diff mbox series

[12/17] hwmon: (mlxreg-fan) Use HWMON_CHANNEL_INFO macro

Message ID 1554135577-11889-13-git-send-email-linux@roeck-us.net (mailing list archive)
State Accepted
Headers show
Series hwmon: Use HWMON_CHANNEL_INFO macro | expand

Commit Message

Guenter Roeck April 1, 2019, 4:19 p.m. UTC
The HWMON_CHANNEL_INFO macro simplifies the code, reduces the likelihood
of errors, and makes the code easier to read.

The conversion was done automatically with coccinelle. The semantic patch
used to make this change is as follows.

@r@
initializer list elements;
identifier i;
@@

-u32 i[] = {
-  elements,
-  0
-};

@s@
identifier r.i,j,ty;
@@

-struct hwmon_channel_info j = {
-       .type = ty,
-       .config = i,
-};

@script:ocaml t@
ty << s.ty;
elements << r.elements;
shorter;
elems;
@@

shorter :=
   make_ident (List.hd(List.rev (Str.split (Str.regexp "_") ty)));
elems :=
   make_ident
    (String.concat ","
     (List.map (fun x -> Printf.sprintf "\n\t\t\t   %s" x)
       (Str.split (Str.regexp " , ") elements)))

@@
identifier s.j,t.shorter;
identifier t.elems;
@@

- &j
+ HWMON_CHANNEL_INFO(shorter,elems)

This patch does not introduce functional changes. Many thanks to
Julia Lawall for providing the semantic patch.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/mlxreg-fan.c | 48 +++++++++++++++-------------------------------
 1 file changed, 15 insertions(+), 33 deletions(-)
diff mbox series

Patch

diff --git a/drivers/hwmon/mlxreg-fan.c b/drivers/hwmon/mlxreg-fan.c
index 44d4b1af1550..f816d2ae1e58 100644
--- a/drivers/hwmon/mlxreg-fan.c
+++ b/drivers/hwmon/mlxreg-fan.c
@@ -229,40 +229,22 @@  mlxreg_fan_is_visible(const void *data, enum hwmon_sensor_types type, u32 attr,
 	return 0;
 }
 
-static const u32 mlxreg_fan_hwmon_fan_config[] = {
-	HWMON_F_INPUT | HWMON_F_FAULT,
-	HWMON_F_INPUT | HWMON_F_FAULT,
-	HWMON_F_INPUT | HWMON_F_FAULT,
-	HWMON_F_INPUT | HWMON_F_FAULT,
-	HWMON_F_INPUT | HWMON_F_FAULT,
-	HWMON_F_INPUT | HWMON_F_FAULT,
-	HWMON_F_INPUT | HWMON_F_FAULT,
-	HWMON_F_INPUT | HWMON_F_FAULT,
-	HWMON_F_INPUT | HWMON_F_FAULT,
-	HWMON_F_INPUT | HWMON_F_FAULT,
-	HWMON_F_INPUT | HWMON_F_FAULT,
-	HWMON_F_INPUT | HWMON_F_FAULT,
-	0
-};
-
-static const struct hwmon_channel_info mlxreg_fan_hwmon_fan = {
-	.type = hwmon_fan,
-	.config = mlxreg_fan_hwmon_fan_config,
-};
-
-static const u32 mlxreg_fan_hwmon_pwm_config[] = {
-	HWMON_PWM_INPUT,
-	0
-};
-
-static const struct hwmon_channel_info mlxreg_fan_hwmon_pwm = {
-	.type = hwmon_pwm,
-	.config = mlxreg_fan_hwmon_pwm_config,
-};
-
 static const struct hwmon_channel_info *mlxreg_fan_hwmon_info[] = {
-	&mlxreg_fan_hwmon_fan,
-	&mlxreg_fan_hwmon_pwm,
+	HWMON_CHANNEL_INFO(fan,
+			   HWMON_F_INPUT | HWMON_F_FAULT,
+			   HWMON_F_INPUT | HWMON_F_FAULT,
+			   HWMON_F_INPUT | HWMON_F_FAULT,
+			   HWMON_F_INPUT | HWMON_F_FAULT,
+			   HWMON_F_INPUT | HWMON_F_FAULT,
+			   HWMON_F_INPUT | HWMON_F_FAULT,
+			   HWMON_F_INPUT | HWMON_F_FAULT,
+			   HWMON_F_INPUT | HWMON_F_FAULT,
+			   HWMON_F_INPUT | HWMON_F_FAULT,
+			   HWMON_F_INPUT | HWMON_F_FAULT,
+			   HWMON_F_INPUT | HWMON_F_FAULT,
+			   HWMON_F_INPUT | HWMON_F_FAULT),
+	HWMON_CHANNEL_INFO(pwm,
+			   HWMON_PWM_INPUT),
 	NULL
 };