linux-kernel - [PATCH] intel_menlow: reduce code duplication

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Date:	Sat, 26 Mar 2016 22:40:26 +0100
From:	Rasmus Villemoes <linux@...musvillemoes.dk>
To:	Sujith Thomas <sujith.thomas@...el.com>,
	Darren Hart <dvhart@...radead.org>
Cc:	Rasmus Villemoes <linux@...musvillemoes.dk>,
	platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] intel_menlow: reduce code duplication

aux0_show and aux1_show consists of almost identical code. Pull that
into a common helper and make them thin wrappers. Similarly for
_store.

Signed-off-by: Rasmus Villemoes <linux@...musvillemoes.dk>
---
 drivers/platform/x86/intel_menlow.c | 48 ++++++++++++++++---------------------
 1 file changed, 21 insertions(+), 27 deletions(-)

diff --git a/drivers/platform/x86/intel_menlow.c b/drivers/platform/x86/intel_menlow.c
index 0a919d81662c..ae3a2a831533 100644
--- a/drivers/platform/x86/intel_menlow.c
+++ b/drivers/platform/x86/intel_menlow.c
@@ -306,33 +306,32 @@ static int sensor_set_auxtrip(acpi_handle handle, int index, int value)
 #define to_intel_menlow_attr(_attr)	\
 	container_of(_attr, struct intel_menlow_attribute, attr)
 
-static ssize_t aux0_show(struct device *dev,
-			 struct device_attribute *dev_attr, char *buf)
+static ssize_t aux_show(struct device *dev, struct device_attribute *dev_attr,
+			char *buf, int idx)
 {
 	struct intel_menlow_attribute *attr = to_intel_menlow_attr(dev_attr);
 	unsigned long long value;
 	int result;
 
-	result = sensor_get_auxtrip(attr->handle, 0, &value);
+	result = sensor_get_auxtrip(attr->handle, idx, &value);
 
 	return result ? result : sprintf(buf, "%lu", DECI_KELVIN_TO_CELSIUS(value));
 }
 
-static ssize_t aux1_show(struct device *dev,
+static ssize_t aux0_show(struct device *dev,
 			 struct device_attribute *dev_attr, char *buf)
 {
-	struct intel_menlow_attribute *attr = to_intel_menlow_attr(dev_attr);
-	unsigned long long value;
-	int result;
-
-	result = sensor_get_auxtrip(attr->handle, 1, &value);
+	return aux_show(dev, dev_attr, buf, 0);
+}
 
-	return result ? result : sprintf(buf, "%lu", DECI_KELVIN_TO_CELSIUS(value));
+static ssize_t aux1_show(struct device *dev,
+			 struct device_attribute *dev_attr, char *buf)
+{
+	return aux_show(dev, dev_attr, buf, 1);
 }
 
-static ssize_t aux0_store(struct device *dev,
-			  struct device_attribute *dev_attr,
-			  const char *buf, size_t count)
+static ssize_t aux_store(struct device *dev, struct device_attribute *dev_attr,
+			 const char *buf, size_t count, int idx)
 {
 	struct intel_menlow_attribute *attr = to_intel_menlow_attr(dev_attr);
 	int value;
@@ -345,27 +344,22 @@ static ssize_t aux0_store(struct device *dev,
 	if (value < 0)
 		return -EINVAL;
 
-	result = sensor_set_auxtrip(attr->handle, 0, CELSIUS_TO_DECI_KELVIN(value));
+	result = sensor_set_auxtrip(attr->handle, idx, CELSIUS_TO_DECI_KELVIN(value));
 	return result ? result : count;
 }
 
-static ssize_t aux1_store(struct device *dev,
+static ssize_t aux0_store(struct device *dev,
 			  struct device_attribute *dev_attr,
 			  const char *buf, size_t count)
 {
-	struct intel_menlow_attribute *attr = to_intel_menlow_attr(dev_attr);
-	int value;
-	int result;
-
-	/*Sanity check; should be a positive integer */
-	if (!sscanf(buf, "%d", &value))
-		return -EINVAL;
-
-	if (value < 0)
-		return -EINVAL;
+	return aux_store(dev, dev_attr, buf, count, 0);
+}
 
-	result = sensor_set_auxtrip(attr->handle, 1, CELSIUS_TO_DECI_KELVIN(value));
-	return result ? result : count;
+static ssize_t aux1_store(struct device *dev,
+			  struct device_attribute *dev_attr,
+			  const char *buf, size_t count)
+{
+	return aux_store(dev, dev_attr, buf, count, 1);
 }
 
 /* BIOS can enable/disable the thermal user application in dabney platform */
-- 
2.1.4