diff options
| author | Liu Shixin <liushixin2@huawei.com> | 2022-09-22 16:25:05 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-09-27 10:36:54 +0200 |
| commit | 5d5fb7c75f5a32b08089ab15dedcd5d83c809991 (patch) | |
| tree | 890b1ac7d57e44daf75870fccf8a8fb696c29e33 | |
| parent | usb: cdns3: remove dead code (diff) | |
| download | linux-5d5fb7c75f5a32b08089ab15dedcd5d83c809991.tar.xz linux-5d5fb7c75f5a32b08089ab15dedcd5d83c809991.zip | |
usb: ulpi: use DEFINE_SHOW_ATTRIBUTE to simplify ulpi_regs
Use DEFINE_SHOW_ATTRIBUTE helper macro to simplify the code.
No functional change.
Signed-off-by: Liu Shixin <liushixin2@huawei.com>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20220922142505.3248167-1-liushixin2@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/common/ulpi.c | 20 |
1 files changed, 3 insertions, 17 deletions
diff --git a/drivers/usb/common/ulpi.c b/drivers/usb/common/ulpi.c index 0a4f441aff8f..d7c8461976ce 100644 --- a/drivers/usb/common/ulpi.c +++ b/drivers/usb/common/ulpi.c @@ -233,7 +233,7 @@ err: return 0; } -static int ulpi_regs_read(struct seq_file *seq, void *data) +static int ulpi_regs_show(struct seq_file *seq, void *data) { struct ulpi *ulpi = seq->private; @@ -269,21 +269,7 @@ static int ulpi_regs_read(struct seq_file *seq, void *data) return 0; } - -static int ulpi_regs_open(struct inode *inode, struct file *f) -{ - struct ulpi *ulpi = inode->i_private; - - return single_open(f, ulpi_regs_read, ulpi); -} - -static const struct file_operations ulpi_regs_ops = { - .owner = THIS_MODULE, - .open = ulpi_regs_open, - .release = single_release, - .read = seq_read, - .llseek = seq_lseek -}; +DEFINE_SHOW_ATTRIBUTE(ulpi_regs); #define ULPI_ROOT debugfs_lookup(KBUILD_MODNAME, NULL) @@ -316,7 +302,7 @@ static int ulpi_register(struct device *dev, struct ulpi *ulpi) } root = debugfs_create_dir(dev_name(dev), ULPI_ROOT); - debugfs_create_file("regs", 0444, root, ulpi, &ulpi_regs_ops); + debugfs_create_file("regs", 0444, root, ulpi, &ulpi_regs_fops); dev_dbg(&ulpi->dev, "registered ULPI PHY: vendor %04x, product %04x\n", ulpi->id.vendor, ulpi->id.product); |