From: Guenter Roeck <linux@roeck-us.net>
Date: Sun, 31 Mar 2019 17:53:47 +0000 (-0700)
Subject: hwmon: (jc42) Use HWMON_CHANNEL_INFO macro
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=1eade10fe94e75cd638aa61a3161c82ad625f69b;p=linux.git

hwmon: (jc42) Use HWMON_CHANNEL_INFO macro

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>
---

diff --git a/drivers/hwmon/jc42.c b/drivers/hwmon/jc42.c
index 4fa482ae0eb50..6b57a6d4e6261 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
 };