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usb-gadget/f_phonet: 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>
This commit is contained in:
Christoph Hellwig 2015-10-03 15:32:51 +02:00 committed by Nicholas Bellinger
parent 3da5e4c10c
commit 0736390bea
1 changed files with 4 additions and 21 deletions
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25
drivers/usb/gadget/function/f_phonet.c
View File

@ -589,21 +589,6 @@ static inline struct f_phonet_opts *to_f_phonet_opts(struct config_item *item)
func_inst.group);
}
CONFIGFS_ATTR_STRUCT(f_phonet_opts);
static ssize_t f_phonet_attr_show(struct config_item *item,
struct configfs_attribute *attr,
char *page)
{
struct f_phonet_opts *opts = to_f_phonet_opts(item);
struct f_phonet_opts_attribute *f_phonet_opts_attr =
container_of(attr, struct f_phonet_opts_attribute, attr);
ssize_t ret = 0;
if (f_phonet_opts_attr->show)
ret = f_phonet_opts_attr->show(opts, page);
return ret;
}
static void phonet_attr_release(struct config_item *item)
{
struct f_phonet_opts *opts = to_f_phonet_opts(item);
@ -613,19 +598,17 @@ static void phonet_attr_release(struct config_item *item)
static struct configfs_item_operations phonet_item_ops = {
.release = phonet_attr_release,
.show_attribute = f_phonet_attr_show,
};
static ssize_t f_phonet_ifname_show(struct f_phonet_opts *opts, char *page)
static ssize_t f_phonet_ifname_show(struct config_item *item, char *page)
{
return gether_get_ifname(opts->net, page, PAGE_SIZE);
return gether_get_ifname(to_f_phonet_opts(item)->net, page, PAGE_SIZE);
}
static struct f_phonet_opts_attribute f_phonet_ifname =
__CONFIGFS_ATTR_RO(ifname, f_phonet_ifname_show);
CONFIGFS_ATTR_RO(f_phonet_, ifname);
static struct configfs_attribute *phonet_attrs[] = {
&f_phonet_ifname.attr,
&f_phonet_attr_ifname,
NULL,
};