diff mbox series

[02/17] hwmon: (ina3221) Use HWMON_CHANNEL_INFO macro

Message ID 1554135577-11889-3-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.

The patch was post-edited to retain comments.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/ina3221.c | 48 +++++++++++++++---------------------------------
 1 file changed, 15 insertions(+), 33 deletions(-)
diff mbox series

Patch

diff --git a/drivers/hwmon/ina3221.c b/drivers/hwmon/ina3221.c
index 3626b87a5fd2..e6f43df0435c 100644
--- a/drivers/hwmon/ina3221.c
+++ b/drivers/hwmon/ina3221.c
@@ -458,44 +458,26 @@  static umode_t ina3221_is_visible(const void *drvdata,
 	}
 }
 
-static const u32 ina3221_in_config[] = {
-	/* 0: dummy, skipped in is_visible */
-	HWMON_I_INPUT,
-	/* 1-3: input voltage Channels */
-	HWMON_I_INPUT | HWMON_I_ENABLE | HWMON_I_LABEL,
-	HWMON_I_INPUT | HWMON_I_ENABLE | HWMON_I_LABEL,
-	HWMON_I_INPUT | HWMON_I_ENABLE | HWMON_I_LABEL,
-	/* 4-6: shunt voltage Channels */
-	HWMON_I_INPUT,
-	HWMON_I_INPUT,
-	HWMON_I_INPUT,
-	0
-};
-
-static const struct hwmon_channel_info ina3221_in = {
-	.type = hwmon_in,
-	.config = ina3221_in_config,
-};
-
 #define INA3221_HWMON_CURR_CONFIG (HWMON_C_INPUT | \
 				   HWMON_C_CRIT | HWMON_C_CRIT_ALARM | \
 				   HWMON_C_MAX | HWMON_C_MAX_ALARM)
 
-static const u32 ina3221_curr_config[] = {
-	INA3221_HWMON_CURR_CONFIG,
-	INA3221_HWMON_CURR_CONFIG,
-	INA3221_HWMON_CURR_CONFIG,
-	0
-};
-
-static const struct hwmon_channel_info ina3221_curr = {
-	.type = hwmon_curr,
-	.config = ina3221_curr_config,
-};
-
 static const struct hwmon_channel_info *ina3221_info[] = {
-	&ina3221_in,
-	&ina3221_curr,
+	HWMON_CHANNEL_INFO(in,
+			   /* 0: dummy, skipped in is_visible */
+			   HWMON_I_INPUT,
+			   /* 1-3: input voltage Channels */
+			   HWMON_I_INPUT | HWMON_I_ENABLE | HWMON_I_LABEL,
+			   HWMON_I_INPUT | HWMON_I_ENABLE | HWMON_I_LABEL,
+			   HWMON_I_INPUT | HWMON_I_ENABLE | HWMON_I_LABEL,
+			   /* 4-6: shunt voltage Channels */
+			   HWMON_I_INPUT,
+			   HWMON_I_INPUT,
+			   HWMON_I_INPUT),
+	HWMON_CHANNEL_INFO(curr,
+			   INA3221_HWMON_CURR_CONFIG,
+			   INA3221_HWMON_CURR_CONFIG,
+			   INA3221_HWMON_CURR_CONFIG),
 	NULL
 };