linux-kernel - [ammarfaizi2-block:google/android/kernel/common/android13-5.15 1113/2496] kernel/module.c:4789:6: warning: no previous prototype for function 'android_debug_for_each

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Date:   Thu, 6 Jan 2022 17:29:28 +0800
From:   kernel test robot <lkp@...el.com>
To:     Prasad Sodagudi <psodagud@...eaurora.org>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org, Yogesh Lal <quic_ylal@...cinc.com>,
        Elliot Berman <eberman@...eaurora.org>
Subject: [ammarfaizi2-block:google/android/kernel/common/android13-5.15
 1113/2496] kernel/module.c:4789:6: warning: no previous prototype for
 function 'android_debug_for_each_module'

tree:   https://github.com/ammarfaizi2/linux-block google/android/kernel/common/android13-5.15
head:   f8bd6cf70dec3961c8b15b987866af33be2ce82b
commit: b2df67a932b5cbd6535de9f1a6e63004992ad014 [1113/2496] ANDROID: android: Create debug_symbols driver
config: i386-randconfig-a006-20220106 (https://download.01.org/0day-ci/archive/20220106/202201061725.15rSGzxq-lkp@intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project ca7ffe09dc6e525109e3cd570cc5182ce568be13)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/ammarfaizi2/linux-block/commit/b2df67a932b5cbd6535de9f1a6e63004992ad014
        git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
        git fetch --no-tags ammarfaizi2-block google/android/kernel/common/android13-5.15
        git checkout b2df67a932b5cbd6535de9f1a6e63004992ad014
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

>> kernel/module.c:4789:6: warning: no previous prototype for function 'android_debug_for_each_module' [-Wmissing-prototypes]
   void android_debug_for_each_module(int (*fn)(const char *mod_name, void *mod_addr, void *data),
        ^
   kernel/module.c:4789:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void android_debug_for_each_module(int (*fn)(const char *mod_name, void *mod_addr, void *data),
   ^
   static 
   1 warning generated.

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for DRM_MIPI_DSI
   Depends on HAS_IOMEM && DRM
   Selected by
   - GKI_HIDDEN_DRM_CONFIGS
   WARNING: unmet direct dependencies detected for SND_JACK
   Depends on SOUND && !UML && SND
   Selected by
   - GKI_HIDDEN_SND_CONFIGS
   WARNING: unmet direct dependencies detected for DRM_KMS_CMA_HELPER
   Depends on HAS_IOMEM && DRM
   Selected by
   - GKI_HIDDEN_DRM_CONFIGS
   WARNING: unmet direct dependencies detected for SND_VMASTER
   Depends on SOUND && !UML && SND
   Selected by
   - GKI_HIDDEN_SND_CONFIGS
   WARNING: unmet direct dependencies detected for SND_PCM_IEC958
   Depends on SOUND && !UML && SND
   Selected by
   - GKI_HIDDEN_SND_SOC_CONFIGS
   WARNING: unmet direct dependencies detected for SND_JACK_INPUT_DEV
   Depends on SOUND && !UML && SND && SND_JACK
   Selected by
   - GKI_HIDDEN_SND_CONFIGS
   WARNING: unmet direct dependencies detected for SND_PCM_ELD
   Depends on SOUND && !UML && SND
   Selected by
   - GKI_HIDDEN_SND_CONFIGS
   WARNING: unmet direct dependencies detected for DRM_GEM_CMA_HELPER
   Depends on HAS_IOMEM && DRM
   Selected by
   - GKI_HIDDEN_DRM_CONFIGS
   WARNING: unmet direct dependencies detected for SND_INTEL_NHLT
   Depends on SOUND && !UML && SND
   Selected by
   - GKI_HIDDEN_SND_CONFIGS && ACPI


vim +/android_debug_for_each_module +4789 kernel/module.c

  4787	
  4788	#ifdef CONFIG_ANDROID_DEBUG_SYMBOLS
> 4789	void android_debug_for_each_module(int (*fn)(const char *mod_name, void *mod_addr, void *data),
  4790		void *data)
  4791	{
  4792		struct module *module;
  4793		preempt_disable();
  4794		list_for_each_entry_rcu(module, &modules, list) {
  4795			if (fn(module->name, module->core_layout.base, data))
  4796				goto out;
  4797		}
  4798	out:
  4799		preempt_enable();
  4800	}
  4801	EXPORT_SYMBOL_NS_GPL(android_debug_for_each_module, MINIDUMP);
  4802	#endif
  4803	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org