On Sat, Dec 01, 2018 at 01:01:56AM +0100, Andrea Parri wrote:
> If an architecture does not define the atomic_{cmp,}xchg_*() variants,
> the generic implementation defaults them to the fully-ordered version.
>
> riscv's had its own variants since "the beginning", but it never told
> (#define-d these for) the generic implementation: it is time to do so.
>
> Signed-off-by: Andrea Parri <andrea.pa...@amarulasolutions.com>
> Cc: Palmer Dabbelt <pal...@sifive.com>
> Cc: Albert Ou <a...@eecs.berkeley.edu>
> Cc: Will Deacon <will.dea...@arm.com>
> Cc: Peter Zijlstra <pet...@infradead.org>
> Cc: Boqun Feng <boqun.f...@gmail.com>
Acked-by: Peter Zijlstra (Intel) <pet...@infradead.org>
> ---
> arch/riscv/include/asm/atomic.h | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
> diff --git a/arch/riscv/include/asm/atomic.h b/arch/riscv/include/asm/atomic.h
> index c452359c9cb8a..93826771b616a 100644
> --- a/arch/riscv/include/asm/atomic.h
> +++ b/arch/riscv/include/asm/atomic.h
> @@ -303,6 +303,15 @@ c_t atomic##prefix##_cmpxchg(atomic##prefix##_t *v, c_t
> o, c_t n) \
>
> ATOMIC_OPS()
>
> +#define atomic_xchg_relaxed atomic_xchg_relaxed
> +#define atomic_xchg_acquire atomic_xchg_acquire
> +#define atomic_xchg_release atomic_xchg_release
> +#define atomic_xchg atomic_xchg
> +#define atomic_cmpxchg_relaxed atomic_cmpxchg_relaxed
> +#define atomic_cmpxchg_acquire atomic_cmpxchg_acquire
> +#define atomic_cmpxchg_release atomic_cmpxchg_release
> +#define atomic_cmpxchg atomic_cmpxchg
> +
> #undef ATOMIC_OPS
> #undef ATOMIC_OP
>
> --
> 2.17.1
>
