[2/6] x86: Move arch_has_random* inside CONFIG_ARCH_RANDOM
diff mbox series

Message ID 20191028210559.8289-3-rth@twiddle.net
State New
Headers show
Series
  • Improvements for random.h/archrandom.h
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Commit Message

Richard Henderson Oct. 28, 2019, 9:05 p.m. UTC
These functions are declared generically without CONFIG_ARCH_RANDOM.
The only reason this compiles for x86 is that we currently have a
mix of inline functions are preprocessor defines.

Signed-off-by: Richard Henderson <rth@twiddle.net>
---
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
---
 arch/x86/include/asm/archrandom.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

Patch
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diff --git a/arch/x86/include/asm/archrandom.h b/arch/x86/include/asm/archrandom.h
index af45e1452f09..5904d7d9e703 100644
--- a/arch/x86/include/asm/archrandom.h
+++ b/arch/x86/include/asm/archrandom.h
@@ -73,10 +73,6 @@  static inline bool rdseed_int(unsigned int *v)
 	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,
@@ -84,6 +80,10 @@  static inline bool rdseed_int(unsigned int *v)
  */
 #ifdef CONFIG_ARCH_RANDOM
 
+/* 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)
+
 static inline bool arch_get_random_long(unsigned long *v)
 {
 	return arch_has_random() ? rdrand_long(v) : false;