tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.19.y head: 3a10b2060ca30843d9251b80a2e1ca71e68035bd commit: f66a52d991de7ca6c6dc7db768b50e6a28916d1f [4058/6859] kbuild: clang: choose GCC_TOOLCHAIN_DIR not on LD config: powerpc64-randconfig-r012-20210218 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project c9439ca36342fb6013187d0a69aef92736951476) 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 # install powerpc64 cross compiling tool for clang build # apt-get install binutils-powerpc64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.gi... git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git git fetch --no-tags linux-stable-rc linux-4.19.y git checkout f66a52d991de7ca6c6dc7db768b50e6a28916d1f # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): include/linux/page-flags.h:162:21: warning: comparison of integers of different signs: 'const unsigned long' and 'long' [-Wsign-compare] return page->flags == PAGE_POISON_PATTERN; ~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~ In file included from sound/soc/amd/acp-rt5645.c:30: In file included from include/sound/soc.h:23: In file included from include/sound/pcm.h:30: In file included from include/linux/mm.h:1154: include/linux/vmstat.h:221:2: warning: comparison of integers of different signs: 'int' and 'unsigned int' [-Wsign-compare] for_each_online_cpu(cpu) ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/cpumask.h:778:36: note: expanded from macro 'for_each_online_cpu' #define for_each_online_cpu(cpu) for_each_cpu((cpu), cpu_online_mask) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/cpumask.h:243:9: note: expanded from macro 'for_each_cpu' (cpu) < nr_cpu_ids;) ~~~ ^ ~~~~~~~~~~ In file included from sound/soc/amd/acp-rt5645.c:30: In file included from include/sound/soc.h:23: include/sound/pcm.h:1412:17: warning: comparison of integers of different signs: 'int' and 'unsigned int' [-Wsign-compare] if (s->number == idx) ~~~~~~~~~ ^ ~~~ include/linux/compiler.h:56:36: note: expanded from macro 'if' #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) ) ^~~~ include/linux/compiler.h:69:16: note: expanded from macro '__trace_if' ______r = !!(cond); \ ^~~~ In file included from sound/soc/amd/acp-rt5645.c:30: In file included from include/sound/soc.h:23: include/sound/pcm.h:1412:17: warning: comparison of integers of different signs: 'int' and 'unsigned int' [-Wsign-compare] if (s->number == idx) ~~~~~~~~~ ^ ~~~ include/linux/compiler.h:56:36: note: expanded from macro 'if' #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) ) ^~~~ include/linux/compiler.h:58:30: note: expanded from macro '__trace_if' if (__builtin_constant_p(!!(cond)) ? !!(cond) : \ ^~~~ In file included from sound/soc/amd/acp-rt5645.c:30: In file included from include/sound/soc.h:23: include/sound/pcm.h:1412:17: warning: comparison of integers of different signs: 'int' and 'unsigned int' [-Wsign-compare] if (s->number == idx) ~~~~~~~~~ ^ ~~~ include/linux/compiler.h:56:36: note: expanded from macro 'if' #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) ) ^~~~ include/linux/compiler.h:58:42: note: expanded from macro '__trace_if' if (__builtin_constant_p(!!(cond)) ? !!(cond) : \ ^~~~ sound/soc/amd/acp-rt5645.c:132:29: warning: missing field 'connected' initializer [-Wmissing-field-initializers] {"Headphones", NULL, "HPOL"}, ^ sound/soc/amd/acp-rt5645.c:133:29: warning: missing field 'connected' initializer [-Wmissing-field-initializers] {"Headphones", NULL, "HPOR"}, ^ sound/soc/amd/acp-rt5645.c:134:33: warning: missing field 'connected' initializer [-Wmissing-field-initializers] {"RECMIXL", NULL, "Headset Mic"}, ^ sound/soc/amd/acp-rt5645.c:135:33: warning: missing field 'connected' initializer [-Wmissing-field-initializers] {"RECMIXR", NULL, "Headset Mic"}, ^ sound/soc/amd/acp-rt5645.c:136:27: warning: missing field 'connected' initializer [-Wmissing-field-initializers] {"Speakers", NULL, "SPOL"}, ^ sound/soc/amd/acp-rt5645.c:137:27: warning: missing field 'connected' initializer [-Wmissing-field-initializers] {"Speakers", NULL, "SPOR"}, ^ sound/soc/amd/acp-rt5645.c:138:29: warning: missing field 'connected' initializer [-Wmissing-field-initializers] {"DMIC L2", NULL, "Int Mic"}, ^ sound/soc/amd/acp-rt5645.c:139:29: warning: missing field 'connected' initializer [-Wmissing-field-initializers] {"DMIC R2", NULL, "Int Mic"}, ^ sound/soc/amd/acp-rt5645.c:143:22: warning: initializing 'const unsigned char *' with an expression of type 'char [18]' converts between pointers to integer types where one is of the unique plain 'char' type and the other is not [-Wpointer-sign] SOC_DAPM_PIN_SWITCH("Headphones"), ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~ include/sound/soc-dapm.h:330:48: note: expanded from macro 'SOC_DAPM_PIN_SWITCH' { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname " Switch", \ ^~~~~~~~~~~~~~~ sound/soc/amd/acp-rt5645.c:144:22: warning: initializing 'const unsigned char *' with an expression of type 'char [16]' converts between pointers to integer types where one is of the unique plain 'char' type and the other is not [-Wpointer-sign] SOC_DAPM_PIN_SWITCH("Speakers"), ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~ include/sound/soc-dapm.h:330:48: note: expanded from macro 'SOC_DAPM_PIN_SWITCH' { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname " Switch", \ ^~~~~~~~~~~~~~~ sound/soc/amd/acp-rt5645.c:145:22: warning: initializing 'const unsigned char *' with an expression of type 'char [19]' converts between pointers to integer types where one is of the unique plain 'char' type and the other is not [-Wpointer-sign] SOC_DAPM_PIN_SWITCH("Headset Mic"), ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~ include/sound/soc-dapm.h:330:48: note: expanded from macro 'SOC_DAPM_PIN_SWITCH' { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname " Switch", \ ^~~~~~~~~~~~~~~ sound/soc/amd/acp-rt5645.c:146:22: warning: initializing 'const unsigned char *' with an expression of type 'char [15]' converts between pointers to integer types where one is of the unique plain 'char' type and the other is not [-Wpointer-sign] SOC_DAPM_PIN_SWITCH("Int Mic"), ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~ include/sound/soc-dapm.h:330:48: note: expanded from macro 'SOC_DAPM_PIN_SWITCH' { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname " Switch", \ ^~~~~~~~~~~~~~~ sound/soc/amd/acp-rt5645.c:181:18: warning: missing field 'cls' initializer [-Wmissing-field-initializers] { "AMDI1002", 0 }, ^ static const struct acpi_device_id cz_audio_acpi_match[] = { ^ 34 warnings generated. Assembler messages: Fatal error: invalid listing option `6' clang-12: error: assembler command failed with exit code 1 (use -v to see invocation) vim +/cz_audio_acpi_match +180 sound/soc/amd/acp-rt5645.c 566a1847fb37f1 Akshu Agrawal 2017-10-18 179 566a1847fb37f1 Akshu Agrawal 2017-10-18 @180 static const struct acpi_device_id cz_audio_acpi_match[] = { 566a1847fb37f1 Akshu Agrawal 2017-10-18 181 { "AMDI1002", 0 }, 566a1847fb37f1 Akshu Agrawal 2017-10-18 182 {}, 566a1847fb37f1 Akshu Agrawal 2017-10-18 183 }; 566a1847fb37f1 Akshu Agrawal 2017-10-18 184 MODULE_DEVICE_TABLE(acpi, cz_audio_acpi_match); 566a1847fb37f1 Akshu Agrawal 2017-10-18 185 :::::: The code at line 180 was first introduced by commit :::::: 566a1847fb37f1b12d997f85623cbf8658c87394 ASoC: AMD: Add machine driver for cz rt5650 :::::: TO: Akshu Agrawal <akshu.agrawal(a)amd.com&gt; :::::: CC: Mark Brown <broonie(a)kernel.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org