Hi George, [auto build test ERROR on v4.3-rc5 -- if it's inappropriate base, please suggest rules for selecting the more suitable base]
url: https://github.com/0day-ci/linux/commits/George-Spelvin/Alternate-sclable-urandom-patchset/20151016-133627 config: x86_64-randconfig-x010-10130227 (attached as .config) reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): In file included from include/asm-generic/percpu.h:6:0, from arch/x86/include/asm/percpu.h:551, from arch/x86/include/asm/preempt.h:5, from include/linux/preempt.h:64, from include/linux/spinlock.h:50, from include/linux/seqlock.h:35, from include/linux/time.h:5, from include/uapi/linux/timex.h:56, from include/linux/timex.h:56, from include/linux/sched.h:19, from include/linux/utsname.h:5, from drivers/char/random.c:238: drivers/char/random.c: In function 'extract_buf': >> include/linux/percpu-defs.h:91:33: error: section attribute cannot be >> specified for local variables extern __PCPU_DUMMY_ATTRS char __pcpu_unique_##name; \ ^ include/linux/percpu-defs.h:116:2: note: in expansion of macro 'DEFINE_PER_CPU_SECTION' DEFINE_PER_CPU_SECTION(type, name, "") ^ drivers/char/random.c:1134:9: note: in expansion of macro 'DEFINE_PER_CPU' static DEFINE_PER_CPU(__u32, random_nonce); ^ include/linux/percpu-defs.h:92:26: error: section attribute cannot be specified for local variables __PCPU_DUMMY_ATTRS char __pcpu_unique_##name; \ ^ include/linux/percpu-defs.h:116:2: note: in expansion of macro 'DEFINE_PER_CPU_SECTION' DEFINE_PER_CPU_SECTION(type, name, "") ^ drivers/char/random.c:1134:9: note: in expansion of macro 'DEFINE_PER_CPU' static DEFINE_PER_CPU(__u32, random_nonce); ^ >> include/linux/percpu-defs.h:92:26: error: declaration of >> '__pcpu_unique_random_nonce' with no linkage follows extern declaration __PCPU_DUMMY_ATTRS char __pcpu_unique_##name; \ ^ include/linux/percpu-defs.h:116:2: note: in expansion of macro 'DEFINE_PER_CPU_SECTION' DEFINE_PER_CPU_SECTION(type, name, "") ^ drivers/char/random.c:1134:9: note: in expansion of macro 'DEFINE_PER_CPU' static DEFINE_PER_CPU(__u32, random_nonce); ^ include/linux/percpu-defs.h:91:33: note: previous declaration of '__pcpu_unique_random_nonce' was here extern __PCPU_DUMMY_ATTRS char __pcpu_unique_##name; \ ^ include/linux/percpu-defs.h:116:2: note: in expansion of macro 'DEFINE_PER_CPU_SECTION' DEFINE_PER_CPU_SECTION(type, name, "") ^ drivers/char/random.c:1134:9: note: in expansion of macro 'DEFINE_PER_CPU' static DEFINE_PER_CPU(__u32, random_nonce); ^ drivers/char/random.c:1134:31: error: section attribute cannot be specified for local variables static DEFINE_PER_CPU(__u32, random_nonce); ^ include/linux/percpu-defs.h:93:44: note: in definition of macro 'DEFINE_PER_CPU_SECTION' extern __PCPU_ATTRS(sec) __typeof__(type) name; \ ^ drivers/char/random.c:1134:9: note: in expansion of macro 'DEFINE_PER_CPU' static DEFINE_PER_CPU(__u32, random_nonce); ^ drivers/char/random.c:1134:31: error: section attribute cannot be specified for local variables static DEFINE_PER_CPU(__u32, random_nonce); ^ include/linux/percpu-defs.h:95:19: note: in definition of macro 'DEFINE_PER_CPU_SECTION' __typeof__(type) name ^ drivers/char/random.c:1134:9: note: in expansion of macro 'DEFINE_PER_CPU' static DEFINE_PER_CPU(__u32, random_nonce); ^ drivers/char/random.c:1134:31: error: weak declaration of 'random_nonce' must be public static DEFINE_PER_CPU(__u32, random_nonce); ^ include/linux/percpu-defs.h:95:19: note: in definition of macro 'DEFINE_PER_CPU_SECTION' __typeof__(type) name ^ drivers/char/random.c:1134:9: note: in expansion of macro 'DEFINE_PER_CPU' static DEFINE_PER_CPU(__u32, random_nonce); ^ drivers/char/random.c:1134:31: error: declaration of 'random_nonce' with no linkage follows extern declaration static DEFINE_PER_CPU(__u32, random_nonce); ^ include/linux/percpu-defs.h:95:19: note: in definition of macro 'DEFINE_PER_CPU_SECTION' __typeof__(type) name ^ drivers/char/random.c:1134:9: note: in expansion of macro 'DEFINE_PER_CPU' static DEFINE_PER_CPU(__u32, random_nonce); ^ drivers/char/random.c:1134:31: note: previous declaration of 'random_nonce' was here static DEFINE_PER_CPU(__u32, random_nonce); ^ include/linux/percpu-defs.h:93:44: note: in definition of macro 'DEFINE_PER_CPU_SECTION' extern __PCPU_ATTRS(sec) __typeof__(type) name; \ ^ drivers/char/random.c:1134:9: note: in expansion of macro 'DEFINE_PER_CPU' static DEFINE_PER_CPU(__u32, random_nonce); ^ vim +91 include/linux/percpu-defs.h 7c756e6e Tejun Heo 2009-06-24 85 #define DECLARE_PER_CPU_SECTION(type, name, sec) \ 7c756e6e Tejun Heo 2009-06-24 86 extern __PCPU_DUMMY_ATTRS char __pcpu_scope_##name; \ dd17c8f7 Rusty Russell 2009-10-29 87 extern __PCPU_ATTRS(sec) __typeof__(type) name 7c756e6e Tejun Heo 2009-06-24 88 7c756e6e Tejun Heo 2009-06-24 89 #define DEFINE_PER_CPU_SECTION(type, name, sec) \ 7c756e6e Tejun Heo 2009-06-24 90 __PCPU_DUMMY_ATTRS char __pcpu_scope_##name; \ 0f5e4816 Tejun Heo 2009-10-29 @91 extern __PCPU_DUMMY_ATTRS char __pcpu_unique_##name; \ 7c756e6e Tejun Heo 2009-06-24 @92 __PCPU_DUMMY_ATTRS char __pcpu_unique_##name; \ b1a0fbfd Tejun Heo 2013-12-04 93 extern __PCPU_ATTRS(sec) __typeof__(type) name; \ c43768cb Tejun Heo 2009-07-04 94 __PCPU_ATTRS(sec) PER_CPU_DEF_ATTRIBUTES __weak \ dd17c8f7 Rusty Russell 2009-10-29 95 __typeof__(type) name :::::: The code at line 91 was first introduced by commit :::::: 0f5e4816dbf38ce9488e611ca2296925c1e90d5e percpu: remove some sparse warnings :::::: TO: Tejun Heo <t...@kernel.org> :::::: CC: Tejun Heo <t...@kernel.org> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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