Just noticed this scroll away when compiling todays 4.13-rc5+git on a
sparc64 machine with old debian gcc version 4.9.2 (Debian 4.9.2-1).
CC arch/sparc/kernel/nmi.o
In file included from ./include/linux/compiler.h:58:0,
from ./include/uapi/linux/stddef.h:1,
from ./include/linux/stddef.h:4,
from ./include/uapi/linux/posix_types.h:4,
from ./include/uapi/linux/types.h:13,
from ./include/linux/types.h:5,
from ./include/linux/proc_fs.h:7,
from kernel/cpu.c:6:
kernel/cpu.c: In function 'cpu_up':
./arch/sparc/include/asm/percpu_64.h:13:13: warning: array subscript is above array bounds [-Warray-bounds]
(trap_block[(__cpu)].__per_cpu_base)
^
./include/linux/compiler-gcc.h:53:26: note: in definition of macro 'RELOC_HIDE'
(typeof(ptr)) (__ptr + (off)); \
^
./include/linux/percpu-defs.h:223:2: note: in expansion of macro 'SHIFT_PERCPU_PTR'
SHIFT_PERCPU_PTR((ptr), per_cpu_offset((cpu))); \
^
./arch/sparc/include/asm/percpu_64.h:14:28: note: in expansion of macro '__per_cpu_offset'
#define per_cpu_offset(x) (__per_cpu_offset(x))
^
./include/linux/percpu-defs.h:223:26: note: in expansion of macro 'per_cpu_offset'
SHIFT_PERCPU_PTR((ptr), per_cpu_offset((cpu))); \
^
kernel/cpu.c:802:31: note: in expansion of macro 'per_cpu_ptr'
struct cpuhp_cpu_state *st = per_cpu_ptr(&cpuhp_state, cpu);
^
--
Meelis Roos (mroos@xxxxxxxx)
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