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| author | Christoph Hellwig <hch@lst.de> | 2015-10-03 15:32:52 +0200 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2015-10-13 22:16:10 -0700 |
| commit | 0b4be4fa878780a15a953577499eb69839942956 (patch) | |
| tree | b3b3acc0cf48cb5ee1b9a42cafceefa34786f322 /drivers/usb | |
| parent | 0736390bea65cac63bed9671a957031c068a60e7 (diff) | |
| download | linux-0b4be4fa878780a15a953577499eb69839942956.tar.gz linux-0b4be4fa878780a15a953577499eb69839942956.tar.bz2 linux-0b4be4fa878780a15a953577499eb69839942956.zip | |
usb-gadget/f_serial: 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_serial.c | 26 |
1 files changed, 4 insertions, 22 deletions
diff --git a/drivers/usb/gadget/function/f_serial.c b/drivers/usb/gadget/function/f_serial.c index 1d162e200e83..ec837f4ea416 100644 --- a/drivers/usb/gadget/function/f_serial.c +++ b/drivers/usb/gadget/function/f_serial.c @@ -266,22 +266,6 @@ static inline struct f_serial_opts *to_f_serial_opts(struct config_item *item) func_inst.group); } -CONFIGFS_ATTR_STRUCT(f_serial_opts); -static ssize_t f_serial_attr_show(struct config_item *item, - struct configfs_attribute *attr, - char *page) -{ - struct f_serial_opts *opts = to_f_serial_opts(item); - struct f_serial_opts_attribute *f_serial_opts_attr = - container_of(attr, struct f_serial_opts_attribute, attr); - ssize_t ret = 0; - - if (f_serial_opts_attr->show) - ret = f_serial_opts_attr->show(opts, page); - - return ret; -} - static void serial_attr_release(struct config_item *item) { struct f_serial_opts *opts = to_f_serial_opts(item); @@ -291,19 +275,17 @@ static void serial_attr_release(struct config_item *item) static struct configfs_item_operations serial_item_ops = { .release = serial_attr_release, - .show_attribute = f_serial_attr_show, }; -static ssize_t f_serial_port_num_show(struct f_serial_opts *opts, char *page) +static ssize_t f_serial_port_num_show(struct config_item *item, char *page) { - return sprintf(page, "%u\n", opts->port_num); + return sprintf(page, "%u\n", to_f_serial_opts(item)->port_num); } -static struct f_serial_opts_attribute f_serial_port_num = - __CONFIGFS_ATTR_RO(port_num, f_serial_port_num_show); +CONFIGFS_ATTR_RO(f_serial_, port_num); static struct configfs_attribute *acm_attrs[] = { - &f_serial_port_num.attr, + &f_serial_attr_port_num, NULL, }; |