diff options
author | Christoph Hellwig <hch@lst.de> | 2015-10-03 15:32:40 +0200 |
---|---|---|
committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2015-10-13 22:13:54 -0700 |
commit | da4e527cd8850712bb705f4c41f0839705ab7c98 (patch) | |
tree | cada3e23f83f8df4532fa955795949df28ba793e /drivers/usb | |
parent | 76e0da34c7cec5a7dc94667326a948de2e9c8c8d (diff) | |
download | op-kernel-dev-da4e527cd8850712bb705f4c41f0839705ab7c98.zip op-kernel-dev-da4e527cd8850712bb705f4c41f0839705ab7c98.tar.gz |
usb-gadget/f_hid: 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')
-rw-r--r-- | drivers/usb/gadget/function/f_hid.c | 34 |
1 files changed, 14 insertions, 20 deletions
diff --git a/drivers/usb/gadget/function/f_hid.c b/drivers/usb/gadget/function/f_hid.c index 6df9715..d15b061 100644 --- a/drivers/usb/gadget/function/f_hid.c +++ b/drivers/usb/gadget/function/f_hid.c @@ -713,9 +713,6 @@ static inline struct f_hid_opts *to_f_hid_opts(struct config_item *item) func_inst.group); } -CONFIGFS_ATTR_STRUCT(f_hid_opts); -CONFIGFS_ATTR_OPS(f_hid_opts); - static void hid_attr_release(struct config_item *item) { struct f_hid_opts *opts = to_f_hid_opts(item); @@ -725,13 +722,12 @@ static void hid_attr_release(struct config_item *item) static struct configfs_item_operations hidg_item_ops = { .release = hid_attr_release, - .show_attribute = f_hid_opts_attr_show, - .store_attribute = f_hid_opts_attr_store, }; #define F_HID_OPT(name, prec, limit) \ -static ssize_t f_hid_opts_##name##_show(struct f_hid_opts *opts, char *page)\ +static ssize_t f_hid_opts_##name##_show(struct config_item *item, char *page)\ { \ + struct f_hid_opts *opts = to_f_hid_opts(item); \ int result; \ \ mutex_lock(&opts->lock); \ @@ -741,9 +737,10 @@ static ssize_t f_hid_opts_##name##_show(struct f_hid_opts *opts, char *page)\ return result; \ } \ \ -static ssize_t f_hid_opts_##name##_store(struct f_hid_opts *opts, \ +static ssize_t f_hid_opts_##name##_store(struct config_item *item, \ const char *page, size_t len) \ { \ + struct f_hid_opts *opts = to_f_hid_opts(item); \ int ret; \ u##prec num; \ \ @@ -769,16 +766,15 @@ end: \ return ret; \ } \ \ -static struct f_hid_opts_attribute f_hid_opts_##name = \ - __CONFIGFS_ATTR(name, S_IRUGO | S_IWUSR, f_hid_opts_##name##_show,\ - f_hid_opts_##name##_store) +CONFIGFS_ATTR(f_hid_opts_, name) F_HID_OPT(subclass, 8, 255); F_HID_OPT(protocol, 8, 255); F_HID_OPT(report_length, 16, 65535); -static ssize_t f_hid_opts_report_desc_show(struct f_hid_opts *opts, char *page) +static ssize_t f_hid_opts_report_desc_show(struct config_item *item, char *page) { + struct f_hid_opts *opts = to_f_hid_opts(item); int result; mutex_lock(&opts->lock); @@ -789,9 +785,10 @@ static ssize_t f_hid_opts_report_desc_show(struct f_hid_opts *opts, char *page) return result; } -static ssize_t f_hid_opts_report_desc_store(struct f_hid_opts *opts, +static ssize_t f_hid_opts_report_desc_store(struct config_item *item, const char *page, size_t len) { + struct f_hid_opts *opts = to_f_hid_opts(item); int ret = -EBUSY; char *d; @@ -818,16 +815,13 @@ end: return ret; } -static struct f_hid_opts_attribute f_hid_opts_report_desc = - __CONFIGFS_ATTR(report_desc, S_IRUGO | S_IWUSR, - f_hid_opts_report_desc_show, - f_hid_opts_report_desc_store); +CONFIGFS_ATTR(f_hid_opts_, report_desc); static struct configfs_attribute *hid_attrs[] = { - &f_hid_opts_subclass.attr, - &f_hid_opts_protocol.attr, - &f_hid_opts_report_length.attr, - &f_hid_opts_report_desc.attr, + &f_hid_opts_attr_subclass, + &f_hid_opts_attr_protocol, + &f_hid_opts_attr_report_length, + &f_hid_opts_attr_report_desc, NULL, }; |