Re: [PATCH 1/2] riscv/bitops: Remove smp_mb__{before,after}_clear_bit()

From: Palmer Dabbelt
Date: Tue Sep 25 2018 - 13:57:27 EST


On Tue, 25 Sep 2018 10:49:06 PDT (-0700), andrea.parri@xxxxxxxxxxxxxxxxxxxx wrote:
On Tue, Sep 25, 2018 at 10:19:24AM -0700, Palmer Dabbelt wrote:
On Tue, 25 Sep 2018 05:12:24 PDT (-0700), andrea.parri@xxxxxxxxxxxxxxxxxxxx wrote:
> The barriers are unused; remove their definition.
>
> Signed-off-by: Andrea Parri <andrea.parri@xxxxxxxxxxxxxxxxxxxx>
> Cc: Palmer Dabbelt <palmer@xxxxxxxxxx>
> Cc: Albert Ou <aou@xxxxxxxxxxxxxxxxx>
> Cc: <linux-riscv@xxxxxxxxxxxxxxxxxxx>
> ---
> arch/riscv/include/asm/bitops.h | 5 -----
> 1 file changed, 5 deletions(-)
>
> diff --git a/arch/riscv/include/asm/bitops.h b/arch/riscv/include/asm/bitops.h
> index f30daf26f08f4..01db98dfd0435 100644
> --- a/arch/riscv/include/asm/bitops.h
> +++ b/arch/riscv/include/asm/bitops.h
> @@ -23,11 +23,6 @@
> #include <asm/barrier.h>
> #include <asm/bitsperlong.h>
>
> -#ifndef smp_mb__before_clear_bit
> -#define smp_mb__before_clear_bit() smp_mb()
> -#define smp_mb__after_clear_bit() smp_mb()
> -#endif /* smp_mb__before_clear_bit */
> -
> #include <asm-generic/bitops/__ffs.h>
> #include <asm-generic/bitops/ffz.h>
> #include <asm-generic/bitops/fls.h>

Reviewed-by: Palmer Dabbelt <palmer@xxxxxxxxxx>

Thank you.



Do you want me to take this via the RISC-V tree? I only ended up with patch
1/2 in my inbox, and I probably shouldn't take both.

I expected this to go via the RISC-V tree and 2/2 via the H8/300 tree,
but really no preference from me as long as they get upstreamed. ;-)

Works for me. I'll take this one.