usb: gadget: add missing MODULE_DESCRIPTION() macros

make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/gadget/libcomposite.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/gadget/function/usb_f_acm.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/gadget/function/usb_f_ss_lb.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/gadget/function/u_serial.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/gadget/function/usb_f_serial.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/gadget/function/usb_f_obex.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/gadget/function/u_ether.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/gadget/function/usb_f_ncm.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/gadget/function/usb_f_ecm.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/gadget/function/usb_f_phonet.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/gadget/function/usb_f_eem.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/gadget/function/usb_f_ecm_subset.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/gadget/function/usb_f_rndis.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/gadget/function/usb_f_mass_storage.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/gadget/function/usb_f_fs.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/gadget/function/usb_f_uac1.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/gadget/function/usb_f_uac1_legacy.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/gadget/function/usb_f_uac2.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/gadget/function/usb_f_uvc.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/gadget/function/usb_f_midi.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/gadget/function/usb_f_midi2.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/gadget/function/usb_f_hid.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/gadget/function/usb_f_printer.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/gadget/function/usb_f_tcm.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/gadget/legacy/g_zero.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/gadget/legacy/g_midi.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/gadget/legacy/g_dbgp.o

Add the missing invocations of the MODULE_DESCRIPTION() macro.

Signed-off-by: Jeff Johnson <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/usb/gadget/composite.c

···
 }
 EXPORT_SYMBOL_GPL(usb_composite_overwrite_options);
 
+MODULE_DESCRIPTION("infrastructure for Composite USB Gadgets");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("David Brownell");

drivers/usb/gadget/function/f_acm.c

···
 	return &opts->func_inst;
 }
 DECLARE_USB_FUNCTION_INIT(acm, acm_alloc_instance, acm_alloc_func);
+MODULE_DESCRIPTION("USB CDC serial (ACM) function driver");
 MODULE_LICENSE("GPL");

drivers/usb/gadget/function/f_ecm.c

···
 }
 
 DECLARE_USB_FUNCTION_INIT(ecm, ecm_alloc_inst, ecm_alloc);
+MODULE_DESCRIPTION("USB CDC Ethernet (ECM) link function driver");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("David Brownell");

drivers/usb/gadget/function/f_eem.c

···
 }
 
 DECLARE_USB_FUNCTION_INIT(eem, eem_alloc_inst, eem_alloc);
+MODULE_DESCRIPTION("USB CDC Ethernet (EEM) link function driver");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("David Brownell");

drivers/usb/gadget/function/f_fs.c

···
 }
 
 DECLARE_USB_FUNCTION_INIT(ffs, ffs_alloc_inst, ffs_alloc);
+MODULE_DESCRIPTION("user mode file system API for USB composite function controllers");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Michal Nazarewicz");

drivers/usb/gadget/function/f_hid.c

···
 }
 
 DECLARE_USB_FUNCTION_INIT(hid, hidg_alloc_inst, hidg_alloc);
+MODULE_DESCRIPTION("USB HID function driver");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Fabien Chouteau");
 

drivers/usb/gadget/function/f_loopback.c

···
 	usb_function_unregister(&Loopbackusb_func);
 }
 
+MODULE_DESCRIPTION("USB peripheral loopback configuration driver");
 MODULE_LICENSE("GPL");

drivers/usb/gadget/function/f_mass_storage.c

···
 }
 
 DECLARE_USB_FUNCTION_INIT(mass_storage, fsg_alloc_inst, fsg_alloc);
+MODULE_DESCRIPTION("Mass Storage USB Composite Function");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Michal Nazarewicz");
 

drivers/usb/gadget/function/f_midi.c

···
 #include "u_midi.h"
 
 MODULE_AUTHOR("Ben Williamson");
+MODULE_DESCRIPTION("USB MIDI class function driver");
 MODULE_LICENSE("GPL v2");
 
 static const char f_midi_shortname[] = "f_midi";

drivers/usb/gadget/function/f_midi2.c

···
 
 DECLARE_USB_FUNCTION_INIT(midi2, f_midi2_alloc_inst, f_midi2_alloc);
 
+MODULE_DESCRIPTION("USB MIDI 2.0 class function driver");
 MODULE_LICENSE("GPL");

drivers/usb/gadget/function/f_ncm.c

···
 }
 
 DECLARE_USB_FUNCTION_INIT(ncm, ncm_alloc_inst, ncm_alloc);
+MODULE_DESCRIPTION("USB CDC Network (NCM) link function driver");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Yauheni Kaliuta");

drivers/usb/gadget/function/f_obex.c

···
 
 DECLARE_USB_FUNCTION_INIT(obex, obex_alloc_inst, obex_alloc);
 MODULE_AUTHOR("Felipe Balbi");
+MODULE_DESCRIPTION("USB CDC OBEX function driver");
 MODULE_LICENSE("GPL");

drivers/usb/gadget/function/f_phonet.c

···
 
 DECLARE_USB_FUNCTION_INIT(phonet, phonet_alloc_inst, phonet_alloc);
 MODULE_AUTHOR("Rémi Denis-Courmont");
+MODULE_DESCRIPTION("USB CDC Phonet function");
 MODULE_LICENSE("GPL");

drivers/usb/gadget/function/f_printer.c

···
 }
 
 DECLARE_USB_FUNCTION_INIT(printer, gprinter_alloc_inst, gprinter_alloc);
+MODULE_DESCRIPTION("USB printer function driver");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Craig Nadler");
 

drivers/usb/gadget/function/f_rndis.c

···
 }
 
 DECLARE_USB_FUNCTION_INIT(rndis, rndis_alloc_inst, rndis_alloc);
+MODULE_DESCRIPTION("RNDIS link function driver");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("David Brownell");

drivers/usb/gadget/function/f_serial.c

···
 }
 
 DECLARE_USB_FUNCTION_INIT(gser, gser_alloc_inst, gser_alloc);
+MODULE_DESCRIPTION("generic USB serial function driver");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Al Borchers");
 MODULE_AUTHOR("David Brownell");

drivers/usb/gadget/function/f_sourcesink.c

···
 module_init(sslb_modinit);
 module_exit(sslb_modexit);
 
+MODULE_DESCRIPTION("USB peripheral source/sink configuration driver");
 MODULE_LICENSE("GPL");

drivers/usb/gadget/function/f_subset.c

···
 }
 
 DECLARE_USB_FUNCTION_INIT(geth, geth_alloc_inst, geth_alloc);
+MODULE_DESCRIPTION("\"CDC Subset\" Ethernet link function driver");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("David Brownell");

drivers/usb/gadget/function/f_tcm.c

···
 }
 module_exit(tcm_exit);
 
+MODULE_DESCRIPTION("Target based USB-Gadget");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Sebastian Andrzej Siewior");

drivers/usb/gadget/function/f_uac1.c

···
 }
 
 DECLARE_USB_FUNCTION_INIT(uac1, f_audio_alloc_inst, f_audio_alloc);
+MODULE_DESCRIPTION("USB Audio Class 1.0 Function (using u_audio API)");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Ruslan Bilovol");

drivers/usb/gadget/function/f_uac1_legacy.c

···
 }
 
 DECLARE_USB_FUNCTION_INIT(uac1_legacy, f_audio_alloc_inst, f_audio_alloc);
+MODULE_DESCRIPTION("USB Audio class function driver");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Bryan Wu");

drivers/usb/gadget/function/f_uac2.c

···
 }
 
 DECLARE_USB_FUNCTION_INIT(uac2, afunc_alloc_inst, afunc_alloc);
+MODULE_DESCRIPTION("USB Audio Class 2.0 Function");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Yadwinder Singh");
 MODULE_AUTHOR("Jaswinder Singh");

drivers/usb/gadget/function/f_uvc.c

···
 }
 
 DECLARE_USB_FUNCTION_INIT(uvc, uvc_alloc_inst, uvc_alloc);
+MODULE_DESCRIPTION("USB Video Class Gadget driver");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Laurent Pinchart");

drivers/usb/gadget/function/storage_common.c

···
 }
 EXPORT_SYMBOL_GPL(fsg_store_forced_eject);
 
+MODULE_DESCRIPTION("Common definitions for mass storage functionality");
 MODULE_LICENSE("GPL");

drivers/usb/gadget/function/u_ether.c

···
 }
 EXPORT_SYMBOL_GPL(gether_disconnect);
 
+MODULE_DESCRIPTION("Ethernet-over-USB link layer utilities for Gadget stack");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("David Brownell");

drivers/usb/gadget/function/u_serial.c

···
 }
 module_exit(userial_cleanup);
 
+MODULE_DESCRIPTION("utilities for USB gadget \"serial port\"/TTY support");
 MODULE_LICENSE("GPL");

drivers/usb/gadget/legacy/dbgp.c

···
 }
 
 MODULE_AUTHOR("Stephane Duverger");
+MODULE_DESCRIPTION("EHCI Debug Port device gadget");
 MODULE_LICENSE("GPL");
 module_init(dbgp_init);
 module_exit(dbgp_exit);

drivers/usb/gadget/legacy/gmidi.c

···
 /*-------------------------------------------------------------------------*/
 
 MODULE_AUTHOR("Ben Williamson");
+MODULE_DESCRIPTION("USB MIDI Gadget Driver");
 MODULE_LICENSE("GPL v2");
 
 static const char longname[] = "MIDI Gadget";

drivers/usb/gadget/legacy/zero.c

···
 module_usb_composite_driver(zero_driver);
 
 MODULE_AUTHOR("David Brownell");
+MODULE_DESCRIPTION("Gadget Zero, for USB development");
 MODULE_LICENSE("GPL");