Re: [dpdk-dev] [dpdk-stable] [PATCH] eal/ppc: fix rte_smp_mb for a compilation error with else clause

[Luca Boccassi <bluca@debian.org>]

On Tue, 2018-02-27 at 20:43 +0530, Gowrishankar wrote:
> From: Gowrishankar Muthukrishnan <gowrishankar.m@linux.vnet.ibm.com>
> 
> This patch fixes the compilation problem with rte_smp_mb,
> when there is else clause following it, as in test_barrier.c.
> 
> Fixes: 05c3fd7110 ("eal/ppc: atomic operations for IBM Power")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Gowrishankar Muthukrishnan <gowrishankar.m@linux.vnet.
> ibm.com>
> ---
>  lib/librte_eal/common/include/arch/ppc_64/rte_atomic.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/lib/librte_eal/common/include/arch/ppc_64/rte_atomic.h
> b/lib/librte_eal/common/include/arch/ppc_64/rte_atomic.h
> index 39fce7b..1821774 100644
> --- a/lib/librte_eal/common/include/arch/ppc_64/rte_atomic.h
> +++ b/lib/librte_eal/common/include/arch/ppc_64/rte_atomic.h
> @@ -55,7 +55,7 @@
>   * Guarantees that the LOAD and STORE operations generated before
> the
>   * barrier occur before the LOAD and STORE operations generated
> after.
>   */
> -#define	rte_mb()  {asm volatile("sync" : : : "memory"); }
> +#define	rte_mb()  asm volatile("sync" : : : "memory")
>  
>  /**
>   * Write memory barrier.

Acked-by: Luca Boccassi <bluca@debian.org>

Maintainers and reviewers, 18.02 build on ppc64 is currently broken and
I'd like to backport this patch to Debian ASAP and then backport to
16.11, so a quick review would be much much appreciated. Thank you!

-- 
Kind regards,
Luca Boccassi