Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Yangtao Li tiny.windzz@gmail.com --- drivers/staging/fwserial/fwserial.c | 32 +++---------------- drivers/staging/greybus/loopback.c | 16 ++-------- drivers/staging/rtlwifi/debug.c | 23 ++++--------- .../staging/unisys/visorhba/visorhba_main.c | 14 +------- .../interface/vchiq_arm/vchiq_debugfs.c | 14 +------- 5 files changed, 14 insertions(+), 85 deletions(-)

diff --git a/drivers/staging/fwserial/fwserial.c b/drivers/staging/fwserial/fwserial.c index 173f451b86b7..3e416f5bbcba 100644 --- a/drivers/staging/fwserial/fwserial.c +++ b/drivers/staging/fwserial/fwserial.c @@ -1458,7 +1458,7 @@ static int fwtty_proc_show(struct seq_file *m, void *v) return 0; }

-static int fwtty_debugfs_stats_show(struct seq_file *m, void *v) +static int fwtty_stats_show(struct seq_file *m, void *v) { struct fw_serial *serial = m->private; struct fwtty_port *port; @@ -1476,8 +1476,9 @@ static int fwtty_debugfs_stats_show(struct seq_file *m, void *v) } return 0; } +DEFINE_SHOW_ATTRIBUTE(fwtty_stats);

-static int fwtty_debugfs_peers_show(struct seq_file *m, void *v) +static int fwtty_peers_show(struct seq_file *m, void *v) { struct fw_serial *serial = m->private; struct fwtty_peer *peer; @@ -1491,32 +1492,7 @@ static int fwtty_debugfs_peers_show(struct seq_file *m, void *v) rcu_read_unlock(); return 0; } - -static int fwtty_stats_open(struct inode *inode, struct file *fp) -{ - return single_open(fp, fwtty_debugfs_stats_show, inode->i_private); -} - -static int fwtty_peers_open(struct inode *inode, struct file *fp) -{ - return single_open(fp, fwtty_debugfs_peers_show, inode->i_private); -} - -static const struct file_operations fwtty_stats_fops = { - .owner = THIS_MODULE, - .open = fwtty_stats_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static const struct file_operations fwtty_peers_fops = { - .owner = THIS_MODULE, - .open = fwtty_peers_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; +DEFINE_SHOW_ATTRIBUTE(fwtty_peers);

static const struct tty_port_operations fwtty_port_ops = { .dtr_rts = fwtty_port_dtr_rts, diff --git a/drivers/staging/greybus/loopback.c b/drivers/staging/greybus/loopback.c index 7080294f705c..33cda7527714 100644 --- a/drivers/staging/greybus/loopback.c +++ b/drivers/staging/greybus/loopback.c @@ -973,19 +973,7 @@ static int gb_loopback_dbgfs_latency_show(struct seq_file *s, void *unused) return gb_loopback_dbgfs_latency_show_common(s, &gb->kfifo_lat, &gb->mutex); } - -static int gb_loopback_latency_open(struct inode *inode, struct file *file) -{ - return single_open(file, gb_loopback_dbgfs_latency_show, - inode->i_private); -} - -static const struct file_operations gb_loopback_debugfs_latency_ops = { - .open = gb_loopback_latency_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; +DEFINE_SHOW_ATTRIBUTE(gb_loopback_dbgfs_latency);

static int gb_loopback_bus_id_compare(void *priv, struct list_head *lha, struct list_head *lhb) @@ -1076,7 +1064,7 @@ static int gb_loopback_probe(struct gb_bundle *bundle, snprintf(name, sizeof(name), "raw_latency_%s", dev_name(&connection->bundle->dev)); gb->file = debugfs_create_file(name, S_IFREG | 0444, gb_dev.root, gb, - &gb_loopback_debugfs_latency_ops); + &gb_loopback_dbgfs_latency_fops);

gb->id = ida_simple_get(&loopback_ida, 0, 0, GFP_KERNEL); if (gb->id < 0) { diff --git a/drivers/staging/rtlwifi/debug.c b/drivers/staging/rtlwifi/debug.c index 8999feda29b4..543889923864 100644 --- a/drivers/staging/rtlwifi/debug.c +++ b/drivers/staging/rtlwifi/debug.c @@ -79,24 +79,13 @@ struct rtl_debugfs_priv {

static struct dentry *debugfs_topdir;

-static int rtl_debug_get_common(struct seq_file *m, void *v) +static int common_show(struct seq_file *m, void *v) { struct rtl_debugfs_priv *debugfs_priv = m->private;

return debugfs_priv->cb_read(m, v); } - -static int dl_debug_open_common(struct inode *inode, struct file *file) -{ - return single_open(file, rtl_debug_get_common, inode->i_private); -} - -static const struct file_operations file_ops_common = { - .open = dl_debug_open_common, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; +DEFINE_SHOW_ATTRIBUTE(common);

static int rtl_debug_get_mac_page(struct seq_file *m, void *v) { @@ -439,7 +428,7 @@ static ssize_t rtl_debugfs_common_write(struct file *filp, return debugfs_priv->cb_write(filp, buffer, count, loff); }

-static const struct file_operations file_ops_common_write = { +static const struct file_operations common_write_fops = { .owner = THIS_MODULE, .write = rtl_debugfs_common_write, .open = simple_open, @@ -488,7 +477,7 @@ static int rtl_debugfs_open_rw(struct inode *inode, struct file *filp) int ret = 0;

if (filp->f_mode & FMODE_READ) - ret = single_open(filp, rtl_debug_get_common, inode->i_private); + ret = single_open(filp, common_show, inode->i_private); else filp->private_data = inode->i_private;

@@ -509,7 +498,7 @@ static struct rtl_debugfs_priv rtl_debug_priv_phydm_cmd = { .cb_data = 0, };

-static const struct file_operations file_ops_common_rw = { +static const struct file_operations common_rw_fops = { .owner = THIS_MODULE, .open = rtl_debugfs_open_rw, .release = rtl_debugfs_close_rw, @@ -523,7 +512,7 @@ static const struct file_operations file_ops_common_rw = { rtl_debug_priv_ ##name.rtlpriv = rtlpriv; \ debugfs_create_file(#name, mode, parent, \ &rtl_debug_priv_ ##name, \ - &file_ops_ ##fopname); \ + &fopname ##fops); \ } while (0)

#define RTL_DEBUGFS_ADD(name) \ diff --git a/drivers/staging/unisys/visorhba/visorhba_main.c b/drivers/staging/unisys/visorhba/visorhba_main.c index 4fc521c51c0e..d0fed63c13a2 100644 --- a/drivers/staging/unisys/visorhba/visorhba_main.c +++ b/drivers/staging/unisys/visorhba/visorhba_main.c @@ -681,19 +681,7 @@ static int info_debugfs_show(struct seq_file *seq, void *v)

return 0; } - -static int info_debugfs_open(struct inode *inode, struct file *file) -{ - return single_open(file, info_debugfs_show, inode->i_private); -} - -static const struct file_operations info_debugfs_fops = { - .owner = THIS_MODULE, - .open = info_debugfs_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; +DEFINE_SHOW_ATTRIBUTE(info_debugfs);

/* * complete_taskmgmt_command - Complete task management diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_debugfs.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_debugfs.c index 6a9e71a61142..46ba21967820 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_debugfs.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_debugfs.c @@ -153,19 +153,7 @@ static int debugfs_usecount_show(struct seq_file *f, void *offset)

return 0; } - -static int debugfs_usecount_open(struct inode *inode, struct file *file) -{ - return single_open(file, debugfs_usecount_show, inode->i_private); -} - -static const struct file_operations debugfs_usecount_fops = { - .owner = THIS_MODULE, - .open = debugfs_usecount_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; +DEFINE_SHOW_ATTRIBUTE(debugfs_usecount);

static int debugfs_trace_show(struct seq_file *f, void *offset) {