[PATCH 17/66] hwmon: (i5500_temp) use permission-specific DEVICE_ATTR variants

From: Julia Lawall
Date: Thu Dec 22 2016 - 07:41:55 EST


Use DEVICE_ATTR_RO etc. for read only attributes etc. This simplifies the
source code, improves readbility, and reduces the chance of
inconsistencies.

The semantic patch for the RO case, in the case where the show function
already has the expected name, is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@ro@
declarer name DEVICE_ATTR;
identifier x,x_show;
@@

DEVICE_ATTR(x, \(0444\|S_IRUGO\), x_show, NULL);

@script:ocaml@
x << ro.x;
x_show << ro.x_show;
@@

if not (x^"_show" = x_show) then Coccilib.include_match false

@@
declarer name DEVICE_ATTR_RO;
identifier ro.x,ro.x_show;
@@

- DEVICE_ATTR(x, \(0444\|S_IRUGO\), x_show, NULL);
+ DEVICE_ATTR_RO(x);
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@xxxxxxx>

---
drivers/hwmon/i5500_temp.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/hwmon/i5500_temp.c b/drivers/hwmon/i5500_temp.c
index 3e3ccbf..400e067 100644
--- a/drivers/hwmon/i5500_temp.c
+++ b/drivers/hwmon/i5500_temp.c
@@ -43,8 +43,8 @@
*/

/* Sensor resolution : 0.5 degree C */
-static ssize_t show_temp(struct device *dev,
- struct device_attribute *devattr, char *buf)
+static ssize_t temp1_input_show(struct device *dev,
+ struct device_attribute *devattr, char *buf)
{
struct pci_dev *pdev = to_pci_dev(dev->parent);
long temp;
@@ -83,7 +83,7 @@ static ssize_t show_alarm(struct device *dev,
return sprintf(buf, "%u\n", (unsigned int)ctsts & (1 << nr));
}

-static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL);
+static DEVICE_ATTR_RO(temp1_input);
static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, show_thresh, NULL, 0xE2);
static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO, show_thresh, NULL, 0xEC);
static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO, show_thresh, NULL, 0xEE);