tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: fb57b1fabcb28f358901b2df90abd2b48abc1ca8 commit: ef03574dee21524cbdbbf2af29fe06a62610570d [10668/10701] mm: introduce include/linux/pgtable.h config: parisc-randconfig-r011-20200521 (attached as .config) compiler: hppa-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout ef03574dee21524cbdbbf2af29fe06a62610570d # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=parisc If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>, old ones prefixed by <<): In file included from include/linux/pgtable.h:6, from include/linux/mm.h:95, from include/linux/pid_namespace.h:7, from include/linux/ptrace.h:10, from arch/parisc/kernel/asm-offsets.c:20: include/linux/pgtable.h: In function 'pte_clear_not_present_full': arch/parisc/include/asm/pgtable.h:96:9: warning: variable 'old_pte' set but not used [-Wunused-but-set-variable] 96 | pte_t old_pte; | ^~~~~~~ arch/parisc/include/asm/pgtable.h:322:34: note: in expansion of macro 'set_pte_at' 322 | #define pte_clear(mm, addr, xp) set_pte_at(mm, addr, xp, __pte(0)) | ^~~~~~~~~~ 203 | pte_clear(mm, address, ptep); | ^~~~~~~~~ include/linux/pgtable.h: In function '__ptep_modify_prot_commit': arch/parisc/include/asm/pgtable.h:96:9: warning: variable 'old_pte' set but not used [-Wunused-but-set-variable] 96 | pte_t old_pte; | ^~~~~~~ 646 | set_pte_at(vma->vm_mm, addr, ptep, pte); | ^~~~~~~~~~ -- In file included from include/linux/pgtable.h:6, from include/linux/mm.h:95, from sound/core/pcm_native.c:8: include/linux/pgtable.h: In function 'pte_clear_not_present_full': arch/parisc/include/asm/pgtable.h:96:9: warning: variable 'old_pte' set but not used [-Wunused-but-set-variable] 96 | pte_t old_pte; | ^~~~~~~ arch/parisc/include/asm/pgtable.h:322:34: note: in expansion of macro 'set_pte_at' 322 | #define pte_clear(mm, addr, xp) set_pte_at(mm, addr, xp, __pte(0)) | ^~~~~~~~~~ 203 | pte_clear(mm, address, ptep); | ^~~~~~~~~ include/linux/pgtable.h: In function '__ptep_modify_prot_commit': arch/parisc/include/asm/pgtable.h:96:9: warning: variable 'old_pte' set but not used [-Wunused-but-set-variable] 96 | pte_t old_pte; | ^~~~~~~ 646 | set_pte_at(vma->vm_mm, addr, ptep, pte); | ^~~~~~~~~~ sound/core/pcm_native.c: In function 'constrain_mask_params': sound/core/pcm_native.c:254:18: warning: variable 'old_mask' set but not used [-Wunused-but-set-variable] 254 | struct snd_mask old_mask; | ^~~~~~~~ sound/core/pcm_native.c: In function 'constrain_interval_params': sound/core/pcm_native.c:290:22: warning: variable 'old_interval' set but not used [-Wunused-but-set-variable] 290 | struct snd_interval old_interval; | ^~~~~~~~~~~~ sound/core/pcm_native.c: In function 'constrain_params_by_rules': sound/core/pcm_native.c:331:22: warning: variable 'old_interval' set but not used [-Wunused-but-set-variable] 331 | struct snd_interval old_interval; | ^~~~~~~~~~~~ sound/core/pcm_native.c:330:18: warning: variable 'old_mask' set but not used [-Wunused-but-set-variable] 330 | struct snd_mask old_mask; | ^~~~~~~~ sound/core/pcm_native.c: In function 'snd_pcm_hw_params_choose': sound/core/pcm_native.c:615:22: warning: variable 'old_interval' set but not used [-Wunused-but-set-variable] 615 | struct snd_interval old_interval; | ^~~~~~~~~~~~ sound/core/pcm_native.c:614:18: warning: variable 'old_mask' set but not used [-Wunused-but-set-variable] 614 | struct snd_mask old_mask; | ^~~~~~~~ -- In file included from include/linux/pgtable.h:6, from arch/parisc/include/asm/io.h:6, from include/linux/io.h:13, from include/linux/irq.h:20, from include/linux/gpio/driver.h:7, from include/linux/of_gpio.h:14, from sound/soc/codecs/ak4118.c:12: include/linux/pgtable.h: In function 'pte_clear_not_present_full': arch/parisc/include/asm/pgtable.h:96:9: warning: variable 'old_pte' set but not used [-Wunused-but-set-variable] 96 | pte_t old_pte; | ^~~~~~~ arch/parisc/include/asm/pgtable.h:322:34: note: in expansion of macro 'set_pte_at' 322 | #define pte_clear(mm, addr, xp) set_pte_at(mm, addr, xp, __pte(0)) | ^~~~~~~~~~ 203 | pte_clear(mm, address, ptep); | ^~~~~~~~~ include/linux/pgtable.h: In function '__ptep_modify_prot_commit': arch/parisc/include/asm/pgtable.h:96:9: warning: variable 'old_pte' set but not used [-Wunused-but-set-variable] 96 | pte_t old_pte; | ^~~~~~~ 646 | set_pte_at(vma->vm_mm, addr, ptep, pte); | ^~~~~~~~~~ At top level: sound/soc/codecs/ak4118.c:407:34: warning: 'ak4118_of_match' defined but not used [-Wunused-const-variable=] 407 | static const struct of_device_id ak4118_of_match[] = { | ^~~~~~~~~~~~~~~ -- In file included from include/linux/pgtable.h:6, from arch/parisc/include/asm/io.h:6, from include/linux/io.h:13, from include/linux/irq.h:20, from include/linux/gpio/driver.h:7, from include/linux/of_gpio.h:14, from sound/soc/codecs/ak4458.c:13: include/linux/pgtable.h: In function 'pte_clear_not_present_full': arch/parisc/include/asm/pgtable.h:96:9: warning: variable 'old_pte' set but not used [-Wunused-but-set-variable] 96 | pte_t old_pte; | ^~~~~~~ arch/parisc/include/asm/pgtable.h:322:34: note: in expansion of macro 'set_pte_at' 322 | #define pte_clear(mm, addr, xp) set_pte_at(mm, addr, xp, __pte(0)) | ^~~~~~~~~~ 203 | pte_clear(mm, address, ptep); | ^~~~~~~~~ include/linux/pgtable.h: In function '__ptep_modify_prot_commit': arch/parisc/include/asm/pgtable.h:96:9: warning: variable 'old_pte' set but not used [-Wunused-but-set-variable] 96 | pte_t old_pte; | ^~~~~~~ 646 | set_pte_at(vma->vm_mm, addr, ptep, pte); | ^~~~~~~~~~ sound/soc/codecs/ak4458.c: In function 'ak4458_set_dai_mute': sound/soc/codecs/ak4458.c:408:16: warning: variable 'ret' set but not used [-Wunused-but-set-variable] 408 | int nfs, ndt, ret, reg; | ^~~ -- In file included from include/linux/pgtable.h:6, from arch/parisc/include/asm/io.h:6, from include/linux/io.h:13, from include/linux/iopoll.h:14, from include/linux/regmap.h:20, from sound/soc/codecs/ak5558.c:13: include/linux/pgtable.h: In function 'pte_clear_not_present_full': arch/parisc/include/asm/pgtable.h:96:9: warning: variable 'old_pte' set but not used [-Wunused-but-set-variable] 96 | pte_t old_pte; | ^~~~~~~ arch/parisc/include/asm/pgtable.h:322:34: note: in expansion of macro 'set_pte_at' 322 | #define pte_clear(mm, addr, xp) set_pte_at(mm, addr, xp, __pte(0)) | ^~~~~~~~~~ 203 | pte_clear(mm, address, ptep); | ^~~~~~~~~ include/linux/pgtable.h: In function '__ptep_modify_prot_commit': arch/parisc/include/asm/pgtable.h:96:9: warning: variable 'old_pte' set but not used [-Wunused-but-set-variable] 96 | pte_t old_pte; | ^~~~~~~ 646 | set_pte_at(vma->vm_mm, addr, ptep, pte); | ^~~~~~~~~~ At top level: sound/soc/codecs/ak5558.c:388:34: warning: 'ak5558_i2c_dt_ids' defined but not used [-Wunused-const-variable=] 388 | static const struct of_device_id ak5558_i2c_dt_ids[] = { | ^~~~~~~~~~~~~~~~~ -- In file included from include/linux/pgtable.h:6, from arch/parisc/include/asm/io.h:6, from include/linux/io.h:13, from include/linux/iopoll.h:14, from include/linux/regmap.h:20, from sound/soc/codecs/alc5623.c:19: include/linux/pgtable.h: In function 'pte_clear_not_present_full': arch/parisc/include/asm/pgtable.h:96:9: warning: variable 'old_pte' set but not used [-Wunused-but-set-variable] 96 | pte_t old_pte; | ^~~~~~~ arch/parisc/include/asm/pgtable.h:322:34: note: in expansion of macro 'set_pte_at' 322 | #define pte_clear(mm, addr, xp) set_pte_at(mm, addr, xp, __pte(0)) | ^~~~~~~~~~ 203 | pte_clear(mm, address, ptep); | ^~~~~~~~~ include/linux/pgtable.h: In function '__ptep_modify_prot_commit': arch/parisc/include/asm/pgtable.h:96:9: warning: variable 'old_pte' set but not used [-Wunused-but-set-variable] 96 | pte_t old_pte; | ^~~~~~~ 646 | set_pte_at(vma->vm_mm, addr, ptep, pte); | ^~~~~~~~~~ At top level: sound/soc/codecs/alc5623.c:1070:34: warning: 'alc5623_of_match' defined but not used [-Wunused-const-variable=] 1070 | static const struct of_device_id alc5623_of_match[] = { | ^~~~~~~~~~~~~~~~ -- In file included from include/linux/pgtable.h:6, from arch/parisc/include/asm/io.h:6, from include/linux/io.h:13, from include/linux/irq.h:20, from include/linux/gpio/driver.h:7, from include/asm-generic/gpio.h:11, from include/linux/gpio.h:62, from sound/soc/codecs/cs42l42.c:19: include/linux/pgtable.h: In function 'pte_clear_not_present_full': arch/parisc/include/asm/pgtable.h:96:9: warning: variable 'old_pte' set but not used [-Wunused-but-set-variable] 96 | pte_t old_pte; | ^~~~~~~ arch/parisc/include/asm/pgtable.h:322:34: note: in expansion of macro 'set_pte_at' 322 | #define pte_clear(mm, addr, xp) set_pte_at(mm, addr, xp, __pte(0)) | ^~~~~~~~~~ 203 | pte_clear(mm, address, ptep); | ^~~~~~~~~ include/linux/pgtable.h: In function '__ptep_modify_prot_commit': arch/parisc/include/asm/pgtable.h:96:9: warning: variable 'old_pte' set but not used [-Wunused-but-set-variable] 96 | pte_t old_pte; | ^~~~~~~ 646 | set_pte_at(vma->vm_mm, addr, ptep, pte); | ^~~~~~~~~~ sound/soc/codecs/cs42l42.c: In function 'cs42l42_handle_device_data': sound/soc/codecs/cs42l42.c:1661:12: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits] 1661 | if ((val >= CS42L42_BTN_DET_INIT_DBNCE_MIN) && | ^~ sound/soc/codecs/cs42l42.c:1679:12: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits] 1679 | if ((val >= CS42L42_BTN_DET_EVENT_DBNCE_MIN) && | ^~ sound/soc/codecs/cs42l42.c:1698:23: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits] 1698 | if ((thresholds[i] >= CS42L42_HS_DET_LEVEL_MIN) && | ^~ -- In file included from include/linux/pgtable.h:6, from arch/parisc/include/asm/io.h:6, from include/linux/io.h:13, from include/linux/irq.h:20, from arch/parisc/include/asm/hardirq.h:13, from include/linux/hardirq.h:9, from include/linux/interrupt.h:11, from include/sound/soc.h:18, from sound/soc/codecs/es7134.c:9: include/linux/pgtable.h: In function 'pte_clear_not_present_full': arch/parisc/include/asm/pgtable.h:96:9: warning: variable 'old_pte' set but not used [-Wunused-but-set-variable] 96 | pte_t old_pte; | ^~~~~~~ arch/parisc/include/asm/pgtable.h:322:34: note: in expansion of macro 'set_pte_at' 322 | #define pte_clear(mm, addr, xp) set_pte_at(mm, addr, xp, __pte(0)) | ^~~~~~~~~~ 203 | pte_clear(mm, address, ptep); | ^~~~~~~~~ include/linux/pgtable.h: In function '__ptep_modify_prot_commit': arch/parisc/include/asm/pgtable.h:96:9: warning: variable 'old_pte' set but not used [-Wunused-but-set-variable] 96 | pte_t old_pte; | ^~~~~~~ 646 | set_pte_at(vma->vm_mm, addr, ptep, pte); | ^~~~~~~~~~ At top level: sound/soc/codecs/es7134.c:264:33: warning: 'es7154_chip' defined but not used [-Wunused-const-variable=] 264 | static const struct es7134_chip es7154_chip = { | ^~~~~~~~~~~ sound/soc/codecs/es7134.c:186:33: warning: 'es7134_chip' defined but not used [-Wunused-const-variable=] 186 | static const struct es7134_chip es7134_chip = { | ^~~~~~~~~~~ -- In file included from include/linux/pgtable.h:6, from arch/parisc/include/asm/io.h:6, from include/linux/io.h:13, from include/linux/iopoll.h:14, from include/linux/regmap.h:20, from sound/soc/codecs/es8316.c:17: include/linux/pgtable.h: In function 'pte_clear_not_present_full': arch/parisc/include/asm/pgtable.h:96:9: warning: variable 'old_pte' set but not used [-Wunused-but-set-variable] 96 | pte_t old_pte; | ^~~~~~~ arch/parisc/include/asm/pgtable.h:322:34: note: in expansion of macro 'set_pte_at' 322 | #define pte_clear(mm, addr, xp) set_pte_at(mm, addr, xp, __pte(0)) | ^~~~~~~~~~ 203 | pte_clear(mm, address, ptep); | ^~~~~~~~~ include/linux/pgtable.h: In function '__ptep_modify_prot_commit': arch/parisc/include/asm/pgtable.h:96:9: warning: variable 'old_pte' set but not used [-Wunused-but-set-variable] 96 | pte_t old_pte; | ^~~~~~~ 646 | set_pte_at(vma->vm_mm, addr, ptep, pte); | ^~~~~~~~~~ At top level: sound/soc/codecs/es8316.c:842:36: warning: 'es8316_acpi_match' defined but not used [-Wunused-const-variable=] 842 | static const struct acpi_device_id es8316_acpi_match[] = { | ^~~~~~~~~~~~~~~~~ sound/soc/codecs/es8316.c:836:34: warning: 'es8316_of_match' defined but not used [-Wunused-const-variable=] 836 | static const struct of_device_id es8316_of_match[] = { | ^~~~~~~~~~~~~~~ -- In file included from include/linux/pgtable.h:6, from arch/parisc/include/asm/io.h:6, from include/linux/io.h:13, from include/linux/iopoll.h:14, from include/linux/regmap.h:20, from sound/soc/codecs/pcm1789-i2c.c:11: include/linux/pgtable.h: In function 'pte_clear_not_present_full': arch/parisc/include/asm/pgtable.h:96:9: warning: variable 'old_pte' set but not used [-Wunused-but-set-variable] 96 | pte_t old_pte; | ^~~~~~~ arch/parisc/include/asm/pgtable.h:322:34: note: in expansion of macro 'set_pte_at' 322 | #define pte_clear(mm, addr, xp) set_pte_at(mm, addr, xp, __pte(0)) | ^~~~~~~~~~ 203 | pte_clear(mm, address, ptep); | ^~~~~~~~~ include/linux/pgtable.h: In function '__ptep_modify_prot_commit': arch/parisc/include/asm/pgtable.h:96:9: warning: variable 'old_pte' set but not used [-Wunused-but-set-variable] 96 | pte_t old_pte; | ^~~~~~~ 646 | set_pte_at(vma->vm_mm, addr, ptep, pte); | ^~~~~~~~~~ At top level: sound/soc/codecs/pcm1789-i2c.c:36:34: warning: 'pcm1789_of_match' defined but not used [-Wunused-const-variable=] 36 | static const struct of_device_id pcm1789_of_match[] = { | ^~~~~~~~~~~~~~~~ .. vim +/pte_clear +203 include/linux/pgtable.h a600388d284193 include/asm-generic/pgtable.h Zachary Amsden 2005-09-03 191 9888a1cae3f859 include/asm-generic/pgtable.h Zachary Amsden 2006-09-30 192 /* 9888a1cae3f859 include/asm-generic/pgtable.h Zachary Amsden 2006-09-30 193 * Some architectures may be able to avoid expensive synchronization 9888a1cae3f859 include/asm-generic/pgtable.h Zachary Amsden 2006-09-30 194 * primitives when modifications are made to PTE's which are already 9888a1cae3f859 include/asm-generic/pgtable.h Zachary Amsden 2006-09-30 195 * not present, or in the process of an address space destruction. 9888a1cae3f859 include/asm-generic/pgtable.h Zachary Amsden 2006-09-30 196 */ 9888a1cae3f859 include/asm-generic/pgtable.h Zachary Amsden 2006-09-30 197 #ifndef __HAVE_ARCH_PTE_CLEAR_NOT_PRESENT_FULL e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 198 static inline void pte_clear_not_present_full(struct mm_struct *mm, e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 199 unsigned long address, e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 200 pte_t *ptep, e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 201 int full) e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 202 { e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 @203 pte_clear(mm, address, ptep); e2cda322648122 include/asm-generic/pgtable.h Andrea Arcangeli 2011-01-13 204 } a600388d284193 include/asm-generic/pgtable.h Zachary Amsden 2005-09-03 205 #endif a600388d284193 include/asm-generic/pgtable.h Zachary Amsden 2005-09-03 206 :::::: The code at line 203 was first introduced by commit :::::: e2cda322648122dc400c85ada80eaddbc612ef6a thp: add pmd mangling generic functions :::::: TO: Andrea Arcangeli <aarcange(a)redhat.com&gt; :::::: CC: Linus Torvalds <torvalds(a)linux-foundation.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org