Hi Eric, [auto build test ERROR on linus/master] [also build test ERROR on v4.12-rc2 next-20170523] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Eric-W-Biederman/ptrace-Properly-initialize-ptracer_cred-on-fork/20170523-143551 config: alpha-defconfig (attached as .config) compiler: alpha-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=alpha All errors (new ones prefixed by >>): In file included from ./arch/alpha/include/generated/asm/current.h:1:0, from include/linux/wait.h:10, from include/linux/mmzone.h:9, from include/linux/gfp.h:5, from include/linux/mm.h:9, from include/linux/pagemap.h:7, from arch/alpha/mm/init.c:9: include/linux/ptrace.h: In function 'ptrace_init_task': >> include/asm-generic/current.h:6:23: error: passing argument 3 of >> '__ptrace_link' discards 'const' qualifier from pointer target type >> [-Werror=discarded-qualifiers] #define get_current() (current_thread_info()->task) ^ include/asm-generic/current.h:7:17: note: in expansion of macro 'get_current' #define current get_current() ^~~~~~~~~~~ include/linux/ptrace.h:210:41: note: in expansion of macro 'current' __ptrace_link(child, current->parent, current->ptracer_cred); ^~~~~~~ In file included from arch/alpha/mm/init.c:16:0: include/linux/ptrace.h:56:13: note: expected 'struct cred *' but argument is of type 'const struct cred *' extern void __ptrace_link(struct task_struct *child, ^~~~~~~~~~~~~ cc1: all warnings being treated as errors vim +6 include/asm-generic/current.h aafe4dbe Arnd Bergmann 2009-05-13 1 #ifndef __ASM_GENERIC_CURRENT_H aafe4dbe Arnd Bergmann 2009-05-13 2 #define __ASM_GENERIC_CURRENT_H aafe4dbe Arnd Bergmann 2009-05-13 3 aafe4dbe Arnd Bergmann 2009-05-13 4 #include <linux/thread_info.h> aafe4dbe Arnd Bergmann 2009-05-13 5 aafe4dbe Arnd Bergmann 2009-05-13 @6 #define get_current() (current_thread_info()->task) aafe4dbe Arnd Bergmann 2009-05-13 7 #define current get_current() aafe4dbe Arnd Bergmann 2009-05-13 8 aafe4dbe Arnd Bergmann 2009-05-13 9 #endif /* __ASM_GENERIC_CURRENT_H */ :::::: The code at line 6 was first introduced by commit :::::: aafe4dbed0bf6cbdb2e9f03e1d42f8a540d8541d asm-generic: add generic versions of common headers :::::: TO: Arnd Bergmann <[email protected]> :::::: CC: Arnd Bergmann <arnd@klappe2.(none)> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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