[2/4] dmaengine: mic_x100_dma: convert to DEFINE_SHOW_ATTRIBUTE

Commit Message

Yangtao Li Dec. 5, 2018, 4:18 p.m. UTC

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Yangtao Li <[e-mail]>
---
 drivers/dma/mic_x100_dma.c | 22 +++-------------------
 1 file changed, 3 insertions(+), 19 deletions(-)

Patch

diff --git a/drivers/dma/mic_x100_dma.c b/drivers/dma/mic_x100_dma.c
index adfd316db1a8..6a91e28d537d 100644
--- a/drivers/dma/mic_x100_dma.c
+++ b/drivers/dma/mic_x100_dma.c
@@ -676,7 +676,7 @@  static void mic_dma_dev_unreg(struct mic_dma_device *mic_dma_dev)
 }
 
 /* DEBUGFS CODE */
-static int mic_dma_reg_seq_show(struct seq_file *s, void *pos)
+static int mic_dma_reg_show(struct seq_file *s, void *pos)
 {
 	struct mic_dma_device *mic_dma_dev = s->private;
 	int i, chan_num, first_chan = mic_dma_dev->start_ch;
@@ -707,23 +707,7 @@  static int mic_dma_reg_seq_show(struct seq_file *s, void *pos)
 	return 0;
 }
 
-static int mic_dma_reg_debug_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, mic_dma_reg_seq_show, inode->i_private);
-}
-
-static int mic_dma_reg_debug_release(struct inode *inode, struct file *file)
-{
-	return single_release(inode, file);
-}
-
-static const struct file_operations mic_dma_reg_ops = {
-	.owner   = THIS_MODULE,
-	.open    = mic_dma_reg_debug_open,
-	.read    = seq_read,
-	.llseek  = seq_lseek,
-	.release = mic_dma_reg_debug_release
-};
+DEFINE_SHOW_ATTRIBUTE(mic_dma_reg);
 
 /* Debugfs parent dir */
 static struct dentry *mic_dma_dbg;
@@ -747,7 +731,7 @@  static int mic_dma_driver_probe(struct mbus_device *mbdev)
 		if (mic_dma_dev->dbg_dir)
 			debugfs_create_file("mic_dma_reg", 0444,
 					    mic_dma_dev->dbg_dir, mic_dma_dev,
-					    &mic_dma_reg_ops);
+					    &mic_dma_reg_fops);
 	}
 	return 0;
 }