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From: YueHaibing <yuehaibing@huawei.com>
To: Mathieu Poirier <mathieu.poirier@linaro.org>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>,
	Alexandre Torgue <alexandre.torgue@st.com>
Cc: YueHaibing <yuehaibing@huawei.com>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-stm32@st-md-mailman.stormreply.com>,
	<linux-kernel@vger.kernel.org>, <kernel-janitors@vger.kernel.org>
Subject: [PATCH -next] coresight: stm: remove set but not used variable 'res_size'
Date: Sat, 1 Dec 2018 08:39:45 +0000	[thread overview]
Message-ID: <1543653585-108277-1-git-send-email-yuehaibing@huawei.com> (raw)

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/hwtracing/coresight/coresight-stm.c: In function 'stm_probe':
drivers/hwtracing/coresight/coresight-stm.c:796:9: warning:
 variable 'res_size' set but not used [-Wunused-but-set-variable]

It never used since introduction in commit
237483aa5cf4 ("coresight: stm: adding driver for CoreSight STM component")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
---
 drivers/hwtracing/coresight/coresight-stm.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-stm.c b/drivers/hwtracing/coresight/coresight-stm.c
index ef339ff..f07825d 100644
--- a/drivers/hwtracing/coresight/coresight-stm.c
+++ b/drivers/hwtracing/coresight/coresight-stm.c
@@ -793,7 +793,7 @@ static int stm_probe(struct amba_device *adev, const struct amba_id *id)
 	struct stm_drvdata *drvdata;
 	struct resource *res = &adev->res;
 	struct resource ch_res;
-	size_t res_size, bitmap_size;
+	size_t bitmap_size;
 	struct coresight_desc desc = { 0 };
 	struct device_node *np = adev->dev.of_node;
 
@@ -833,15 +833,11 @@ static int stm_probe(struct amba_device *adev, const struct amba_id *id)
 
 	drvdata->write_bytes = stm_fundamental_data_size(drvdata);
 
-	if (boot_nr_channel) {
+	if (boot_nr_channel)
 		drvdata->numsp = boot_nr_channel;
-		res_size = min((resource_size_t)(boot_nr_channel *
-				  BYTES_PER_CHANNEL), resource_size(res));
-	} else {
+	else
 		drvdata->numsp = stm_num_stimulus_port(drvdata);
-		res_size = min((resource_size_t)(drvdata->numsp *
-				 BYTES_PER_CHANNEL), resource_size(res));
-	}
+
 	bitmap_size = BITS_TO_LONGS(drvdata->numsp) * sizeof(long);
 
 	guaranteed = devm_kzalloc(dev, bitmap_size, GFP_KERNEL);




WARNING: multiple messages have this Message-ID (diff)
From: YueHaibing <yuehaibing@huawei.com>
To: Mathieu Poirier <mathieu.poirier@linaro.org>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>,
	Alexandre Torgue <alexandre.torgue@st.com>
Cc: kernel-janitors@vger.kernel.org,
	YueHaibing <yuehaibing@huawei.com>,
	linux-stm32@st-md-mailman.stormreply.com,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH -next] coresight: stm: remove set but not used variable 'res_size'
Date: Sat, 01 Dec 2018 08:39:45 +0000	[thread overview]
Message-ID: <1543653585-108277-1-git-send-email-yuehaibing@huawei.com> (raw)

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/hwtracing/coresight/coresight-stm.c: In function 'stm_probe':
drivers/hwtracing/coresight/coresight-stm.c:796:9: warning:
 variable 'res_size' set but not used [-Wunused-but-set-variable]

It never used since introduction in commit
237483aa5cf4 ("coresight: stm: adding driver for CoreSight STM component")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
---
 drivers/hwtracing/coresight/coresight-stm.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-stm.c b/drivers/hwtracing/coresight/coresight-stm.c
index ef339ff..f07825d 100644
--- a/drivers/hwtracing/coresight/coresight-stm.c
+++ b/drivers/hwtracing/coresight/coresight-stm.c
@@ -793,7 +793,7 @@ static int stm_probe(struct amba_device *adev, const struct amba_id *id)
 	struct stm_drvdata *drvdata;
 	struct resource *res = &adev->res;
 	struct resource ch_res;
-	size_t res_size, bitmap_size;
+	size_t bitmap_size;
 	struct coresight_desc desc = { 0 };
 	struct device_node *np = adev->dev.of_node;
 
@@ -833,15 +833,11 @@ static int stm_probe(struct amba_device *adev, const struct amba_id *id)
 
 	drvdata->write_bytes = stm_fundamental_data_size(drvdata);
 
-	if (boot_nr_channel) {
+	if (boot_nr_channel)
 		drvdata->numsp = boot_nr_channel;
-		res_size = min((resource_size_t)(boot_nr_channel *
-				  BYTES_PER_CHANNEL), resource_size(res));
-	} else {
+	else
 		drvdata->numsp = stm_num_stimulus_port(drvdata);
-		res_size = min((resource_size_t)(drvdata->numsp *
-				 BYTES_PER_CHANNEL), resource_size(res));
-	}
+
 	bitmap_size = BITS_TO_LONGS(drvdata->numsp) * sizeof(long);
 
 	guaranteed = devm_kzalloc(dev, bitmap_size, GFP_KERNEL);

WARNING: multiple messages have this Message-ID (diff)
From: YueHaibing <yuehaibing@huawei.com>
To: Mathieu Poirier <mathieu.poirier@linaro.org>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>,
	Alexandre Torgue <alexandre.torgue@st.com>
Cc: kernel-janitors@vger.kernel.org,
	YueHaibing <yuehaibing@huawei.com>,
	linux-stm32@st-md-mailman.stormreply.com,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH -next] coresight: stm: remove set but not used variable 'res_size'
Date: Sat, 1 Dec 2018 08:39:45 +0000	[thread overview]
Message-ID: <1543653585-108277-1-git-send-email-yuehaibing@huawei.com> (raw)

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/hwtracing/coresight/coresight-stm.c: In function 'stm_probe':
drivers/hwtracing/coresight/coresight-stm.c:796:9: warning:
 variable 'res_size' set but not used [-Wunused-but-set-variable]

It never used since introduction in commit
237483aa5cf4 ("coresight: stm: adding driver for CoreSight STM component")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
---
 drivers/hwtracing/coresight/coresight-stm.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-stm.c b/drivers/hwtracing/coresight/coresight-stm.c
index ef339ff..f07825d 100644
--- a/drivers/hwtracing/coresight/coresight-stm.c
+++ b/drivers/hwtracing/coresight/coresight-stm.c
@@ -793,7 +793,7 @@ static int stm_probe(struct amba_device *adev, const struct amba_id *id)
 	struct stm_drvdata *drvdata;
 	struct resource *res = &adev->res;
 	struct resource ch_res;
-	size_t res_size, bitmap_size;
+	size_t bitmap_size;
 	struct coresight_desc desc = { 0 };
 	struct device_node *np = adev->dev.of_node;
 
@@ -833,15 +833,11 @@ static int stm_probe(struct amba_device *adev, const struct amba_id *id)
 
 	drvdata->write_bytes = stm_fundamental_data_size(drvdata);
 
-	if (boot_nr_channel) {
+	if (boot_nr_channel)
 		drvdata->numsp = boot_nr_channel;
-		res_size = min((resource_size_t)(boot_nr_channel *
-				  BYTES_PER_CHANNEL), resource_size(res));
-	} else {
+	else
 		drvdata->numsp = stm_num_stimulus_port(drvdata);
-		res_size = min((resource_size_t)(drvdata->numsp *
-				 BYTES_PER_CHANNEL), resource_size(res));
-	}
+
 	bitmap_size = BITS_TO_LONGS(drvdata->numsp) * sizeof(long);
 
 	guaranteed = devm_kzalloc(dev, bitmap_size, GFP_KERNEL);




_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

             reply	other threads:[~2018-12-01  8:31 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-12-01  8:39 YueHaibing [this message]
2018-12-01  8:39 ` [PATCH -next] coresight: stm: remove set but not used variable 'res_size' YueHaibing
2018-12-01  8:39 ` YueHaibing
2018-12-05  0:39 ` leo.yan
2018-12-05  0:39   ` leo.yan
2018-12-05  0:39   ` leo.yan
2018-12-05 17:24 ` Mathieu Poirier
2018-12-05 17:24   ` Mathieu Poirier
2018-12-05 17:24   ` Mathieu Poirier

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