proc: introduce proc_create_single{,_data}

Variants of proc_create{,_data} that directly take a seq_file show
callback and drastically reduces the boilerplate code in the callers.

All trivial callers converted over.

Signed-off-by: Christoph Hellwig <hch@lst.de>

1 files changed, 2 insertions, 15 deletions

diff --git a/drivers/block/ps3vram.c b/drivers/block/ps3vram.c
index 6a55959cbf78..8fa4533a1249 100644
--- a/drivers/block/ps3vram.c
+++ b/drivers/block/ps3vram.c
@@ -521,26 +521,13 @@ static int ps3vram_proc_show(struct seq_file *m, void *v)
 	return 0;
 }
 
-static int ps3vram_proc_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, ps3vram_proc_show, PDE_DATA(inode));
-}
-
-static const struct file_operations ps3vram_proc_fops = {
-	.owner		= THIS_MODULE,
-	.open		= ps3vram_proc_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
-
 static void ps3vram_proc_init(struct ps3_system_bus_device *dev)
 {
 	struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
 	struct proc_dir_entry *pde;
 
-	pde = proc_create_data(DEVICE_NAME, 0444, NULL, &ps3vram_proc_fops,
-			       priv);
+	pde = proc_create_single_data(DEVICE_NAME, 0444, NULL,
+			ps3vram_proc_show, priv);
 	if (!pde)
 		dev_warn(&dev->core, "failed to create /proc entry\n");
 }