tree: https://github.com/hnaz/linux-mm master head: 2bbf0589bfeb27800c730b76eacf34528eee5418 commit: 854834b3859d2d80e31750f658bc8e4031422912 [156/523] string.h: fix incompatibility between FORTIFY_SOURCE and KASAN config: arm-allyesconfig (attached as .config) compiler: arm-linux-gnueabi-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 854834b3859d2d80e31750f658bc8e4031422912 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm 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 <<): drivers/scsi/arcmsr/arcmsr_hba.c: In function 'arcmsr_remap_pciregion': drivers/scsi/arcmsr/arcmsr_hba.c:286:30: warning: variable 'flags' set but not used [-Wunused-but-set-variable] 286 | unsigned long addr, range, flags; | ^~~~~ drivers/scsi/arcmsr/arcmsr_hba.c: In function 'arcmsr_suspend': drivers/scsi/arcmsr/arcmsr_hba.c:1070:11: warning: variable 'intmask_org' set but not used [-Wunused-but-set-variable] 1070 | uint32_t intmask_org; | ^~~~~~~~~~~ drivers/scsi/arcmsr/arcmsr_hba.c: In function 'arcmsr_done4abort_postqueue': drivers/scsi/arcmsr/arcmsr_hba.c:1410:29: warning: variable 'cdb_phy_hipart' set but not used [-Wunused-but-set-variable] 1410 | unsigned long ccb_cdb_phy, cdb_phy_hipart; | ^~~~~~~~~~~~~~ drivers/scsi/arcmsr/arcmsr_hba.c: In function 'arcmsr_hbaD_postqueue_isr': drivers/scsi/arcmsr/arcmsr_hba.c:2448:36: warning: variable 'cdb_phy_hipart' set but not used [-Wunused-but-set-variable] 2448 | unsigned long flags, ccb_cdb_phy, cdb_phy_hipart; | ^~~~~~~~~~~~~~ drivers/scsi/arcmsr/arcmsr_hba.c: In function 'arcmsr_hbaD_polling_ccbdone': drivers/scsi/arcmsr/arcmsr_hba.c:3498:36: warning: variable 'cdb_phy_hipart' set but not used [-Wunused-but-set-variable] 3498 | unsigned long flags, ccb_cdb_phy, cdb_phy_hipart; | ^~~~~~~~~~~~~~ In file included from include/linux/bitmap.h:9, from include/linux/nodemask.h:95, from include/linux/mmzone.h:17, from include/linux/gfp.h:6, from include/linux/umh.h:4, from include/linux/kmod.h:9, from include/linux/module.h:16, from drivers/scsi/arcmsr/arcmsr_hba.c:47: In function 'strncpy', inlined from 'arcmsr_handle_virtual_command' at drivers/scsi/arcmsr/arcmsr_hba.c:3059:3: include/linux/string.h:297:30: warning: '__builtin_strncpy' output truncated before terminating nul copying 4 bytes from a string of the same length [-Wstringop-truncation] 297 | #define __underlying_strncpy __builtin_strncpy | ^ >> include/linux/string.h:307:9: note: in expansion of macro '__underlying_strncpy' 307 | return __underlying_strncpy(p, q, size); | ^~~~~~~~~~~~~~~~~~~~ In function 'strncpy', inlined from 'arcmsr_handle_virtual_command' at drivers/scsi/arcmsr/arcmsr_hba.c:3057:3: include/linux/string.h:297:30: warning: '__builtin_strncpy' output truncated before terminating nul copying 16 bytes from a string of the same length [-Wstringop-truncation] 297 | #define __underlying_strncpy __builtin_strncpy | ^ >> include/linux/string.h:307:9: note: in expansion of macro '__underlying_strncpy' 307 | return __underlying_strncpy(p, q, size); | ^~~~~~~~~~~~~~~~~~~~ In function 'strncpy', inlined from 'arcmsr_handle_virtual_command' at drivers/scsi/arcmsr/arcmsr_hba.c:3055:3: include/linux/string.h:297:30: warning: '__builtin_strncpy' output truncated before terminating nul copying 8 bytes from a string of the same length [-Wstringop-truncation] 297 | #define __underlying_strncpy __builtin_strncpy | ^ >> include/linux/string.h:307:9: note: in expansion of macro '__underlying_strncpy' 307 | return __underlying_strncpy(p, q, size); | ^~~~~~~~~~~~~~~~~~~~ -- In file included from include/linux/bitmap.h:9, from include/linux/nodemask.h:95, from include/linux/mmzone.h:17, from include/linux/gfp.h:6, from include/linux/slab.h:15, from drivers/scsi/pm8001/pm8001_sas.c:41: In function 'strncpy', inlined from 'pm8001_issue_ssp_tmf' at drivers/scsi/pm8001/pm8001_sas.c:919:2: include/linux/string.h:297:30: warning: '__builtin_strncpy' specified bound 8 equals destination size [-Wstringop-truncation] 297 | #define __underlying_strncpy __builtin_strncpy | ^ >> include/linux/string.h:307:9: note: in expansion of macro '__underlying_strncpy' 307 | return __underlying_strncpy(p, q, size); | ^~~~~~~~~~~~~~~~~~~~ -- drivers/scsi/ips.c: In function 'ips_init_copperhead': drivers/scsi/ips.c:4700:10: warning: variable 'ConfigByte' set but not used [-Wunused-but-set-variable] 4700 | uint8_t ConfigByte[IPS_MAX_CONFIG_BYTES]; | ^~~~~~~~~~ drivers/scsi/ips.c: In function 'ips_init_copperhead_memio': drivers/scsi/ips.c:4794:10: warning: variable 'ConfigByte' set but not used [-Wunused-but-set-variable] 4794 | uint8_t ConfigByte[IPS_MAX_CONFIG_BYTES]; | ^~~~~~~~~~ drivers/scsi/ips.c: In function 'ips_init_phase1': drivers/scsi/ips.c:6839:10: warning: variable 'func' set but not used [-Wunused-but-set-variable] 6839 | uint8_t func; | ^~~~ drivers/scsi/ips.c:6838:10: warning: variable 'bus' set but not used [-Wunused-but-set-variable] 6838 | uint8_t bus; | ^~~ In file included from arch/arm/include/asm/io.h:23, from drivers/scsi/ips.c:164: In function 'strncpy', inlined from 'ips_send_cmd' at drivers/scsi/ips.c:3522:6: include/linux/string.h:297:30: warning: '__builtin_strncpy' output truncated before terminating nul copying 4 bytes from a string of the same length [-Wstringop-truncation] 297 | #define __underlying_strncpy __builtin_strncpy | ^ >> include/linux/string.h:307:9: note: in expansion of macro '__underlying_strncpy' 307 | return __underlying_strncpy(p, q, size); | ^~~~~~~~~~~~~~~~~~~~ In function 'strncpy', inlined from 'ips_send_cmd' at drivers/scsi/ips.c:3520:6: include/linux/string.h:297:30: warning: '__builtin_strncpy' output truncated before terminating nul copying 16 bytes from a string of the same length [-Wstringop-truncation] 297 | #define __underlying_strncpy __builtin_strncpy | ^ >> include/linux/string.h:307:9: note: in expansion of macro '__underlying_strncpy' 307 | return __underlying_strncpy(p, q, size); | ^~~~~~~~~~~~~~~~~~~~ In function 'strncpy', inlined from 'ips_send_cmd' at drivers/scsi/ips.c:3518:6: include/linux/string.h:297:30: warning: '__builtin_strncpy' output truncated before terminating nul copying 8 bytes from a string of the same length [-Wstringop-truncation] 297 | #define __underlying_strncpy __builtin_strncpy | ^ >> include/linux/string.h:307:9: note: in expansion of macro '__underlying_strncpy' 307 | return __underlying_strncpy(p, q, size); | ^~~~~~~~~~~~~~~~~~~~ In function 'strncpy', inlined from 'ips_inquiry' at drivers/scsi/ips.c:4041:2: include/linux/string.h:297:30: warning: '__builtin_strncpy' output truncated before terminating nul copying 4 bytes from a string of the same length [-Wstringop-truncation] 297 | #define __underlying_strncpy __builtin_strncpy | ^ >> include/linux/string.h:307:9: note: in expansion of macro '__underlying_strncpy' 307 | return __underlying_strncpy(p, q, size); | ^~~~~~~~~~~~~~~~~~~~ In function 'strncpy', inlined from 'ips_inquiry' at drivers/scsi/ips.c:4040:2: include/linux/string.h:297:30: warning: '__builtin_strncpy' output truncated before terminating nul copying 16 bytes from a string of the same length [-Wstringop-truncation] 297 | #define __underlying_strncpy __builtin_strncpy | ^ >> include/linux/string.h:307:9: note: in expansion of macro '__underlying_strncpy' 307 | return __underlying_strncpy(p, q, size); | ^~~~~~~~~~~~~~~~~~~~ In function 'strncpy', inlined from 'ips_inquiry' at drivers/scsi/ips.c:4039:2: include/linux/string.h:297:30: warning: '__builtin_strncpy' output truncated before terminating nul copying 8 bytes from a string of the same length [-Wstringop-truncation] 297 | #define __underlying_strncpy __builtin_strncpy | ^ >> include/linux/string.h:307:9: note: in expansion of macro '__underlying_strncpy' 307 | return __underlying_strncpy(p, q, size); | ^~~~~~~~~~~~~~~~~~~~ In function 'strncpy', inlined from 'ips_get_bios_version' at drivers/scsi/ips.c:2242:2: include/linux/string.h:297:30: warning: '__builtin_strncpy' output truncated before terminating nul copying 8 bytes from a string of the same length [-Wstringop-truncation] 297 | #define __underlying_strncpy __builtin_strncpy | ^ >> include/linux/string.h:307:9: note: in expansion of macro '__underlying_strncpy' 307 | return __underlying_strncpy(p, q, size); | ^~~~~~~~~~~~~~~~~~~~ In function 'strncpy', inlined from 'ips_write_driver_status' at drivers/scsi/ips.c:5626:2: include/linux/string.h:297:30: warning: '__builtin_strncpy' output truncated before terminating nul copying 4 bytes from a string of the same length [-Wstringop-truncation] 297 | #define __underlying_strncpy __builtin_strncpy | ^ >> include/linux/string.h:307:9: note: in expansion of macro '__underlying_strncpy' 307 | return __underlying_strncpy(p, q, size); | ^~~~~~~~~~~~~~~~~~~~ In function 'strncpy', inlined from 'ips_write_driver_status' at drivers/scsi/ips.c:5625:2: include/linux/string.h:297:30: warning: '__builtin_strncpy' output truncated before terminating nul copying 4 bytes from a string of the same length [-Wstringop-truncation] 297 | #define __underlying_strncpy __builtin_strncpy | ^ >> include/linux/string.h:307:9: note: in expansion of macro '__underlying_strncpy' 307 | return __underlying_strncpy(p, q, size); | ^~~~~~~~~~~~~~~~~~~~ In function 'strncpy', inlined from 'ips_write_driver_status' at drivers/scsi/ips.c:5627:2, inlined from 'ips_hainit' at drivers/scsi/ips.c:2433:7: include/linux/string.h:297:30: warning: '__builtin_strncpy' output may be truncated copying 4 bytes from a string of length 7 [-Wstringop-truncation] 297 | #define __underlying_strncpy __builtin_strncpy | ^ >> include/linux/string.h:307:9: note: in expansion of macro '__underlying_strncpy' 307 | return __underlying_strncpy(p, q, size); | ^~~~~~~~~~~~~~~~~~~~ In function 'strncpy', inlined from 'ips_write_driver_status' at drivers/scsi/ips.c:5628:2, inlined from 'ips_hainit' at drivers/scsi/ips.c:2433:7: include/linux/string.h:297:30: warning: '__builtin_strncpy' specified bound 4 equals destination size [-Wstringop-truncation] 297 | #define __underlying_strncpy __builtin_strncpy | ^ >> include/linux/string.h:307:9: note: in expansion of macro '__underlying_strncpy' 307 | return __underlying_strncpy(p, q, size); | ^~~~~~~~~~~~~~~~~~~~ -- drivers/scsi/3w-sas.c: In function 'twl_scsiop_execute_scsi': drivers/scsi/3w-sas.c:298:22: warning: variable 'sglist' set but not used [-Wunused-but-set-variable] 298 | struct scatterlist *sglist = NULL, *sg; | ^~~~~~ drivers/scsi/3w-sas.c: In function 'twl_scsi_biosparam': drivers/scsi/3w-sas.c:1411:23: warning: variable 'tw_dev' set but not used [-Wunused-but-set-variable] 1411 | TW_Device_Extension *tw_dev; | ^~~~~~ In file included from include/linux/bitmap.h:9, from include/linux/nodemask.h:95, from include/linux/mmzone.h:17, from include/linux/gfp.h:6, from include/linux/umh.h:4, from include/linux/kmod.h:9, from include/linux/module.h:16, from drivers/scsi/3w-sas.c:53: In function 'strncpy', inlined from 'twl_reset_sequence' at drivers/scsi/3w-sas.c:1331:3: include/linux/string.h:297:30: warning: '__builtin_strncpy' output truncated before terminating nul copying 11 bytes from a string of the same length [-Wstringop-truncation] 297 | #define __underlying_strncpy __builtin_strncpy | ^ >> include/linux/string.h:307:9: note: in expansion of macro '__underlying_strncpy' 307 | return __underlying_strncpy(p, q, size); | ^~~~~~~~~~~~~~~~~~~~ -- In file included from include/linux/bitmap.h:9, from include/linux/nodemask.h:95, from include/linux/mmzone.h:17, from include/linux/gfp.h:6, from include/linux/slab.h:15, from include/linux/crypto.h:19, from include/crypto/hash.h:11, from include/linux/uio.h:10, from include/linux/socket.h:8, from include/uapi/linux/if.h:25, from include/scsi/libfc.h:12, from drivers/scsi/libfc/fc_elsct.c:17: In function 'strncpy', inlined from 'fc_ct_ms_fill.constprop' at include/scsi/fc_encode.h:263:3: include/linux/string.h:297:30: warning: '__builtin_strncpy' output may be truncated copying 64 bytes from a string of length 79 [-Wstringop-truncation] 297 | #define __underlying_strncpy __builtin_strncpy | ^ >> include/linux/string.h:307:9: note: in expansion of macro '__underlying_strncpy' 307 | return __underlying_strncpy(p, q, size); | ^~~~~~~~~~~~~~~~~~~~ In function 'strncpy', inlined from 'fc_ct_ms_fill.constprop' at include/scsi/fc_encode.h:275:3: include/linux/string.h:297:30: warning: '__builtin_strncpy' output may be truncated copying 64 bytes from a string of length 79 [-Wstringop-truncation] 297 | #define __underlying_strncpy __builtin_strncpy | ^ >> include/linux/string.h:307:9: note: in expansion of macro '__underlying_strncpy' 307 | return __underlying_strncpy(p, q, size); | ^~~~~~~~~~~~~~~~~~~~ vim +/__underlying_strncpy +307 include/linux/string.h 299 300 __FORTIFY_INLINE char *strncpy(char *p, const char *q, __kernel_size_t size) 301 { 302 size_t p_size = __builtin_object_size(p, 0); 303 if (__builtin_constant_p(size) && p_size < size) 304 __write_overflow(); 305 if (p_size < size) 306 fortify_panic(__func__); > 307 return __underlying_strncpy(p, q, size); 308 } 309 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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