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 <quic_jjohnson@quicinc.com>
Link: https://lore.kernel.org/r/20240605-md-drivers-usb-gadget-v1-1-29847a46aad3@quicinc.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/gadget/composite.c

@@ -2799,5 +2799,6 @@ void usb_composite_overwrite_options(struct usb_composite_dev *cdev,
 }
 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

@@ -854,4 +854,5 @@ static struct usb_function_instance *acm_alloc_instance(void)
 	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

@@ -966,5 +966,6 @@ static struct usb_function *ecm_alloc(struct usb_function_instance *fi)
 }
 
 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

@@ -674,5 +674,6 @@ static struct usb_function *eem_alloc(struct usb_function_instance *fi)
 }
 
 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

@@ -4316,5 +4316,6 @@ static char *ffs_prepare_buffer(const char __user *buf, size_t len)
 }
 
 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

@@ -1322,6 +1322,7 @@ static struct usb_function *hidg_alloc(struct usb_function_instance *fi)
 }
 
 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

@@ -593,4 +593,5 @@ void __exit lb_modexit(void)
 	usb_function_unregister(&Loopbackusb_func);
 }
 
+MODULE_DESCRIPTION("USB peripheral loopback configuration driver");
 MODULE_LICENSE("GPL");

drivers/usb/gadget/function/f_mass_storage.c

@@ -3577,6 +3577,7 @@ static struct usb_function *fsg_alloc(struct usb_function_instance *fi)
 }
 
 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

@@ -38,6 +38,7 @@
 #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

@@ -2868,4 +2868,5 @@ static struct usb_function *f_midi2_alloc(struct usb_function_instance *fi)
 
 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

@@ -1797,5 +1797,6 @@ static struct usb_function *ncm_alloc(struct usb_function_instance *fi)
 }
 
 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

@@ -487,4 +487,5 @@ static struct usb_function *obex_alloc(struct usb_function_instance *fi)
 
 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

@@ -729,4 +729,5 @@ void gphonet_cleanup(struct net_device *dev)
 
 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

@@ -1507,6 +1507,7 @@ static struct usb_function *gprinter_alloc(struct usb_function_instance *fi)
 }
 
 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

@@ -1013,5 +1013,6 @@ static struct usb_function *rndis_alloc(struct usb_function_instance *fi)
 }
 
 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

@@ -392,6 +392,7 @@ static struct usb_function *gser_alloc(struct usb_function_instance *fi)
 }
 
 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

@@ -1284,4 +1284,5 @@ static void __exit sslb_modexit(void)
 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

@@ -500,5 +500,6 @@ static struct usb_function *geth_alloc(struct usb_function_instance *fi)
 }
 
 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

@@ -2301,5 +2301,6 @@ static void __exit tcm_exit(void)
 }
 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

@@ -1823,5 +1823,6 @@ static struct usb_function *f_audio_alloc(struct usb_function_instance *fi)
 }
 
 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

@@ -1014,5 +1014,6 @@ static struct usb_function *f_audio_alloc(struct usb_function_instance *fi)
 }
 
 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

@@ -2251,6 +2251,7 @@ static struct usb_function *afunc_alloc(struct usb_function_instance *fi)
 }
 
 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

@@ -1118,5 +1118,6 @@ static struct usb_function *uvc_alloc(struct usb_function_instance *fi)
 }
 
 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

@@ -537,4 +537,5 @@ ssize_t fsg_store_forced_eject(struct fsg_lun *curlun, struct rw_semaphore *file
 }
 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

@@ -1247,5 +1247,6 @@ void gether_disconnect(struct gether *link)
 }
 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

@@ -1536,4 +1536,5 @@ static void __exit userial_cleanup(void)
 }
 module_exit(userial_cleanup);
 
+MODULE_DESCRIPTION("utilities for USB gadget \"serial port\"/TTY support");
 MODULE_LICENSE("GPL");

drivers/usb/gadget/legacy/dbgp.c

@@ -434,6 +434,7 @@ static void __exit dbgp_exit(void)
 }
 
 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

@@ -31,6 +31,7 @@
 /*-------------------------------------------------------------------------*/
 
 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

@@ -425,4 +425,5 @@ static struct usb_composite_driver zero_driver = {
 module_usb_composite_driver(zero_driver);
 
 MODULE_AUTHOR("David Brownell");
+MODULE_DESCRIPTION("Gadget Zero, for USB development");
 MODULE_LICENSE("GPL");