[PATCH] btrfs: zoned: convert comment to kernel-doc format

[Randy Dunlap]

Complete kernel-doc notation for btrfs_zone_activate() to prevent
kernel-doc warnings:

zoned.c:1784: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
 * Activate block group and underlying device zones
zoned.c:1784: warning: missing initial short description on line:
 * Activate block group and underlying device zones

Fixes: afba2bc036b0 ("btrfs: zoned: implement active zone tracking")
Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Cc: Naohiro Aota <naohiro.aota@xxxxxxx>
Cc: David Sterba <dsterba@xxxxxxxx>
Cc: Chris Mason <clm@xxxxxx>
Cc: Josef Bacik <josef@xxxxxxxxxxxxxx>
Cc: linux-btrfs@xxxxxxxxxxxxxxx
---
 fs/btrfs/zoned.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- linux-next-20211202.orig/fs/btrfs/zoned.c
+++ linux-next-20211202/fs/btrfs/zoned.c
@@ -1781,7 +1781,7 @@ struct btrfs_device *btrfs_zoned_get_dev
 }
 
 /**
- * Activate block group and underlying device zones
+ * btrfs_zone_activate - Activate block group and underlying device zones
  *
  * @block_group: the block group to activate
  *