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Diffstat (limited to 'drivers/usb/gadget/u_ecm.h')
-rw-r--r--drivers/usb/gadget/u_ecm.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/usb/gadget/u_ecm.h b/drivers/usb/gadget/u_ecm.h
index 99b6b995988..262cc03cc2c 100644
--- a/drivers/usb/gadget/u_ecm.h
+++ b/drivers/usb/gadget/u_ecm.h
@@ -22,6 +22,15 @@ struct f_ecm_opts {
struct usb_function_instance func_inst;
struct net_device *net;
bool bound;
+
+ /*
+ * 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;
};
#endif /* U_ECM_H */