From: Richard Henderson richard.henderson@linaro.org
commit 5f2ed7f5b99b54389b74e53309677831ac9cb9d7 upstream.
Use the expansion of these macros directly in arch_get_random_*.
These symbols are currently part of the generic archrandom.h interface, but are currently unused and can be removed.
Signed-off-by: Richard Henderson rth@twiddle.net Signed-off-by: Mark Brown broonie@kernel.org Link: https://lore.kernel.org/r/20200110145422.49141-2-broonie@kernel.org Signed-off-by: Theodore Ts'o tytso@mit.edu Signed-off-by: Jason A. Donenfeld Jason@zx2c4.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/include/asm/archrandom.h | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-)
--- a/arch/x86/include/asm/archrandom.h +++ b/arch/x86/include/asm/archrandom.h @@ -73,10 +73,6 @@ static inline bool rdseed_int(unsigned i return ok; }
-/* Conditional execution based on CPU type */ -#define arch_has_random() static_cpu_has(X86_FEATURE_RDRAND) -#define arch_has_random_seed() static_cpu_has(X86_FEATURE_RDSEED) - /* * These are the generic interfaces; they must not be declared if the * stubs in <linux/random.h> are to be invoked, @@ -86,22 +82,22 @@ static inline bool rdseed_int(unsigned i
static inline bool arch_get_random_long(unsigned long *v) { - return arch_has_random() ? rdrand_long(v) : false; + return static_cpu_has(X86_FEATURE_RDRAND) ? rdrand_long(v) : false; }
static inline bool arch_get_random_int(unsigned int *v) { - return arch_has_random() ? rdrand_int(v) : false; + return static_cpu_has(X86_FEATURE_RDRAND) ? rdrand_int(v) : false; }
static inline bool arch_get_random_seed_long(unsigned long *v) { - return arch_has_random_seed() ? rdseed_long(v) : false; + return static_cpu_has(X86_FEATURE_RDSEED) ? rdseed_long(v) : false; }
static inline bool arch_get_random_seed_int(unsigned int *v) { - return arch_has_random_seed() ? rdseed_int(v) : false; + return static_cpu_has(X86_FEATURE_RDSEED) ? rdseed_int(v) : false; }
extern void x86_init_rdrand(struct cpuinfo_x86 *c);