On Wed, 6 Nov 2019 at 21:35, kbuild test robot <lkp@xxxxxxxxx> wrote: > > 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> Thanks! Will send v4 with a fix. > 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 > > -- > You received this message because you are subscribed to the Google Groups "kasan-dev" group. > To unsubscribe from this group and stop receiving emails from it, send an email to kasan-dev+unsubscribe@xxxxxxxxxxxxxxxx. > To view this discussion on the web visit https://groups.google.com/d/msgid/kasan-dev/201911070445.vRUSVUAX%25lkp%40intel.com.
