Re: [PATCH 12/23] usb-gadget/f_ac1: use per-attribute show and store methods

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Hi Christoph,

The commit title should be ".... usb-gadget/f_uac1 ..."
instead of ".... f_ac1 ..."

Reviewed-by: Andrzej Pietrasiewicz <andrzej.p@xxxxxxxxxxx>

W dniu 25.09.2015 o 15:49, Christoph Hellwig pisze:
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
  drivers/usb/gadget/function/f_uac1.c | 39 +++++++++++++++---------------------
  1 file changed, 16 insertions(+), 23 deletions(-)

diff --git a/drivers/usb/gadget/function/f_uac1.c b/drivers/usb/gadget/function/f_uac1.c
index 7856b33..ad01032 100644
--- a/drivers/usb/gadget/function/f_uac1.c
+++ b/drivers/usb/gadget/function/f_uac1.c
@@ -773,9 +773,6 @@ static inline struct f_uac1_opts *to_f_uac1_opts(struct config_item *item)
  			    func_inst.group);
  }

-CONFIGFS_ATTR_STRUCT(f_uac1_opts);
-CONFIGFS_ATTR_OPS(f_uac1_opts);
-
  static void f_uac1_attr_release(struct config_item *item)
  {
  	struct f_uac1_opts *opts = to_f_uac1_opts(item);
@@ -785,14 +782,13 @@ static void f_uac1_attr_release(struct config_item *item)

  static struct configfs_item_operations f_uac1_item_ops = {
  	.release	= f_uac1_attr_release,
-	.show_attribute	= f_uac1_opts_attr_show,
-	.store_attribute = f_uac1_opts_attr_store,
  };

  #define UAC1_INT_ATTRIBUTE(name)					\
-static ssize_t f_uac1_opts_##name##_show(struct f_uac1_opts *opts,	\
+static ssize_t f_uac1_opts_##name##_show(struct config_item *item,	\
  					 char *page)			\
  {									\
+	struct f_uac1_opts *opts = to_f_uac1_opts(item);		\
  	int result;							\
  									\
  	mutex_lock(&opts->lock);					\
@@ -802,9 +798,10 @@ static ssize_t f_uac1_opts_##name##_show(struct f_uac1_opts *opts,	\
  	return result;							\
  }									\
  									\
-static ssize_t f_uac1_opts_##name##_store(struct f_uac1_opts *opts,	\
+static ssize_t f_uac1_opts_##name##_store(struct config_item *item,		\
  					  const char *page, size_t len)	\
  {									\
+	struct f_uac1_opts *opts = to_f_uac1_opts(item);		\
  	int ret;							\
  	u32 num;							\
  									\
@@ -826,19 +823,17 @@ end:									\
  	return ret;							\
  }									\
  									\
-static struct f_uac1_opts_attribute f_uac1_opts_##name =		\
-	__CONFIGFS_ATTR(name, S_IRUGO | S_IWUSR,			\
-			f_uac1_opts_##name##_show,			\
-			f_uac1_opts_##name##_store)
+CONFIGFS_ATTR(f_uac1_opts_, name)

  UAC1_INT_ATTRIBUTE(req_buf_size);
  UAC1_INT_ATTRIBUTE(req_count);
  UAC1_INT_ATTRIBUTE(audio_buf_size);

  #define UAC1_STR_ATTRIBUTE(name)					\
-static ssize_t f_uac1_opts_##name##_show(struct f_uac1_opts *opts,	\
+static ssize_t f_uac1_opts_##name##_show(struct config_item *item,	\
  					 char *page)			\
  {									\
+	struct f_uac1_opts *opts = to_f_uac1_opts(item);		\
  	int result;							\
  									\
  	mutex_lock(&opts->lock);					\
@@ -848,9 +843,10 @@ static ssize_t f_uac1_opts_##name##_show(struct f_uac1_opts *opts,	\
  	return result;							\
  }									\
  									\
-static ssize_t f_uac1_opts_##name##_store(struct f_uac1_opts *opts,	\
+static ssize_t f_uac1_opts_##name##_store(struct config_item *item,	\
  					  const char *page, size_t len)	\
  {									\
+	struct f_uac1_opts *opts = to_f_uac1_opts(item);		\
  	int ret = -EBUSY;						\
  	char *tmp;							\
  									\
@@ -874,22 +870,19 @@ end:									\
  	return ret;							\
  }									\
  									\
-static struct f_uac1_opts_attribute f_uac1_opts_##name =		\
-	__CONFIGFS_ATTR(name, S_IRUGO | S_IWUSR,			\
-			f_uac1_opts_##name##_show,			\
-			f_uac1_opts_##name##_store)
+CONFIGFS_ATTR(f_uac1_opts_, name)

  UAC1_STR_ATTRIBUTE(fn_play);
  UAC1_STR_ATTRIBUTE(fn_cap);
  UAC1_STR_ATTRIBUTE(fn_cntl);

  static struct configfs_attribute *f_uac1_attrs[] = {
-	&f_uac1_opts_req_buf_size.attr,
-	&f_uac1_opts_req_count.attr,
-	&f_uac1_opts_audio_buf_size.attr,
-	&f_uac1_opts_fn_play.attr,
-	&f_uac1_opts_fn_cap.attr,
-	&f_uac1_opts_fn_cntl.attr,
+	&f_uac1_opts_attr_req_buf_size,
+	&f_uac1_opts_attr_req_count,
+	&f_uac1_opts_attr_audio_buf_size,
+	&f_uac1_opts_attr_fn_play,
+	&f_uac1_opts_attr_fn_cap,
+	&f_uac1_opts_attr_fn_cntl,
  	NULL,
  };



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