diff mbox

coresight: tmc: minor fix for output log

Message ID 1491578520-5957-1-git-send-email-leo.yan@linaro.org
State Accepted
Commit 2cd541402829e7cc6621d2fc0ef329321559cb26
Headers show

Commit Message

Leo Yan April 7, 2017, 3:22 p.m. UTC
In current code the output logs are not well symmetric for sink and link
enabling and disabling. This patch is to fix that so can output paired
logs.

Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Leo Yan <leo.yan@linaro.org>

---
 drivers/hwtracing/coresight/coresight-tmc-etf.c | 25 +++++++++++++++++--------
 1 file changed, 17 insertions(+), 8 deletions(-)

-- 
2.7.4

Comments

Mathieu Poirier April 20, 2017, 3:58 p.m. UTC | #1
On 7 April 2017 at 09:22, Leo Yan <leo.yan@linaro.org> wrote:
> In current code the output logs are not well symmetric for sink and link

> enabling and disabling. This patch is to fix that so can output paired

> logs.

>

> Cc: Mathieu Poirier <mathieu.poirier@linaro.org>

> Signed-off-by: Leo Yan <leo.yan@linaro.org>

> ---

>  drivers/hwtracing/coresight/coresight-tmc-etf.c | 25 +++++++++++++++++--------

>  1 file changed, 17 insertions(+), 8 deletions(-)

>

> diff --git a/drivers/hwtracing/coresight/coresight-tmc-etf.c b/drivers/hwtracing/coresight/coresight-tmc-etf.c

> index 1549436..3a1c181 100644

> --- a/drivers/hwtracing/coresight/coresight-tmc-etf.c

> +++ b/drivers/hwtracing/coresight/coresight-tmc-etf.c

> @@ -166,9 +166,6 @@ static int tmc_enable_etf_sink_sysfs(struct coresight_device *csdev)

>         if (!used)

>                 kfree(buf);

>

> -       if (!ret)

> -               dev_info(drvdata->dev, "TMC-ETB/ETF enabled\n");

> -

>         return ret;

>  }

>

> @@ -204,15 +201,27 @@ static int tmc_enable_etf_sink_perf(struct coresight_device *csdev)

>

>  static int tmc_enable_etf_sink(struct coresight_device *csdev, u32 mode)

>  {

> +       int ret;

> +       struct tmc_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);

> +

>         switch (mode) {

>         case CS_MODE_SYSFS:

> -               return tmc_enable_etf_sink_sysfs(csdev);

> +               ret = tmc_enable_etf_sink_sysfs(csdev);

> +               break;

>         case CS_MODE_PERF:

> -               return tmc_enable_etf_sink_perf(csdev);

> +               ret = tmc_enable_etf_sink_perf(csdev);

> +               break;

> +       /* We shouldn't be here */

> +       default:

> +               ret = -EINVAL;

> +               break;

>         }

>

> -       /* We shouldn't be here */

> -       return -EINVAL;

> +       if (ret)

> +               return ret;

> +

> +       dev_info(drvdata->dev, "TMC-ETB/ETF enabled\n");

> +       return 0;

>  }

>

>  static void tmc_disable_etf_sink(struct coresight_device *csdev)

> @@ -273,7 +282,7 @@ static void tmc_disable_etf_link(struct coresight_device *csdev,

>         drvdata->mode = CS_MODE_DISABLED;

>         spin_unlock_irqrestore(&drvdata->spinlock, flags);

>

> -       dev_info(drvdata->dev, "TMC disabled\n");

> +       dev_info(drvdata->dev, "TMC-ETF disabled\n");

>  }

>


Applied - thanks.
Mathieu

>  static void *tmc_alloc_etf_buffer(struct coresight_device *csdev, int cpu,

> --

> 2.7.4

>
diff mbox

Patch

diff --git a/drivers/hwtracing/coresight/coresight-tmc-etf.c b/drivers/hwtracing/coresight/coresight-tmc-etf.c
index 1549436..3a1c181 100644
--- a/drivers/hwtracing/coresight/coresight-tmc-etf.c
+++ b/drivers/hwtracing/coresight/coresight-tmc-etf.c
@@ -166,9 +166,6 @@  static int tmc_enable_etf_sink_sysfs(struct coresight_device *csdev)
 	if (!used)
 		kfree(buf);
 
-	if (!ret)
-		dev_info(drvdata->dev, "TMC-ETB/ETF enabled\n");
-
 	return ret;
 }
 
@@ -204,15 +201,27 @@  static int tmc_enable_etf_sink_perf(struct coresight_device *csdev)
 
 static int tmc_enable_etf_sink(struct coresight_device *csdev, u32 mode)
 {
+	int ret;
+	struct tmc_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
+
 	switch (mode) {
 	case CS_MODE_SYSFS:
-		return tmc_enable_etf_sink_sysfs(csdev);
+		ret = tmc_enable_etf_sink_sysfs(csdev);
+		break;
 	case CS_MODE_PERF:
-		return tmc_enable_etf_sink_perf(csdev);
+		ret = tmc_enable_etf_sink_perf(csdev);
+		break;
+	/* We shouldn't be here */
+	default:
+		ret = -EINVAL;
+		break;
 	}
 
-	/* We shouldn't be here */
-	return -EINVAL;
+	if (ret)
+		return ret;
+
+	dev_info(drvdata->dev, "TMC-ETB/ETF enabled\n");
+	return 0;
 }
 
 static void tmc_disable_etf_sink(struct coresight_device *csdev)
@@ -273,7 +282,7 @@  static void tmc_disable_etf_link(struct coresight_device *csdev,
 	drvdata->mode = CS_MODE_DISABLED;
 	spin_unlock_irqrestore(&drvdata->spinlock, flags);
 
-	dev_info(drvdata->dev, "TMC disabled\n");
+	dev_info(drvdata->dev, "TMC-ETF disabled\n");
 }
 
 static void *tmc_alloc_etf_buffer(struct coresight_device *csdev, int cpu,