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authorChristoph Hellwig <hch@lst.de>2015-10-03 15:32:44 +0200
committerNicholas Bellinger <nab@linux-iscsi.org>2015-10-13 22:14:40 -0700
commit3755a273db8f523f8be6c18df9e1506faa93c664 (patch)
tree080866d14b56ee8a3e1dff7b3c66c37537780075 /drivers/usb/gadget
parent75ab2256a7d05128f8aa088cdde961d8029bcd55 (diff)
usb-gadget/f_midi: use per-attribute show and store methods
To simplify the configfs interface and remove boilerplate code that also causes binary bloat. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Acked-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/usb/gadget')
-rw-r--r--drivers/usb/gadget/function/f_midi.c37
1 files changed, 16 insertions, 21 deletions
diff --git a/drivers/usb/gadget/function/f_midi.c b/drivers/usb/gadget/function/f_midi.c
index a287a4829273..0e2b8eda254e 100644
--- a/drivers/usb/gadget/function/f_midi.c
+++ b/drivers/usb/gadget/function/f_midi.c
@@ -906,9 +906,6 @@ static inline struct f_midi_opts *to_f_midi_opts(struct config_item *item)
func_inst.group);
}
-CONFIGFS_ATTR_STRUCT(f_midi_opts);
-CONFIGFS_ATTR_OPS(f_midi_opts);
-
static void midi_attr_release(struct config_item *item)
{
struct f_midi_opts *opts = to_f_midi_opts(item);
@@ -918,13 +915,12 @@ static void midi_attr_release(struct config_item *item)
static struct configfs_item_operations midi_item_ops = {
.release = midi_attr_release,
- .show_attribute = f_midi_opts_attr_show,
- .store_attribute = f_midi_opts_attr_store,
};
#define F_MIDI_OPT(name, test_limit, limit) \
-static ssize_t f_midi_opts_##name##_show(struct f_midi_opts *opts, char *page) \
+static ssize_t f_midi_opts_##name##_show(struct config_item *item, char *page) \
{ \
+ struct f_midi_opts *opts = to_f_midi_opts(item); \
int result; \
\
mutex_lock(&opts->lock); \
@@ -934,9 +930,10 @@ static ssize_t f_midi_opts_##name##_show(struct f_midi_opts *opts, char *page) \
return result; \
} \
\
-static ssize_t f_midi_opts_##name##_store(struct f_midi_opts *opts, \
+static ssize_t f_midi_opts_##name##_store(struct config_item *item, \
const char *page, size_t len) \
{ \
+ struct f_midi_opts *opts = to_f_midi_opts(item); \
int ret; \
u32 num; \
\
@@ -962,9 +959,7 @@ end: \
return ret; \
} \
\
-static struct f_midi_opts_attribute f_midi_opts_##name = \
- __CONFIGFS_ATTR(name, S_IRUGO | S_IWUSR, f_midi_opts_##name##_show, \
- f_midi_opts_##name##_store)
+CONFIGFS_ATTR(f_midi_opts_, name);
F_MIDI_OPT(index, true, SNDRV_CARDS);
F_MIDI_OPT(buflen, false, 0);
@@ -972,8 +967,9 @@ F_MIDI_OPT(qlen, false, 0);
F_MIDI_OPT(in_ports, true, MAX_PORTS);
F_MIDI_OPT(out_ports, true, MAX_PORTS);
-static ssize_t f_midi_opts_id_show(struct f_midi_opts *opts, char *page)
+static ssize_t f_midi_opts_id_show(struct config_item *item, char *page)
{
+ struct f_midi_opts *opts = to_f_midi_opts(item);
int result;
mutex_lock(&opts->lock);
@@ -989,9 +985,10 @@ static ssize_t f_midi_opts_id_show(struct f_midi_opts *opts, char *page)
return result;
}
-static ssize_t f_midi_opts_id_store(struct f_midi_opts *opts,
+static ssize_t f_midi_opts_id_store(struct config_item *item,
const char *page, size_t len)
{
+ struct f_midi_opts *opts = to_f_midi_opts(item);
int ret;
char *c;
@@ -1016,17 +1013,15 @@ end:
return ret;
}
-static struct f_midi_opts_attribute f_midi_opts_id =
- __CONFIGFS_ATTR(id, S_IRUGO | S_IWUSR, f_midi_opts_id_show,
- f_midi_opts_id_store);
+CONFIGFS_ATTR(f_midi_opts_, id);
static struct configfs_attribute *midi_attrs[] = {
- &f_midi_opts_index.attr,
- &f_midi_opts_buflen.attr,
- &f_midi_opts_qlen.attr,
- &f_midi_opts_in_ports.attr,
- &f_midi_opts_out_ports.attr,
- &f_midi_opts_id.attr,
+ &f_midi_opts_attr_index,
+ &f_midi_opts_attr_buflen,
+ &f_midi_opts_attr_qlen,
+ &f_midi_opts_attr_in_ports,
+ &f_midi_opts_attr_out_ports,
+ &f_midi_opts_attr_id,
NULL,
};