coresight_register(desc);
+	desc.type = CORESIGHT_DEV_TYPE_LINK;
+	desc.subtype.link_subtype = CORESIGHT_DEV_SUBTYPE_LINK_MERG;
+	desc.ops = &funnel_cs_ops;
+	desc.pdata = pdata;
+	desc.dev = dev;
+	desc.groups = coresight_funnel_groups;
+	drvdata->csdev = coresight_register(&desc);
 	if (IS_ERR(drvdata->csdev))
 		return PTR_ERR(drvdata->csdev);
 
diff --git a/drivers/hwtracing/coresight/coresight-replicator-qcom.c b/drivers/hwtracing/coresight/coresight-replicator-qcom.c
index 700f710e4bfa..0a3d15f0b009 100644
--- a/drivers/hwtracing/coresight/coresight-replicator-qcom.c
+++ b/drivers/hwtracing/coresight/coresight-replicator-qcom.c
@@ -102,7 +102,7 @@ static int replicator_probe(struct amba_device *adev, const struct amba_id *id)
 	struct resource *res = &adev->res;
 	struct coresight_platform_data *pdata = NULL;
 	struct replicator_state *drvdata;
-	struct coresight_desc *desc;
+	struct coresight_desc desc = { 0 };
 	struct device_node *np = adev->dev.of_node;
 	void __iomem *base;
 
@@ -134,16 +134,12 @@ static int replicator_probe(struct amba_device *adev, const struct amba_id *id)
 	dev_set_drvdata(dev, drvdata);
 	pm_runtime_put(&adev->dev);
 
-	desc = devm_kzalloc(dev, sizeof(*desc), GFP_KERNEL);
-	if (!desc)
-		return -ENOMEM;
-
-	desc->type = CORESIGHT_DEV_TYPE_LINK;
-	desc->subtype.link_subtype = CORESIGHT_DEV_SUBTYPE_LINK_SPLIT;
-	desc->ops = &replicator_cs_ops;
-	desc->pdata = adev->dev.platform_data;
-	desc->dev = &adev->dev;
-	drvdata->csdev = coresight_register(desc);
+	desc.type = CORESIGHT_DEV_TYPE_LINK;
+	desc.subtype.link_subtype = CORESIGHT_DEV_SUBTYPE_LINK_SPLIT;
+	desc.ops = &replicator_cs_ops;
+	desc.pdata = adev->dev.platform_data;
+	desc.dev = &adev->dev;
+	drvdata->csdev = coresight_register(&desc);
 	if (IS_ERR(drvdata->csdev))
 		return PTR_ERR(drvdata->csdev);
 
diff --git a/drivers/hwtracing/coresight/coresight-replicator.c b/drivers/hwtracing/coresight/coresight-replicator.c
index c6982e312e15..3756e71cb8f5 100644
--- a/drivers/hwtracing/coresight/coresight-replicator.c
+++ b/drivers/hwtracing/coresight/coresight-replicator.c
@@ -69,7 +69,7 @@ static int replicator_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct coresight_platform_data *pdata = NULL;
 	struct replicator_drvdata *drvdata;
-	struct coresight_desc *desc;
+	struct coresight_desc desc = { 0 };
 	struct device_node *np = pdev->dev.of_node;
 
 	if (np) {
@@ -95,18 +95,12 @@ static int replicator_probe(struct platform_device *pdev)
 	pm_runtime_enable(&pdev->dev);
 	platform_set_drvdata(pdev, drvdata);
 
-	desc = devm_kzalloc(dev, sizeof(*desc), GFP_KERNEL);
-	if (!desc) {
-		ret = -ENOMEM;
-		goto out_disable_pm;
-	}
-
-	desc->type = CORESIGHT_DEV_TYPE_LINK;
-	desc->subtype.link_subtype = CORESIGHT_DEV_SUBTYPE_LINK_SPLIT;
-	desc->ops = &replicator_cs_ops;
-	desc->pdata = pdev->dev.platform_data;
-	desc->dev = &pdev->dev;
-	drvdata->csdev = coresight_register(desc);
+	desc.type = CORESIGHT_DEV_TYPE_LINK;
+	desc.subtype.link_subtype = CORESIGHT_DEV_SUBTYPE_LINK_SPLIT;
+	desc.ops = &replicator_cs_ops;
+	desc.pdata = pdev->dev.platform_data;
+	desc.dev = &pdev->dev;
+	drvdata->csdev = coresight_register(&desc);
 	if (IS_ERR(drvdata->csdev)) {
 		ret = PTR_ERR(drvdata->csdev);
 		goto out_disable_pm;
diff --git a/drivers/hwtracing/coresight/coresight-stm.c b/drivers/hwtracing/coresight/coresight-stm.c
index 482c8bb27f87..819629aed2f7 100644
--- a/drivers/hwtracing/coresight/coresight-stm.c
+++ b/drivers/hwtracing/coresight/coresight-stm.c
@@ -799,7 +799,7 @@ static int stm_probe(struct amba_device *adev, const struct amba_id *id)
 	struct resource *res = &adev->res;
 	struct resource ch_res;
 	size_t res_size, bitmap_size;
-	struct coresight_desc *desc;
+	struct coresight_desc desc = { 0 };
 	struct device_node *np = adev->dev.of_node;
 
 	if (np) {
@@ -865,19 +865,13 @@ static int stm_probe(struct amba_device *adev, const struct amba_id *id)
 		return -EPROBE_DEFER;
 	}
 
-	desc = devm_kzalloc(dev, sizeof(*desc), GFP_KERNEL);
-	if (!desc) {
-		ret = -ENOMEM;
-		goto stm_unregister;
-	}
-
-	desc->type = CORESIGHT_DEV_TYPE_SOURCE;
-	desc->subtype.source_subtype = CORESIGHT_DEV_SUBTYPE_SOURCE_SOFTWARE;
-	desc->ops = &stm_cs_ops;
-	desc->pdata = pdata;
-	desc->dev = dev;
-	desc->groups = coresight_stm_groups;
-	drvdata->csdev = coresight_register(desc);
+	desc.type = CORESIGHT_DEV_TYPE_SOURCE;
+	desc.subtype.source_subtype = CORESIGHT_DEV_SUBTYPE_SOURCE_SOFTWARE;
+	desc.ops = &stm_cs_ops;
+	desc.pdata = pdata;
+	desc.dev = dev;
+	desc.groups = coresight_stm_groups;
+	drvdata->csdev = coresight_register(&desc);
 	if (IS_ERR(drvdata->csdev)) {
 		ret = PTR_ERR(drvdata->csdev);
 		goto stm_unregister;
diff --git a/drivers/hwtracing/coresight/coresight-tmc.c b/drivers/hwtracing/coresight/coresight-tmc.c
index 84052c72462c..4cbcaf93c9d9 100644
--- a/drivers/hwtracing/coresight/coresight-tmc.c
+++ b/drivers/hwtracing/coresight/coresight-tmc.c
@@ -302,7 +302,7 @@ static int tmc_probe(struct amba_device *adev, const struct amba_id *id)
 	struct coresight_platform_data *pdata = NULL;
 	struct tmc_drvdata *drvdata;
 	struct resource *res = &adev->res;
-	struct coresight_desc *desc;
+	struct coresight_desc desc = { 0 };
 	struct device_node *np = adev->dev.of_node;
 
 	if (np) {
@@ -319,10 +319,6 @@ static int tmc_probe(struct amba_device *adev, const struct amba_id *id)
 	if (!drvdata)
 		goto out;
 
-	desc = devm_kzalloc(dev, sizeof(*desc), GFP_KERNEL);
-	if (!desc)
-		goto out;
-
 	drvdata->dev = &adev->dev;
 	dev_set_drvdata(dev, drvdata);
 
@@ -354,24 +350,25 @@ static int tmc_probe(struct amba_device *adev, const struct amba_id *id)
 
 	pm_runtime_put(&adev->dev);
 
-	desc->pdata = pdata;
-	desc->dev = dev;
-	desc->subtype.sink_subtype = CORESIGHT_DEV_SUBTYPE_SINK_BUFFER;
-	desc->groups = coresight_tmc_groups;
+	desc.pdata = pdata;
+	desc.dev = dev;
+	desc.groups = coresight_tmc_groups;
 
 	if (drvdata->config_type == TMC_CONFIG_TYPE_ETB) {
-		desc->type = CORESIGHT_DEV_TYPE_SINK;
-		desc->ops = &tmc_etb_cs_ops;
+		desc.type = CORESIGHT_DEV_TYPE_SINK;
+		desc.subtype.sink_subtype = CORESIGHT_DEV_SUBTYPE_SINK_BUFFER;
+		desc.ops = &tmc_etb_cs_ops;
 	} else if (drvdata->config_type == TMC_CONFIG_TYPE_ETR) {
-		desc->type = CORESIGHT_DEV_TYPE_SINK;
-		desc->ops = &tmc_etr_cs_ops;
+		desc.type = CORESIGHT_DEV_TYPE_SINK;
+		desc.subtype.sink_subtype = CORESIGHT_DEV_SUBTYPE_SINK_BUFFER;
+		desc.ops = &tmc_etr_cs_ops;
 	} else {
-		desc->type = CORESIGHT_DEV_TYPE_LINKSINK;
-		desc->subtype.link_subtype = CORESIGHT_DEV_SUBTYPE_LINK_FIFO;
-		desc->ops = &tmc_etf_cs_ops;
+		desc.type = CORESIGHT_DEV_TYPE_LINKSINK;
+		desc.subtype.link_subtype = CORESIGHT_DEV_SUBTYPE_LINK_FIFO;
+		desc.ops = &tmc_etf_cs_ops;
 	}
 
-	drvdata->csdev = coresight_register(desc);
+	drvdata->csdev = coresight_register(&desc);
 	if (IS_ERR(drvdata->csdev)) {
 		ret = PTR_ERR(drvdata->csdev);
 		goto out;
diff --git a/drivers/hwtracing/coresight/coresight-tpiu.c b/drivers/hwtracing/coresight/coresight-tpiu.c
index 4e471e2e9d89..0673baf0f2f5 100644
--- a/drivers/hwtracing/coresight/coresight-tpiu.c
+++ b/drivers/hwtracing/coresight/coresight-tpiu.c
@@ -119,7 +119,7 @@ static int tpiu_probe(struct amba_device *adev, const struct amba_id *id)
 	struct coresight_platform_data *pdata = NULL;
 	struct tpiu_drvdata *drvdata;
 	struct resource *res = &adev->res;
-	struct coresight_desc *desc;
+	struct coresight_desc desc = { 0 };
 	struct device_node *np = adev->dev.of_node;
 
 	if (np) {
@@ -154,16 +154,12 @@ static int tpiu_probe(struct amba_device *adev, const struct amba_id *id)
 
 	pm_runtime_put(&adev->dev);
 
-	desc = devm_kzalloc(dev, sizeof(*desc), GFP_KERNEL);
-	if (!desc)
-		return -ENOMEM;
-
-	desc->type = CORESIGHT_DEV_TYPE_SINK;
-	desc->subtype.sink_subtype = CORESIGHT_DEV_SUBTYPE_SINK_PORT;
-	desc->ops = &tpiu_cs_ops;
-	desc->pdata = pdata;
-	desc->dev = dev;
-	drvdata->csdev = coresight_register(desc);
+	desc.type = CORESIGHT_DEV_TYPE_SINK;
+	desc.subtype.sink_subtype = CORESIGHT_DEV_SUBTYPE_SINK_PORT;
+	desc.ops = &tpiu_cs_ops;
+	desc.pdata = pdata;
+	desc.dev = dev;
+	drvdata->csdev = coresight_register(&desc);
 	if (IS_ERR(drvdata->csdev))
 		return PTR_ERR(drvdata->csdev);
 
-- 
2.7.4

  parent reply	other threads:[~2016-08-25 21:30 UTC|newest]

Thread overview: 60+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-08-25 21:18 [PATCH 00/28] coresight: next v4.8-rc3 Mathieu Poirier
2016-08-25 21:18 ` Mathieu Poirier
2016-08-25 21:18 ` [PATCH 01/28] coresight: access conn->child_name only if it's initialised Mathieu Poirier
2016-08-25 21:18   ` Mathieu Poirier
2016-08-25 21:18 ` [PATCH 02/28] coresight-stm: support mmapping channel regions with mmio_addr Mathieu Poirier
2016-08-25 21:18   ` Mathieu Poirier
2016-08-25 21:18 ` [PATCH 03/28] coresight: always use stashed trace id value in etm4_trace_id Mathieu Poirier
2016-08-25 21:18   ` Mathieu Poirier
2016-08-25 21:18 ` [PATCH 04/28] coresight: Remove erroneous dma_free_coherent in tmc_probe Mathieu Poirier
2016-08-25 21:18   ` Mathieu Poirier
2016-08-25 21:18 ` [PATCH 05/28] coresight: Consolidate error handling path for tmc_probe Mathieu Poirier
2016-08-25 21:18   ` Mathieu Poirier
2016-08-25 21:18 ` [PATCH 06/28] coresight: Fix csdev connections initialisation Mathieu Poirier
2016-08-25 21:18   ` Mathieu Poirier
2016-08-25 21:18 ` [PATCH 07/28] coresight: tmc: Limit the trace to available data Mathieu Poirier
2016-08-25 21:18   ` Mathieu Poirier
2016-08-25 21:18 ` [PATCH 08/28] coresight: etmv4: Fix ETMv4x peripheral ID table Mathieu Poirier
2016-08-25 21:18   ` Mathieu Poirier
2016-08-25 21:18 ` [PATCH 09/28] coresight: Cleanup TMC status check Mathieu Poirier
2016-08-25 21:18   ` Mathieu Poirier
2016-08-25 21:19 ` [PATCH 10/28] coresight: Add better messages for coresight_timeout Mathieu Poirier
2016-08-25 21:19   ` Mathieu Poirier
2016-08-25 21:19 ` [PATCH 11/28] coresight: delay initialisation when children are missing Mathieu Poirier
2016-08-25 21:19   ` Mathieu Poirier
2016-08-25 21:19 ` [PATCH 12/28] coresight: add PM runtime calls to coresight_simple_func() Mathieu Poirier
2016-08-25 21:19   ` Mathieu Poirier
2016-08-25 21:19 ` [PATCH 13/28] coresight-etm3x: Add ARM ETM 3.5 Cortex-A5 peripheral ID Mathieu Poirier
2016-08-25 21:19   ` Mathieu Poirier
2016-08-25 21:19 ` [PATCH 14/28] hwtracing: coresight: of_coresight: add missing of_node_put after calling of_parse_phandle Mathieu Poirier
2016-08-25 21:19   ` Mathieu Poirier
2016-08-25 21:19 ` Mathieu Poirier [this message]
2016-08-25 21:19   ` [PATCH 15/28] coresight: Use local coresight_desc instances Mathieu Poirier
2016-08-25 21:19 ` [PATCH 16/28] coresight: etm4x: remove duplicated include from coresight-etm4x.c Mathieu Poirier
2016-08-25 21:19   ` Mathieu Poirier
2016-08-25 21:19 ` [PATCH 17/28] coresight: tmc: Delete an unnecessary check before the function call "kfree" Mathieu Poirier
2016-08-25 21:19   ` Mathieu Poirier
2016-08-25 21:19 ` [PATCH 18/28] coresight: etm4x: request to retain power to the trace unit when active Mathieu Poirier
2016-08-25 21:19   ` Mathieu Poirier
2016-08-25 21:19 ` [PATCH 19/28] coresight: fix handling of ETM trace register access via sysfs Mathieu Poirier
2016-08-25 21:19   ` Mathieu Poirier
2016-08-25 21:19 ` [PATCH 20/28] coresight: etm-perf: pass struct perf_event to source::enable/disable() Mathieu Poirier
2016-08-25 21:19   ` Mathieu Poirier
2016-08-25 21:19 ` [PATCH 21/28] coresight: remove duplicated enumeration Mathieu Poirier
2016-08-25 21:19   ` Mathieu Poirier
2016-08-25 21:19 ` [PATCH 22/28] coresight: etm-perf: configuring filters from perf core Mathieu Poirier
2016-08-25 21:19   ` Mathieu Poirier
2016-08-25 21:19 ` [PATCH 23/28] coresight: etm4x: split default and filter configuration Mathieu Poirier
2016-08-25 21:19   ` Mathieu Poirier
2016-08-25 21:19 ` [PATCH 24/28] coresight: etm4x: cleaning up default " Mathieu Poirier
2016-08-25 21:19   ` Mathieu Poirier
2016-08-25 21:19 ` [PATCH 25/28] coresight: etm4x: adding range filter configuration function Mathieu Poirier
2016-08-25 21:19   ` Mathieu Poirier
2016-08-25 21:19 ` [PATCH 26/28] coresight: etm4x: configuring include/exclude function Mathieu Poirier
2016-08-25 21:19   ` Mathieu Poirier
2016-08-25 21:19 ` [PATCH 27/28] coresight: etm4x: adding configurable address range filtering Mathieu Poirier
2016-08-25 21:19   ` Mathieu Poirier
2016-08-25 21:19 ` [PATCH 28/28] coresight: etm4x: adding configurable start/stop filtering Mathieu Poirier
2016-08-25 21:19   ` Mathieu Poirier
2016-08-31 11:08 ` [PATCH 00/28] coresight: next v4.8-rc3 Greg KH
2016-08-31 11:08   ` Greg KH

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