tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/asm head: 8d0d5a8abd88fa9671867b8b8ab4ee61b85c0c81 commit: b0bdba9825feefa46998f29225736ef9bd77bd2e [11/12] x86, asm: Use CC_SET()/CC_OUT() and static_cpu_has() in archrandom.h config: x86_64-randconfig-s2-06080621 (attached as .config) compiler: gcc-6 (Debian 6.1.1-1) 6.1.1 20160430 reproduce: git checkout b0bdba9825feefa46998f29225736ef9bd77bd2e # save the attached .config to linux build tree make ARCH=x86_64
All errors (new ones prefixed by >>):
In file included from arch/x86/kernel/cpu/common.c:21:0:
>> arch/x86/include/asm/archrandom.h:95:20: error: redefinition of
>> 'arch_get_random_long'
static inline bool arch_get_random_long(unsigned long *v)
^~~~~~~~~~~~~~~~~~~~
In file included from arch/x86/include/asm/stackprotector.h:43:0,
from arch/x86/kernel/cpu/common.c:18:
include/linux/random.h:98:20: note: previous definition of
'arch_get_random_long' was here
static inline bool arch_get_random_long(unsigned long *v)
^~~~~~~~~~~~~~~~~~~~
In file included from arch/x86/kernel/cpu/common.c:21:0:
>> arch/x86/include/asm/archrandom.h:100:20: error: redefinition of
>> 'arch_get_random_int'
static inline bool arch_get_random_int(unsigned int *v)
^~~~~~~~~~~~~~~~~~~
In file included from arch/x86/include/asm/stackprotector.h:43:0,
from arch/x86/kernel/cpu/common.c:18:
include/linux/random.h:102:20: note: previous definition of
'arch_get_random_int' was here
static inline bool arch_get_random_int(unsigned int *v)
^~~~~~~~~~~~~~~~~~~
In file included from arch/x86/kernel/cpu/common.c:21:0:
>> arch/x86/include/asm/archrandom.h:105:20: error: redefinition of
>> 'arch_get_random_seed_long'
static inline bool arch_get_random_seed_long(unsigned long *v)
^~~~~~~~~~~~~~~~~~~~~~~~~
In file included from arch/x86/include/asm/stackprotector.h:43:0,
from arch/x86/kernel/cpu/common.c:18:
include/linux/random.h:110:20: note: previous definition of
'arch_get_random_seed_long' was here
static inline bool arch_get_random_seed_long(unsigned long *v)
^~~~~~~~~~~~~~~~~~~~~~~~~
In file included from arch/x86/kernel/cpu/common.c:21:0:
>> arch/x86/include/asm/archrandom.h:110:20: error: redefinition of
>> 'arch_get_random_seed_int'
static inline bool arch_get_random_seed_int(unsigned int *v)
^~~~~~~~~~~~~~~~~~~~~~~~
In file included from arch/x86/include/asm/stackprotector.h:43:0,
from arch/x86/kernel/cpu/common.c:18:
include/linux/random.h:114:20: note: previous definition of
'arch_get_random_seed_int' was here
static inline bool arch_get_random_seed_int(unsigned int *v)
^~~~~~~~~~~~~~~~~~~~~~~~
vim +/arch_get_random_long +95 arch/x86/include/asm/archrandom.h
89 }
90
91 /* Conditional execution based on CPU type */
92 #define arch_has_random() static_cpu_has(X86_FEATURE_RDRAND)
93 #define arch_has_random_seed() static_cpu_has(X86_FEATURE_RDSEED)
94
> 95 static inline bool arch_get_random_long(unsigned long *v)
96 {
97 return arch_has_random() ? rdrand_long(v) : false;
98 }
99
> 100 static inline bool arch_get_random_int(unsigned int *v)
101 {
102 return arch_has_random() ? rdrand_int(v) : false;
103 }
104
> 105 static inline bool arch_get_random_seed_long(unsigned long *v)
106 {
107 return arch_has_random_seed() ? rdseed_long(v) : false;
108 }
109
> 110 static inline bool arch_get_random_seed_int(unsigned int *v)
111 {
112 return arch_has_random_seed() ? rdseed_int(v) : false;
113 }
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