Hi Takashi,

FYI, kernel build failed on

tree:   git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-unstable.git master
head:   d2dfd82739080fefb704c0d8e4c9b2b2093a601c
commit: 5cb543dba9867588786f87af2e64fca371b69283 [94/97] ALSA: hda - Deferred probing with request_firmware_nowait()
config: i386-defconfig (attached as .config)

All related error/warning messages:

sound/pci/hda/hda_intel.c: In function 'azx_firmware_cb':
sound/pci/hda/hda_intel.c:3174:6: error: 'struct azx' has no member named 'fw'
sound/pci/hda/hda_intel.c: At top level:
sound/pci/hda/hda_intel.c:3163:13: warning: 'azx_firmware_cb' defined but not used [-Wunused-function]

vim +3174 sound/pci/hda/hda_intel.c
  3171			goto error;
  3172		}
  3173	
> 3174		chip->fw = fw;
  3175		if (!chip->disabled) {
  3176			/* continue probing */
  3177			if (azx_probe_continue(chip))

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0-DAY kernel build testing backend         Open Source Technology Centre
Fengguang Wu <wfg@linux.intel.com>                     Intel Corporation