Hi Emil, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on tegra-drm/drm/tegra/for-next] [also build test WARNING on linus/master v5.7-rc6 next-20200518] [cannot apply to linux/master] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Emil-Velikov/linux-bits-h-adjust-GENMASK_INPUT_CHECK-check/20200519-205452 base: git://anongit.freedesktop.org/tegra/linux.git drm/tegra/for-next config: mips-allyesconfig (attached as .config) compiler: mips-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 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=mips If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>, old ones prefixed by <<): In file included from include/linux/bits.h:23, from include/linux/bitops.h:5, from include/linux/kernel.h:12, from include/linux/list.h:9, from include/linux/preempt.h:11, from include/linux/spinlock.h:51, from include/linux/seqlock.h:36, from include/linux/time.h:6, from include/linux/compat.h:10, from arch/mips/kernel/asm-offsets.c:12: arch/mips/include/asm/mips-cm.h: In function 'mips_cm_max_vp_width': include/linux/build_bug.h:16:51: error: negative width in bit-field '<anonymous>' 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/bits.h:25:3: note: in expansion of macro 'BUILD_BUG_ON_ZERO' 25 | (BUILD_BUG_ON_ZERO(!__builtin_choose_expr( | ^~~~~~~~~~~~~~~~~ include/linux/bits.h:39:3: note: in expansion of macro 'GENMASK_INPUT_CHECK' 39 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~ >> arch/mips/include/asm/mips-cm.h:152:28: note: in expansion of macro 'GENMASK' 152 | #define CM_GCR_REV_MAJOR GENMASK(15, 8) | ^~~~~~~ >> arch/mips/include/asm/mips-cm.h:156:22: note: in expansion of macro 'CM_GCR_REV_MAJOR' 156 | (((major) << __ffs(CM_GCR_REV_MAJOR)) | | ^~~~~~~~~~~~~~~~ >> arch/mips/include/asm/mips-cm.h:161:23: note: in expansion of macro 'CM_ENCODE_REV' 161 | #define CM_REV_CM3 CM_ENCODE_REV(8, 0) | ^~~~~~~~~~~~~ >> arch/mips/include/asm/mips-cm.h:367:28: note: in expansion of macro 'CM_REV_CM3' 367 | if (mips_cm_revision() >= CM_REV_CM3) | ^~~~~~~~~~ include/linux/build_bug.h:16:51: error: negative width in bit-field '<anonymous>' 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/bits.h:25:3: note: in expansion of macro 'BUILD_BUG_ON_ZERO' 25 | (BUILD_BUG_ON_ZERO(!__builtin_choose_expr( | ^~~~~~~~~~~~~~~~~ include/linux/bits.h:39:3: note: in expansion of macro 'GENMASK_INPUT_CHECK' 39 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~ arch/mips/include/asm/mips-cm.h:153:28: note: in expansion of macro 'GENMASK' 153 | #define CM_GCR_REV_MINOR GENMASK(7, 0) | ^~~~~~~ >> arch/mips/include/asm/mips-cm.h:157:22: note: in expansion of macro 'CM_GCR_REV_MINOR' 157 | ((minor) << __ffs(CM_GCR_REV_MINOR))) | ^~~~~~~~~~~~~~~~ >> arch/mips/include/asm/mips-cm.h:161:23: note: in expansion of macro 'CM_ENCODE_REV' 161 | #define CM_REV_CM3 CM_ENCODE_REV(8, 0) | ^~~~~~~~~~~~~ >> arch/mips/include/asm/mips-cm.h:367:28: note: in expansion of macro 'CM_REV_CM3' 367 | if (mips_cm_revision() >= CM_REV_CM3) | ^~~~~~~~~~ include/linux/build_bug.h:16:51: error: negative width in bit-field '<anonymous>' 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/bits.h:25:3: note: in expansion of macro 'BUILD_BUG_ON_ZERO' 25 | (BUILD_BUG_ON_ZERO(!__builtin_choose_expr( | ^~~~~~~~~~~~~~~~~ include/linux/bits.h:39:3: note: in expansion of macro 'GENMASK_INPUT_CHECK' 39 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~ arch/mips/include/asm/mips-cm.h:239:36: note: in expansion of macro 'GENMASK' 239 | #define CM_GCR_SYS_CONFIG2_MAXVPW GENMASK(3, 0) | ^~~~~~~ >> arch/mips/include/asm/mips-cm.h:368:35: note: in expansion of macro 'CM_GCR_SYS_CONFIG2_MAXVPW' 368 | return read_gcr_sys_config2() & CM_GCR_SYS_CONFIG2_MAXVPW; | ^~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:16:51: error: negative width in bit-field '<anonymous>' 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/bits.h:25:3: note: in expansion of macro 'BUILD_BUG_ON_ZERO' 25 | (BUILD_BUG_ON_ZERO(!__builtin_choose_expr( | ^~~~~~~~~~~~~~~~~ include/linux/bits.h:39:3: note: in expansion of macro 'GENMASK_INPUT_CHECK' 39 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~ arch/mips/include/asm/mips-cm.h:293:33: note: in expansion of macro 'GENMASK' 293 | #define CM_GCR_Cx_CONFIG_PVPE GENMASK(9, 0) | ^~~~~~~ >> arch/mips/include/asm/mips-cm.h:376:32: note: in expansion of macro 'CM_GCR_Cx_CONFIG_PVPE' 376 | cfg = read_gcr_cl_config() & CM_GCR_Cx_CONFIG_PVPE; | ^~~~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:16:51: error: negative width in bit-field '<anonymous>' 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/bits.h:25:3: note: in expansion of macro 'BUILD_BUG_ON_ZERO' 25 | (BUILD_BUG_ON_ZERO(!__builtin_choose_expr( | ^~~~~~~~~~~~~~~~~ include/linux/bits.h:39:3: note: in expansion of macro 'GENMASK_INPUT_CHECK' 39 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~ arch/mips/include/asm/mips-cm.h:293:33: note: in expansion of macro 'GENMASK' 293 | #define CM_GCR_Cx_CONFIG_PVPE GENMASK(9, 0) | ^~~~~~~ arch/mips/include/asm/mips-cm.h:377:24: note: in expansion of macro 'CM_GCR_Cx_CONFIG_PVPE' 377 | return (cfg >> __ffs(CM_GCR_Cx_CONFIG_PVPE)) + 1; | ^~~~~~~~~~~~~~~~~~~~~ arch/mips/include/asm/mips-cps.h: In function 'mips_cps_numclusters': include/linux/build_bug.h:16:51: error: negative width in bit-field '<anonymous>' 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/bits.h:25:3: note: in expansion of macro 'BUILD_BUG_ON_ZERO' 25 | (BUILD_BUG_ON_ZERO(!__builtin_choose_expr( | ^~~~~~~~~~~~~~~~~ include/linux/bits.h:39:3: note: in expansion of macro 'GENMASK_INPUT_CHECK' 39 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~ >> arch/mips/include/asm/mips-cm.h:152:28: note: in expansion of macro 'GENMASK' 152 | #define CM_GCR_REV_MAJOR GENMASK(15, 8) | ^~~~~~~ >> arch/mips/include/asm/mips-cm.h:156:22: note: in expansion of macro 'CM_GCR_REV_MAJOR' 156 | (((major) << __ffs(CM_GCR_REV_MAJOR)) | | ^~~~~~~~~~~~~~~~ arch/mips/include/asm/mips-cm.h:162:25: note: in expansion of macro 'CM_ENCODE_REV' 162 | #define CM_REV_CM3_5 CM_ENCODE_REV(9, 0) | ^~~~~~~~~~~~~ >> arch/mips/include/asm/mips-cps.h:117:27: note: in expansion of macro 'CM_REV_CM3_5' 117 | if (mips_cm_revision() < CM_REV_CM3_5) | ^~~~~~~~~~~~ include/linux/build_bug.h:16:51: error: negative width in bit-field '<anonymous>' 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/bits.h:25:3: note: in expansion of macro 'BUILD_BUG_ON_ZERO' 25 | (BUILD_BUG_ON_ZERO(!__builtin_choose_expr( | ^~~~~~~~~~~~~~~~~ include/linux/bits.h:39:3: note: in expansion of macro 'GENMASK_INPUT_CHECK' 39 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~ arch/mips/include/asm/mips-cm.h:153:28: note: in expansion of macro 'GENMASK' 153 | #define CM_GCR_REV_MINOR GENMASK(7, 0) | ^~~~~~~ >> arch/mips/include/asm/mips-cm.h:157:22: note: in expansion of macro 'CM_GCR_REV_MINOR' 157 | ((minor) << __ffs(CM_GCR_REV_MINOR))) | ^~~~~~~~~~~~~~~~ arch/mips/include/asm/mips-cm.h:162:25: note: in expansion of macro 'CM_ENCODE_REV' 162 | #define CM_REV_CM3_5 CM_ENCODE_REV(9, 0) | ^~~~~~~~~~~~~ >> arch/mips/include/asm/mips-cps.h:117:27: note: in expansion of macro 'CM_REV_CM3_5' 117 | if (mips_cm_revision() < CM_REV_CM3_5) | ^~~~~~~~~~~~ include/linux/build_bug.h:16:51: error: negative width in bit-field '<anonymous>' 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/bits.h:25:3: note: in expansion of macro 'BUILD_BUG_ON_ZERO' 25 | (BUILD_BUG_ON_ZERO(!__builtin_choose_expr( | ^~~~~~~~~~~~~~~~~ include/linux/bits.h:39:3: note: in expansion of macro 'GENMASK_INPUT_CHECK' 39 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~ arch/mips/include/asm/mips-cm.h:133:37: note: in expansion of macro 'GENMASK' 133 | #define CM_GCR_CONFIG_NUM_CLUSTERS GENMASK(29, 23) | ^~~~~~~ >> arch/mips/include/asm/mips-cps.h:120:37: note: in expansion of macro 'CM_GCR_CONFIG_NUM_CLUSTERS' 120 | num_clusters = read_gcr_config() & CM_GCR_CONFIG_NUM_CLUSTERS; | ^~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:16:51: error: negative width in bit-field '<anonymous>' 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/bits.h:25:3: note: in expansion of macro 'BUILD_BUG_ON_ZERO' 25 | (BUILD_BUG_ON_ZERO(!__builtin_choose_expr( | ^~~~~~~~~~~~~~~~~ include/linux/bits.h:39:3: note: in expansion of macro 'GENMASK_INPUT_CHECK' 39 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~ arch/mips/include/asm/mips-cm.h:133:37: note: in expansion of macro 'GENMASK' 133 | #define CM_GCR_CONFIG_NUM_CLUSTERS GENMASK(29, 23) | ^~~~~~~ arch/mips/include/asm/mips-cps.h:121:25: note: in expansion of macro 'CM_GCR_CONFIG_NUM_CLUSTERS' 121 | num_clusters >>= __ffs(CM_GCR_CONFIG_NUM_CLUSTERS); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ arch/mips/include/asm/mips-cps.h: In function 'mips_cps_cluster_config': include/linux/build_bug.h:16:51: error: negative width in bit-field '<anonymous>' 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/bits.h:25:3: note: in expansion of macro 'BUILD_BUG_ON_ZERO' 25 | (BUILD_BUG_ON_ZERO(!__builtin_choose_expr( | ^~~~~~~~~~~~~~~~~ include/linux/bits.h:39:3: note: in expansion of macro 'GENMASK_INPUT_CHECK' 39 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~ >> arch/mips/include/asm/mips-cm.h:152:28: note: in expansion of macro 'GENMASK' 152 | #define CM_GCR_REV_MAJOR GENMASK(15, 8) | ^~~~~~~ >> arch/mips/include/asm/mips-cm.h:156:22: note: in expansion of macro 'CM_GCR_REV_MAJOR' 156 | (((major) << __ffs(CM_GCR_REV_MAJOR)) | | ^~~~~~~~~~~~~~~~ arch/mips/include/asm/mips-cm.h:162:25: note: in expansion of macro 'CM_ENCODE_REV' 162 | #define CM_REV_CM3_5 CM_ENCODE_REV(9, 0) | ^~~~~~~~~~~~~ arch/mips/include/asm/mips-cps.h:137:27: note: in expansion of macro 'CM_REV_CM3_5' 137 | if (mips_cm_revision() < CM_REV_CM3_5) { | ^~~~~~~~~~~~ include/linux/build_bug.h:16:51: error: negative width in bit-field '<anonymous>' 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/bits.h:25:3: note: in expansion of macro 'BUILD_BUG_ON_ZERO' 25 | (BUILD_BUG_ON_ZERO(!__builtin_choose_expr( | ^~~~~~~~~~~~~~~~~ include/linux/bits.h:39:3: note: in expansion of macro 'GENMASK_INPUT_CHECK' 39 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~ arch/mips/include/asm/mips-cm.h:153:28: note: in expansion of macro 'GENMASK' 153 | #define CM_GCR_REV_MINOR GENMASK(7, 0) | ^~~~~~~ >> arch/mips/include/asm/mips-cm.h:157:22: note: in expansion of macro 'CM_GCR_REV_MINOR' 157 | ((minor) << __ffs(CM_GCR_REV_MINOR))) | ^~~~~~~~~~~~~~~~ arch/mips/include/asm/mips-cm.h:162:25: note: in expansion of macro 'CM_ENCODE_REV' 162 | #define CM_REV_CM3_5 CM_ENCODE_REV(9, 0) | ^~~~~~~~~~~~~ arch/mips/include/asm/mips-cps.h:137:27: note: in expansion of macro 'CM_REV_CM3_5' 137 | if (mips_cm_revision() < CM_REV_CM3_5) { | ^~~~~~~~~~~~ arch/mips/include/asm/mips-cps.h: In function 'mips_cps_numcores': include/linux/build_bug.h:16:51: error: negative width in bit-field '<anonymous>' 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/bits.h:25:3: note: in expansion of macro 'BUILD_BUG_ON_ZERO' 25 | (BUILD_BUG_ON_ZERO(!__builtin_choose_expr( | ^~~~~~~~~~~~~~~~~ include/linux/bits.h:39:3: note: in expansion of macro 'GENMASK_INPUT_CHECK' 39 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~ arch/mips/include/asm/mips-cm.h:135:32: note: in expansion of macro 'GENMASK' 135 | #define CM_GCR_CONFIG_PCORES GENMASK(7, 0) | ^~~~~~~ >> arch/mips/include/asm/mips-cps.h:172:50: note: in expansion of macro 'CM_GCR_CONFIG_PCORES' 172 | return (mips_cps_cluster_config(cluster) + 1) & CM_GCR_CONFIG_PCORES; | ^~~~~~~~~~~~~~~~~~~~ arch/mips/include/asm/mips-cps.h: In function 'mips_cps_numiocu': include/linux/build_bug.h:16:51: error: negative width in bit-field '<anonymous>' 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/bits.h:25:3: note: in expansion of macro 'BUILD_BUG_ON_ZERO' 25 | (BUILD_BUG_ON_ZERO(!__builtin_choose_expr( | ^~~~~~~~~~~~~~~~~ include/linux/bits.h:39:3: note: in expansion of macro 'GENMASK_INPUT_CHECK' 39 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~ arch/mips/include/asm/mips-cm.h:134:33: note: in expansion of macro 'GENMASK' 134 | #define CM_GCR_CONFIG_NUMIOCU GENMASK(15, 8) | ^~~~~~~ >> arch/mips/include/asm/mips-cps.h:189:48: note: in expansion of macro 'CM_GCR_CONFIG_NUMIOCU' 189 | num_iocu = mips_cps_cluster_config(cluster) & CM_GCR_CONFIG_NUMIOCU; | ^~~~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:16:51: error: negative width in bit-field '<anonymous>' 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/bits.h:25:3: note: in expansion of macro 'BUILD_BUG_ON_ZERO' 25 | (BUILD_BUG_ON_ZERO(!__builtin_choose_expr( | ^~~~~~~~~~~~~~~~~ include/linux/bits.h:39:3: note: in expansion of macro 'GENMASK_INPUT_CHECK' 39 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~ arch/mips/include/asm/mips-cm.h:134:33: note: in expansion of macro 'GENMASK' 134 | #define CM_GCR_CONFIG_NUMIOCU GENMASK(15, 8) | ^~~~~~~ arch/mips/include/asm/mips-cps.h:190:21: note: in expansion of macro 'CM_GCR_CONFIG_NUMIOCU' 190 | num_iocu >>= __ffs(CM_GCR_CONFIG_NUMIOCU); | ^~~~~~~~~~~~~~~~~~~~~ arch/mips/include/asm/mips-cps.h: In function 'mips_cps_numvps': include/linux/build_bug.h:16:51: error: negative width in bit-field '<anonymous>' 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/bits.h:25:3: note: in expansion of macro 'BUILD_BUG_ON_ZERO' 25 | (BUILD_BUG_ON_ZERO(!__builtin_choose_expr( | ^~~~~~~~~~~~~~~~~ include/linux/bits.h:39:3: note: in expansion of macro 'GENMASK_INPUT_CHECK' 39 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~ arch/mips/include/asm/mips-cm.h:152:28: note: in expansion of macro 'GENMASK' 152 | #define CM_GCR_REV_MAJOR GENMASK(15, 8) | ^~~~~~~ arch/mips/include/asm/mips-cm.h:156:22: note: in expansion of macro 'CM_GCR_REV_MAJOR' 156 | (((major) << __ffs(CM_GCR_REV_MAJOR)) | | ^~~~~~~~~~~~~~~~ arch/mips/include/asm/mips-cm.h:162:25: note: in expansion of macro 'CM_ENCODE_REV' 162 | #define CM_REV_CM3_5 CM_ENCODE_REV(9, 0) | ^~~~~~~~~~~~~ arch/mips/include/asm/mips-cps.h:216:27: note: in expansion of macro 'CM_REV_CM3_5' 216 | if (mips_cm_revision() < CM_REV_CM3_5) { | ^~~~~~~~~~~~ include/linux/build_bug.h:16:51: error: negative width in bit-field '<anonymous>' 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/bits.h:25:3: note: in expansion of macro 'BUILD_BUG_ON_ZERO' 25 | (BUILD_BUG_ON_ZERO(!__builtin_choose_expr( | ^~~~~~~~~~~~~~~~~ include/linux/bits.h:39:3: note: in expansion of macro 'GENMASK_INPUT_CHECK' 39 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~ arch/mips/include/asm/mips-cm.h:153:28: note: in expansion of macro 'GENMASK' 153 | #define CM_GCR_REV_MINOR GENMASK(7, 0) | ^~~~~~~ arch/mips/include/asm/mips-cm.h:157:22: note: in expansion of macro 'CM_GCR_REV_MINOR' 157 | ((minor) << __ffs(CM_GCR_REV_MINOR))) | ^~~~~~~~~~~~~~~~ arch/mips/include/asm/mips-cm.h:162:25: note: in expansion of macro 'CM_ENCODE_REV' 162 | #define CM_REV_CM3_5 CM_ENCODE_REV(9, 0) | ^~~~~~~~~~~~~ arch/mips/include/asm/mips-cps.h:216:27: note: in expansion of macro 'CM_REV_CM3_5' 216 | if (mips_cm_revision() < CM_REV_CM3_5) { | ^~~~~~~~~~~~ include/linux/build_bug.h:16:51: error: negative width in bit-field '<anonymous>' 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/bits.h:25:3: note: in expansion of macro 'BUILD_BUG_ON_ZERO' 25 | (BUILD_BUG_ON_ZERO(!__builtin_choose_expr( | ^~~~~~~~~~~~~~~~~ include/linux/bits.h:39:3: note: in expansion of macro 'GENMASK_INPUT_CHECK' 39 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~ arch/mips/include/asm/mips-cm.h:293:33: note: in expansion of macro 'GENMASK' 293 | #define CM_GCR_Cx_CONFIG_PVPE GENMASK(9, 0) | ^~~~~~~ arch/mips/include/asm/mips-cps.h:233:21: note: in expansion of macro 'CM_GCR_Cx_CONFIG_PVPE' 233 | return (cfg + 1) & CM_GCR_Cx_CONFIG_PVPE; | ^~~~~~~~~~~~~~~~~~~~~ In file included from include/linux/bits.h:23, from include/linux/bitops.h:5, from include/linux/kernel.h:12, from include/linux/list.h:9, from include/linux/preempt.h:11, from include/linux/spinlock.h:51, from include/linux/seqlock.h:36, from include/linux/time.h:6, from include/linux/compat.h:10, from arch/mips/kernel/asm-offsets.c:12: include/linux/kvm_host.h: In function 'kvm_make_request': include/linux/build_bug.h:16:51: error: negative width in bit-field '<anonymous>' 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/bits.h:25:3: note: in expansion of macro 'BUILD_BUG_ON_ZERO' 25 | (BUILD_BUG_ON_ZERO(!__builtin_choose_expr( | ^~~~~~~~~~~~~~~~~ include/linux/bits.h:39:3: note: in expansion of macro 'GENMASK_INPUT_CHECK' 39 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~ include/linux/kvm_host.h:138:36: note: in expansion of macro 'GENMASK' 138 | #define KVM_REQUEST_MASK GENMASK(7,0) | ^~~~~~~ include/linux/kvm_host.h:1231:16: note: in expansion of macro 'KVM_REQUEST_MASK' 1231 | set_bit(req & KVM_REQUEST_MASK, (void *)&vcpu->requests); vim +/GENMASK +152 arch/mips/include/asm/mips-cm.h 93c5bba575cedbe Paul Burton 2017-08-12 149 93c5bba575cedbe Paul Burton 2017-08-12 150 /* GCR_REV - Indicates the Coherence Manager revision */ b025d51873d5fe6 Paul Burton 2017-08-12 151 GCR_ACCESSOR_RO(32, 0x030, rev) 93c5bba575cedbe Paul Burton 2017-08-12 @152 #define CM_GCR_REV_MAJOR GENMASK(15, 8) 93c5bba575cedbe Paul Burton 2017-08-12 153 #define CM_GCR_REV_MINOR GENMASK(7, 0) 93c5bba575cedbe Paul Burton 2017-08-12 154 93c5bba575cedbe Paul Burton 2017-08-12 155 #define CM_ENCODE_REV(major, minor) \ 93c5bba575cedbe Paul Burton 2017-08-12 @156 (((major) << __ffs(CM_GCR_REV_MAJOR)) | \ 93c5bba575cedbe Paul Burton 2017-08-12 @157 ((minor) << __ffs(CM_GCR_REV_MINOR))) 93c5bba575cedbe Paul Burton 2017-08-12 158 93c5bba575cedbe Paul Burton 2017-08-12 159 #define CM_REV_CM2 CM_ENCODE_REV(6, 0) 93c5bba575cedbe Paul Burton 2017-08-12 160 #define CM_REV_CM2_5 CM_ENCODE_REV(7, 0) 93c5bba575cedbe Paul Burton 2017-08-12 @161 #define CM_REV_CM3 CM_ENCODE_REV(8, 0) 23cb600e3fd4068 Paul Burton 2017-08-12 162 #define CM_REV_CM3_5 CM_ENCODE_REV(9, 0) 93c5bba575cedbe Paul Burton 2017-08-12 163 :::::: The code at line 152 was first introduced by commit :::::: 93c5bba575cedbeb50c9e1b0676230139b0d1be1 MIPS: CM: Use BIT/GENMASK for register fields, order & drop shifts :::::: TO: Paul Burton <paul.burton@xxxxxxxxxx> :::::: CC: Ralf Baechle <ralf@xxxxxxxxxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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