diff mbox series

[03/17] hwmon: (jc42) Use HWMON_CHANNEL_INFO macro

Message ID 1554135577-11889-4-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/jc42.c | 18 +++++-------------
 1 file changed, 5 insertions(+), 13 deletions(-)
diff mbox series

Patch

diff --git a/drivers/hwmon/jc42.c b/drivers/hwmon/jc42.c
index 4fa482ae0eb5..6b57a6d4e626 100644
--- a/drivers/hwmon/jc42.c
+++ b/drivers/hwmon/jc42.c
@@ -451,20 +451,12 @@  static int jc42_detect(struct i2c_client *client, struct i2c_board_info *info)
 	return -ENODEV;
 }
 
-static const u32 jc42_temp_config[] = {
-	HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX | HWMON_T_CRIT |
-	HWMON_T_MAX_HYST | HWMON_T_CRIT_HYST |
-	HWMON_T_MIN_ALARM | HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM,
-	0
-};
-
-static const struct hwmon_channel_info jc42_temp = {
-	.type = hwmon_temp,
-	.config = jc42_temp_config,
-};
-
 static const struct hwmon_channel_info *jc42_info[] = {
-	&jc42_temp,
+	HWMON_CHANNEL_INFO(temp,
+			   HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX |
+			   HWMON_T_CRIT | HWMON_T_MAX_HYST |
+			   HWMON_T_CRIT_HYST | HWMON_T_MIN_ALARM |
+			   HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM),
 	NULL
 };