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Subject[PATCH 4.19 139/234] powerpc: define get_cycles macro for arch-override
From: "Jason A. Donenfeld" <>

commit 408835832158df0357e18e96da7f2d1ed6b80e7f upstream.

PowerPC defines a get_cycles() function, but it does not do the usual
`#define get_cycles get_cycles` dance, making it impossible for generic
code to see if an arch-specific function was defined. While the
get_cycles() ifdef is not currently used, the following timekeeping
patch in this series will depend on the macro existing (or not existing)
when defining random_get_entropy().

Cc: Thomas Gleixner <>
Cc: Arnd Bergmann <>
Cc: Benjamin Herrenschmidt <>
Cc: Paul Mackerras <>
Acked-by: Michael Ellerman <>
Signed-off-by: Jason A. Donenfeld <>
Signed-off-by: Greg Kroah-Hartman <>
arch/powerpc/include/asm/timex.h | 1 +
1 file changed, 1 insertion(+)

--- a/arch/powerpc/include/asm/timex.h
+++ b/arch/powerpc/include/asm/timex.h
@@ -50,6 +50,7 @@ static inline cycles_t get_cycles(void)
return ret;
+#define get_cycles get_cycles

#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_TIMEX_H */

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