Re: [PATCH] atomic64: No need for CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE

2016-09-08 Thread Peter Zijlstra
On Thu, Sep 08, 2016 at 09:28:18AM -0700, Vineet Gupta wrote: > This came to light when implementing native 64-bit atomics for ARCv2. > > The atomic64 self-test code uses CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE > to check whether atomic64_dec_if_positive() is available. > It seems it was needed

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[PATCH] atomic64: No need for CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE

2016-09-08 Thread Vineet Gupta
This came to light when implementing native 64-bit atomics for ARCv2. The atomic64 self-test code uses CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE to check whether atomic64_dec_if_positive() is available. It seems it was needed when not every arch defined it. However as of current code the Kconfig