Hi Marco, I love your patch! Perhaps something to improve: [auto build test WARNING on linus/master] [also build test WARNING on v5.4-rc6] [cannot apply to next-20191106] [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/Marco-Elver/Add-Kernel-Concurrency-Sanitizer-KCSAN/20191105-002542 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git a99d8080aaf358d5d23581244e5da23b35e340b9 config: x86_64-randconfig-a004-201944 (attached as .config) compiler: gcc-4.9 (Debian 4.9.2-10+deb8u1) 4.9.2 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): In file included from include/linux/compiler_types.h:59:0, from <command-line>:0: >> include/linux/compiler_attributes.h:35:29: warning: "__GCC4_has_attribute___no_sanitize_thread__" is not defined [-Wundef] # define __has_attribute(x) __GCC4_has_attribute_##x ^ >> include/linux/compiler-gcc.h:148:5: note: in expansion of macro '__has_attribute' #if __has_attribute(__no_sanitize_thread__) && defined(__SANITIZE_THREAD__) ^ -- In file included from include/linux/compiler_types.h:59:0, from <command-line>:0: >> include/linux/compiler_attributes.h:35:29: warning: "__GCC4_has_attribute___no_sanitize_thread__" is not defined [-Wundef] # define __has_attribute(x) __GCC4_has_attribute_##x ^ >> include/linux/compiler-gcc.h:148:5: note: in expansion of macro '__has_attribute' #if __has_attribute(__no_sanitize_thread__) && defined(__SANITIZE_THREAD__) ^ fs/afs/dynroot.c: In function 'afs_dynroot_lookup': fs/afs/dynroot.c:117:6: warning: 'len' may be used uninitialized in this function [-Wmaybe-uninitialized] ret = lookup_one_len(name, dentry->d_parent, len); ^ fs/afs/dynroot.c:91:6: note: 'len' was declared here int len; ^ -- In file included from include/linux/compiler_types.h:59:0, from <command-line>:0: >> include/linux/compiler_attributes.h:35:29: warning: "__GCC4_has_attribute___no_sanitize_thread__" is not defined [-Wundef] # define __has_attribute(x) __GCC4_has_attribute_##x ^ >> include/linux/compiler-gcc.h:148:5: note: in expansion of macro '__has_attribute' #if __has_attribute(__no_sanitize_thread__) && defined(__SANITIZE_THREAD__) ^ 7 real 2 user 5 sys 107.26% cpu make modules_prepare -- In file included from include/linux/compiler_types.h:59:0, from <command-line>:0: >> include/linux/compiler_attributes.h:35:29: warning: "__GCC4_has_attribute___no_sanitize_thread__" is not defined [-Wundef] # define __has_attribute(x) __GCC4_has_attribute_##x ^ >> include/linux/compiler-gcc.h:148:5: note: in expansion of macro '__has_attribute' #if __has_attribute(__no_sanitize_thread__) && defined(__SANITIZE_THREAD__) ^ In file included from include/linux/compiler_types.h:59:0, from <command-line>:0: >> include/linux/compiler_attributes.h:35:29: warning: "__GCC4_has_attribute___no_sanitize_thread__" is not defined [-Wundef] # define __has_attribute(x) __GCC4_has_attribute_##x ^ >> include/linux/compiler-gcc.h:148:5: note: in expansion of macro '__has_attribute' #if __has_attribute(__no_sanitize_thread__) && defined(__SANITIZE_THREAD__) ^ In file included from include/linux/compiler_types.h:59:0, from <command-line>:0: >> include/linux/compiler_attributes.h:35:29: warning: "__GCC4_has_attribute___no_sanitize_thread__" is not defined [-Wundef] # define __has_attribute(x) __GCC4_has_attribute_##x ^ >> include/linux/compiler-gcc.h:148:5: note: in expansion of macro '__has_attribute' #if __has_attribute(__no_sanitize_thread__) && defined(__SANITIZE_THREAD__) ^ In file included from include/linux/compiler_types.h:59:0, from <command-line>:0: >> include/linux/compiler_attributes.h:35:29: warning: "__GCC4_has_attribute___no_sanitize_thread__" is not defined [-Wundef] # define __has_attribute(x) __GCC4_has_attribute_##x ^ >> include/linux/compiler-gcc.h:148:5: note: in expansion of macro '__has_attribute' #if __has_attribute(__no_sanitize_thread__) && defined(__SANITIZE_THREAD__) ^ In file included from include/linux/compiler_types.h:59:0, from <command-line>:0: >> include/linux/compiler_attributes.h:35:29: warning: "__GCC4_has_attribute___no_sanitize_thread__" is not defined [-Wundef] # define __has_attribute(x) __GCC4_has_attribute_##x ^ >> include/linux/compiler-gcc.h:148:5: note: in expansion of macro '__has_attribute' #if __has_attribute(__no_sanitize_thread__) && defined(__SANITIZE_THREAD__) ^ 8 real 24 user 10 sys 405.87% cpu make prepare vim +/__has_attribute +148 include/linux/compiler-gcc.h 147 > 148 #if __has_attribute(__no_sanitize_thread__) && defined(__SANITIZE_THREAD__) 149 #define __no_sanitize_thread \ 150 __attribute__((__noinline__)) __attribute__((no_sanitize_thread)) 151 #else 152 #define __no_sanitize_thread 153 #endif 154 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx Intel Corporation
Attachment:
.config.gz
Description: application/gzip
