[PATCH] Use list_for_each_entry instead of list_for_each in sound/ossdrivers.

[Julia Lawall]

From: Julia Lawall <julia@xxxxxxx>

Combine list_for_each and list_entry into list_for_each_entry.

An excerpt of the semantic patch implementing these changes is as follows:

@ra@
type T,T1;
identifier I, x;
expression E, E1, E2;
iterator list_for_each_entry;
@@

  <... when != _Y(I)
- list_for_each(_X(I),E1)
+ list_for_each_entry(x,E1,E2)
  {
      ... when != \(_Y(I)\|_X(I)\|x=E\)
	  when != T1 x;
-     x = list_entry(_X(I),T,E2);
      ... when != \(_Y(I)\|_X(I)\|x=E\)
  }
  ...>

@@
type T;
identifier I;
expression E1, E2;
@@

- struct list_head *I;
+ T *I;
  <+... when != _Y(I)
- list_for_each(_X(I),E1)
+ list_for_each_entry(I,E1,E2)
  {
      <+... when != _Y(I)
-     list_entry(_X(I),T,E2)
+     I
      ...+>
  }
  ...+>

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

diff -u -p -b -B a/sound/oss/ac97_codec.c b/sound/oss/ac97_codec.c
--- a/sound/oss/ac97_codec.c 2007-06-02 22:32:47.000000000 +0200
+++ b/sound/oss/ac97_codec.c 2007-11-02 07:27:37.000000000 +0100
@@ -815,7 +815,6 @@ int ac97_probe_codec(struct ac97_codec *
 	int i;
 	char cidbuf[CODEC_ID_BUFSZ];
 	u16 f;
-	struct list_head *l;
 	struct ac97_driver *d;

 	/* wait for codec-ready state */
@@ -891,8 +890,7 @@ int ac97_probe_codec(struct ac97_codec *
 	mutex_lock(&codec_mutex);
 	list_add(&codec->list, &codecs);

-	list_for_each(l, &codec_drivers) {
-		d = list_entry(l, struct ac97_driver, list);
+	list_for_each_entry(d, &codec_drivers, list) {
 		if ((codec->model ^ d->codec_id) & d->codec_mask)
 			continue;
 		if(d->probe(codec, d) == 0)
@@ -1400,14 +1398,12 @@ EXPORT_SYMBOL(ac97_set_adc_rate);

 static int swap_headphone(int remove_master)
 {
-	struct list_head *l;
 	struct ac97_codec *c;

 	if (remove_master) {
 		mutex_lock(&codec_mutex);
-		list_for_each(l, &codecs)
+		list_for_each_entry(c, &codecs, list)
 		{
-			c = list_entry(l, struct ac97_codec, list);
 			if (supported_mixer(c, SOUND_MIXER_PHONEOUT))
 				c->supported_mixers &= ~SOUND_MASK_PHONEOUT;
 		}
diff -u -p -b -B a/sound/oss/swarm_cs4297a.c b/sound/oss/swarm_cs4297a.c
--- a/sound/oss/swarm_cs4297a.c 2007-06-02 22:32:47.000000000 +0200
+++ b/sound/oss/swarm_cs4297a.c 2007-11-02 07:27:46.000000000 +0100
@@ -1532,14 +1532,12 @@ static int cs4297a_open_mixdev(struct in
 {
 	int minor = iminor(inode);
 	struct cs4297a_state *s=NULL;
-	struct list_head *entry;

 	CS_DBGOUT(CS_FUNCTION | CS_OPEN, 4,
 		  printk(KERN_INFO "cs4297a: cs4297a_open_mixdev()+\n"));

-	list_for_each(entry, &cs4297a_devs)
+	list_for_each_entry(s, &cs4297a_devs, list)
 	{
-		s = list_entry(entry, struct cs4297a_state, list);
 		if(s->dev_mixer == minor)
 			break;
 	}
-
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