~/dev/linux (sound/for-next) $ make
  CHK     include/config/kernel.release
  CHK     include/generated/uapi/linux/version.h
  CHK     include/generated/utsrelease.h
  CHK     include/generated/bounds.h
  CHK     include/generated/timeconst.h
  CHK     include/generated/asm-offsets.h
  CALL    scripts/checksyscalls.sh
  CHK     include/generated/compile.h
  CC [M]  sound/usb/card.o
sound/usb/card.c: In function ‘snd_usb_autoresume’:
sound/usb/card.c:670:1: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
 void snd_usb_autosuspend(struct snd_usb_audio *chip)
 ^
sound/usb/card.c:676:12: error: invalid storage class for function ‘usb_audio_suspend’
 static int usb_audio_suspend(struct usb_interface *intf, pm_message_t message)
            ^
sound/usb/card.c:705:12: error: invalid storage class for function ‘__usb_audio_resume’
 static int __usb_audio_resume(struct usb_interface *intf, bool reset_resume)
            ^
sound/usb/card.c:735:12: error: invalid storage class for function ‘usb_audio_resume’
 static int usb_audio_resume(struct usb_interface *intf)
            ^
sound/usb/card.c:740:12: error: invalid storage class for function ‘usb_audio_reset_resume’
 static int usb_audio_reset_resume(struct usb_interface *intf)
            ^
In file included from sound/usb/card.c:751:0:
sound/usb/quirks-table.h:45:17: error: initializer element is not constant
  .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
                 ^
sound/usb/quirks-table.h:45:17: note: (near initialization for ‘usb_audio_ids[0].driver_info’)
sound/usb/card.c:757:1: warning: ‘alias’ attribute ignored [-Wattributes]
 MODULE_DEVICE_TABLE(usb, usb_audio_ids);
 ^
sound/usb/card.c:767:13: error: initializer element is not constant
  .suspend = usb_audio_suspend,
             ^
sound/usb/card.c:767:13: note: (near initialization for ‘usb_audio_driver.suspend’)
sound/usb/card.c:768:12: error: initializer element is not constant
  .resume = usb_audio_resume,
            ^
sound/usb/card.c:768:12: note: (near initialization for ‘usb_audio_driver.resume’)
sound/usb/card.c:769:18: error: initializer element is not constant
  .reset_resume = usb_audio_reset_resume,
                  ^
sound/usb/card.c:769:18: note: (near initialization for ‘usb_audio_driver.reset_resume’)
In file included from include/linux/usb.h:18:0,
                 from sound/usb/card.c:42:
sound/usb/card.c:774:19: error: invalid storage class for function ‘usb_audio_driver_init’
 module_usb_driver(usb_audio_driver);
                   ^
include/linux/device.h:1291:19: note: in definition of macro ‘module_driver’
 static int __init __driver##_init(void) \
                   ^
sound/usb/card.c:774:1: note: in expansion of macro ‘module_usb_driver’
 module_usb_driver(usb_audio_driver);
 ^
In file included from sound/usb/card.c:47:0:
include/linux/module.h:128:27: error: invalid storage class for function ‘__inittest’
  static inline initcall_t __inittest(void)  \
                           ^
include/linux/device.h:1295:1: note: in expansion of macro ‘module_init’
 module_init(__driver##_init); \
 ^
include/linux/usb.h:1187:2: note: in expansion of macro ‘module_driver’
  module_driver(__usb_driver, usb_register, \
  ^
sound/usb/card.c:774:1: note: in expansion of macro ‘module_usb_driver’
 module_usb_driver(usb_audio_driver);
 ^
sound/usb/card.c:774:1: warning: ‘alias’ attribute ignored [-Wattributes]
In file included from include/linux/usb.h:18:0,
                 from sound/usb/card.c:42:
sound/usb/card.c:774:19: error: invalid storage class for function ‘usb_audio_driver_exit’
 module_usb_driver(usb_audio_driver);
                   ^
include/linux/device.h:1296:20: note: in definition of macro ‘module_driver’
 static void __exit __driver##_exit(void) \
                    ^
sound/usb/card.c:774:1: note: in expansion of macro ‘module_usb_driver’
 module_usb_driver(usb_audio_driver);
 ^
include/linux/device.h:1296:1: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
 static void __exit __driver##_exit(void) \
 ^
include/linux/usb.h:1187:2: note: in expansion of macro ‘module_driver’
  module_driver(__usb_driver, usb_register, \
  ^
sound/usb/card.c:774:1: note: in expansion of macro ‘module_usb_driver’
 module_usb_driver(usb_audio_driver);
 ^
In file included from sound/usb/card.c:47:0:
include/linux/module.h:134:27: error: invalid storage class for function ‘__exittest’
  static inline exitcall_t __exittest(void)  \
                           ^
include/linux/device.h:1300:1: note: in expansion of macro ‘module_exit’
 module_exit(__driver##_exit);
 ^
include/linux/usb.h:1187:2: note: in expansion of macro ‘module_driver’
  module_driver(__usb_driver, usb_register, \
  ^
sound/usb/card.c:774:1: note: in expansion of macro ‘module_usb_driver’
 module_usb_driver(usb_audio_driver);
 ^
sound/usb/card.c:774:1: warning: ‘alias’ attribute ignored [-Wattributes]
sound/usb/card.c:774:1: error: expected declaration or statement at end of input
sound/usb/card.c:774:1: warning: control reaches end of non-void function [-Wreturn-type]
 module_usb_driver(usb_audio_driver);
 ^
scripts/Makefile.build:258: recipe for target 'sound/usb/card.o' failed
make[2]: *** [sound/usb/card.o] Error 1
scripts/Makefile.build:403: recipe for target 'sound/usb' failed
make[1]: *** [sound/usb] Error 2
Makefile:944: recipe for target 'sound' failed
make: *** [sound] Error 2