[sound:topic/asus-e100h-4.10 5/26] arch/x86/include/asm/iosf_mbi.h:137:55: warning: 'struct notifier_block' declared inside parameter list will not be visible outside of this definition or declaration

[kbuild test robot <fengguang.wu@intel.com>]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git topic/asus-e100h-4.10
head:   c86c0067e6111324a39f523c250c8b1089b1d822
commit: d97e0b9238852206e9dce1de994ff8d2791f6429 [5/26] x86/platform/intel/iosf_mbi: Add a PMIC bus access notifier
config: i386-allmodconfig (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        git checkout d97e0b9238852206e9dce1de994ff8d2791f6429
        # save the attached .config to linux build tree
        make ARCH=i386 

All warnings (new ones prefixed by >>):

   In file included from arch/x86/platform/intel-quark/imr.c:30:0:
>> arch/x86/include/asm/iosf_mbi.h:137:55: warning: 'struct notifier_block' declared inside parameter list will not be visible outside of this definition or declaration
    int iosf_mbi_register_pmic_bus_access_notifier(struct notifier_block *nb);
                                                          ^~~~~~~~~~~~~~
   arch/x86/include/asm/iosf_mbi.h:144:57: warning: 'struct notifier_block' declared inside parameter list will not be visible outside of this definition or declaration
    int iosf_mbi_unregister_pmic_bus_access_notifier(struct notifier_block *nb);
                                                            ^~~~~~~~~~~~~~

vim +137 arch/x86/include/asm/iosf_mbi.h

   121	
   122	/**
   123	 * iosf_mbi_register_pmic_bus_access_notifier - Register PMIC bus notifier
   124	 *
   125	 * This function can be used by drivers which may need to acquire P-Unit
   126	 * managed resources from interrupt context, where iosf_mbi_punit_acquire()
   127	 * can not be used.
   128	 *
   129	 * This function allows a driver to register a notifier to get notified (in a
   130	 * process context) before other drivers start accessing the PMIC bus.
   131	 *
   132	 * This allows the driver to acquire any resources, which it may need during
   133	 * the window the other driver is accessing the PMIC, before hand.
   134	 *
   135	 * @nb: notifier_block to register
   136	 */
 > 137	int iosf_mbi_register_pmic_bus_access_notifier(struct notifier_block *nb);
   138	
   139	/**
   140	 * iosf_mbi_register_pmic_bus_access_notifier - Unregister PMIC bus notifier
   141	 *
   142	 * @nb: notifier_block to unregister
   143	 */
   144	int iosf_mbi_unregister_pmic_bus_access_notifier(struct notifier_block *nb);
   145	

---
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