From 3755a273db8f523f8be6c18df9e1506faa93c664 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 3 Oct 2015 15:32:44 +0200 Subject: [PATCH] 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 Reviewed-by: Andrzej Pietrasiewicz Acked-by: Felipe Balbi Signed-off-by: Nicholas Bellinger --- drivers/usb/gadget/function/f_midi.c | 37 ++++++++++++---------------- 1 file 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, }; -- 2.20.1