[PATCH 3/7] usb: gadget: u_ncm: Add kernel-doc comments for struct f_ncm_opts

From: Kuen-Han Tsai

Date: Fri Mar 20 2026 - 04:59:26 EST


Provide kernel-doc descriptions for the fields in struct f_ncm_opts to
improve code readability and maintainability.

Signed-off-by: Kuen-Han Tsai <khtsai@xxxxxxxxxx>
---
drivers/usb/gadget/function/u_ncm.h | 21 +++++++++++++++------
1 file changed, 15 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/gadget/function/u_ncm.h b/drivers/usb/gadget/function/u_ncm.h
index b1f3db8b68c1..ce2f6358688a 100644
--- a/drivers/usb/gadget/function/u_ncm.h
+++ b/drivers/usb/gadget/function/u_ncm.h
@@ -15,6 +15,20 @@

#include <linux/usb/composite.h>

+/**
+ * struct f_ncm_opts - NCM function options
+ * @func_inst: USB function instance.
+ * @net: The net_device associated with the NCM function.
+ * @bind_count: Tracks the number of configurations the NCM function is
+ * bound to, preventing double-registration of the @net device.
+ * @ncm_interf_group: ConfigFS group for NCM interface.
+ * @ncm_os_desc: USB OS descriptor for NCM.
+ * @ncm_ext_compat_id: Extended compatibility ID.
+ * @lock: Protects the data from concurrent access by configfs read/write
+ * and create symlink/remove symlink operations.
+ * @refcnt: Reference counter for the function instance.
+ * @max_segment_size: Maximum segment size.
+ */
struct f_ncm_opts {
struct usb_function_instance func_inst;
struct net_device *net;
@@ -23,12 +37,7 @@ struct f_ncm_opts {
struct config_group *ncm_interf_group;
struct usb_os_desc ncm_os_desc;
char ncm_ext_compat_id[16];
- /*
- * Read/write access to configfs attributes is handled by configfs.
- *
- * This is to protect the data from concurrent access by read/write
- * and create symlink/remove symlink.
- */
+
struct mutex lock;
int refcnt;


--
2.53.0.959.g497ff81fa9-goog