[kbuild-all] Re: [PATCH RFC 22/30] hugetlb/userfaultfd: Forbid huge pmd sharing when uffd enabled

Hi Peter, [FYI, it's a private test report for your RFC patch.] [auto build test ERROR on asm-generic/master] [cannot apply to arm64/for-next/core linus/master hnaz-linux-mm/master v5.11-rc3 next-20210115] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Peter-Xu/userfaultfd-wp-Support-... base: https://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic.git master config: x86_64-randconfig-c002-20210115 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce (this is a W=1 build): # https://github.com/0day-ci/linux/commit/af7cc4ba61a97d6800691a27144a8d535... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Peter-Xu/userfaultfd-wp-Support-shmem-and-hugetlbfs/20210116-011305 git checkout af7cc4ba61a97d6800691a27144a8d53526186f5 # save the attached .config to linux build tree make W=1 ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): In file included from include/linux/migrate.h:8, from include/linux/hmm.h:16, from drivers/gpu/drm/amd/amdgpu/amdgpu_mn.h:28, from drivers/gpu/drm/amd/amdgpu/amdgpu.h:87, from drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c:40: include/linux/hugetlb.h: In function 'want_pmd_share': 958 | if (uffd_disable_huge_pmd_share(vma)) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_types.h:33, from drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services_types.h:30, from drivers/gpu/drm/amd/amdgpu/../include/dm_pp_interface.h:26, from drivers/gpu/drm/amd/amdgpu/amdgpu.h:67, from drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c:40: At top level: drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:76:32: warning: 'dc_fixpt_ln2_div_2' defined but not used [-Wunused-const-variable=] 76 | static const struct fixed31_32 dc_fixpt_ln2_div_2 = { 1488522236LL }; | ^~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:75:32: warning: 'dc_fixpt_ln2' defined but not used [-Wunused-const-variable=] 75 | static const struct fixed31_32 dc_fixpt_ln2 = { 2977044471LL }; | ^~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:74:32: warning: 'dc_fixpt_e' defined but not used [-Wunused-const-variable=] 74 | static const struct fixed31_32 dc_fixpt_e = { 11674931555LL }; | ^~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:73:32: warning: 'dc_fixpt_two_pi' defined but not used [-Wunused-const-variable=] 73 | static const struct fixed31_32 dc_fixpt_two_pi = { 26986075409LL }; | ^~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:72:32: warning: 'dc_fixpt_pi' defined but not used [-Wunused-const-variable=] 72 | static const struct fixed31_32 dc_fixpt_pi = { 13493037705LL }; | ^~~~~~~~~~~ cc1: some warnings being treated as errors -- In file included from include/linux/migrate.h:8, from include/linux/hmm.h:16, from drivers/gpu/drm/amd/amdgpu/amdgpu_mn.h:28, from drivers/gpu/drm/amd/amdgpu/amdgpu.h:87, from drivers/gpu/drm/amd/amdgpu/amdgpu_object.c:38: include/linux/hugetlb.h: In function 'want_pmd_share': 958 | if (uffd_disable_huge_pmd_share(vma)) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/amdgpu_object.c: In function 'amdgpu_bo_support_uswc': drivers/gpu/drm/amd/amdgpu/amdgpu_object.c:503:2: warning: #warning Please enable CONFIG_MTRR and CONFIG_X86_PAT for better performance thanks to write-combining [-Wcpp] 503 | #warning Please enable CONFIG_MTRR and CONFIG_X86_PAT for better performance \ | ^~~~~~~ In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_types.h:33, from drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services_types.h:30, from drivers/gpu/drm/amd/amdgpu/../include/dm_pp_interface.h:26, from drivers/gpu/drm/amd/amdgpu/amdgpu.h:67, from drivers/gpu/drm/amd/amdgpu/amdgpu_object.c:38: At top level: drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:76:32: warning: 'dc_fixpt_ln2_div_2' defined but not used [-Wunused-const-variable=] 76 | static const struct fixed31_32 dc_fixpt_ln2_div_2 = { 1488522236LL }; | ^~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:75:32: warning: 'dc_fixpt_ln2' defined but not used [-Wunused-const-variable=] 75 | static const struct fixed31_32 dc_fixpt_ln2 = { 2977044471LL }; | ^~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:74:32: warning: 'dc_fixpt_e' defined but not used [-Wunused-const-variable=] 74 | static const struct fixed31_32 dc_fixpt_e = { 11674931555LL }; | ^~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:73:32: warning: 'dc_fixpt_two_pi' defined but not used [-Wunused-const-variable=] 73 | static const struct fixed31_32 dc_fixpt_two_pi = { 26986075409LL }; | ^~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:72:32: warning: 'dc_fixpt_pi' defined but not used [-Wunused-const-variable=] 72 | static const struct fixed31_32 dc_fixpt_pi = { 13493037705LL }; | ^~~~~~~~~~~ cc1: some warnings being treated as errors -- In file included from include/linux/migrate.h:8, from include/linux/hmm.h:16, from drivers/gpu/drm/amd/amdgpu/amdgpu_mn.h:28, from drivers/gpu/drm/amd/amdgpu/amdgpu.h:87, from drivers/gpu/drm/amd/amdgpu/atombios_encoders.c:31: include/linux/hugetlb.h: In function 'want_pmd_share': 958 | if (uffd_disable_huge_pmd_share(vma)) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/atombios_encoders.c: In function 'amdgpu_atombios_encoder_init_backlight': drivers/gpu/drm/amd/amdgpu/atombios_encoders.c:174:5: warning: variable 'backlight_level' set but not used [-Wunused-but-set-variable] 174 | u8 backlight_level; | ^~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_types.h:33, from drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services_types.h:30, from drivers/gpu/drm/amd/amdgpu/../include/dm_pp_interface.h:26, from drivers/gpu/drm/amd/amdgpu/amdgpu.h:67, from drivers/gpu/drm/amd/amdgpu/atombios_encoders.c:31: At top level: drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:76:32: warning: 'dc_fixpt_ln2_div_2' defined but not used [-Wunused-const-variable=] 76 | static const struct fixed31_32 dc_fixpt_ln2_div_2 = { 1488522236LL }; | ^~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:75:32: warning: 'dc_fixpt_ln2' defined but not used [-Wunused-const-variable=] 75 | static const struct fixed31_32 dc_fixpt_ln2 = { 2977044471LL }; | ^~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:74:32: warning: 'dc_fixpt_e' defined but not used [-Wunused-const-variable=] 74 | static const struct fixed31_32 dc_fixpt_e = { 11674931555LL }; | ^~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:73:32: warning: 'dc_fixpt_two_pi' defined but not used [-Wunused-const-variable=] 73 | static const struct fixed31_32 dc_fixpt_two_pi = { 26986075409LL }; | ^~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:72:32: warning: 'dc_fixpt_pi' defined but not used [-Wunused-const-variable=] 72 | static const struct fixed31_32 dc_fixpt_pi = { 13493037705LL }; | ^~~~~~~~~~~ cc1: some warnings being treated as errors -- In file included from include/linux/migrate.h:8, from include/linux/hmm.h:16, from drivers/gpu/drm/amd/amdgpu/amdgpu_mn.h:28, from drivers/gpu/drm/amd/amdgpu/amdgpu.h:87, from drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c:28: include/linux/hugetlb.h: In function 'want_pmd_share': 958 | if (uffd_disable_huge_pmd_share(vma)) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c: At top level: drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c:558:6: warning: no previous prototype for 'amdgpu_virt_update_vf2pf_work_item' [-Wmissing-prototypes] 558 | void amdgpu_virt_update_vf2pf_work_item(struct work_struct *work) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_types.h:33, from drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services_types.h:30, from drivers/gpu/drm/amd/amdgpu/../include/dm_pp_interface.h:26, from drivers/gpu/drm/amd/amdgpu/amdgpu.h:67, from drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c:28: drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:76:32: warning: 'dc_fixpt_ln2_div_2' defined but not used [-Wunused-const-variable=] 76 | static const struct fixed31_32 dc_fixpt_ln2_div_2 = { 1488522236LL }; | ^~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:75:32: warning: 'dc_fixpt_ln2' defined but not used [-Wunused-const-variable=] 75 | static const struct fixed31_32 dc_fixpt_ln2 = { 2977044471LL }; | ^~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:74:32: warning: 'dc_fixpt_e' defined but not used [-Wunused-const-variable=] 74 | static const struct fixed31_32 dc_fixpt_e = { 11674931555LL }; | ^~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:73:32: warning: 'dc_fixpt_two_pi' defined but not used [-Wunused-const-variable=] 73 | static const struct fixed31_32 dc_fixpt_two_pi = { 26986075409LL }; | ^~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:72:32: warning: 'dc_fixpt_pi' defined but not used [-Wunused-const-variable=] 72 | static const struct fixed31_32 dc_fixpt_pi = { 13493037705LL }; | ^~~~~~~~~~~ cc1: some warnings being treated as errors -- In file included from include/linux/migrate.h:8, from include/linux/hmm.h:16, from drivers/gpu/drm/amd/amdgpu/amdgpu_mn.h:28, from drivers/gpu/drm/amd/amdgpu/amdgpu.h:87, from drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c:31: include/linux/hugetlb.h: In function 'want_pmd_share': 958 | if (uffd_disable_huge_pmd_share(vma)) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c: At top level: drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c:35:5: warning: no previous prototype for 'amdgpu_to_sched_priority' [-Wmissing-prototypes] 35 | int amdgpu_to_sched_priority(int amdgpu_priority, | ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c:122:5: warning: no previous prototype for 'amdgpu_sched_ioctl' [-Wmissing-prototypes] 122 | int amdgpu_sched_ioctl(struct drm_device *dev, void *data, | ^~~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_types.h:33, from drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services_types.h:30, from drivers/gpu/drm/amd/amdgpu/../include/dm_pp_interface.h:26, from drivers/gpu/drm/amd/amdgpu/amdgpu.h:67, from drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c:31: drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:76:32: warning: 'dc_fixpt_ln2_div_2' defined but not used [-Wunused-const-variable=] 76 | static const struct fixed31_32 dc_fixpt_ln2_div_2 = { 1488522236LL }; | ^~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:75:32: warning: 'dc_fixpt_ln2' defined but not used [-Wunused-const-variable=] 75 | static const struct fixed31_32 dc_fixpt_ln2 = { 2977044471LL }; | ^~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:74:32: warning: 'dc_fixpt_e' defined but not used [-Wunused-const-variable=] 74 | static const struct fixed31_32 dc_fixpt_e = { 11674931555LL }; | ^~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:73:32: warning: 'dc_fixpt_two_pi' defined but not used [-Wunused-const-variable=] 73 | static const struct fixed31_32 dc_fixpt_two_pi = { 26986075409LL }; | ^~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:72:32: warning: 'dc_fixpt_pi' defined but not used [-Wunused-const-variable=] 72 | static const struct fixed31_32 dc_fixpt_pi = { 13493037705LL }; | ^~~~~~~~~~~ cc1: some warnings being treated as errors -- In file included from include/linux/migrate.h:8, from include/linux/hmm.h:16, from drivers/gpu/drm/amd/amdgpu/amdgpu_mn.h:28, from drivers/gpu/drm/amd/amdgpu/amdgpu.h:87, from drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c:25: include/linux/hugetlb.h: In function 'want_pmd_share': 958 | if (uffd_disable_huge_pmd_share(vma)) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c: In function 'amdgpu_allocate_static_csa': drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c:40:6: warning: variable 'r' set but not used [-Wunused-but-set-variable] 40 | int r; | ^ In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_types.h:33, from drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services_types.h:30, from drivers/gpu/drm/amd/amdgpu/../include/dm_pp_interface.h:26, from drivers/gpu/drm/amd/amdgpu/amdgpu.h:67, from drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c:25: At top level: drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:76:32: warning: 'dc_fixpt_ln2_div_2' defined but not used [-Wunused-const-variable=] 76 | static const struct fixed31_32 dc_fixpt_ln2_div_2 = { 1488522236LL }; | ^~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:75:32: warning: 'dc_fixpt_ln2' defined but not used [-Wunused-const-variable=] 75 | static const struct fixed31_32 dc_fixpt_ln2 = { 2977044471LL }; | ^~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:74:32: warning: 'dc_fixpt_e' defined but not used [-Wunused-const-variable=] 74 | static const struct fixed31_32 dc_fixpt_e = { 11674931555LL }; | ^~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:73:32: warning: 'dc_fixpt_two_pi' defined but not used [-Wunused-const-variable=] 73 | static const struct fixed31_32 dc_fixpt_two_pi = { 26986075409LL }; | ^~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:72:32: warning: 'dc_fixpt_pi' defined but not used [-Wunused-const-variable=] 72 | static const struct fixed31_32 dc_fixpt_pi = { 13493037705LL }; | ^~~~~~~~~~~ cc1: some warnings being treated as errors -- In file included from include/linux/migrate.h:8, from include/linux/hmm.h:16, from drivers/gpu/drm/amd/amdgpu/amdgpu_mn.h:28, from drivers/gpu/drm/amd/amdgpu/amdgpu.h:87, from drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c:31: include/linux/hugetlb.h: In function 'want_pmd_share': 958 | if (uffd_disable_huge_pmd_share(vma)) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c: At top level: drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c:906:5: warning: no previous prototype for 'amdgpu_ras_error_cure' [-Wmissing-prototypes] 906 | int amdgpu_ras_error_cure(struct amdgpu_device *adev, | ^~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c:1480:6: warning: no previous prototype for 'amdgpu_ras_error_status_query' [-Wmissing-prototypes] 1480 | void amdgpu_ras_error_status_query(struct amdgpu_device *adev, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_types.h:33, from drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services_types.h:30, from drivers/gpu/drm/amd/amdgpu/../include/dm_pp_interface.h:26, from drivers/gpu/drm/amd/amdgpu/amdgpu.h:67, from drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c:31: drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:76:32: warning: 'dc_fixpt_ln2_div_2' defined but not used [-Wunused-const-variable=] 76 | static const struct fixed31_32 dc_fixpt_ln2_div_2 = { 1488522236LL }; | ^~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:75:32: warning: 'dc_fixpt_ln2' defined but not used [-Wunused-const-variable=] 75 | static const struct fixed31_32 dc_fixpt_ln2 = { 2977044471LL }; | ^~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:74:32: warning: 'dc_fixpt_e' defined but not used [-Wunused-const-variable=] 74 | static const struct fixed31_32 dc_fixpt_e = { 11674931555LL }; | ^~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:73:32: warning: 'dc_fixpt_two_pi' defined but not used [-Wunused-const-variable=] 73 | static const struct fixed31_32 dc_fixpt_two_pi = { 26986075409LL }; | ^~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:72:32: warning: 'dc_fixpt_pi' defined but not used [-Wunused-const-variable=] 72 | static const struct fixed31_32 dc_fixpt_pi = { 13493037705LL }; | ^~~~~~~~~~~ cc1: some warnings being treated as errors -- In file included from include/linux/migrate.h:8, from include/linux/hmm.h:16, from drivers/gpu/drm/amd/amdgpu/amdgpu_mn.h:28, from drivers/gpu/drm/amd/amdgpu/amdgpu.h:87, from drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.c:28: include/linux/hugetlb.h: In function 'want_pmd_share': 958 | if (uffd_disable_huge_pmd_share(vma)) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.c: In function 'amdgpu_pmu_init': drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.c:250:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable] 250 | int ret = 0; | ^~~ In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_types.h:33, from drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services_types.h:30, from drivers/gpu/drm/amd/amdgpu/../include/dm_pp_interface.h:26, from drivers/gpu/drm/amd/amdgpu/amdgpu.h:67, from drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.c:28: At top level: drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:76:32: warning: 'dc_fixpt_ln2_div_2' defined but not used [-Wunused-const-variable=] 76 | static const struct fixed31_32 dc_fixpt_ln2_div_2 = { 1488522236LL }; | ^~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:75:32: warning: 'dc_fixpt_ln2' defined but not used [-Wunused-const-variable=] 75 | static const struct fixed31_32 dc_fixpt_ln2 = { 2977044471LL }; | ^~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:74:32: warning: 'dc_fixpt_e' defined but not used [-Wunused-const-variable=] 74 | static const struct fixed31_32 dc_fixpt_e = { 11674931555LL }; | ^~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:73:32: warning: 'dc_fixpt_two_pi' defined but not used [-Wunused-const-variable=] 73 | static const struct fixed31_32 dc_fixpt_two_pi = { 26986075409LL }; | ^~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:72:32: warning: 'dc_fixpt_pi' defined but not used [-Wunused-const-variable=] 72 | static const struct fixed31_32 dc_fixpt_pi = { 13493037705LL }; | ^~~~~~~~~~~ cc1: some warnings being treated as errors -- In file included from include/linux/migrate.h:8, from include/linux/hmm.h:16, from drivers/gpu/drm/amd/amdgpu/amdgpu_mn.h:28, from drivers/gpu/drm/amd/amdgpu/amdgpu.h:87, from drivers/gpu/drm/amd/amdgpu/vega10_reg_init.c:23: include/linux/hugetlb.h: In function 'want_pmd_share': 958 | if (uffd_disable_huge_pmd_share(vma)) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/amd/amdgpu/vega10_reg_init.c:27: At top level: drivers/gpu/drm/amd/amdgpu/../include/vega10_ip_offset.h:208:29: warning: 'FUSE_BASE' defined but not used [-Wunused-const-variable=] 208 | static const struct IP_BASE FUSE_BASE = { { { { 0x00017400, 0, 0, 0, 0 } }, | ^~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../include/vega10_ip_offset.h:183:29: warning: 'UMC_BASE' defined but not used [-Wunused-const-variable=] 183 | static const struct IP_BASE UMC_BASE = { { { { 0x00014000, 0, 0, 0, 0 } }, | ^~~~~~~~ drivers/gpu/drm/amd/amdgpu/../include/vega10_ip_offset.h:178:29: warning: 'XDMA_BASE' defined but not used [-Wunused-const-variable=] 178 | static const struct IP_BASE XDMA_BASE = { { { { 0x00003400, 0, 0, 0, 0 } }, | ^~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../include/vega10_ip_offset.h:153:29: warning: 'RSMU_BASE' defined but not used [-Wunused-const-variable=] 153 | static const struct IP_BASE RSMU_BASE = { { { { 0x00012000, 0, 0, 0, 0 } }, | ^~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../include/vega10_ip_offset.h:128:29: warning: 'IOHC_BASE' defined but not used [-Wunused-const-variable=] 128 | static const struct IP_BASE IOHC_BASE = { { { { 0x00010000, 0, 0, 0, 0 } }, | ^~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../include/vega10_ip_offset.h:123:29: warning: 'L2IMU_BASE' defined but not used [-Wunused-const-variable=] 123 | static const struct IP_BASE L2IMU_BASE = { { { { 0x00007DC0, 0, 0, 0, 0 } }, | ^~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../include/vega10_ip_offset.h:118:29: warning: 'SYSTEMHUB_BASE' defined but not used [-Wunused-const-variable=] 118 | static const struct IP_BASE SYSTEMHUB_BASE = { { { { 0x00000EA0, 0, 0, 0, 0 } }, | ^~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../include/vega10_ip_offset.h:113:29: warning: 'ISP_BASE' defined but not used [-Wunused-const-variable=] 113 | static const struct IP_BASE ISP_BASE = { { { { 0x00018000, 0, 0, 0, 0 } }, | ^~~~~~~~ drivers/gpu/drm/amd/amdgpu/../include/vega10_ip_offset.h:108:29: warning: 'DFX_BASE' defined but not used [-Wunused-const-variable=] 108 | static const struct IP_BASE DFX_BASE = { { { { 0x00000580, 0, 0, 0, 0 } }, | ^~~~~~~~ drivers/gpu/drm/amd/amdgpu/../include/vega10_ip_offset.h:103:29: warning: 'DFX_DAP_BASE' defined but not used [-Wunused-const-variable=] 103 | static const struct IP_BASE DFX_DAP_BASE = { { { { 0x000005A0, 0, 0, 0, 0 } }, | ^~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../include/vega10_ip_offset.h:98:29: warning: 'DBGU_IO_BASE' defined but not used [-Wunused-const-variable=] 98 | static const struct IP_BASE DBGU_IO_BASE = { { { { 0x000001E0, 0, 0, 0, 0 } }, | ^~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../include/vega10_ip_offset.h:93:29: warning: 'DBGU_NBIO_BASE' defined but not used [-Wunused-const-variable=] 93 | static const struct IP_BASE DBGU_NBIO_BASE = { { { { 0x000001C0, 0, 0, 0, 0 } }, | ^~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../include/vega10_ip_offset.h:88:29: warning: 'DBGU_BASE' defined but not used [-Wunused-const-variable=] 88 | static const struct IP_BASE DBGU_BASE = { { { { 0x00000180, 0x000001A0, 0, 0, 0 } }, | ^~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../include/vega10_ip_offset.h:68:29: warning: 'MP2_BASE' defined but not used [-Wunused-const-variable=] 68 | static const struct IP_BASE MP2_BASE = { { { { 0x00016000, 0, 0, 0, 0 } }, | ^~~~~~~~ drivers/gpu/drm/amd/amdgpu/../include/vega10_ip_offset.h:53:29: warning: 'DCN_BASE' defined but not used [-Wunused-const-variable=] 53 | static const struct IP_BASE DCN_BASE = { { { { 0x00000012, 0x000000C0, 0x000034C0, 0, 0 } }, | ^~~~~~~~ In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_types.h:33, from drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services_types.h:30, from drivers/gpu/drm/amd/amdgpu/../include/dm_pp_interface.h:26, from drivers/gpu/drm/amd/amdgpu/amdgpu.h:67, from drivers/gpu/drm/amd/amdgpu/vega10_reg_init.c:23: drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:76:32: warning: 'dc_fixpt_ln2_div_2' defined but not used [-Wunused-const-variable=] 76 | static const struct fixed31_32 dc_fixpt_ln2_div_2 = { 1488522236LL }; | ^~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:75:32: warning: 'dc_fixpt_ln2' defined but not used [-Wunused-const-variable=] 75 | static const struct fixed31_32 dc_fixpt_ln2 = { 2977044471LL }; | ^~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:74:32: warning: 'dc_fixpt_e' defined but not used [-Wunused-const-variable=] 74 | static const struct fixed31_32 dc_fixpt_e = { 11674931555LL }; | ^~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:73:32: warning: 'dc_fixpt_two_pi' defined but not used [-Wunused-const-variable=] 73 | static const struct fixed31_32 dc_fixpt_two_pi = { 26986075409LL }; | ^~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:72:32: warning: 'dc_fixpt_pi' defined but not used [-Wunused-const-variable=] 72 | static const struct fixed31_32 dc_fixpt_pi = { 13493037705LL }; | ^~~~~~~~~~~ cc1: some warnings being treated as errors .. vim +/uffd_disable_huge_pmd_share +958 include/linux/hugetlb.h 954 955 static inline bool want_pmd_share(struct vm_area_struct *vma) 956 { 957 #ifdef CONFIG_ARCH_WANT_HUGE_PMD_SHARE 959 return false; 960 return true; 961 #else 962 return false; 963 #endif 964 } 965 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org